The building was designed by Kenji Sugimura and has three stories.

The first floor consists of exhibition rooms and a library that houses about 80,000 collections.

The second floor has a larger exhibition space and a conference room.

[1] In the museum, there are over 90,000 works including materials, such as letters and manuscripts.

Materials and literary works of writers with ties to Setagaya City are available to the public.