In a new film by Akira Koyama, founder and owner of KEY OPERATION INC. / ARCHITECTS, the Tokyo architect gives an on-site tour of Ginza Extra Small Building, a five-story commercial building with a tiny footprint.

Two new films from Tokyo's Key Operation Inc. take viewers inside a pair of recently completed apartment buildings in Yokohama designed by the firm for ZOOM. Though dramatically different in architectural expression, each project addresses the same functional and code considerations, while also overcoming the sameness of other large-scale residential buildings in Japan's second-largest city.

A new short film made by Akira Koyama of Key Operation Inc. takes viewers inside the Inagawa Cemetery Chapel and Visitor Centre north of Osaka, Japan. The four-year-old building was designed by David Chipperfield Architects with Key Operation Inc. as associate architect.