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Property Ownership Data API UK

Complete property ownership data in a single API call. Pass a UPRN to get tenure type, registered proprietor, lease term, years remaining, ground rent, and Companies House match — all sourced from Land Registry title records. Used by conveyancers, mortgage lenders, property sourcing tools, and PropTech platforms building due diligence and portfolio intelligence workflows.

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What's in the API

Tenure type

Freehold or leasehold determination from Land Registry — with share-of-freehold flags

Registered proprietor

Owner name as registered at HMLR — individual or corporate

Lease term & years remaining

Original term and calculated years remaining — flag sub-80 year leases

Ground rent

Annual ground rent and doubling clause flags under Leasehold Reform Act scrutiny

Corporate ownership

Companies House match for corporate title holders — company number, status, SIC

HMO licence status

Mandatory, additional, or selective HMO licence with expiry date

One call, full ownership picture

Ownership due diligence typically requires separate Land Registry, Companies House, and council queries. The Homedata ownership API consolidates all three into a single call — saving development time and reducing the number of integration points.

UPRN-keyed — join to any other Homedata dataset
Tenure type, proprietor, and lease data in one response
Corporate ownership matched to Companies House in real time
HMO licence status from council registers
Sub-80 year lease flag for mortgage eligibility screening

Quick start

curl -H "Authorization: Bearer YOUR_KEY" \
  "https://api.homedata.co.uk/api/ownership/100023336956/"

{
  "uprn": "100023336956",
  "tenure": "Leasehold",
  "proprietor": "MISS SARAH J PATEL",
  "title_number": "AV123456",
  "lease_term_years": 125,
  "years_remaining": 98,
  "ground_rent_pa": 150,
  "doubling_clause": true,
  "corporate_owner": false,
  "hmo_licensed": false
}

Pricing

Free

£0

100 calls/mo

Starter

£49

2,000 calls/mo

Growth

£149

10,000 calls/mo

Pro

£349

50,000 calls/mo

See full pricing →

FAQ

Can I identify landlord portfolios?

Yes — pass a proprietor name or company number to retrieve all properties registered to that owner. Growth and Pro plans support portfolio-scale queries.

How does Companies House matching work?

We match the Land Registry proprietor name against Companies House registrations using fuzzy name matching and company number cross-referencing. Match confidence is included in the response.

What if the property is unregistered?

Unregistered properties return a partial response indicating no Land Registry title found. The API does not return guessed ownership for unregistered properties.