In North American English
- condo (condominium apartment): the multi-rise or high-rise residential building where you own the residential unit / suite and the land is owned collectively. If you want to rent a unit in condo, you usually dealing with a private landlord.
- apartment: where you can only rent (not buy) the unit / suite in the residential building. If you want to rent a unit in apartment, you usually dealing with management / leasing office.
[Technically, condominium is not limited to apartment, but also in townhouses (British English terraced houses). In daily dialogue, condo refers condominium apartment, and apartment refer non-condo apartment. We neglect US co-op / cooperate apartment in this question.]
A: Where do you live?
B: I live in a condo.
A: I see. I live in an apartment.
Do British people distinguish condo and apartment in daily dialogue? If so, what are the terms? Does flat mean [condo and apartment] or [apartment only]?