About Ms. Oka's House
Ms. Oka’s House TOMO is a community hub located in Kamikitazawa, Setagaya, created by making use of a traditional Showa-era house.
This used to be the “community classroom” where the owner’s great-aunt, Chitose Oka, taught English and piano.
Prompted by the wish expressed in his will—“I hope this house will be put to good use for the children and the community”—
Community activities began with a group of friends, and in 2010 it was relaunched as Ms. Oka’s House TOMO.
Today, it is beloved as a “community living room” where everyone is welcome, attracting more than 2,000 visitors annually.
We bring together people with diverse personalities and, by combining our wisdom, create a warm and welcoming place where people can relax and feel at ease.
We would be grateful for your support in various ways, whether by participating in events, joining our activities, or using our facilities.
Owner: Yoshimi Koike
Chitose Oka (Great-Aunt)
The History of Ms. Oka's House
From 1949 to 2006,
In accordance with the wish to “use this house for children and the local community,” Ms. Oka’s House TOMO was established on July 7, 2007, as a Setagaya Ward “Community Coexistence House.”
| Year | Event |
| Around 1952 | A place where many children gathered after she opened her home to the community. |
| In 2006 | Chitose Oka left a wish that the house be used for the local community. |
| In 2007 | Opened as Ms. Oka's House TOMO |
| In 2026 | A regional hub that attracts more than 2,000 visitors annually |
About Our Facility
Ms. Oka’s House TOMO is a small traditional home consisting of three Japanese-style rooms and a kitchen, all retaining the atmosphere of the Showa era. The scent of tatami mats, the wooden fixtures, and the soft light streaming through the windows create a soothing, nostalgic ambiance. Please make yourself at home.
■ The Entrance and the Veranda
■ Entrance
■ Kitchen
■ Japanese-style Room (Large Hall)
Old Items at Ms. Oka's House TOMO
The many old items preserved in Oka-san no Ie TOMO. The owner, Yoshimi Koike, shares the stories behind them as far as she knows.
■ Part 1: Organ
When the lid is opened, it reads “YAMAHA HAMAMATSU.” During repairs in 2005, the organ was found to be 103 years old. Since Mr. Oka passed away in 2006 at age 99, it had been with him nearly his entire life. Played by children and used for hymns at living room concerts, its simple tone still feels fresh today.
■ Part 2: Sewing Machine
This is a treadle sewing machine from Mr. Oka’s house, where two women once lived. From a time before fast fashion, it was used to make everyday items by hand. With its Art Deco style, it likely dates to the 1940s. Even after 80 years, it still works perfectly with only a new belt — a reminder of the beauty of analog technology.
