Design-stage and as-built SAP calculations for new homes, conversions and extensions in Bristol, assessed against the English Approved Document L. We are based in Cardiff, around 50 minutes from Bristol across the Severn. SAP calculations are produced from your drawings and specification, so most of the work is done remotely, and we agree any completion visits in the quote.

Bristol is in England, so projects are assessed against the English Approved Document L, not the Welsh one. The Future Homes Standard takes effect on 24 March 2027, with transitional arrangements for projects already submitted and started by set dates. We'll confirm which standard applies to your project.
Planning conditions in Bristol can include energy or sustainability requirements for new homes. If your decision notice mentions energy, carbon or renewables, send it with your drawings and we'll tell you whether the SAP outputs can help evidence it.
From your drawings we produce the design-stage SAP and Predicted Energy Assessment for Building Control, and flag anything that won't pass.
Let us know about any specification changes and we'll check them before they're installed.
We update the calculation with the as-built details and air test result, then lodge the On-Construction EPC.
Full details of every SAP service are on our main SAP calculations page.
No. We are based in Cardiff and work on Bristol projects from drawings and specifications, which is how SAP calculations are normally produced. Completion visits can be arranged where needed.
The method is the same, but the targets are different. Bristol projects are assessed against the English Approved Document L, so we check them against the English requirements.
It takes effect in England on 24 March 2027, with transitional arrangements based on when the project was submitted and when work started. Tell us your dates and we'll confirm which standard your project is assessed against.
Send your drawings and a short description of your Bristol project and we'll confirm the price, the timescale and exactly what you need.
Prefer to write it down? Use our online SAP quote form and we'll reply by email.