Kanji 坪 two-mat area, approx. thirty-six sq ft Related words 建たて 坪つぼ 建坪 refers to the building footprint area (ground floor area), while 延べ坪 is the total floor area of all floors combined.
坪つぼ 坪 is a unit of area (about 3.3 m²); 延べ坪 uses this unit to express total floor space.
Written forms 延の べ 坪つぼ Usage 50%
Standard spelling for total floor area in architectural and real estate contexts.
延のべ 坪つぼ Usage 50%
Abbreviated form; common in technical documents and regulations.
Etymology 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.
Report an issue with this page
Copyright © 2026 Kotomora. All Rights Reserved.
