condominium
we call them a "block of flats" and it is not considered chique unless it was converted from an Victorian industrial complex.
don't like either term but apartment is not that much better.
I live in a semi - and also live in the next-door neighbour's door slamming noises. When the vibrations come through the floor you know there is something he has not sorted-out from his childhood.
What's in a name - like childish?