Modern commercial meeting room with city views, assessed for energy performance
Design & Building Control

SBEM calculations for commercial buildings

Non-domestic buildings show Part L compliance using SBEM, the government's National Calculation Methodology. Offices, retail units, schools, warehouses and mixed-use ground floors all need it for new builds, and many fit-outs and extensions do too.

We model the building fabric, HVAC and lighting with your design team, show where the carbon and primary energy targets are being lost, and agree the most cost-effective route to a compliant BRUKL report.

When you'll need it

  • New non-domestic buildings and extensions
  • Shell and core or Cat A fit-outs with new services
  • Change of use to commercial or mixed use
  • When a non-domestic EPC is needed for sale or letting

What's included

  • Design-stage SBEM model and BRUKL report
  • Option testing of fabric, HVAC and lighting
  • Coordination with the M&E engineer and architect
  • As-built SBEM using commissioning data
  • Non-domestic EPC lodged on completion
  • Building Control submission support

SBEM calculations FAQs

Does a fit-out need SBEM?

If the fit-out installs new fixed building services, such as heating, cooling or lighting, across a significant area, Building Control will usually ask for SBEM. We can confirm quickly from your scope.

What information do you need?

Floor plans, sections and elevations, the fabric specification, and the heating, cooling, ventilation and lighting design. Early drafts are fine; we'll flag gaps.

Can you help if our BRUKL is failing?

Yes. We'll show which parts of the design are costing you the most, and test practical changes such as lighting efficacy, heat recovery or glazing performance.

Get a fixed quote

Need sbem calculations?

Send your drawings, planning reference or Building Control comments and we'll reply with a fixed quote, usually the same day.