SAP calculations

SAP Calculations for Part L compliance

SAP calculations for Residential new builds, change of use, renovations and extensions.

What is a SAP calculation?

A SAP calculation is a desk top assessment to demonstrate compliance with Part L of the Building Regulations. Using your drawings and specification we will calculate the various information required for a Building Control submission.

A SAP is undertaken at design stage before any work starts on site; this proves to Building Control that what has been proposed meets the requirements of Part L.

Once the dwelling is fully complete, we revisit that initial calculation and update it with the final as built confirmations, and consider any changes that may have occurred, to produce the final Building Control submission. It’s as this time we also provide an EPC.

Why do I need an SAP calculation?

Put simply, you need a SAP calculation to obtain Building Control approval, for several reasons:

• A SAP calculation demonstrates compliance with Part L.
• This can be for new build, or an existing building undergoing renovation, a change of use or an extension added.
• A SAP calculation is sometimes required for an Energy or Sustainability Statement in Planning applications.
• Or it could be required for funding, like mortgages.
• And finally, an EPC is produced from the as built SAP calculation.

Why use us?

We’ve got loads of experience. And provided hundreds of SAP calculations, on every type of residential building.

• We’ve worked on everything from a Goldsmith Award winning housing project to a shipping container, including manor houses, every type of house whether detached, semi or terraced, and blocks of flats.
• Traditional Masonry or Timber Frame construction.
• SIP’s, ICF, steel frame, even straw bale and cob.
• Existing houses undergoing changes in a Conservation Area, or Listed Status, we understand the issues.
• We’ve gained experience over years of practice and we know how to get the best for you and your project and guide you through the assessment process to ensure compliance.
• We also offer useful add on services – Thermal Bridging psi value calculations, MCS approved heat loss calculations for sizing of heat pumps, and Part O overheating assessments.
• Perhaps most importantly, friendly support. If your project is struggling to pass, we’ll work with you, our service includes design advice and trying out different scenarios to initial calculations to find a way to pass.
• Competitive and Fair Pricing – No hidden fees, just transparent upfront costs.