Revitalizing Tradition: Koganeyu's Second Bathhouse Opens in Shinjuku

In a heartwarming expansion for Tokyo’s beloved public bath culture, Koganeyu, a cherished sento located in Sumida, has announced the grand opening of its second location, Koganeyu Shinjuku, set for late May 2026. This new facility is housed in the historic Kanazawa Bathhouse, which has stood for over 50 years in Higashi Shinjuku. Owned by Shinbo Yokujo Co., Ltd., both Koganeyu and its original bathhouses—Daikoku-yu and Sakura-yu—have been integral to the community, bringing relaxation and joy to countless visitors.

A Fresh Approach to Bathing

Koganeyu Shinjuku aims to rejuvenate the traditional bathhouse experience by implementing innovative designs and eco-friendly practices. Collaborating with artist Hiroko Takahashi, known for her impactful branding work on the Tokyo location, and renowned architect Yuko Nagayama, Koganeyu Shinjuku promises a fresh and inviting atmosphere. Their vision is not just to maintain the old traditions of sento but to enhance them, creating an environment that comforts regulars while welcoming newcomers to the culture.

One of the most noteworthy advancements at this upcoming facility is the integration of solar thermal technology. Shinbo Yokujo will become the first private entity in Japan to install this eco-conscious heating system in its bathhouses. The decision to utilize solar energy for heating bathwater reflects a commitment to sustainability and aims to reduce CO2 emissions by 38%. This move not only supports environmental initiatives but also sets a precedent for the future of public bathhouses in Japan.

Furthermore, the management is excited to announce a crowdfunding campaign via Campfire, launching in late February 2026, allowing community members to engage with the project before its opening.

Facility Overview

- Name: Koganeyu Shinjuku
- Address: 1F, Kanazawa Mansion, 7-22-11 Shinjuku, Shinjuku City, Tokyo
- Admission: 550 yen for adults (middle school students and older) – sauna fees extra
- Official SNS:

- Instagram: Koganeyu Shinjuku
- X: @koganeyu2

- Website: Details forthcoming

A Vision for Koganeyu Shinjuku

The philosophy behind Koganeyu is centered on creating “spaces of happiness.” The goal is to provide an experience that alleviates daily stress, fosters community connections, and encourages patrons to leave feeling enriched and rejuvenated. The bathhouse aspires to blend tradition with modernity, offering a unique space with a beer bar featuring self-brewed beer and a spacious sauna area, all enhanced by the presence of nostalgic murals—a trademark of the sento culture.

Misa Shimizu, an experience advisor and sauna enthusiast, shares her excitement about contributing to this remarkable transformation. She hopes that the new bathhouse will inspire a love for sento among newcomers and experienced visitors alike. Her involvement underscores the importance of user perspective in creating a welcoming environment for all.

Embracing Change While Honoring Tradition

Renovation of the former Kanazawa Bathhouse symbolizes a commitment to honoring the past while embracing the future. Yuko Nagayama, tasked with the interior design, aims to express the layered memories of the streets of Shinjuku, where contemporary culture meets historical significance. This dedication aims to weave together elements of comfort, personal stories, and the distinct cultural heritage of public bathhouses.

In addition to innovative designs, the new bathhouse is focused on inclusivity. The cultural essence of the sento, combined with modern amenities, will cater to a diverse clientele, encouraging new generations to appreciate this traditional Japanese bath culture.

A Bright Future Ahead

As Koganeyu Shinjuku gears up for its 2026 opening, the community is invited to be part of this transformational journey. The combination of tradition and modernity, along with commitment to sustainability, signifies a new era in the world of Japanese public bathing. For those eager to experience the delightful fusion of old and new, Koganeyu Shinjuku promises to deliver an unparalleled sento experience, echoing the warmth and joy that has defined its predecessor in Sumida for years.

Stay tuned for updates as the project develops and look out for the crowdfunding initiative, which will allow you to contribute to this landmark opening—one that is sure to leave ripples across the cultural landscape of Tokyo.