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).
The total floor area of this building is 200 tsubo.
Please explain the difference between total floor area and building footprint area.
Standard spelling for total floor area in architectural and real estate contexts.
Abbreviated form; common in technical documents and regulations.
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.