Toyosaki is a minimalist house located in Osaka, Japan, designed by Coil Kazuteru Matumura Architects. This is a situation of owning a house with the attributes of being in the center of downtown, a renovation of an old house and a connected town house. This is opposed to the more common house in Japan, which is usually a rural, newly built detached residence.
Design development took place after the demolition of the interior walls in order to access the condition of the existing structures/MEP. The structure was enhanced to meet the latest code requirements. Also, the insulation was replaced to achieve equivalent quality of new houses as to meet the 4th grade energy saving performance evaluation program requirements in Japan.