noun
prefab; prefabricated house
Refers to a house built from prefabricated components, often associated with quick construction and lower cost.
この地域には簡易住宅がたくさん建てられている。
Many prefabricated houses are being built in this area.
簡易住宅は工期が短くて済む。
Prefab houses can be built in a short period.
Compound of 簡易 (simple, easy) and 住宅 (house, dwelling). The term likely emerged in the post-war period with the rise of prefabricated housing technology.