10坪 = 33.1 m² (356 sq ft · 10.0 坪)
From a Japanese listing
Tatami size varies by region — the same “6畳” can differ by 15%+. Listings legally must also show ㎡.
10坪
🏠 A 1LDK — comfortable for one, snug for a couple.
㎡ is the legal size. 畳/坪 are traditional — always cross-check the ㎡ figure.