Wedge House Жылы дом by Kiyoshi Sugimoto

Wedge House Жылы дом by Kiyoshi Sugimoto is a highly esteemed winner of the very prestigious 2025 Бронзавая прэмія A' Design Award in Дызайн архітэктуры, будынкаў і канструкцый Competition Category.

БронзаАрхітэктура· 2025

Wedge House Жылы дом

by Kiyoshi Sugimoto

Client: Masato Ikuta

Бронзавая прэмія A' Design Award Winner in Архітэктура Category

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Colors

The Design

About Wedge House Жылы дом

Wedge House — гэта трохпавярховы жылы дом, пабудаваны на вузкім участку з крутым нахілам у горадзе Ікэда, Японія. Клінападобны папярочны разрэз размяшчае найбольшы паверх зверху, а найменшы — пад зямлёй, так што на старую падпорную сцяну не аказваецца дадатковага ціску. Два верхнія паверхі выкананы з дрэва, а падвал — з жалезабетону. Усходняя і заходняя сцены аздоблены пакрытымі срэбрам сталёвымі пласцінамі, якія падтрымліваюць кансольны паверх і фармуюць від на поўдзень. Жылая зона на другім паверсе выходзіць на тэрасу з шырокім відам.

The Recognition

About the Бронзавая прэмія A' Design Award

Wedge House Жылы дом — пераможца Бронзавай прэміі A' Design Award, высокапрэстыжнага прызнання, якое прысуджаецца выдатным дызайнам, што вылучаюцца творчасцю, вынаходлівасцю і праніклівасцю. Бронзавыя пераможцы — гэта ўмелыя і ўражліва творчыя артэфакты, якія пацвярджаюць вялікі вопыт, уяўленне і знаходлівасць сваіх дызайнераў. Чакаецца, што Wedge House Жылы дом — гэта высока цэнены, захапляльны і любімы прадмет, надзвычай прафесійны і інавацыйны. Гэты дызайн, што атрымаў Бронзавую прэмію A' Design Award, уключае лепшыя практыкі ў мастацтве, навуцы, дызайне і тэхналогіях і выдатны ўвагай да дэталей. Wedge House Жылы дом цудоўна задавальняе патрэбы, кранае жаданні, зачароўвае пачуцці і ўзбуджае цікаўнасць.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: The site has a nice view, but it is narrow and has a steep slope, and due to area regulations, the building coverage ratio is a strict 40%.
In order to meet the required area to comply with strict regulations, we adopted a three-story mixed structure with two floors above ground made of wood and one floor below ground made of reinforced concrete.
The building has a wedge-shaped shape, with the second floor, which has the best view, as the living space and the largest area, and the area decreases as you go to the lower floors to avoid applying force to the retaining wall.
Dimensions & Packaging: Total floor area 111.16㎡　Width 5560mm x Depth 11000mm x Height 10190mm
Tags: Slopingland structure protruding structure wedge Basement mountainside
Production Technology: The east and west walls are finished with silver galvalume steel plates, which support the cantilevered floor that protrudes from the basement, and at the same time serve to frame the view to the south.
The basement is a bedroom with a sense of security that feels like it's nestled on a slope. The first floor has a water area and a study with a view of the greenery of the park behind the deep eaves. From the sky terrace of the LDK on the 2nd floor, you can enjoy a panoramic view of the Osaka plains. This is a house where you can enjoy the three different slopes of Mt. Satsuki.
Design Challenge: Stable structural design with an underground shape that does not apply force to old retaining walls on a narrow, steeply sloped site, and a protruding structure for the wooden upper building.
Research: Research on stable structures with protruding shapes in wooden buildings
Inspiration: The site is located at the foot of Mt.Satsuki in Ikeda City, Osaka Prefecture, Japan. The site was narrow, and more than half of the site was on a steep slope.
Additionally, the site is located on an old, tall retaining wall, so the building had to be constructed in a way that would not put stress on the retaining wall.
Therefore, the building's cross-sectional shape is wedge-shaped, with the basement being the smallest and increasing as the floors rise.
Project Duration: Design for the project began in September 2022 at a site in Ikeda City, Osaka Prefecture, and was completed in June 2024.
Operation Flow: A basement with a shape that does not apply force to the old retaining wall, and a pop-out floor structure for the upper wooden building to maintain the required area.
Team Members: KIYOSHI SUGIMOTO
Image Credits: All photos and videos Hirofumi Imanishi