Land Registry
Does the Land Registry have an API?
HM Land Registry publishes several open datasets but does not run a single REST API for live title data. The bulk feeds — Price Paid Data, the UK House Price Index, the National Polygon Service, the INSPIRE Index Polygons, the Overseas Companies Register and the UK Companies dataset — are released as monthly CSV or shapefile downloads.
Title registers and title plans (the documents showing ownership, charges and lease terms) are sold per-title through the Find a Property service or, for high-volume conveyancers, the Business Gateway. There is no public real-time API for titles.
To use Land Registry data programmatically, either ingest the open downloads yourself or query a third-party API such as Homedata, which keys Price Paid records to UPRN and joins them to EPC, ownership and risk data.
What this means in practice
The Price Paid Data download is a single CSV running to roughly 1.4GB containing every England and Wales transaction since 1995 — about 28 million rows. The file refreshes on the 20th of each month with the prior month's transactions, so a sale that completed on 15 March appears in the 20 April release, six weeks later. There is no real-time path. Polygons add another 12GB through INSPIRE Index Polygons (free) or the National Polygon Service (paid, more accurate). Loading both into PostGIS for a single property lookup takes hours; running it as a hosted API is what most product teams now do.
Related questions
Can I get title register documents through an API?
Yes — the Business Gateway accepts XML API requests for title registers, title plans and Official Copies. It is restricted to organisations with a Business Gateway account (typically conveyancers and search providers), which requires registration and a credit account with HM Land Registry. Each title register costs £3, each title plan £3, and pricing is the same per-document as the public Find a Property service. There is no free or trial tier.
Does Price Paid Data include all sales?
No. It excludes sales below market value (gifts, transfers between connected parties), commercial transactions, transfers under a power of sale (some repossessions), Right to Buy at non-market discounts, and certain leases under seven years. About 4–5% of transactions are excluded for these reasons. The omitted set includes a high proportion of probate transfers and family transactions, which is why probate and discounted-sale comparables need separate sources.
Related reading
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