Scope
Reference
ID646
Description
The Contracting Authority is inviting submissions from organisations who can provide a Retrofit Works, including Consultancy Services for at least the next 4 years in accordance with the requirements contained within Document 2a - General Specification
The contracting Authority has considered whether the Works could reasonably be supplied under more than one contract and whether such contract could appropriately be awarded by reference to lots in accordance with section 18(1) of the PA 2023. Following this assessment, the Contracting Authority confirms that the Procurement will be structured into three (3) lots as set out below:
a) Lot 1 - Consultancy Services (including Principal Designer)
b) Lot 2 - Renewable Technologies
c) Lot 3 - Fabric Works
To preserve independence and ensure robust oversight, any supplier submitting a tender for Lot 2 and/or Lot 3 will not be permitted to submit a tender for Lot 1. The Contracting Authority requires that the consultancy role, including the Principal Designer function, remains fully independent from the delivery of works.
Total value (estimated)
- £15,200,000 excluding VAT
- £18,240,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 1 April 2026 to 31 March 2030
- 4 years
Main procurement category
Works
Contract locations
- UKK13 - Gloucestershire
Lot constraints
Maximum number of lots a supplier can bid for: 2
Maximum number of lots a supplier can be awarded: 2
Description of how multiple lots may be awarded:
To preserve independence and ensure robust oversight, any supplier submitting a tender for Lot 2 and/or Lot 3 will not be permitted to submit a tender for Lot 1. The Contracting Authority requires that the consultancy role, including the Principal Designer function, remains fully independent from the delivery of works.
Not the same for all lots
CPV classifications are shown in Lot sections, because they are not the same for all lots.
Lot 1. Consultancy
Description
Under the Construction (Design and Management) Regulations 2015 (CDM 2015), the Principal Designer (PD) is the party appointed by the Client to plan, manage, monitor, and coordinate the pre-construction phase of a project where more than one contractor is involved. For this contract, the appointed consultancy supplier will assume the full duties of the Principal Designer on behalf of the Contracting Authority as the Client.
Lot value (estimated)
- £400,000 excluding VAT
- £480,000 including VAT
CPV classifications
- 45300000 - Building installation work
Same for all lots
Contract locations and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 2. Renewable Technologies
Description
Design, Supply and Installation of Heat Pump systems and associated components covers the installation of all goods and materials and associated components in relation to the Installation of Heat Pump systems. Design, Supply and Installation of Solar and associated components covers the installation of all goods and materials and associated components in relation to the installation of Solar PV and ST systems, including battery storage.
Lot value (estimated)
- £9,600,000 excluding VAT
- £11,520,000 including VAT
CPV classifications
- 45200000 - Works for complete or part construction and civil engineering work
Same for all lots
Contract locations and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 3. Fabric Works
Description
Design, Supply and Installation of Windows and doors and associated components covers the installation of all goods and materials and associated components in relation to the Installation of windows and doors.
Design, Supply and Installation of Ventilation and Extraction and associated components covers the installation of all goods and materials and associated components in relation to the Installation Ventilation and Extraction systems.
Design, Supply and Installation of Insulation and associated components provides for the supply of all goods and materials and associated components in relation to the design, supply and installation of all insulation measures.
Design, Supply and Installation of Controls and Monitors, Low Energy Lighting and Electric Heaters and associated components covers the installation of Controls and Monitors, Low Energy Lighting, Electric Heaters and all associated materials and components.
Lot value (estimated)
- £5,200,000 excluding VAT
- £6,240,000 including VAT
CPV classifications
- 45210000 - Building construction work
Same for all lots
Contract locations and contract dates are shown in the Scope section, because they are the same for all lots.
Participation
Legal and financial capacity conditions of participation
Lot 1. Consultancy
Lot 2. Renewable Technologies
Lot 3. Fabric Works
see tender documents
Technical ability conditions of participation
Lot 1. Consultancy
Lot 2. Renewable Technologies
Lot 3. Fabric Works
see tender documents
Particular suitability
Lot 1. Consultancy
Lot 2. Renewable Technologies
Lot 3. Fabric Works
Small and medium-sized enterprises (SME)
Submission
Enquiry deadline
15 October 2025, 12:00pm
Submission type
Requests to participate
Deadline for requests to participate
22 October 2025, 12:00pm
Submission address and any special instructions
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Suppliers to be invited to tender
Lot 1. Consultancy
5 to 7 suppliers
Selection criteria:
see conditions of participation in the tender documents
Lot 2. Renewable Technologies
5 to 7 suppliers
Selection criteria:
see Participation stage in the tender documents
Lot 3. Fabric Works
5 to 7 suppliers
Selection criteria:
see participation stage in the tender documents
Award decision date (estimated)
13 January 2026
Award criteria
| Name | Description | Type | Weighting |
|---|---|---|---|
| Quality Assessment | An assessment of Customer Services, Works Delivery, Health & safety, Sustainability and Social Value |
Quality | 60.00% |
| Pricing Assessment | Pricing of a basket of Fabric works |
Price | 40.00% |
Other information
Applicable trade agreements
- Government Procurement Agreement (GPA)
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Competitive flexible procedure
Competitive flexible procedure description
The contracting Authority has considered whether the Works could reasonably be supplied under more than one contract and whether such contract could appropriately be awarded by reference to lots in accordance with section 18(1) of the PA 2023. Following this assessment, the Contracting Authority confirms that the Procurement will be structured into three (3) lots as set out below:
a) Lot 1 - Consultancy Services (including Principal Designer)
b) Lot 2 - Renewable Technologies
c) Lot 3 - Fabric Works
This Procurement will be conducted in two (2) stages.
All Suppliers will be assessed by an Assessment Panel of the Contracting Authority's choosing and will comprise of officers from the Contracting Authority, who will assess each of the submissions in line with the specified assessment criteria.
In summary, the requirement is split into two key stages. Stage 1 - is the Invitation to Participate. All suppliers will need to complete Document 5a - Invitation to Participate. Following the evaluation, the Contracting Authority will invite up to 7 Suppliers for each Lot to submit an Invitation to tender, which will be evaluated based on Quality 60% and Price 40%.
At this stage the Specification is in DRAFT and will be signed off at the Invitation to Tender stage (2)
All information on the process can be found within Document 1 - Information and Instructions. All tender information can be found by registering on My Tenders. https://mytenders.co.uk
Documents
Associated tender documents
https://mytenders.co.uk/
All tender documentation can be found on MyTenders
Documents to be provided after the tender notice
All documentation will be available through My Tenders. https://www.mytenders.co.uk/
Contracting authority
Two Rivers Housing
- Public Procurement Organisation Number: PYMZ-8576-DHBJ
Rivers Meet
Newent
GL18 1DS
United Kingdom
Contact name: Gary Stephens
Telephone: +447484130029
Email: gary.stephens@gbsprocure.com
Website: https://www.tworivershousing.org.uk/
Region: UKK13 - Gloucestershire
Organisation type: Public authority - sub-central government