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Heritage status

Check whether a UK property is a listed building or sits inside a conservation area — both of which materially restrict what alterations are allowed without planning permission. Data is sourced from Historic England and local authority planning records. Required scope: planning:read Cost: 1 request per call Available on: Starter, Professional, Business

Get heritage status for a property

Request

Response

Heritage aggregates by area

Returns counts of listed buildings and conservation properties in an outcode plus a small sample of each. Useful for due diligence on heritage-heavy areas where extension permissions are tightly restricted.

Request

Response

Why this matters

For investors, this affects:
  • Refurb scope — UPVC windows, render, extensions can be blocked
  • Build cost — Specialist contractors + consents add 30–60% to refurb budgets
  • Resale value — Premium for “tasteful restoration”, penalty for unsympathetic works
  • HMO conversion — Often blocked or heavily restricted

Coverage

We have heritage flags pre-computed on 5,193 listed building records and 14,771 conservation area records across our 2.1M+ live property dataset. Coverage is best in England (where Historic England data is most complete) and growing in Scotland (Historic Environment Scotland) and Wales (Cadw).

Use cases

  • Pre-offer due diligence — Don’t waste solicitor time on listed properties you can’t afford to refurb to spec
  • HMO sourcing — Filter out conservation areas where HMO conversion is blocked
  • Refurb cost modelling — Add a 30–60% premium to estimates when listed
  • Insurance underwriting — Listed buildings need specialist policies
  • Auction prep — Spot heritage restrictions before bidding
  • Planning/api/v1/planning/{property_id}/heritage-status, /api/v1/planning/{property_id}/article4 for deeper checks
  • Demographics — Area context for heritage-rich districts
  • Properties — Filter live listings by is_listed_building / in_conservation_area