OS NGD (National Geographic Database) API

OS NGD (National Geographic Database) API (Ordnance Survey). Access: OGC API Features (key). Formats: GeoJSON. Resolution: vector. Coverage: GB. Pricing/licence: premium / PSGA free for public sector.

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What's in it

Data offered docs-verified: OS Boundaries (administrative and electoral, England, Wales, Scotland) · OS Building Features (heights, lines, access points) · OS Land Features (land cover) · OS Land Use Features · OS Named Features · OS Routing and Asset Management Information (routable network with hazards, restrictions, speed limits) · OS Structure Features (dams, bridges, chimneys and other non-building structures) · OS Transport Features · OS Transport Network · OS Water Features (watercourses, lakes, drains, springs) · OS Water Network (3D structured link and node network of watercourses) · OS GB Address (includes UPRNs) · OS GB Postcodes · OS NI Postcodes · OS Functional Areas (retail locations) · OS Islands Address
Coverage docs-verified: Great Britain
Resolution llm-inferred: vector
Update frequency docs-verified: daily
Formats llm-inferred: GeoJSON
Access docs-verified: Licensed, not free for general use. Available via the OS Data Hub under the Public Sector Plan (PSGA members and OS Partners) or the Premium Plan, using the existing pricing and licensing frameworks. API key required (per entry metadata; the entry's auth field is null).

Useful for

Use cases llm-inferred: FRA baseline catchment context: watercourses, lakes and drains from OS Water Features and Water Network · Drainage strategy support: locating culverts, bridges and other structures from OS Structure Features · Site investigation access and routing assessment using OS Routing and Asset Management Information · Address and postcode geocoding of site or client locations using OS GB Address and OS GB Postcodes
Audience llm-inferred: flood consultants · drainage engineers · hydrologists · civils engineers · planners · GIS analysts

Limitations

Constraints llm-inferred: Requires an OS Data Hub plan (Public Sector or Premium); the docs do not state that the data is free, so the entry's 'PSGA free' wording is not supported by the docs · Vector data only; no elevation or raster products are covered by this entry · Auth is listed as null in the entry, but the docs indicate access through the OS Data Hub · Water collections describe network and feature geometry, not gauge, rainfall or flow time series · Collection-level coverage varies (for example, NI and Channel Islands appear only in specific collections)

Licence: premium / PSGA free for public sector
Authentication: Unknown — review source docs
GitHub stars: Unknown
Last commit: Unknown
Last successful page check: 16/10/2026
Page health: page reachable
Package: Not recorded
Verification: Not independently verified

Provenance & evidence

Verified 2026-10-16 (curl HTTP 200).

Metadata observed 14/10/2026 · research sweep: sweep-2026-10-16 (named: UK)

https://www.ordnancesurvey.co.uk/products/os-ngd