JR West Real Estate & Development Completes Soundproof Rental Apartment in Nakano's Arai
J Grancourt Nakano, a rental apartment building that JR West Real Estate & Development had been developing in Arai 2-chome, Nakano Ward, Tokyo, was completed on May 29, 2026. It is the company's first soundproof apartment building, designed with residents who play musical instruments, produce videos, or engage in livestreaming in mind.
The property is an 11-minute walk from Nakano Station on the JR Chuo Line and Tokyo Metro Tozai Line, and a 10-minute walk from Araiyakushimae Station on the Seibu Shinjuku Line. It is located along Nakano-dori Avenue, with convenience facilities such as Nakano Sun Mall shopping street and Nakano Broadway concentrated between the property and Nakano Station. The station building Atre Nakano is also scheduled to open in December 2026, which is expected to further improve the area's convenience (see related article: Atre to Open Station Building at Nakano Station).
The building is nine stories high with a total of 24 residential units and one retail unit. The units consist of 1K and 1LDK layouts. Each unit is equipped with a soundproof room as standard, and a total heat exchanger that allows ventilation without opening windows has also been adopted.
Supply of soundproof rental apartments is expanding amid diversifying housing needs related to sound, with Tokyo Tatemono planning to complete a 76-unit soundproof rental apartment building in Sasazuka in March 2028 (see related article: Tokyo Tatemono Breaks Ground on Soundproof Rental Apartment Project in Suginami Ward). This project marks JR West Real Estate & Development's first entry into this segment, as the company seeks to capture new housing demand in its Greater Tokyo rental housing business.
Key Facts
- Property Name: J Grancourt Nakano
- Developer: JR West Real Estate & Development Co., Ltd.
- Location: 2-10-8 Arai, Nakano-ku, Tokyo
- Nearest Station(s): 11-minute walk from Nakano Station on the JR Chuo Line and Tokyo Metro Tozai Line / 10-minute walk from Araiyakushimae Station on the Seibu Shinjuku Line
- Completion: May 29, 2026
- Number of Floors: 9F (reinforced concrete construction)
- Use: Multifamily housing, retail
- Total Units: 24 residential units / 1 retail unit
- Unit Layouts: 1K / 1LDK
- Unit Size: 30.66 sq. m to 43.50 sq. m (approx. 300 to 500 sq. ft.)
- Bicycle Parking: 32 spaces
- Environmental Certification: ZEH-M Oriented
