Apartment
The main differences between a free-standing house, intended for one family, and an apartment are that apartments are more anonymous and collective, and that in an apartment, you are usually high up (cf.). In a house or cottage, you are typically very familiar with all the rooms and know what is happening in them; in an apartment, you are somewhat isolated in relation to the building as a whole. Nn apartment in a high-rise building almost always symbolizes a complex.