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The freely downloadable dataset created by Google AI for Social Good contains 516M building detections (which can be entire buildings, parts of buildings and sometimes artefacts), across an area of 19.4M km2 (64% of the African continent).
For each building detection in this dataset the polygon describing its footprint on the ground, a confidence score indicating how sure we are that this is a building, and a Plus Code corresponding to the centre of the building is included. There is no information about the type of building, its street address, or any details other than its geometry.