Tsukiji Sushiiwa Tsukijiten was design in Tsukiji Tokyo, neighbor of former central fish market. Since sushi is now a days known as a world wide cuisine, The goal of this project was to design a sophisticated space which can be passed on to the future, a place where people can enjoy chef's traditional skills and sushi etiquette of Edomae sushi. The essence of Edomae sushi is to maximize the potential of fresh seafood through minimal hand work by the chef. Therefore focused on designing the sushi counter, so that the fresh seafood and chef's skills will stand out.

Hiroaki Iwasa Architects Workshop is an architectural design office founded in Tokyo in 1998 by Hiroaki Iwasa with the aim of providing people with a better future. In each project, he repeatedly research the situation based on dialogue with the client in order to solve essential issues and provide designs with new added value. Based on this concept, he have designed a variety of projects surrounding humans, including crafts, products, furniture, interiors, architecture, and urban design, and have achieved many results.

Founded in 1920. It is located in Tsukiji, the center of Japan's formers fish market, and in front of Tsukiji Honganji Temple. Customers can enjoy the seasonal seafood with Authentic Edomae style sushi prepared by the chef and hospitality in several seating styles.