Site appraisal · England & Wales

Know what your house types will achieve — before you bid for the land.

Drop a pin, set a radius. Threshold returns the sold evidence, a ground-pricing grid of achievable £/sqft, a prediction per house type with honest confidence, and the maximum land bid that stacks up.

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Built on 4.6 million sold records — HM Land Registry, EPC Register, ONS & UK HPI open data. No scraped portal data.

480+ hrs
saved on average per month in price research & projections, for a 10-person development team
60 sec
from pin to full appraisal, prediction & land bid
4.6M
sold records, England & Wales, indexed to today
94%
of sales matched to verified floor areas

One search. The whole appraisal.

Everything a developer needs to judge a site, from a single pin — grounded entirely in official open data, indexed to today's market.

01
Sold comparables
Every matched sale in your radius: type, beds, floor area, £/sqft, new-build or resale, tenure and date. Filterable in one table.
02
Ground-pricing grid
A price-per-sqft grid over the land itself — zoom in and every cell shows its figure. See the premium pockets before anyone else does.
03
Prediction per house type
Weighted by proximity, recency and size, HPI-indexed, with a locally calibrated new-build premium. Always a range with a confidence score — never false precision.
04
Residual land appraisal
Your GDV flows straight from the prediction. Add costs and target profit; get the maximum land bid with sensitivity.
05
Sales-rate evidence
Units per month achieved at real new-build sites nearby — the absorption evidence lenders ask for.
06
Lender-ready export
One click turns the appraisal into a PDF you can put in front of partners and funders, disclaimers included.

Put your next site through it.

Threshold is in private beta with new-build developers now. Get access, or ask us to run your site through it first.

Purchase access today