Kumi Inoue Architects
Skip Floor|Introduction to Architecture Firms|Stepped Levels Enrich the Space
Author: Qurasuki Editorial Department
A skip floor (split-level) is a design technique that introduces intermediate floor levels between primary floors to produce three-dimensional variation and spatial depth. By manipulating sightlines and ceiling heights, it can make confined floor areas feel more expansive, and it is often employed in urban housing as a planning strategy that turns compact site constraints to an advantage. At the same time, this approach demands the designer’s experience and technical expertise due to considerations such as accessibility (barrier-free design) and increased complexity in structural planning. Here we introduce architectural firms that have refined the skip-floor concept into a distinctive spatial quality.
In-Ex Design Co., Ltd.
4-59 Takanoizumicho, Sakyo Ward, Kyoto City, Kyoto Prefecture
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The bed zone located at the site corner balances light, ventilation, and privacy
In-Ex Design Co., Ltd.4-59 Takanoizumicho, Sakyo Ward, Kyoto City, Kyoto Prefecture -
Concrete retaining walls flanking the site frontage correspond to the original ground level.
In-Ex Design Co., Ltd.4-59 Takanoizumicho, Sakyo Ward, Kyoto City, Kyoto Prefecture -
From the entrance, the bed zone extends toward the south garden
In-Ex Design Co., Ltd.4-59 Takanoizumicho, Sakyo Ward, Kyoto City, Kyoto Prefecture -
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Atelier Cotocoto
4 Sekimachiminami, Nerima-ku, Tokyo
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The LDK, elevated half a floor above the earthen level, directs views toward the inner courtyard and the natural scenery along the Jōsui Canal.
Atelier Cotocoto4 Sekimachiminami, Nerima-ku, Tokyo -
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Archiplace
502 Palm House Hatsudai, 1-20-2 Honmachi, Shibuya-ku, Tokyo
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The exterior walls are clad in Galvalume steel panels painted in a deep blue favored by the clients.
Archiplace502 Palm House Hatsudai, 1-20-2 Honmachi, Shibuya-ku, Tokyo -
Fully sound-isolated music room featuring double-glazed windows and entrance doors overlooking the garden
Archiplace502 Palm House Hatsudai, 1-20-2 Honmachi, Shibuya-ku, Tokyo -
A large window in the bathroom allows occupants to bathe while basking in natural sunlight.
Archiplace502 Palm House Hatsudai, 1-20-2 Honmachi, Shibuya-ku, Tokyo -
Descending half a floor from the main entrance leads to the semi-basement, which houses the master bedroom and benefits from floor area ratio relief.
Archiplace502 Palm House Hatsudai, 1-20-2 Honmachi, Shibuya-ku, Tokyo -
Upon entering the entrance, a spacious earthen floor area features a custom-built kitchen counter for the husband’s confectionery hobby
Archiplace502 Palm House Hatsudai, 1-20-2 Honmachi, Shibuya-ku, Tokyo -
A circulation route extending from the work corner through an indoor drying terrace leads to the washroom
Archiplace502 Palm House Hatsudai, 1-20-2 Honmachi, Shibuya-ku, Tokyo
Coo Planning
201, M'S Kyomachibori Building, 1-7-17 Kyomachibori, Nishi-ku, Osaka City, Osaka Prefecture
Yoshihiro Yamamoto Architects Associates
302, Zeniya Honpo Main Building, 14-6 Ishigatsujichō, Tennōji-ku, Osaka
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Dining area. Flooring is 35 mm-thick Yoshino cedar scaffold planks.
Yoshihiro Yamamoto Architects Associates302, Zeniya Honpo Main Building, 14-6 Ishigatsujichō, Tennōji-ku, Osaka -
Interior and exterior left in a naked, unlined skeleton state.
Yoshihiro Yamamoto Architects Associates302, Zeniya Honpo Main Building, 14-6 Ishigatsujichō, Tennōji-ku, Osaka -
Different spaces are connected through the windows.
Yoshihiro Yamamoto Architects Associates302, Zeniya Honpo Main Building, 14-6 Ishigatsujichō, Tennōji-ku, Osaka -
View down to the living and dining from the stair landing.
Yoshihiro Yamamoto Architects Associates302, Zeniya Honpo Main Building, 14-6 Ishigatsujichō, Tennōji-ku, Osaka -
Entrance leading to the doma; the floor is mortar tinted with sumi ink.
Yoshihiro Yamamoto Architects Associates302, Zeniya Honpo Main Building, 14-6 Ishigatsujichō, Tennōji-ku, Osaka -
Doma-style garage. Beneath the mezzanine is a secret hideout.
Yoshihiro Yamamoto Architects Associates302, Zeniya Honpo Main Building, 14-6 Ishigatsujichō, Tennōji-ku, Osaka
JYU ARCHITECT
2-19-19 Nakane, Meguro-ku, Tokyo
Yosuke Tomiya Architectural Design Co., Ltd.
4-8, 16-chome, 5-jo, Shinkawa, Kita-ku, Sapporo, Hokkaido
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The dining table is custom-made from solid walnut.
Yosuke Tomiya Architectural Design Co., Ltd.4-8, 16-chome, 5-jo, Shinkawa, Kita-ku, Sapporo, Hokkaido -
First-floor hall and doma (earthen-floored) area.
Yosuke Tomiya Architectural Design Co., Ltd.4-8, 16-chome, 5-jo, Shinkawa, Kita-ku, Sapporo, Hokkaido -
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When seated on the sofa, passersby are just out of view and only the greenery is reflected in the window.
Yosuke Tomiya Architectural Design Co., Ltd.4-8, 16-chome, 5-jo, Shinkawa, Kita-ku, Sapporo, Hokkaido
Naoko Matsumoto Architects & Associates
1304 Park Front Nakano Arai Yakushi, 5-5-10 Arai, Nakano-ku, Tokyo, Japan
Tatsumi Negishi Architectural Studio
532-5 Nakazawa, Hidaka City, Saitama Prefecture, Japan
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Family spaces connected vertically, horizontally, and diagonally
Tatsumi Negishi Architectural Studio532-5 Nakazawa, Hidaka City, Saitama Prefecture, Japan -
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A rooftop for enjoying beer—a slightly indulgent space
Tatsumi Negishi Architectural Studio532-5 Nakazawa, Hidaka City, Saitama Prefecture, Japan -
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