#Japan #Tokyo #Tokyo Tower #Brillia ist #Sacred Music

The New Soundproof Haven: (Tentative) Sasazuka Project

Tokyo's urban lifestyle, known for its hustle and bustle, is about to embrace a new sound of living. The Tokyo Tatemono Company, alongside Rebran, has broken ground on a unique rental apartment complex called the (Tentative) Sasazuka Project, set to open on October 1, 2025. This innovative building promises full soundproofing across all its 76 units, allowing residents to play musical instruments and stream video games at any hour without disturbing their neighbors.

Overview of the Property

Situated just a 5-minute walk from the Keio Line’s “Daitabashi” station and a 10-minute stroll from “Sasazuka,” this 14-floor apartment building is designed with a variety of lifestyle needs in mind. The units will not only cater to solo residents with approximately 30㎡ 1K type apartments but will also feature spacious 3LDK units of around 100㎡, responding effectively to the requirements of individuals, couples, and families alike.

With the number of people playing musical instruments rising to about 11 million nationwide, interest in soundproofed living spaces is at an all-time high, especially among serious instrumentalists who perform more than once a month. In urban areas, options for sound-conscious living are often limited, which is why the demand for such apartments, particularly those developed by Rebran, has soared. The company’s waiting list for applicants now exceeds 10,000 individuals, denoting a strong market need as of September 2025.

Innovative Design and Soundproofing

The Sasazuka Project will apply advanced soundproofing techniques to achieve a target noise reduction rating of D-70, effectively mitigating noise between adjoining units. The apartments will utilize floating floor construction to diminish impact sounds, alongside a 'Box in Box' method where walls and ceilings will be separate from the main building frame. This dual approach ensures that sound traveling via air and solid mediums is significantly reduced, supporting households’ musical pursuits.

Special design features will accommodate musical lifestyles, such as dedicated pathways that can facilitate the entry of grand pianos and other large instruments. Residents will also enjoy a sophisticated intercom system equipped with flashlights for incoming guests, ensuring seamless performances without interruptions. High-mounted wardrobe systems will cater to musicians requiring tailored storage for performance attire and accessories.

The Environment and Local Culture

The property boasts highly advantageous accessibility, surrounded by the busy Kan-nana Road, Koshu Road, and the Metropolitan Expressway. However, the backdrop of its busy vicinity necessitates a heightened level of sound insulation for comfort. Additionally, the proximity to Shimokitazawa—an area celebrated for its theaters and live houses—highlights its cultural appeal as a “music town.” Integrating advanced soundproofing into the apartment design not only meets residential demands but enhances the overall living experience by creating value in a bustling environment.

Brillia ist and Musision: A Legacy of Excellence

The Tokyo Tatemono Company’s Brillia ist brand, embodied by its roots in individuality, presents solutions harmonizing urban living while delivering practicality and timeless elegance. In parallel, Rebran’s Musision brand has catered to musical enthusiasts for over 25 years, achieving a remarkable annual occupancy rate of 99.3% as of 2024. This demonstrates a robust appreciation for quality soundproof living among music lovers, contributing to the enduring demand.

As Japan continues to innovate in the real estate sector, the Sasazuka Project stands as a beacon for a new kind of modern living—one where passion for music and gaming can flourish within the comfort of home.

Property Details

• - Property Name: (Tentative) Sasazuka Project
• - Location: 1-Chome, Izumi, Suginami-ku, Tokyo
• - Transport: 5-minute walk from Daitabashi Station, 10-minute walk from Sasazuka Station
• - Land Area: 675.51㎡
• - Building Area: 4,005.83㎡
• - Structure/Floors: RC structure, 14 floors
• - Total Units: 76, with 1 retail space
• - Floor Area: 3,269.24㎡
• - Layouts: Ranging from 1K (approx. 30㎡) to 3LDK (approx. 100㎡)
• - Design and Supervision: IAO Takeda Sekkei Co., Ltd.
• - Construction: Ikeda Construction Co., Ltd.
• - Planned Completion Date: March 2028

This project symbolizes the future of apartment living in the heart of Tokyo, where music and gaming enthusiasts can fully embrace their passions.