延のべ坪つぼ数すう

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Meanings

1

noun

total floor space; total floor area

Used in real estate and architecture to express the total floor area of a building, measured in tsubo (坪).

prolong, stretching

坪two-mat area, approx. thirty-six sq ft

数number, strength, fate

延のべ床ゆか面めん積せき
延べ床面積 is a more formal and technical term for total floor area, often used in official documents, while 延べ坪数 is more common in everyday real estate contexts when using tsubo units.

Compound of 延べ (nobe, 'total, extended') + 坪数 (tsubosū, 'number of tsubo'). The word is a straightforward combination of its parts.