This architecture is a four-unit rental apartment for single person households in central Tokyo. It was designed based on the Japanese philosophy of Chisoku. And it was designed with bare concrete frame that maximize the limit of the site, and also with wooden booths where minimum living facilities and appliances were hidden inside. As a result, a freely space with a height of 3.5 meters was created. The residents use this blank space as an opportunity to enjoy their lives and to use it to collaborate with the local community. The project was designed to capture this blank space.

At Hiroaki Iwasa Architects Workshop, he aim to provide his clients with a richer and more enjoyable life and time. In each project, to provide a value-added design that solves the essential problem ,he carefully researches each situation and engages in repeated dialogue with the client. Based on this concept, he designs a variety of projects surrounding human being, including crafts, products, furniture, interiors, architecture, and the urban design, and has achieved many results.