Is the Property Listed? Grade I, II* or II — Check via API
Find Grade I, II*, and II listed buildings near any UK postcode. Data from Historic England's National Heritage List for England (NHLE) — ~400,000 listed buildings with full listing details, grades, dates, and distance sorting. PostGIS-powered radius search.
Available from Starter — £49/month. 2,000 requests included.
Heritage data for every property
Pass a postcode and optional radius to get nearby listed buildings sorted by distance. Filter by grade. Each result includes full listing details and a direct link to the Historic England entry.
I
Grade I
~2% of all listings — buildings of exceptional interest
II*
Grade II*
~6% — particularly important buildings of more than special interest
II
Grade II
~92% — buildings of special interest, warranting every effort to preserve
curl "https://api.homedata.co.uk/api/listed-buildings/?postcode=BA11QE&radius_km=0.5" \
-H "Authorization: Api-Key YOUR_KEY"{
"postcode": "BA1 1QE",
"radius_km": 0.5,
"total": 47,
"grade_counts": { "I": 3, "II*": 8, "II": 36 },
"results": [
{
"list_entry": 1396142,
"name": "The Royal Crescent",
"grade": "I",
"address": "1-30, Royal Crescent, Bath",
"district": "Bath and North East Somerset",
"date_listed": "1950-03-14",
"hyperlink": "https://historicengland.org.uk/listing/the-list/list-entry/1396142",
"distance_km": 0.112
},
{
"list_entry": 1395927,
"name": "The Circus",
"grade": "I",
"address": "1-33, The Circus, Bath",
"distance_km": 0.234
}
]
}Query parameters
| Parameter | Required | Default | Description |
|---|---|---|---|
| postcode | Yes | — | UK postcode (e.g. BA11QE) |
| radius_km | No | 1.0 | Search radius in km (max: 5.0) |
| grade | No | all | Filter: I II* II |
| limit | No | 50 | Results per request (max: 100) |
Heritage constraints at your fingertips
Conveyancing
Flag listed buildings within 50 m of a property. Critical for planning constraints — listed building consent required for any alterations.
Property reports
Enrich property reports with nearby heritage assets. Grade counts, distances, and listing dates — all automated.
Planning risk
Proximity to Grade I buildings affects planning decisions. Quantify heritage sensitivity for development feasibility studies.
400,000 listed buildings. One API call.
Historic England's full National Heritage List — grades, dates, addresses, links. PostGIS-powered radius search.