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born 5 August 1957 is a Japanese architect, known for his innovative work with paper, particularly recycled cardboard tubes used to quickly and efficiently house disaster victims. Many of his notable designs are structures which are temporary, prefabricated, or incorporate inexpensive and unconventional materials in innovative ways. He was profiled by Time magazine in their projection of 21st-century innovators in the field of architecture and design.
In 2014, Ban was named the 37th recipient of the Pritzker Architecture Prize, the most prestigious prize in modern architecture. The Pritzker Jury cited Ban for his innovative use of material and his dedication to humanitarian efforts around the world, calling him "a committed teacher who is not only a role model for younger generation, but also an inspiration."
Ban's work encompasses several schools of architecture. First he is a Japanese architect, and uses many themes and methods found in traditional Japanese architecture (such as shōji) and the idea of a "universal floor" to allow continuity between all rooms in a house. In his buildings, this translates to a floor without change in elevation. By choosing to study under Hejduk, Ban opted to do something different. Hejduk's rationalism views on architecture provided a way of revisiting Western modernism and gaining a richer appreciation than the reductive vision of it as a rationalized version of the traditionalist—yet ultra-modern—Japanese space. With his Western education and influences, Ban has become one of the forerunning Japanese architects who embrace the expression of Western and Eastern building forms and methods. Perhaps most influential from Hejduk was the study of the structure of architectural systems. Ban is most famous now for his innovative work with paper and cardboard tubing as a building material. He was the first architect in Japan to construct a building primarily out of paper with his paper house, and required special approval for his building to pass Japan's building code. Ban is attracted to using paper because it is low cost, recyclable, low-tech and replaceable. The last aspect of Ban's influences is his humanitarianism and his attraction to ecological architecture. Ban's work with paper and other materials is heavily based on its Sustainable and because it produces very little waste. As a result of this, Ban's DIY (used in Japan after the Kobe earthquake, in Turkey, Rwanda and around the world) are very popular and effective for low-cost disaster relief-housing.
Ban created the Japanese pavilion building at Expo 2000 in Hanover, Germany in collaboration with the architect Frei Otto and structural engineers Buro Happold. The 72-metre-long gridshell structure was made with paper tubes. But due to stringent building laws in Germany, the roof had to be reinforced with a substructure. After the exhibition the structure was recycling and returned to paper pulp.
Ban fits well into the category of "Ecological Architects" but he also can make solid claims for being modernist, a Japanese experimentalist, as well as a rationalist. Natias Neutert, German thinker, critic, and poet, marks Ban in his essay as "a gentle revolutionary ... guiding contemporary architecture towards transparency, the spherical and the open". (2025). 9783885062998, Junius Verlag. ISBN 9783885062998
Ban himself quotes: "I don't like waste", summing up his philosophy and practice, known as "Paper Architecture".
In June 2020, he and other architects, as well as chefs, Nobel laureates in Economics and leaders of international organizations, signed the appeal in favour of the purple economy ("Towards a cultural renaissance of the economy"), published in Corriere della Sera, El País and Le Monde.
Limited material availability during times of disaster relief reconstruction is a major concern and involves increased market prices. Paper tubing on the other hand, not being a typical building material, is comparatively inexpensive and very accessible. In a special case in Turkey in 1999, Ban was able to get paper tubing for free. Paper tubing also proved advantageous for building emergency shelters during the Rwanda refugee crisis in 1994, where the use of trees for framing was creating deforestation problems, and alternative construction materials were difficult to find. The United Nations supplemented wood with aluminum piping but this was very expensive, and in the end the refugees sold off the aluminum for money. The refugees then reverted to cutting trees for building materials. Switching to paper tubing for frames helped save money, prevent theft and conserve the local trees. Ban's paper tube shelter design from Rwanda's Byumba Refugee Camp was featured in a PBS NewsHour story.
In 1995, the magnitude 7.2 Great Hanshin earthquake devastated Kobe, Japan, which offered a reconstruction project to Ban. Not only are the temporary shelters very cheap and easy to develop as they incorporate community participation, but they offer more versatile living conditions compared to traditionally used tents. The modules have paper tubing for walls, with small ventilation gaps between the members, which can also be taped up to insulate.The roof was made from a waterproof tenting material while the foundation consisted of donated beer crates filled with sandbags.
Ban's interest in using existing materials aligned with his minimalist ideology. There was never a question of manufacturing a different paper material as current technologies such as waterproofing films, polyurethane and acrylic paints can be used to improve its material properties. In the design of "The Paper Dome" in 1998, paper as an innovative building material had to meet the rigorous construction codes, so a great deal of structural engineering data was submitted to the government. In this project straight paper tube were connected by laminated timber joints. Although the joints were expensive, the low price of the paper tubing made for an inexpensive overall budget. In addition, the paper tubes were waterproofed with liquid urethane to minimize expansion and contraction due to humidity variances found in Osaka-Cho Japan.
Another project, the Expo 2000 Japanese Pavilion, in Hannover, Germany, also used paper tubing but at much longer dimensions of with diameters, at a less than thickness. It was also waterproofed both inside and out by a coating of polyurethane to meet testing requirements for extreme weather conditions and fire protection. Surprisingly, the paper tubes are very difficult to burn due to the high density of the material. Ban's design allowed for full Recycling of the Japanese Pavilion, in keeping with Expo 2000's theme of Environmentalism. Fabric tape was used instead of mechanical joinery. The fabric tape allowed for complicated movement, and also naturally post tensioned the structure. The main tunnel of the pavilion was designed as an incredibly large space, at (L × W × H). The fabric tape was used with a buckle system which allowed for manual construction and dismantling. Due to the strict building codes in Germany and the unconventional use of paper as a revolutionary building material, the Japanese Pavilion had to be over-designed and incorporate wooden elements, thus, becoming more of a hybrid structure. An innovative design feature was Ban's use of recyclable wooden boxes filled with sand instead of a concrete foundation.
In the 2024 Taschen release of Shigeru Ban's Complete Works 1985–Today, the architect named among his primary inspirations the Japanese structural engineer Gengo Matsui, who helped him develop paper as a structural material for his projects. When describing the collaborative process between him as the architect and Gengo Matsui as the structural engineer, Shigeru Ban recalls: "He taught me to see the structural engineering process visually, almost intuitively".
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