London Brownfield Sites with Boundaries and Contextual Overlays

Over 2,000 Brownfield sites across London, equivalent to more than 2% of the land in Greater London. The database, maintained by the Homes and Communities Agency, provides polygon boundaries for sites down to 0.1 hectares and includes overlays for transport, deprivation, and environmental assets. It was last updated on 2026-03-25.

Use Cases

• Identify potential development sites based on brownfield land boundaries.
• Analyze site context by overlaying transport routes and social infrastructure data.
• Assess development suitability by integrating data on heritage and natural environment assets.
• Validate and update municipal land use records against a more detailed regional database.

Strengths

• Contains over 2,000 sites, an increase of over 1,000 from a previous system.
• Includes sites down to 0.1 hectares, providing finer detail than the 0.25ha national threshold.
• Integrates contextual GIS layers for transport, deprivation, and environmental assets.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last updated 2026-03-25 12:03:25.750589; freshness should be verified.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Greater London Authority, Homes and Communities Agency (HCA), National Land Use Database (NLUD).

Collection Method

Validated, checked, and updated from the EP National Land Use Database, with new site additions.

Freshness

2026-03-25

Geography

Greater London, United Kingdom.