{
    "uri": "https://www.find-tender.service.gov.uk/api/1.0/ocdsRecordPackages/ocds-h6vhtk-06e5ea",
    "publisher": {
        "name": "Cabinet Office",
        "scheme": "GB-GOR",
        "uid": "D2",
        "uri": "https://www.gov.uk/government/organisations/cabinet-office"
    },
    "publishedDate": "2026-08-17T16:19:46+01:00",
    "license": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
    "publicationPolicy": "https://www.gov.uk/government/publications/open-contracting",
    "version": "1.1",
    "extensions": [
        "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json",
        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_amendment_rationale_classifications_extension/master/extension.json",
        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_budget_breakdown_extension/master/extension.json",
        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_contract_completion_extension/master/extension.json",
        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_documentation_extension/master/extension.json",
        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_pagination_extension/master/extension.json",
        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_suitability_extension/master/extension.json",
        "https://raw.githubusercontent.com/portaledcahn/ocds_Links_extension/main/extension.json",
        "https://raw.githubusercontent.com/cabinetoffice/ocds_uk_extension/main/extension.json"
    ],
    "packages": [
        "https://www.find-tender.service.gov.uk/api/1.0/ocdsRecordPackages/ocds-h6vhtk-06e5ea"
    ],
    "records": [
        {
            "ocid": "ocds-h6vhtk-06e5ea",
            "releases": [
                {
                    "ocid": "ocds-h6vhtk-06e5ea",
                    "id": "078250-2026",
                    "tag": [
                        "planning"
                    ],
                    "date": "2026-08-17T16:19:46+01:00",
                    "initiationType": "tender",
                    "planning": {
                        "documents": [
                            {
                                "id": "078250-2026",
                                "documentType": "plannedProcurementNotice",
                                "noticeType": "UK3",
                                "description": "Planned procurement notice on Find a Tender",
                                "url": "https://www.find-tender.service.gov.uk/Notice/078250-2026",
                                "datePublished": "2026-08-17T16:19:46+01:00",
                                "format": "text/html"
                            }
                        ]
                    },
                    "parties": [
                        {
                            "name": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC",
                            "id": "GB-COH-02366977",
                            "identifier": {
                                "scheme": "GB-COH",
                                "id": "02366977"
                            },
                            "additionalIdentifiers": [
                                {
                                    "scheme": "GB-PPON",
                                    "id": "PHHJ-6513-BWZT"
                                }
                            ],
                            "address": {
                                "streetAddress": "1 - 3 Strand",
                                "locality": "London",
                                "postalCode": "WC2N 5EH",
                                "country": "GB",
                                "countryName": "United Kingdom",
                                "region": "UKI32"
                            },
                            "contactPoint": {
                                "name": "Alana  Walburn",
                                "email": "Alana.Walburn@nationalgrid.com"
                            },
                            "roles": [
                                "buyer"
                            ],
                            "details": {
                                "classifications": [
                                    {
                                        "scheme": "UK_CA_TYPE",
                                        "id": "privateUtility",
                                        "description": "Private utility"
                                    }
                                ]
                            }
                        }
                    ],
                    "buyer": {
                        "id": "GB-COH-02366977",
                        "name": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC"
                    },
                    "tender": {
                        "id": "WS5688383780",
                        "legalBasis": {
                            "id": "2023/54",
                            "scheme": "UKPGA",
                            "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents"
                        },
                        "title": "ISS Works at Walham and Pentir",
                        "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified suppliers capable of delivering a fully integrated security solution for critical national infrastructure sites at Walham and Pentir.",
                        "status": "planned",
                        "items": [
                            {
                                "id": "1",
                                "additionalClassifications": [
                                    {
                                        "scheme": "CPV",
                                        "id": "32235000",
                                        "description": "Closed-circuit surveillance system"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "34928200",
                                        "description": "Fences"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "35120000",
                                        "description": "Surveillance and security systems and devices"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "44221300",
                                        "description": "Gates"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45220000",
                                        "description": "Engineering works and construction works"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45232220",
                                        "description": "Substation construction work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312100",
                                        "description": "Fire-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312200",
                                        "description": "Burglar-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45314000",
                                        "description": "Installation of telecommunications equipment"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45340000",
                                        "description": "Fencing, railing and safety equipment installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79415200",
                                        "description": "Design consultancy services"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79933000",
                                        "description": "Design support services"
                                    }
                                ],
                                "deliveryAddresses": [
                                    {
                                        "region": "UK",
                                        "country": "GB",
                                        "countryName": "United Kingdom"
                                    }
                                ],
                                "relatedLot": "1"
                            },
                            {
                                "id": "2",
                                "additionalClassifications": [
                                    {
                                        "scheme": "CPV",
                                        "id": "32235000",
                                        "description": "Closed-circuit surveillance system"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "34928200",
                                        "description": "Fences"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "35120000",
                                        "description": "Surveillance and security systems and devices"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "44221300",
                                        "description": "Gates"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45220000",
                                        "description": "Engineering works and construction works"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45232220",
                                        "description": "Substation construction work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312100",
                                        "description": "Fire-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312200",
                                        "description": "Burglar-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45314000",
                                        "description": "Installation of telecommunications equipment"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45340000",
                                        "description": "Fencing, railing and safety equipment installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79415200",
                                        "description": "Design consultancy services"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79933000",
                                        "description": "Design support services"
                                    }
                                ],
                                "deliveryAddresses": [
                                    {
                                        "region": "UK",
                                        "country": "GB",
                                        "countryName": "United Kingdom"
                                    }
                                ],
                                "relatedLot": "2"
                            }
                        ],
                        "procurementMethod": "selective",
                        "procurementMethodDetails": "Competitive flexible procedure",
                        "procedure": {
                            "features": "To be advised."
                        },
                        "mainProcurementCategory": "works",
                        "specialRegime": [
                            "utilities"
                        ],
                        "aboveThreshold": true,
                        "submissionTerms": {
                            "languages": [
                                "en"
                            ]
                        },
                        "expressionOfInterestDeadline": "2026-10-07T17:00:00+01:00",
                        "awardPeriod": {
                            "endDate": "2027-01-28T23:59:59Z"
                        },
                        "lots": [
                            {
                                "id": "1",
                                "title": "ISS Walham, Gloucestershire",
                                "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Walham.",
                                "status": "planned",
                                "contractPeriod": {
                                    "startDate": "2027-02-26T00:00:00Z",
                                    "endDate": "2028-02-25T23:59:59Z"
                                }
                            },
                            {
                                "id": "2",
                                "title": "ISS Pentir, Gwynedd",
                                "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Pentir.",
                                "status": "planned",
                                "contractPeriod": {
                                    "startDate": "2027-02-26T00:00:00Z",
                                    "endDate": "2028-02-25T23:59:59Z"
                                }
                            }
                        ],
                        "documents": [
                            {
                                "id": "L-1",
                                "documentType": "biddingDocuments",
                                "description": "Please complete the Microsoft Form to submit an Expression of Interest to receive tender notice documentation.\nThe information collected will be used as part of the first-stage SAP Ariba onboarding process for National Grid. All fields are mandatory to facilitate Supplier Lifecycle and Performance (SLP) pre-registration and should be completed accurately and in full.\nIn addition, your organisation must be registered on the Central Digital Platform (CDP). If you have not yet registered, please do so using the following link: https://supplierregistration.cabinetoffice.gov.uk/login",
                                "url": "https://forms.cloud.microsoft/r/3cr4ANRWaJ"
                            }
                        ],
                        "communication": {
                            "futureNoticeDate": "2026-09-28T23:59:59+01:00"
                        }
                    },
                    "language": "en",
                    "extensions": [
                        "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json",
                        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_amendment_rationale_classifications_extension/master/extension.json",
                        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_budget_breakdown_extension/master/extension.json",
                        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_contract_completion_extension/master/extension.json",
                        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_documentation_extension/master/extension.json",
                        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_pagination_extension/master/extension.json",
                        "https://raw.githubusercontent.com/open-contracting-extensions/ocds_suitability_extension/master/extension.json",
                        "https://raw.githubusercontent.com/portaledcahn/ocds_Links_extension/main/extension.json",
                        "https://raw.githubusercontent.com/cabinetoffice/ocds_uk_extension/main/extension.json"
                    ]
                }
            ],
            "compiledRelease": {
                "tag": [
                    "compiled"
                ],
                "id": "ocds-h6vhtk-06e5ea-2026-08-17T16:19:46+01:00",
                "date": "2026-08-17T16:19:46+01:00",
                "ocid": "ocds-h6vhtk-06e5ea",
                "initiationType": "tender",
                "planning": {
                    "documents": [
                        {
                            "id": "078250-2026",
                            "documentType": "plannedProcurementNotice",
                            "noticeType": "UK3",
                            "description": "Planned procurement notice on Find a Tender",
                            "url": "https://www.find-tender.service.gov.uk/Notice/078250-2026",
                            "datePublished": "2026-08-17T16:19:46+01:00",
                            "format": "text/html"
                        }
                    ]
                },
                "parties": [
                    {
                        "id": "GB-COH-02366977",
                        "name": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC",
                        "identifier": {
                            "scheme": "GB-COH",
                            "id": "02366977"
                        },
                        "additionalIdentifiers": [
                            {
                                "scheme": "GB-PPON",
                                "id": "PHHJ-6513-BWZT"
                            }
                        ],
                        "address": {
                            "streetAddress": "1 - 3 Strand",
                            "locality": "London",
                            "postalCode": "WC2N 5EH",
                            "country": "GB",
                            "countryName": "United Kingdom",
                            "region": "UKI32"
                        },
                        "contactPoint": {
                            "name": "Alana  Walburn",
                            "email": "Alana.Walburn@nationalgrid.com"
                        },
                        "roles": [
                            "buyer"
                        ],
                        "details": {
                            "classifications": [
                                {
                                    "scheme": "UK_CA_TYPE",
                                    "id": "privateUtility",
                                    "description": "Private utility"
                                }
                            ]
                        }
                    }
                ],
                "buyer": {
                    "id": "GB-COH-02366977",
                    "name": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC"
                },
                "tender": {
                    "id": "WS5688383780",
                    "legalBasis": {
                        "id": "2023/54",
                        "scheme": "UKPGA",
                        "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents"
                    },
                    "title": "ISS Works at Walham and Pentir",
                    "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified suppliers capable of delivering a fully integrated security solution for critical national infrastructure sites at Walham and Pentir.",
                    "status": "planned",
                    "items": [
                        {
                            "id": "1",
                            "additionalClassifications": [
                                {
                                    "scheme": "CPV",
                                    "id": "32235000",
                                    "description": "Closed-circuit surveillance system"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "34928200",
                                    "description": "Fences"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "35120000",
                                    "description": "Surveillance and security systems and devices"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "44221300",
                                    "description": "Gates"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45220000",
                                    "description": "Engineering works and construction works"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45232220",
                                    "description": "Substation construction work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45312100",
                                    "description": "Fire-alarm system installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45312200",
                                    "description": "Burglar-alarm system installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45314000",
                                    "description": "Installation of telecommunications equipment"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45340000",
                                    "description": "Fencing, railing and safety equipment installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "79415200",
                                    "description": "Design consultancy services"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "79933000",
                                    "description": "Design support services"
                                }
                            ],
                            "deliveryAddresses": [
                                {
                                    "region": "UK",
                                    "country": "GB",
                                    "countryName": "United Kingdom"
                                }
                            ],
                            "relatedLot": "1"
                        },
                        {
                            "id": "2",
                            "additionalClassifications": [
                                {
                                    "scheme": "CPV",
                                    "id": "32235000",
                                    "description": "Closed-circuit surveillance system"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "34928200",
                                    "description": "Fences"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "35120000",
                                    "description": "Surveillance and security systems and devices"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "44221300",
                                    "description": "Gates"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45220000",
                                    "description": "Engineering works and construction works"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45232220",
                                    "description": "Substation construction work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45312100",
                                    "description": "Fire-alarm system installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45312200",
                                    "description": "Burglar-alarm system installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45314000",
                                    "description": "Installation of telecommunications equipment"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45340000",
                                    "description": "Fencing, railing and safety equipment installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "79415200",
                                    "description": "Design consultancy services"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "79933000",
                                    "description": "Design support services"
                                }
                            ],
                            "deliveryAddresses": [
                                {
                                    "region": "UK",
                                    "country": "GB",
                                    "countryName": "United Kingdom"
                                }
                            ],
                            "relatedLot": "2"
                        }
                    ],
                    "procurementMethod": "selective",
                    "procurementMethodDetails": "Competitive flexible procedure",
                    "procedure": {
                        "features": "To be advised."
                    },
                    "mainProcurementCategory": "works",
                    "specialRegime": [
                        "utilities"
                    ],
                    "aboveThreshold": true,
                    "submissionTerms": {
                        "languages": [
                            "en"
                        ]
                    },
                    "expressionOfInterestDeadline": "2026-10-07T17:00:00+01:00",
                    "awardPeriod": {
                        "endDate": "2027-01-28T23:59:59Z"
                    },
                    "lots": [
                        {
                            "id": "1",
                            "title": "ISS Walham, Gloucestershire",
                            "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Walham.",
                            "status": "planned",
                            "contractPeriod": {
                                "startDate": "2027-02-26T00:00:00Z",
                                "endDate": "2028-02-25T23:59:59Z"
                            }
                        },
                        {
                            "id": "2",
                            "title": "ISS Pentir, Gwynedd",
                            "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Pentir.",
                            "status": "planned",
                            "contractPeriod": {
                                "startDate": "2027-02-26T00:00:00Z",
                                "endDate": "2028-02-25T23:59:59Z"
                            }
                        }
                    ],
                    "documents": [
                        {
                            "id": "L-1",
                            "documentType": "biddingDocuments",
                            "description": "Please complete the Microsoft Form to submit an Expression of Interest to receive tender notice documentation.\nThe information collected will be used as part of the first-stage SAP Ariba onboarding process for National Grid. All fields are mandatory to facilitate Supplier Lifecycle and Performance (SLP) pre-registration and should be completed accurately and in full.\nIn addition, your organisation must be registered on the Central Digital Platform (CDP). If you have not yet registered, please do so using the following link: https://supplierregistration.cabinetoffice.gov.uk/login",
                            "url": "https://forms.cloud.microsoft/r/3cr4ANRWaJ"
                        }
                    ],
                    "communication": {
                        "futureNoticeDate": "2026-09-28T23:59:59+01:00"
                    }
                },
                "language": "en",
                "extensions": [
                    "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json",
                    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_amendment_rationale_classifications_extension/master/extension.json",
                    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_budget_breakdown_extension/master/extension.json",
                    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_contract_completion_extension/master/extension.json",
                    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_documentation_extension/master/extension.json",
                    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_pagination_extension/master/extension.json",
                    "https://raw.githubusercontent.com/open-contracting-extensions/ocds_suitability_extension/master/extension.json",
                    "https://raw.githubusercontent.com/portaledcahn/ocds_Links_extension/main/extension.json",
                    "https://raw.githubusercontent.com/cabinetoffice/ocds_uk_extension/main/extension.json"
                ]
            },
            "versionedRelease": {
                "ocid": "ocds-h6vhtk-06e5ea",
                "initiationType": [
                    {
                        "releaseID": "078250-2026",
                        "releaseDate": "2026-08-17T16:19:46+01:00",
                        "releaseTag": [
                            "planning"
                        ],
                        "value": "tender"
                    }
                ],
                "planning": {
                    "documents": [
                        {
                            "id": "078250-2026",
                            "documentType": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "plannedProcurementNotice"
                                }
                            ],
                            "noticeType": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "UK3"
                                }
                            ],
                            "description": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "Planned procurement notice on Find a Tender"
                                }
                            ],
                            "url": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "https://www.find-tender.service.gov.uk/Notice/078250-2026"
                                }
                            ],
                            "datePublished": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "2026-08-17T16:19:46+01:00"
                                }
                            ],
                            "format": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "text/html"
                                }
                            ]
                        }
                    ]
                },
                "parties": [
                    {
                        "id": "GB-COH-02366977",
                        "name": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC"
                            }
                        ],
                        "identifier": {
                            "scheme": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "GB-COH"
                                }
                            ],
                            "id": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "02366977"
                                }
                            ]
                        },
                        "additionalIdentifiers": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": [
                                    {
                                        "scheme": "GB-PPON",
                                        "id": "PHHJ-6513-BWZT"
                                    }
                                ]
                            }
                        ],
                        "address": {
                            "streetAddress": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "1 - 3 Strand"
                                }
                            ],
                            "locality": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "London"
                                }
                            ],
                            "postalCode": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "WC2N 5EH"
                                }
                            ],
                            "country": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "GB"
                                }
                            ],
                            "countryName": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "United Kingdom"
                                }
                            ],
                            "region": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "UKI32"
                                }
                            ]
                        },
                        "contactPoint": {
                            "name": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "Alana  Walburn"
                                }
                            ],
                            "email": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "Alana.Walburn@nationalgrid.com"
                                }
                            ]
                        },
                        "roles": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": [
                                    "buyer"
                                ]
                            }
                        ],
                        "details": {
                            "classifications": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": [
                                        {
                                            "scheme": "UK_CA_TYPE",
                                            "id": "privateUtility",
                                            "description": "Private utility"
                                        }
                                    ]
                                }
                            ]
                        }
                    }
                ],
                "buyer": {
                    "id": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "GB-COH-02366977"
                        }
                    ],
                    "name": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC"
                        }
                    ]
                },
                "tender": {
                    "id": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "WS5688383780"
                        }
                    ],
                    "legalBasis": {
                        "id": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "2023/54"
                            }
                        ],
                        "scheme": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "UKPGA"
                            }
                        ],
                        "uri": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "https://www.legislation.gov.uk/ukpga/2023/54/contents"
                            }
                        ]
                    },
                    "title": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "ISS Works at Walham and Pentir"
                        }
                    ],
                    "description": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified suppliers capable of delivering a fully integrated security solution for critical national infrastructure sites at Walham and Pentir."
                        }
                    ],
                    "status": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "planned"
                        }
                    ],
                    "items": [
                        {
                            "id": "1",
                            "additionalClassifications": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": [
                                        {
                                            "scheme": "CPV",
                                            "id": "32235000",
                                            "description": "Closed-circuit surveillance system"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "34928200",
                                            "description": "Fences"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "35120000",
                                            "description": "Surveillance and security systems and devices"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "44221300",
                                            "description": "Gates"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45220000",
                                            "description": "Engineering works and construction works"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45232220",
                                            "description": "Substation construction work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45312100",
                                            "description": "Fire-alarm system installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45312200",
                                            "description": "Burglar-alarm system installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45314000",
                                            "description": "Installation of telecommunications equipment"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45340000",
                                            "description": "Fencing, railing and safety equipment installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "79415200",
                                            "description": "Design consultancy services"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "79933000",
                                            "description": "Design support services"
                                        }
                                    ]
                                }
                            ],
                            "deliveryAddresses": [
                                {
                                    "region": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "UK"
                                        }
                                    ],
                                    "country": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "GB"
                                        }
                                    ],
                                    "countryName": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "United Kingdom"
                                        }
                                    ]
                                }
                            ],
                            "relatedLot": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "1"
                                }
                            ]
                        },
                        {
                            "id": "2",
                            "additionalClassifications": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": [
                                        {
                                            "scheme": "CPV",
                                            "id": "32235000",
                                            "description": "Closed-circuit surveillance system"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "34928200",
                                            "description": "Fences"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "35120000",
                                            "description": "Surveillance and security systems and devices"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "44221300",
                                            "description": "Gates"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45220000",
                                            "description": "Engineering works and construction works"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45232220",
                                            "description": "Substation construction work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45312100",
                                            "description": "Fire-alarm system installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45312200",
                                            "description": "Burglar-alarm system installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45314000",
                                            "description": "Installation of telecommunications equipment"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45340000",
                                            "description": "Fencing, railing and safety equipment installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "79415200",
                                            "description": "Design consultancy services"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "79933000",
                                            "description": "Design support services"
                                        }
                                    ]
                                }
                            ],
                            "deliveryAddresses": [
                                {
                                    "region": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "UK"
                                        }
                                    ],
                                    "country": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "GB"
                                        }
                                    ],
                                    "countryName": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "United Kingdom"
                                        }
                                    ]
                                }
                            ],
                            "relatedLot": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "2"
                                }
                            ]
                        }
                    ],
                    "procurementMethod": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "selective"
                        }
                    ],
                    "procurementMethodDetails": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "Competitive flexible procedure"
                        }
                    ],
                    "procedure": {
                        "features": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "To be advised."
                            }
                        ]
                    },
                    "mainProcurementCategory": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "works"
                        }
                    ],
                    "specialRegime": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": [
                                "utilities"
                            ]
                        }
                    ],
                    "aboveThreshold": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": true
                        }
                    ],
                    "submissionTerms": {
                        "languages": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": [
                                    "en"
                                ]
                            }
                        ]
                    },
                    "expressionOfInterestDeadline": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "2026-10-07T17:00:00+01:00"
                        }
                    ],
                    "awardPeriod": {
                        "endDate": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "2027-01-28T23:59:59Z"
                            }
                        ]
                    },
                    "lots": [
                        {
                            "id": "1",
                            "title": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "ISS Walham, Gloucestershire"
                                }
                            ],
                            "description": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Walham."
                                }
                            ],
                            "status": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "planned"
                                }
                            ],
                            "contractPeriod": {
                                "startDate": [
                                    {
                                        "releaseID": "078250-2026",
                                        "releaseDate": "2026-08-17T16:19:46+01:00",
                                        "releaseTag": [
                                            "planning"
                                        ],
                                        "value": "2027-02-26T00:00:00Z"
                                    }
                                ],
                                "endDate": [
                                    {
                                        "releaseID": "078250-2026",
                                        "releaseDate": "2026-08-17T16:19:46+01:00",
                                        "releaseTag": [
                                            "planning"
                                        ],
                                        "value": "2028-02-25T23:59:59Z"
                                    }
                                ]
                            }
                        },
                        {
                            "id": "2",
                            "title": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "ISS Pentir, Gwynedd"
                                }
                            ],
                            "description": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Pentir."
                                }
                            ],
                            "status": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "planned"
                                }
                            ],
                            "contractPeriod": {
                                "startDate": [
                                    {
                                        "releaseID": "078250-2026",
                                        "releaseDate": "2026-08-17T16:19:46+01:00",
                                        "releaseTag": [
                                            "planning"
                                        ],
                                        "value": "2027-02-26T00:00:00Z"
                                    }
                                ],
                                "endDate": [
                                    {
                                        "releaseID": "078250-2026",
                                        "releaseDate": "2026-08-17T16:19:46+01:00",
                                        "releaseTag": [
                                            "planning"
                                        ],
                                        "value": "2028-02-25T23:59:59Z"
                                    }
                                ]
                            }
                        }
                    ],
                    "documents": [
                        {
                            "id": "L-1",
                            "documentType": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "biddingDocuments"
                                }
                            ],
                            "description": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "Please complete the Microsoft Form to submit an Expression of Interest to receive tender notice documentation.\nThe information collected will be used as part of the first-stage SAP Ariba onboarding process for National Grid. All fields are mandatory to facilitate Supplier Lifecycle and Performance (SLP) pre-registration and should be completed accurately and in full.\nIn addition, your organisation must be registered on the Central Digital Platform (CDP). If you have not yet registered, please do so using the following link: https://supplierregistration.cabinetoffice.gov.uk/login"
                                }
                            ],
                            "url": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "https://forms.cloud.microsoft/r/3cr4ANRWaJ"
                                }
                            ]
                        }
                    ],
                    "communication": {
                        "futureNoticeDate": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "2026-09-28T23:59:59+01:00"
                            }
                        ]
                    }
                },
                "language": [
                    {
                        "releaseID": "078250-2026",
                        "releaseDate": "2026-08-17T16:19:46+01:00",
                        "releaseTag": [
                            "planning"
                        ],
                        "value": "en"
                    }
                ],
                "extensions": [
                    {
                        "releaseID": "078250-2026",
                        "releaseDate": "2026-08-17T16:19:46+01:00",
                        "releaseTag": [
                            "planning"
                        ],
                        "value": [
                            "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json",
                            "https://raw.githubusercontent.com/open-contracting-extensions/ocds_amendment_rationale_classifications_extension/master/extension.json",
                            "https://raw.githubusercontent.com/open-contracting-extensions/ocds_budget_breakdown_extension/master/extension.json",
                            "https://raw.githubusercontent.com/open-contracting-extensions/ocds_contract_completion_extension/master/extension.json",
                            "https://raw.githubusercontent.com/open-contracting-extensions/ocds_documentation_extension/master/extension.json",
                            "https://raw.githubusercontent.com/open-contracting-extensions/ocds_pagination_extension/master/extension.json",
                            "https://raw.githubusercontent.com/open-contracting-extensions/ocds_suitability_extension/master/extension.json",
                            "https://raw.githubusercontent.com/portaledcahn/ocds_Links_extension/main/extension.json",
                            "https://raw.githubusercontent.com/cabinetoffice/ocds_uk_extension/main/extension.json"
                        ]
                    }
                ]
            }
        }
    ]
}