Sierra Leone Building Footprints from OpenStreetMap

Sierra Leone building footprints exported from OpenStreetMap, including residential, hospital, school, and place of worship features. The data is created by volunteer mappers and maintained by the Humanitarian OpenStreetMap Team (HOT), with a last update recorded on 2026-05-14. Completeness varies by region, with urban areas typically better mapped 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 development analysis.
• Cross-referencing local field knowledge for validation of mapped features.

Strengths

• Includes multiple building types (residential, hospitals, schools, places of worship).
• Available in multiple geospatial file formats (GEOPACKAGE, SHP, JSON).
• Sourced from a free, collaborative global mapping project (OpenStreetMap).

Limitations

• Completeness varies by region; remote areas may be incomplete.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

OpenStreetMap

Collection Method

Volunteer-contributed mapping, exported by the Humanitarian OpenStreetMap Team (HOT).

Freshness

Last updated 2026-05-14 23:48:08.900673; freshness should be verified.

Geography

Sierra Leone