Private beta for UK OCDEAs

Specvo · The building-physics platform

Tools for building physics.

We build practical, deeply-validated tools for the people who make buildings perform — energy assessors, designers and consultants. One job each, done properly. First up: SAP Copilot for OCDEAs.

SAP Copilot

Live

Drawings and spec in — Elmhurst-ready SAP 10.2 XML out. Cuts a six-hour assessment to thirty minutes of review.

Learn more ↓

U-value Calculator

In SAP Copilot

BR 443 / ISO 6946 build-up calculator with an Elmhurst-aligned material library. Free standalone version on the roadmap.

Details →

Build-up Extractor

Coming soon · Free

Paste a specification, get clean wall, roof and floor build-up layers back. Free, no sign-up.

Details →

Tool Nº1 · Live in private beta

Drawings and spec in — Elmhurst-ready SAP XML out.

Cut a six-hour SAP assessment to thirty minutes of review. SAP Copilot reads your planning pack — drawings, specification, U-value calcs — and hands you a draft SAP 10.2 XML ready to import into Elmhurst.

See how it works

specvo.com/projects/grove-rd-plot-4

Projects

Grove Rd plot 4
Grove Rd plot 3
Millfield phase 2
Barn Lane semi

Plot 4, Grove Road

Materials check

Ready to run

Floor area

128.4 m²

Heat loss perimeter

38.2 m

External walls

Build-up matchedWT-A

Wall build-up matched to spec (WT-A)

Using SAP default for party wall (no buildup in spec)

Confirm MVHR unit model with developer

Built on how OCDEAs actually work

SAP assessors lose hours to measuring and chasing developers for missing details. SAP Copilot does both — and hands the file back with every gap flagged.

Reads the planning pack for you

Rooms, walls, openings, U-value build-ups, thermal bridges — picked up from your PDFs and spec without re-keying. You glance, tweak, move on.

Catches gaps before you waste a run

Three-tier intake check flags hard blockers, SAP defaults to confirm, and softer asks — and drafts the email back to the client for each gap.

Imports cleanly into Elmhurst

Output validated against the Elmhurst Design SAP 10 schema across our 50-task reference set. Open in Elmhurst, review, submit.

Four steps, not four afternoons

01
Upload the pack
PDFs, DWG, NBS spec, U-value calcs — drag them in.
02
Materials check
We flag missing details before you waste time running.
03
Review fields
Confidence-scored fields with links back to the source page.
04
Export XML
Drop straight into Elmhurst Design SAP 10.

See it run on a real OCDEA project

Bristol detached bungalow · 59 m² · cavity wall + insulated ceiling. Validated against the official Elmhurst SAP 10 round-trip.

STEP 01

Drop your project files

Floor plans, elevations, spec, U-value calcs. We use Task 5 — a real bungalow in Bristol — as the live tour.

specvo.com · task5-55-st-marks

Drag PDFs, DWGs, spec docs here

or click to browse

Task 5 Ground Floor.pdf· Floor plan

1.4 MB

Task 5 Elevation.pdf· Elevations

0.9 MB

Task 5 Section.pdf· Section

0.6 MB

Task 5 Specification.docx· Spec

0.4 MB

main wall U value.pdf· U-value

0.3 MB

roof U value.pdf· U-value

0.2 MB

Real Task 5 file pack — 55 St Marks, BS10 6TS · Bristol

Validated against 5 real OCDEA assessments

Task 5

Bungalow · Detached

Bristol

Task 6

Bungalow · SemiDetached

Sheffield

Task 7

Flat · SemiDetached

Task 8

House · Detached

Task 9

House · SemiDetached

Ready to shave 60% off your next assessment?

Or talk to us →

SAP 10.3 + FHS 2025 support — Q3 2026.