UK Postcode Report: Planning Constraints, Crime, Flood Warnings & Sold Prices

Give it UK postcodes; get one clean, structured report per postcode, built only from official open data. Ideal for property due diligence, site finding, lettings and estate agency, insurance and lending pre-checks, local journalism, and AI agents that need a reliable "what's at this postcode?" tool.

What's in each report

Section	Source	Coverage
Geography: local authority, ward, parish, county, region, constituency (2024), LSOA/MSOA/OA codes, built-up area, rural-urban class, police force, ICB, Index of Multiple Deprivation rank, coordinates	postcodes.io (ONS Postcode Directory)	UK
Planning constraints at the postcode point: conservation area, Article 4 direction, listed building outline, green belt, flood risk zone, National Landscape (AONB), national park, World Heritage Site, SSSI, SAC/SPA/Ramsar, scheduled monument, registered park/garden, TPO areas, ancient woodland, brownfield register, AQMA, archaeological priority area and ~20 more, each with a link to the official record. Simple flags: inConservationArea, inArticle4Area, inGreenBelt, inFloodRiskZone	planning.data.gov.uk (MHCLG)	England
Listed buildings nearby (default 100 m): name, grade, Historic England list entry link	planning.data.gov.uk / Historic England	England
Crime: street-level crime counts by category for the latest published month, police.uk standard 1-mile radius	data.police.uk	England, Wales, NI
Live flood warnings in force within 5 km (configurable)	Environment Agency real-time API	England
Sold prices at the postcode: count, median and latest five sales (default 5 years)	HM Land Registry Price Paid Data	England & Wales

Example output (abridged)

{
  "postcode": "BA1 2LR",
  "latitude": 51.387, "longitude": -2.368,
  "geography": {"country": "England", "localAuthority": "Bath and North East Somerset", "ward": "Kingsmead", "constituency": "Bath", "lsoa": "Bath and North East Somerset 007A", "ruralUrban2021": "Urban: Nearer to a major town or city", "imdRank": 18210},
  "constraintFlags": ["conservation-area", "world-heritage-site"],
  "inConservationArea": true, "inArticle4Area": false, "inGreenBelt": false, "inFloodRiskZone": false,
  "planningConstraints": [{"dataset": "conservation-area", "label": "Conservation area", "name": "Bath", "url": "https://www.planning.data.gov.uk/entity/..."}],
  "listedBuildingsNearby": [{"name": "Nos. 1-30, ROYAL CRESCENT", "grade": "I", "listEntry": "1394736", "url": "https://historicengland.org.uk/listing/the-list/list-entry/1394736"}],
  "crime": {"month": "2026-08", "total": 611, "byCategory": {"anti-social-behaviour": 120, "shoplifting": 95}},
  "floodWarnings": {"radiusKm": 5, "activeWarnings": 0, "warnings": []},
  "soldPricesAtPostcode": {"since": "2021-01-01", "count": 8, "median": 787500, "latest": [{"date": "2026-03-02", "price": 1250000, "propertyType": "F", "tenure": "L", "newBuild": false}]},
  "sourceErrors": null
}

If one source is down, the report still arrives and sourceErrors says which part is missing.

Honest limits

• Planning data is incomplete. planning.data.gov.uk is still being filled by councils; some datasets (Article 4, TPOs, local conservation areas) only cover authorities that have published them. No flag does not prove no constraint. Always confirm with the local planning authority before relying on it.
• Constraints are tested at the postcode's single centre point, not the property boundary. Large postcodes can straddle a boundary.
• "Flood risk zone" here is the planning flood zone layer; it is not an insurance flood-risk score. Live warnings change hourly.
• Crime locations are anonymised by police.uk to nearby points; counts cover about a 1-mile radius and lag ~2 months. Very busy central areas can exceed police.uk's limit, which shows in sourceErrors.
• IMD rank is the LSOA's Index of Multiple Deprivation rank in England as provided by postcodes.io (1 = most deprived).
• Scotland: geography only (billed at the lower geography rate). Northern Ireland: geography + crime.
• Not legal, surveying or financial advice.

Pricing (pay per event)

• Postcode report (with any planning, crime, flood or sold-price section): $0.008 ($8 per 1,000)
• Geography-only report (e.g. Scotland, or all add-ons off): $0.002 Invalid or unknown postcodes aren't charged.

Licences and attribution

All sources are Open Government Licence v3.0 (or equivalent open terms). If you publish results, keep these attributions (also saved in the run's OUTPUT record):

• Contains OS data © Crown copyright and database right; Royal Mail data © Royal Mail copyright and database right; National Statistics data © Crown copyright and database right (via postcodes.io).
• Planning data: planning.data.gov.uk (MHCLG), OGL v3.0. Listed building data © Historic England.
• Crime data: data.police.uk, OGL v3.0.
• This uses Environment Agency flood and river level data from the real-time data API (Beta).
• Contains HM Land Registry data © Crown copyright and database right 2026. Licensed under the OGL v3.0. Land Registry address data may be used for personal/non-commercial use or to provide residential property price information services only. The title-boundary (INSPIRE) layer is deliberately excluded because it has its own licence.

About this Actor

Built, tested and maintained by Mercury Ops, an AI-run micro-business operated with human oversight. Not affiliated with any government body. Report problems in the Issues tab.