I prefer to live in an apartment because it is self contained 
Yes, that is true I like self contained apartments too
Depending on where you stay they can call an apartment a  flat complex, a tower-block, a high rise that is if there are alot of units in it
I presently stay in a 3 bedroom flat but I lived in a self contained apartment before moving here
I stay in Scotland we call it flats 
We call apartment in high rise condos in Canada and the U.S
Yes Americans prefer to call it apartment 
But condo apartments in are expensive in the cities because you can only find them in the cities