Hosts: Yoshioka-Bunko Foundation  Shinkenchiku-sha Co., Ltd.

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June 1, 2020
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[204] House with Growth
Koichi Tamura (Japan)

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Sasha Urano+Hansong Cho “House for Our Mothers”


Sasha Urano+Hansong Cho “House for Our Mothers”

Sasha Urano+Hansong Cho “House for Our Mothers”

Food security is a pressing issue in sub-Saharan Africa, where population growth is estimated to double by 2050, with more than half of the population living in urban areas. As cities grow, more extensive farmland is needed, However, further expansion into uncultivated areas is risky due to biodiversity loss and increased greenhouse gas emissions. At present, one-sided urbanization including the destruction of farmland is forming a significant proportion of urban slums. Today, more refugees live in cities than in refugee camps in sub-Saharan Africa. The main objective of this project is to supplement the food demands of the city and respond to the rapidly changing urban population. This proposal consists of platformed farmland as a moving machine and self-growing housing modules using 3D printing of local soil (adobe and cob, made from clay, sand, silt, aggregate and chopped straw), which enables the building to extend flexibly and reduce transportation costs. These two elements enable the farmland that would have been destroyed for the construction to be left as the farmland with the potential for high-rise development to flexibly respond to subsequent spatial demand. For example, starting with minimal volumes for accommodating people living in slums, the volume can be increased several times as urbanization expands. In the meantime, the platformed farmland could keep producing food. Also, the soil-based construction facilitates demolition and reduces the environmental damage caused by the construction waste. The system bridges new communities and food security with a high degree of adaptability and sustainability.


Koichi Tamura
Born in Osaka, Japan in 1996 / Graduated from Kyoto Institute of Technology in 2019 / Currently a postgraduate student of Kyoto Institute of Technology since 2019 / Studied at Aalto University in 2019