noun
exclusive area; private floor space
In Japanese apartment listings, this refers to the interior area that belongs exclusively to the unit, excluding shared areas like hallways and staircases. It is a key figure for comparing properties.
この物件の専有面積は70平方メートルです。
The exclusive area of this property is 70 square meters.
専有面積が広い
I'm looking for a room with a large private floor space.