Culvert Guesthouse or Kitbashing architecture with prefabricated concrete tubes by Nendo
30/07/2022.
[Miyota - Nagano] Japan
metalocus, ANDRÉS MATAS
metalocus, ANDRÉS MATAS
Culvert Guesthouse is the last design by Japanese studio Nendo. A storage facility for archiving furniture, products, and artwork, as its own archive, with a guest house hidden in a dense forest on the edge of the city of Miyota-machi in Nagano prefecture, central Japan.
Named Culvert Guesthouse, the archive and residence, exemplify architectural "kitbashing" (reuse of elements with other functions in a new way) through the repurposing of precast concrete square tubes, used for culvert way systems or utilities power underground.
Named Culvert Guesthouse, the archive and residence, exemplify architectural "kitbashing" (reuse of elements with other functions in a new way) through the repurposing of precast concrete square tubes, used for culvert way systems or utilities power underground.
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Culvert Guesthouse by Nendo. Photograph by Daici Ano
Site. Culvert Guesthouse by Nendo.
Ground floor plan. Culvert Guesthouse by Nendo.
First floor plan. Culvert Guesthouse by Nendo.
Section. Culvert Guesthouse by Nendo.
Sketch. Culvert Guesthouse by Nendo.
Japanese architecture studio explores the application of five box culverts, or square tubes, used for infrastructural projects, as stacked on top of each other, around a space with a roof, to design a minimalist residential, and exhibition space.
Interiors are generated within the space of the culverts, as well as within the interstitial areas resulting from their assemblage. The interior dimensions of each tunnel are 2 x 2.3 meters.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Long, narrow storage rooms, used for artwork and design objects exhibition, until 40 meters long and are joined by two smaller rooms/tubes. The program of the guesthouse has access on the parallel east tube, locating the kitchen, bathroom, and toilet in the ground tube, while a compact bedroom and study are located in two perpendicular tubes, used as a first floor.
All of the concrete elements were painted white to give the archive and guest house a minimalist appearance. The client envisions that the project will continue to grow as more parts are added in the future.
Interiors are generated within the space of the culverts, as well as within the interstitial areas resulting from their assemblage. The interior dimensions of each tunnel are 2 x 2.3 meters.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Long, narrow storage rooms, used for artwork and design objects exhibition, until 40 meters long and are joined by two smaller rooms/tubes. The program of the guesthouse has access on the parallel east tube, locating the kitchen, bathroom, and toilet in the ground tube, while a compact bedroom and study are located in two perpendicular tubes, used as a first floor.
All of the concrete elements were painted white to give the archive and guest house a minimalist appearance. The client envisions that the project will continue to grow as more parts are added in the future.
Culvert Guesthouse by Nendo. Photograph by Takumi Ota.
Culvert Guesthouse by Nendo. Photograph by Daici Ano.
Project description by Nendo
A storage facility for archiving furniture, products, and artwork in Miyota-machi, Nagano Prefecture, with a guesthouse attached. Located in a quiet and nature-rich environment where streams weave through a thick forest of red pine, the tunnel-like architecture took shape through a combination of precast and prestressed construction methods.
For precast construction, common parts are molded in a factory and assembled on site. An example of its applications in infrastructure projects is the box culvert (box-shaped concrete structures), used to store waterways, pathways, power lines, and communication lines buried underground. However, since the method itself does not provide a leak-free composition nor does it allow for stacking, both necessary for this architecture, prestressing was also used to connect the parts together.
The prestressing method is a technique used in civil engineering structures such as bridges, in which the parts are aligned and then tightened with wires to connect them. This results in a seamless and smooth surface finish, obtaining a tight seal, and durability.
The common square-shaped parts weigh approximately 12 tons each, and a total of 63 of these parts were used. The size of the parts was derived from the loading size of the delivery truck and the weight that could be lifted by a crane. The 45-degree reinforcement at the entry corner, which is also found in general box culverts, serves as a brace and enhances earthquake resistance. By connecting these parts, a slender, tunnel-shaped space with an internal dimension of approximately 2 x 2.3 m was created. Fourteen wires were used to connect each “tunnel” and care was taken to apply uniform tension to each wire at all times. The work involved gradually tightening the wires over time until a tension of 46 tons was finally applied to each.
The building is composed of four stacked “tunnels” covered with a roof in the center. In addition to a long, narrow storage room with a depth of approximately 40 meters, there are two smaller storage rooms, but it is envisioned that more will be added to the site in the future as the collection grows. The kitchen, bathroom, toilet, and other water facilities are concentrated on the first floor, and a compact bedroom and a study are located on the second floor.
The windows were made without metal frames as much as possible, and high-transparency glass measuring up to 10 meters in length was fixed into the grooves in the same manner as shoji screens. The gravel and plantings used in the exterior were also arranged in the interior to draw the outside environment into the interior. To make it easier to walk on, the gravel was partially hardened with resin. Instead of just pouring resin over the gravel, which is usually the case, the resin was applied to the base first and then gravel was laid on it so that the surface wouldn’t become glossy. In addition, the door handles would have looked abrupt if installed as-is, so an original handle was designed, which hides in the small gap between the door and the wall. The bathtub is carved into the floor, such that the water surface aligns with the floor, creating the appearance that the tunnel shape is continuous.
The resulting space is less architectural, but rather a project that combines civil engineering concepts with product design details.
More information
Architects
Design team
Noritaka Ishibayashi, Ryota Maruyama, Daisuke Maeda.
Client
Dimensions
The interior dimensions of each tunnel are 2 x 2.3 meters.
Dates
7.2022.
Location
Miyota-machi, Nagano Prefecture, Japan.
Photography
Oki Sato. Nendo
Oki Sato. Born in Toronto, Canada, 1977. M.A. in Architecture, Waseda University, Tokyo and established “nendo” Tokyo office, 2002. Established “nendo” Milan office, 2005. “The 100 Most Respected Japanese” (Newsweek magazine), 2006. “The Top 100 Small Japanese Companies” (Newsweek magazine), 2007.
A jury member of iF award, 2010. Lecturer for Waseda University, Tokyo; “Designer of the Year” (Wallpaper* magazine): “Designer of the Year” (ELLE DECO International Design Awards), 2012. “Guest of honor” (Toronto Interior Design Show); “Guest of honor” (Stockholm Furniture & Light Fair), 2013. “Designer of the Year” (Maison & Objet); “Interior Designers of the Year” (Iconic Awards); “CHANGE MAKER OF THE YEAR 2015” (Nikkei Online), 2015. A producer of World Design Capital Taipei; Jury Chair for the Golden Pin Design Award, 2016.
A jury member of iF award, 2010. Lecturer for Waseda University, Tokyo; “Designer of the Year” (Wallpaper* magazine): “Designer of the Year” (ELLE DECO International Design Awards), 2012. “Guest of honor” (Toronto Interior Design Show); “Guest of honor” (Stockholm Furniture & Light Fair), 2013. “Designer of the Year” (Maison & Objet); “Interior Designers of the Year” (Iconic Awards); “CHANGE MAKER OF THE YEAR 2015” (Nikkei Online), 2015. A producer of World Design Capital Taipei; Jury Chair for the Golden Pin Design Award, 2016.
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