noun
total floor area; gross floor area
Technical real estate and architectural term for the sum of floor areas across all stories of a building. Often contrasted with 建坪 (building footprint area).
この建物の延べ坪は200坪です。
The total floor area of this building is 200 tsubo.
延べ坪と建坪の違いを説明してください
Please explain the difference between total floor area and building footprint area.
Compound of 延べ (nobe, 'total, extended') + 坪 (tsubo, 'tsubo', a unit of area). The term is used in Japanese building standards and real estate to denote gross floor area.