Data.gov.uk is the UK government's open data portal, cataloging datasets published by central government departments, local authorities, and public bodies. It includes a large environment and mapping category covering administrative boundaries, addresses, transport, flood risk, and environmental monitoring.
Most datasets are released under the Open Government Licence, which permits reuse — including commercial use — with attribution. That makes Data.gov.uk a practical first stop for UK geospatial data before turning to specialist providers like Ordnance Survey for higher-precision base mapping.
