Will my new build pass SAP?
Four questions about your new build. An instant traffic-light verdict on your Part L pass risk — and a full plot-by-plot breakdown of what to fix before it costs you.
Built by accredited On-Construction SAP assessors · Elmhurst
Question 1 of 4
Your verdict ·
Get your full report
The summary above is the headline. Your full report breaks down all four risk areas, what each one means for your DER/TER, and exactly what to fix first.
SAP Pass-Risk Report
UK Building Compliance
Your four risk areas
Recommended next steps
Whatever your verdict, the first move is the same — get your design-stage SAP started.
Get my SAP quotePlease note: This report gives an indicative view based on four high-level questions and the typical behaviour of dwellings under Part L 2021 (England). It is not a SAP calculation and not formal compliance advice — a design-stage SAP assessment by an accredited On-Construction assessor is the only way to confirm compliance for a specific plot.
Want certainty instead of an estimate?
A design-stage SAP from our accredited assessors confirms compliance plot-by-plot — usually within days.
Why this matters
A failed SAP found late is the
expensive kind
Caught at design stage
A spec tweak on paper — better insulation here, a slightly larger PV array there. Cost: usually marginal.
Caught mid-build
Fabric is locked in, so the fix moves to services and renewables — fewer options, bigger numbers.
Caught at completion
No EPC, no sign-off, no completion certificate — and plots you can't legally sell until it's resolved.