This is common in Amsterdam too. I have a friend in this situation and she has had to move 10 times in 7 years. The rent is damn cheap though; something like 150 EUR/month.
Exactly! I've had friends living in school buildings(huge!) empty post offices, bank buildings, even a church!
The guy in the church stayed there for about 4 years...
Churches, schools. Yes. some offices? maybe. Yet its not allowed for the big empty office buildings, since they do not provide all the sanitary needs, and are usually cut off from power and electricity altogether. Also wondering how much guardians will be needed in the future now that squatting is punishable and has been upped to up to 2 years in jail.
That still only applies to homes; it needs to be extended to commercial premises first.