Identity before inference
No official-data match is attached until the address, coordinate or UPRN is sufficiently resolved.
The Aveno method
Independent.
Not antagonistic.
Aveno separates what a publisher says, what an official source supports, what the model estimates, and what remains unknown. Better evidence can change the conclusion.
Dimensions, not a brutal total
Architecture, market position, ownership intensity, constraints and evidence coverage remain visible separately.
Constructive language
We explain the premium, question or missing evidence. We do not score an agent’s competence or manufacture controversy.
No paid score
Agents can correct facts and provide evidence. Commercial relationships can never purchase a higher assessment.
How judgment is expressed
Honest enough to matter.
Calm enough to use.
“The asking price carries a material premium over the available evidence. Architectural significance may justify part of it; stronger matched sales would be needed to support it fully.”
Public language evaluates the evidence and the buyer decision—not the dignity or professionalism of the selling agency.
Source architecture
Official where possible.
Explicit where not.
Every connection has a date, source and evidence state. A blank is not silently converted into a zero.
Transactions
HM Land Registry Price Paid Data
Monthly sales evidence; exact matching and design relevance still matter.
Official source ↗EnergyEPC data service
Bulk data and developer API; certificate matching needs an address or UPRN.
Official source ↗PlanningPlanning Data API
More than 100 datasets, queryable by coordinate or UPRN; coverage can be incomplete.
Official source ↗HeritageHistoric England Open Data
The official National Heritage List and spatial downloads/APIs.
Official source ↗EnvironmentEnvironment Agency data
Flood layers describe areas and scenarios; they are not a property survey or insurance quote.
Official source ↗ConnectivityOfcom Connected Nations
Address-level APIs are available subject to registration and terms.
Official source ↗A home is published only when its current source is verified, the description is independently written, attribution is clear, media can be embedded or linked lawfully, and uncertainty is visible. If those conditions fail, the pipeline skips the home instead of filling the site with weak content.