Collocations for apartment - noun

large, spacious
cramped, small, tiny
cozy (AmE)
comfortable, luxury
dingy, shabby
Colin lives in a dingy one-room apartment with his pet turtles.

modern
one-bedroom, two-bedroom, etc., one-bedroomed, two-bedroomed, etc. (BrE)
studio
first-floor, second-floor, etc.
downstairs, upstairs
the people who live in the upstairs apartment

basement, loft, penthouse
high-rise
Larger cities have many high-rise apartments.

rental (AmE), rented
empty
holiday, self-catering (both BrE)

buy
lease, rent, sublet
We will be renting the apartment for a year.

live in, share, stay in
I share an apartment with two friends.

look for
I'm looking for an apartment on the east side of the city.

find
move into, move out of
clean, decorate, furnish, renovate

block (BrE), building (AmE), complex, house (AmE)
high-rise apartment buildings

living
dweller
Apartment dwellers can participate in community gardens.

private, royal, state
the private apartments of the imperial family