Condominium
This refers not to the duplex/quadruplex housing developments in countries with large tracts of land, but to privately-developed luxury (at least compared to government flats) apartments. Due to the limited land in Singapore, freestanding houses are very rare and generally available only to those of high social and economic standing. As such, the condominium is the most luxurious housing for "normal" people. This has generated a trend however, since government-subsidised flats are only available to citizens and permanent residents, that a large minority of owners of condominiums are non-permanent residents.
Read more about this topic: 5 C's Of Singapore