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蔵前の小さな家

計画地はいわゆる下町的な細い路地に面し、路地には少なからずコミュニティーが存在している。この住宅では通りから繋がる1階部分を開かれた土間にする事で、路地の延長で近所の交流を促している。2階にDK、3階に個室を設けて段階的にプライバシーを確保しながら、短い梯子状の階段を行き来して、効率よく軽快に暮らせるように計画した。最上部のハイサイドライトから段板の隙間を通り自然光が下階へと降りてくる。同時に柔らかな気流を作り、住戸内の室内温熱環境を一定に整えている。

敷地は間口3.3m奥行9mの細長い形状。用途地域など法規制により小さな住宅であっても一定の規模を越えれば、耐火建築物である事を求められるが、逆に建築面積の制限が無くなる利点を考慮すれば、小さな土地であっても比較的大きな床面積を確保する事が出来る。

耐火性能を持った外壁、構造体。地盤状況より建物本体を軽量化する事。内部空間をなるべく大きく確保するために鉄骨部材や仕上材をとにかくスリムに構成する事。敷地の境界から建物までのクリアランスを最低限に止めるための工法。いくつかの条件から、構造や外壁材はほぼ自動的に決定された。

The small house in Kuramae

The planned place faces the so-called downtown area like a narrow alley. There are quite a few communities in the alley. This house promotes neighboring interchange by the extension of the alley by having the first floor connected to the street with an open dirt floor. We planned a house in which residents would be able to live efficiently moving back and forth on the short ladder-formed casual stairs, while wisely designing the DK on the second floor and a private room on the third floor, which is expected to secure a privacy level. Natural light falls on the lower floor from the high sidelight of the top through the gap of the tread.  We made a gentle air current at the same time and fixed a constant indoor warm temperature environment in the dwelling unit.

The shape of the site is slim with a frontage of 3.3 m and depth of 9 m. Due to laws and regulations, including the restricted zone, the building is required to be fireproof if it surpasses a certain size even if it is a relatively small house. On the contrary, we can secure a relatively large floor space if the restrictions in the building area consider the advantage of not being restricted, even if the land is small.

The outer wall and structural body should be fireproof.  The main body of the building should be light based on the ground situation. To secure internal space as much as possible, the constitution of the steel frame material and finishing materials should be slim and lightweight. The method of construction should keep the clearance from the border of the site to the building to a minimum. The structure and outer wall materials are decided basically automatically based on these conditions.

概要

所在地:東京都台東区

主要用途:専用住宅

構造・規模:鉄骨造 地上3階 

敷地面積:29.30m2

建築面積:23.42m2

延床面積:70.04m2

竣工:​2016

構造:久米弘記建築構造研究所

施工:株式会社栄建

撮影:傍島利浩

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