This is very nice. In Denmark we have a country-wide database of buildings with physical data about them (number of floors, square meters, number of units, etc.

This is very nice. In Denmark we have a country-wide database of buildings with physical data about them (number of floors, square meters, number of units, etc.), and it's gratis-queryable at a small scale through a web interface [1], but to get the data in bulk you have to license it for a lot of money. Would be nice to see it going in the open-data direction. [1] https://www.ois.dk/ https://www.ois.dk/