How to Download 125 Million US Building Footprint Data - Geo.Appsmith

Early this year Microsoft released approximately 125 million building footprint polygon geometries in all 50 US States in GeoJSON format. This dataset containing 125,192,184 computer generated building footprints was the output of a combination of deep learning, computer vision and artificial intelligence work by Microsoft's Bing Maps Team. The team has reportedly been been applying these techniques with the goal to increase the coverage of building footprints available for OpenStreetMap. Before the release there was an estimated 30,567,953 building footprints in the US on OpenStreetMap. The Bing Maps team used Open Source CNTK Unified Toolkit which was developed by Microsoft and applied Deep Neural Networks and the ResNet34 with RefineNet up-sampling layers to detect building footprints from the Bing imagery.