Exactly - the century-old buildings is where people want to live, because on the inside they're modernized and on the outside it's great architecture. Here's a couple of street views from Islands Brygge, the neighborhood cphhell mentioned:

http://maps.google.com/maps?q=islands+brygge&ie=UTF8&...

http://maps.google.com/maps?q=islands+brygge&ll=55.66727...