The Tokyo Toilet is an urban redevelopment project in Shibuya, Tokyo conceived by entrepreneur Koji Yanai, of Uniqlo and Fast Retailing, and funded by the Nippon Foundation. It involves the construction of modern high-quality public restrooms, with the aim of encouraging their use and consequently the use of the public spaces they serve, such as parks and other common areas. The project includes 17 structures designed by 16 architects.