Catch it before the auditor does.

Upload your record of inspection and site notes. Pre Check EPC reads every field, checks it against the RdSAP10 Conventions, and flags what a smoke-test audit would catch — before you lodge.

1 Drop your PDF
2 30-second check
3 Fix, evidence, lodge

Drop your Record of Inspection here

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Example report

Pre-Audit Check: 71 Woodland Road, LE10

Ref 122967 · checked in 28s
Detached house, 1900–1929, solid brick 250mm, two extensions (1900–1929 solid / 2003–2006 cavity). Daikin Altherma heat pump with radiators, regular cylinder 205L. Recorded EPC: 42 (E), potential 69 (C).
🔴 Critical — fix before lodgement 3 found
Flat Roof / Sloping Ceiling Insulation You entered: Unknown

You have put 'Unknown' — provide documentary evidence supporting this, or revert to 'As Built'. 'Unknown' is reserved for exceptional circumstances and wrongly suppresses the insulation recommendation.

Convention 3.03a / 3.03b — "Unknown" insulation type
Window 7 — Width You entered: 14.47 m

A 14.47m-wide window is almost certainly a decimal typo for 1.447m. As entered, it adds ~13m² of phantom glazing and materially distorts the heat loss calculation and the final rating.

Measurement sanity — DIM-01
Is Wall U-Value Known (×3 building parts) You entered: Please Select

Three dropdowns are still on their default. Resolve every field — lodging with software defaults is a data-entry failure an auditor will flag immediately.

Incomplete data entry — DATA-01
🟡 Check — verify against your site notes & photos 2 found
Extension 1 — Roof Insulation You entered: Unknown (no access)

'Unknown' is permitted for a pitched roof with no loft access — only if your site notes explain why access wasn't possible. Confirm that justification is written down.

Convention 3.03b — clarification required in site notes
Central Heating Pump Age You entered: 2012 or earlier

Your main heating is a PCDF entry dated 2015–2025 (Daikin Altherma), but the circulation pump is recorded as pre-2013. Verify and align, or note why the older pump was retained.

Heating consistency — HEAT-01
📷 Evidence pack checklist
  • Wall thickness measurement at reveal (250mm)
  • Loft insulation depth — ruler shot (100mm at joists)
  • Heat pump data plate (ERLQ016CAV3)
  • Cylinder + thermostat, spray foam visible
  • Dual electric meter
  • Open fireplace / chimney
✅ Looks consistent

Open fire in grate reconciles with 1 open chimney. Window count and orientations are plausible for the footprint. Addendum answers match the report body, and the recommended measures align with the recorded construction.

Checked against rules v1.0 · 3 critical, 2 to verify The assessor remains responsible for the lodged assessment

Built on the Conventions

Every finding cites its RdSAP10 Convention or specification reference, so you can check the source yourself.

Rules that keep growing

The checklist is updated as new audit patterns emerge — your next check is always against the latest rules.

By an assessor, for assessors

Built by a practising DEA and trainer. This is the pre-lodgement discipline taught to new assessors, automated.