Un immeuble
'un appartement' (masc.) an apartment block, a block of flats: un immeuble
The collective noun is a block of flats.
A block of flats is a residential building consisting of apartments.
"des appartements en ville"
block
block
Block of flats = apartment building or apartment complex.
205km
The collective nouns are:an undulation of hillsa block of flats
jeit estas tonto
yes
Block of flats in the towns, villas, etc.