This is exactly what I want to know. There's several towns in the UK that have all the houses in really good 3D (mostly the coastal towns) - I struggle to believe that there's a team of humans making these...
I'm not sure that's it's only LIDAR data. There are e.g. some cranes and scaffolding that also are 3D modeled. I assume it's some magical machine learning pipeline that accumulates the aerial and street view imagery, LIDAR where available, and generates a 3D model.
