The ceiling under the front eave has a kakekomi tenjo (ceiling consisting of different planes) structure that takes advantage of the gradient, with kesho-nokiura (rear eave with exposed balks and roofboards) style surface, on the center of which a tsukiage mado (top-hinged swinging window) is provided.
前庇下の室内は勾配そのままに化粧軒裏の掛け込み天井になっていて中央には突き上げ窓が穿たれている。