For UK property-pack providers
Building data your pack can defend.
Measured roof, facade, flood and planning facts for any UK address — each one sourced, dated, and provable. The fields you can't verify today, filled with data you can stand behind, and delivered as PDTF verified claims that drop straight into your pack.
Why this matters now
Upfront material information is now expected on every UK listing, and the government's home-buying reforms point to mandatory, verified property packs — with data provenance at their core. Your packs increasingly need condition, flood and planning data you don't measure yourself: leave a field blank and the pack looks thin; fill it with an unsourced guess and you carry the liability. The packs that win will be the ones that can prove where every fact came from — and give a straight answer where the data doesn't exist yet.
What you get
Structured PDTF claims that merge straight into your pack as data — not a PDF, and no re-keying.
Measured, not guessed
Roof, facade and geometry measured from our own imagery and LiDAR — not seller declarations, not a model's best guess.
A source on every fact
Each fact carries where it came from, how it was measured, and when — so you can defend any field in the pack.
Honest about the gaps
We list what we couldn't verify and why, rather than padding the pack with data that won't hold up.
See it on a real property
A live fragment for a real address: the facts we'll stand behind, and the ones we won't — each with its source, or the reason we withheld it. Toggle between two properties and download the sample to check it against your own records.
- SummaryZone 1 — low probabilityEnvironment Agency Flood Map for Planning
- Yes NoNoStatutory planning designations (Planning.data / Historic England)
- Yes NoNoStatutory planning designations (Planning.data / Historic England)
Omitted (13) — and why
- Current rating, Potential rating, Floor area sqm, Roof description, Walls description, Listed gradewithheld: no evidence on the id-spine
- This property, Annual Generation Kwh, Height m, Eave height m, Compositewithheld: no PDTF schema home yet (WG submission)
- Roof condition, Main Walls conditionwithheld: export licence
Every claim carries source, method, coverage tier & verification-readiness. We show what we don't claim, too.
Why you can trust it
Fail-loud, never fabricated
A fact we can't prove is omitted and logged — never padded. Fewer facts, all defensible.
Licence-clean by construction
No Google-derived measurement can enter a pack. The gate is code, not a promise — so your pack stays clean.
Validated against the standard
Every fragment is checked against the official PDTF schemas before it ships, so it slots into your pack without surprises.
How you get it
1. See it, take the data
View the live fragment above and download the sample fragment JSON. No build, no signup to evaluate.
2. Pilot on your property
Book a pilot and we hand you a live fragment for an address you care about, plus a private key. We onboard you personally — no self-serve signup.
3. Integrate to scale
When you want it continuously, your team calls POST /pack and merges the claims — as an array or a propertyPack subtree.
Who else it's for
Built for pack providers first — the same facts serve two more buyers.
Lenders & surveyors
Provenance-traced fabric signal you can defend in a valuation — with what we don't claim shown, too.
AI agents
The same facts and provenance over MCP, so an agent can cite its source.
Book a pilot
Tell us what you build and we'll hand you a live fragment for a property you care about, plus a private key to try the API.