Revolutionizing Japanese Architecture: The Kushi Dango Project

Osamu Hamada's Innovative Approach to Apartment Housing Design

The Kushi Dango project was inspired by the necessity to effectively utilize small sites in Japan, a country with limited land area. Traditional Japanese properties often feature corridors installed on one side of a plate-like building, leading to issues with lighting, ventilation, and privacy. Hamada's innovative design addresses these concerns, offering a new perspective on Japanese architecture.

The Kushi Dango project is a joint housing initiative comprising five houses and offices on an elongated site measuring 15 meters by 50 meters. Each dwelling unit incorporates a semi-open courtyard, a unique feature that ensures adequate lighting and ventilation. The courtyards also serve to reduce noise complaints and enhance privacy, while fostering a sense of community among the residents.

Hamada's design was realized using the traditional Japanese wooden construction method. Each of the five dwelling units was designed with its own earthquake resistance measures, thereby enhancing the overall earthquake resistance performance of the building. This thoughtful approach to design and construction is a testament to Hamada's commitment to safety and durability.

The Kushi Dango project stands out for its technical specifications. The two-story wooden structure, with parts of reinforced concrete, boasts a total floor area of 499.16 m2. The external walls feature a dry board, spray finish, while the roof is made of Galvalume steel plate. The interiors are plaster finished, and the floors are made of teak wood and oak wood with an oil finish, lending a touch of elegance to the living spaces.

Residents of the Kushi Dango apartments enjoy an open and safe living environment, thanks to the strategic placement of the living room and dining room on the second floor. The use of teak for the flooring adds a sense of quality and comfort, while the courtyards provide a green living space for residents to enjoy.

The Kushi Dango project, which started in January 2011 and was completed in June 2012, is a shining example of innovative architecture that prioritizes the living environment over state-of-the-art facilities. It represents a significant step forward in Japanese apartment housing design, offering a blueprint for future projects in urban areas.