Building Footprints Across Portugal from OpenStreetMap

OpenStreetMap exports provide building footprints across Portugal, including every feature tagged as a building. The Humanitarian OpenStreetMap Team (HOT) maintains this export, which was last updated on 2026-05-14. Completeness varies by region, with urban areas likely being more complete than remote areas.

Use Cases

• Population estimation based on building density and type.
• Damage assessment for disaster response using building footprint data.
• Urban planning and infrastructure analysis based on building locations and types.

Strengths

• Includes every OpenStreetMap feature tagged as a building, from residential homes to hospitals and schools.
• Covers the entire geographic region of Portugal.
• Available in multiple geospatial file formats including GEOPACKAGE, SHP, and JSON.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Completeness varies by region, with remote areas likely being less complete than urban areas.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

OpenStreetMap

Collection Method

Volunteer-contributed mapping via the OpenStreetMap platform.

Freshness

Last updated 2026-05-14 22:53:50.640991; freshness should be verified.

Geography

Portugal