For property developers

Find and check the site before three other developers do.

Pull ownership, planning context, GDV comparables and Section 106 benchmarks for any UK site or set of titles in one call. Source faster, and appraise on real evidence.

See what you can do
No credit card · 500 free credits / month
AI assistantPropalt connected
Find commercial-to-resi assembly sites within 500m of a London transit hub, no offshore owners or open planning disputes.
7 off-market assembly sites found and filtered on ownership and planning status. Top candidate:
SITE FINDER● LIVE
Assembly · 500m of hub
London transit corridor
Sites found
7 off-market
Owners
Corporate + nominee
Planning
2 lapsed consents
Est. GDV
£/sqft benchmarked
380+ LPAs · ownership daily
29M
properties you can track
380+
Local Planning Authorities
24h
ownership refresh
168ms
per property call
See it in action
Find and check an off-market site before it lists.
Find and check an off-market site before it lists.
The connector in action

Ask it the way you actually work

Real questions from your desk, answered inside Claude or ChatGPT with the Propalt AI switched on. No dashboards to learn.

ClaudePropalt connected
Map the adjacent titles and owners around this site for assembly.
5 adjacent titles mapped, including one ransom strip and two nominee-owned parcels.
5 titles1 ransom strip2 nominee owners
ChatGPTPropalt connected
Benchmark Section 106 affordable-housing percentages for new-builds in this area.
Comparable schemes here ran 20 to 30% affordable. Context set before you bid.
20 to 30% affordableRegional compsS106 context
Context

The Problem We Solve

Land sourcing is still mostly contacts, rumour and Rightmove. Planning data is spread across more than 380 authorities, and ownership hides behind nominee companies and family estates.

By the time a site is really available, three other developers already know about it. Finding, checking and appraising a site is slow enough that the good ones are gone before your appraisal is done.

What changes with Propalt

Outcomes you can rely on

01 · Site identification

Find sites by ownership pattern, not by listing

Search an area by tenure, ownership type, holding period and property type. Surface long-held plots and corporate-owned assets that have never been marketed.

02 · Ownership

Find out who actually owns it

Ownership traced through to the Companies House entity, with linked corporate holdings. The approach letter goes to a decision maker rather than to an address.

03 · Planning history

Every application on the site, and next door

Full planning application history plus active constraint records. Lapsed consents and refused schemes tell you what the authority will accept before you commission anything.

04 · Constraints

Screen the constraints before the appraisal

Active planning constraints, Coal Authority area and non-coal mining hazard by coordinate. Kill the unviable site in an afternoon rather than after a consultant fee.

05 · GDV evidence

Comparable evidence for the appraisal

Sold prices, achieved values by property type and floor area, local price movement and average time to sold subject to contract. The GDV line gets evidence behind it.

06 · Area demand

Test demand before you commit to a mix

Demographics, household composition, income and school proximity for the area. Decide the unit mix on local data rather than on the last scheme that worked elsewhere.

29M UK properties across 380+ Local Planning Authorities, with ownership refreshed every 24 hours and property calls in about 168ms.
For developers
Prefer the technical detail? Endpoints cover 90%+ of land and acquisitions workloads; full reference at propalt.ai/product/forDeveloper.
get-property-detail, get-properties, audience-landlords, check-coal-area, get-regional-analysis, get-listings

See the site before it lists.

Free tier · 500 credits / month · No credit card.

View full API reference
No credit card required · Free 500 credits/month