専せん有ゆう面めん積せき

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.

• この物ぶっ件けんの専せん有ゆう面めん積せきは70平へい方ほうメートルです。