[Tangokat]

In Copenhagen most apartments require people to live there. "Bopælspligt", residency requirement. As the owner of an apartment you are required to make sure someone lives there at least 180 days a year.

The best places to live in a city should have people living there. It's really that simple.

[bonzini]

Serious question: what do you do if you simply cannot find anyone who wants to live there? For example if you inherited a flat when the owners died, and you already have a place to live in?

[Tangokat]

In the extreme case the municipality will rent it out for you. This almost never happens. It's really not hard to find people in the city who want to rent apartments.

[pkphilip]

It is actually a pretty smart way to ensure that there is some occupancy in all building blocks (which could reduce crime) and also it brings down the overall rental costs.