Scope
Reference
HSE/T4752
Description
The Building Safety Regulator (BSR) is housed within the Health and Safety Executive (HSE) and is responsible for ensuring that buildings across Great Britain are compliant with statutory requirements. In accordance with the Building Regulations 2010, the Secretary of State has approved the National Calculation Methodology (NCM) to calculate the energy performance and asset rating of buildings other than dwellings. The Technical Policy Team (TPT), operating within the BSR, is responsible for maintaining, updating and developing technical guidance associated with Building Regulations including the management of NCM.
HSE is seeking to engage with the market in advance of a planned procurement relating to the National Calculation Methodology (NCM)
The scope of any future procurement may include (but is not limited to):
• NCM Modelling Guide (England)
• NCM Databases
• SBEM code
• SBEM Technical Manual
• iSBEM
• iSBEM user guide
NCM is associated with, but does not currently include, the following functions:
Calculation of Operational Ratings - https://assets.publishing.service.gov.uk/media/5a78b842ed915d07d35b1e49/998942.pdf
EPC Register - https://www.gov.uk/find-energy-certificate
NCM Scotland - https://www.uk-ncm.org.uk/download.jsp?id=38
NCM Wales - https://www.uk-ncm.org.uk/download.jsp?id=39
NCM Northern Ireland - https://www.uk-ncm.org.uk/download.jsp?id=14
NCM States of Jersey - https://www.uk-ncm.org.uk/download.jsp?id=18
Non-Domestic Energy Assessment Procedure (Ireland) - https://www.seai.ie/ber/support-for-ber-assessors/neap#comp0000621c848a0000001d15584f
Third-party software validation - https://assets.publishing.service.gov.uk/media/68f8b1daec6267c615ed8f64/2025-10-15_NCM_approved_software_programs_for_buildings_other_than_dwellings.pdf
The future procurement is intended to be split into the following lots:
Lot 1 Development of the National Calculation Methodology (NCM)
• Maintain and update the NCM to reflect evolving building regulations and energy standards.
• Advise the Building Safety Regulator (BSR) on technical adjustments needed to remain compliant with Part L of the Building Regulations.
Estimated initial duration 36 months - this is likely to be a recurring requirement.
Estimated value for contract duration £239,400 (excluding VAT and admin overhead) - this value is indicative only.
Lot 2 Maintenance of the NCM Compliance System
• Ensure the SBEM calculation engine, iSBEM interface and all associated documentation remains valid, secure, and accessible.
• Ensure integration with external systems such as the EPC register and 3rd party software tools is maintained
• Provide user support and technical guidance
Estimated initial duration 36 months - this is likely to be a recurring requirement.
Estimated value for contract duration £270,000 (excluding VAT and admin overhead) - this value is indicative only.
Lot 3 Digital interface for SBEM
• Replace legacy iSBEM with a user-friendly cloud-based interface
• Support both online and offline use
• Improve accessibility for building designers and users
Estimated Initial Duration: 24 months
Estimated value £380,000 for contract duration (excluding VAT and admin overhead) - this value is indicative only
Total value (estimated)
- £889,400 excluding VAT
- £1,067,280 including VAT
Above the relevant threshold
Contract dates (estimated)
- 1 October 2026 to 30 September 2029
- 3 years
Main procurement category
Services
CPV classifications
- 48100000 - Industry specific software package
- 71000000 - Architectural, construction, engineering and inspection services
- 72500000 - Computer-related services
- 73200000 - Research and development consultancy services
Engagement
Engagement deadline
27 March 2026
Engagement process description
Engagement Events
HSE intends to explore supplier capability, market structure, commercial options, delivery models and innovation opportunities via this preliminary market engagement (PME). We would encourage potential suppliers to take part in online discussions that we will be running through March 2026.
We invite interested suppliers to contact ncm@hse.gov.uk to book a place on these engagement events or to request further information.
Responses to this PME may be used to refine any future procurement but participation in these engagement events will not confer any competitive advantage. We will publish all information provided as part of this engagement after the closing date below.
This preliminary market engagement will close on Friday 27th March 2026
Participation
Particular suitability
Small and medium-sized enterprises (SME)
Contracting authority
Health and Safety Executive
- Public Procurement Organisation Number: PBXM-4389-TXVZ
Redgrave Court, Merton Road, Bootle, Merseyside
Liverpool
L20 7HS
United Kingdom
Email: tenders@hse.gov.uk
Region: UKD73 - Sefton
Organisation type: Public authority - central government