建坪 たてつぼ Also written 建て坪 Meanings Noun floor space (esp. of the ground floor only); floorage See also: 坪 (つぼ). See also: 延坪 (のべつぼ). See also: 地坪 (じつぼ). Kanji 建 build. Read as たてる. 坪 tsubo. Read as つぼ. Jinuma: Japanese Dictionary · Word lists