However, in Okinawa, which was once under the rule of U.S. forces and has few wooden or steel-framed houses from the beginning due to its climate, the reinforced concrete collective housing is generally called 'apart' as well, and the term 'mansion' is mainly used to refer to the high-rise housings constructed in recent years by the capital of Japan's mainland.
なお、米軍統治の歴史があり、気候の関係上木造や鉄骨造の家屋の少ない沖縄では、鉄筋コンクリート造の集合住宅も一般にアパートと呼ばれており、マンションという用語は主として日本本土の資本により近年建造された高層住宅に対してのみ用いられる。