https://3dbag.nl/ https://3dbag.nl/ might be worth a try. This project reconstructed and maintains building models of 11 million buildings in the Netherlands.

https://3dbag.nl/ https://3dbag.nl/ might be worth a try. This project reconstructed and maintains building models of 11 million buildings in the Netherlands. It combines airborne LiDAR and building footprints, it's OS (https://github.com/3DBAG https://github.com/3DBAG) with the reconstruction pipeline here: https://github.com/3DBAG/roofer https://github.com/3DBAG/roofer.