Husband-and-wife design duo Yui and Takaharu Tezuka, the founders of Tokyo-based firm Tezuka Architects, are known for their innovative efforts at tackling site-specific limitations. Their extensive portfolio includes the oval Fuji Kindergarten aimed at fostering a dynamic child-friendly environment, the climbing frame-like Roof House in Hadano and the mountaintop Museum Of Natural Science in remote Niigata—winning them awards including the Japan Institute of Architects Prize and Association for Children's Environment Design Award. 

With one project, though, they faced a limitation a little closer to home. Their own Tokyo home is designed to house everything within a single space, encouraging time spent together—with private spaces limited to open up the modest area. Here, the Tezukas invite Japanese director Yutaka Obara into their airy sun-drenched home to talk time, space and the importance of time spent together.