For self-builders and one-off homes
Self-build package: both calculation stages and your final certificate
For a single self-build or custom build, this package covers everything Part L needs: the design-stage SAP calculation with plain-English advice on the specification, the as-built calculation once the house is finished, and the on-construction EPC. Guide fees are £150 to £300 for a straightforward single plot, confirmed in writing before we start.
Who runs your contract
Awais Sarwar, MSc — Accredited Energy Assessor
Awais is an accredited domestic and commercial energy assessor and the owner of Team EPC Ltd, which trades as Part L Consultant. He has surveyed and lodged EPCs across flats, houses, HMOs, managed portfolios and commercial premises throughout London and the Home Counties, and is currently studying an MSc in philosophy alongside running the business.
Off the clock: cricket, family time, an MSc in philosophy in progress and finding London's best food.
Awais Sarwar
Founder · Accredited energy assessor
What you get
Everything this package covers.
Design-stage SAP calculation
Your house modelled from the drawings and specification, with the compliance route written down before you build.
Specification advice in plain terms
Where the design does not pass, we explain which changes make a difference to the result and which cost money without moving it.
As-built calculation
The model updated to what was actually built and installed, using the air test result and commissioning records.
On-construction EPC
The certificate for the finished home, produced from the as-built calculation.
A named person throughout
The same person handles both stages, so you are not re-explaining your project to someone new at the end.
When it applies
Projects this package is built for.
- A new house you are building for yourself
- A replacement dwelling on an existing plot
- A custom-build plot where you control the specification
- Barn or building conversions creating a new dwelling — see the extension and conversion package if it is not a new dwelling
Not included
What sits outside the fee.
- Air tightness testing itself, which is carried out by an accredited tester
- Planning, structural, drainage or overheating work
- Building control application fees
- Renewable technology design or MCS certification
Guide fee
£150–£300 single plot, guide only
See all guide fee bands for individual services.
Process
How the instruction runs.
Step 1
Send your drawings
Plans, elevations, sections and whatever specification you have so far.
Day one
Step 2
Fixed quote
A written fee and a list of anything else needed.
Usually same day
Step 3
Design-stage calculation
Your compliance route, plus any specification changes needed to pass.
3–5 working days
Step 4
Build
Tell us about substitutions as they happen so nothing surprises us at the end.
Step 5
As-built and EPC
Final calculation and certificate once the test and commissioning records are in.
2–4 working days
Bundled services
The individual services this brings together.
Other packages
Other combined instructions.
Send the project and get a fixed fee.
Guide bands only. Fixed quote in writing before work starts.
