Sankei Building and Tokyu Livable Joint Project "(Tentative Name) Koto-ku Shin-Ohashi 1-chome Plan" Commences Development
Sankei Building and Tokyu Livable begin joint development of a rental residence in Koto-ku, offering urban convenience and stylish design.
📋 Article Processing Timeline
- 📰 Published: March 31, 2026 at 23:00
- 🤖 AI Analyzed: June 2, 2026 at 12:56 (1501h 56m after Published)
Sankei Building Co., Ltd. (Head office: Otemachi, Chiyoda-ku, Tokyo; President: Kazunobu Iijima) and Tokyu Livable, Inc. (Head office: Dogenzaka, Shibuya-ku, Tokyo; President: Shunichi Kobayashi) have accumulated efforts, such as Tokyu Livable undertaking sales consignment for Sankei Building's condominium brand "Lefront".
Now, with the aim of further strengthening their collaboration, the two companies have commenced development of "(Tentative Name) Koto-ku Shin-Ohashi 1-chome Plan" as their first joint venture in rental residences.
In this project, we aim to provide a living environment with higher added value by integrating the development and planning know-how cultivated by Sankei Building's "Lefront Progre" and Tokyu Livable's "Well Square". Key features of this property:
Key features of this property
1. Located 5 minutes walk from Morishita Station on the Toei Oedo Line and Shinjuku Line, and 10 minutes walk from Hamacho Station on the Toei Shinjuku Line, allowing access to 2 stations and 2 lines.
2. Exterior design harmonizing with the charm of the old town and the scenery of the Sumida River, with a lounge that makes an impressive impression from outside the building.
3. A luxurious living environment with hotel-like interior corridors, and a unit composition of 1DK and 2LDK to accommodate diverse lifestyles.
1. Located 5 minutes walk from Morishita Station on the Toei Oedo Line and Shinjuku Line, and 10 minutes walk from Hamacho Station on the Toei Shinjuku Line, allowing access to 2 stations and 2 lines.

The project site is located 5 minutes walk from Morishita Station on the Toei Oedo Line and Shinjuku Line, and 10 minutes walk from Hamacho Station on the Toei Shinjuku Line, allowing access to 2 stations and 2 lines. It boasts an excellent location with direct access to Shinjuku Station in 17 minutes via the Shinjuku Line and Otemachi Station in 14 minutes via the Oedo Line, reaching major city center areas within 25 minutes. The surrounding area offers a rich living environment combining urban convenience and old town charm, with daily necessities such as supermarkets, drugstores, and convenience stores, as well as the Sumida River riverside and Hamacho Park, all within walking distance.
2. Exterior design harmonizing with the charm of the old town and the scenery of the Sumida River, with a lounge that makes an impressive impression from outside the building.
The facade, with its calm color tones, harmonizes with the cityscape while creating a "chic old-town style" with shadows and depth. A business lounge is provided in the common area on the 1st floor, creating a beautiful and calm space visible from the street, while randomly arranged wooden panels and indirect lighting produce a soft light effect day and night.

3. A luxurious living environment with hotel-like interior corridors, and a unit composition of 1DK and 2LDK to accommodate diverse lifestyles.
The floor plans are designed for 1DK and 2LDK, accommodating diverse lifestyles from single individuals to DINKS. Lower floors primarily consist of 1DK units, while upper floors adopt spacious 2LDK plans. Furthermore, the hotel-like interior corridor design creates a luxurious living environment.
In this project, we will also provide a safe and secure living environment by adopting a "hands-free key system" for contactless access to units and installing BISTA disaster preparedness storage.
■Contribution to SDGs (Sustainable Development Goals)
The initiatives in this release contribute to 5 goals of the SDGs (Sustainable Development Goals).

Goal 3: Contactless entry unlocking, mailbox, and delivery box operation panels.
Goal 7: Installation of EV chargers to contribute to decarbonization.
Goal 8: Installation of Wi-Fi in common areas to provide comfortable and intellectually productive work spaces.
Goal 11: Contribution to regional town planning and landscape improvement through planting and exterior design plans harmonizing with the cityscape.
Goal 13: Installation of disaster preparedness storage stands for emergencies and stocking of emergency supplies.
■Property Overview


|
Project Name |
(Tentative Name) Koto-ku Shin-Ohashi 1-chome Plan |
|
Location |
9-1, Shin-Ohashi 1-chome, Koto-ku, Tokyo and others (land number) |
|
Structure/Scale |
Reinforced concrete, 10 stories above ground |
|
Total Units |
66 residential units |
|
Site Area / Total Floor Area |
Approx. 553.28㎡ / Approx. 2,948.22㎡ |
|
Exclusive Area / Layout |
25.17㎡〜50.49㎡ / 1DK・2LDK |
|
Design |
Chiba Sekkei Co., Ltd. |
|
Construction |
Kazakoshi Construction Co., Ltd. |
|
Start of Construction |
February 2, 2026 |
|
Completion |
November 30, 2027 (scheduled) |
|
Access |
5 minutes walk from Morishita Station on the Toei Oedo Line and Shinjuku Line 10 minutes walk from Hamacho Station on the Toei Shinjuku Line |
■About Sankei Building Co., Ltd.
Since its establishment in 1951, Sankei Building Co., Ltd. has been committed to creating business value that responds to changes in society and the times, by understanding the characteristics of cities and regions. Currently, we operate in six areas: building business, housing business, hotel resort business, senior business, logistics business, and overseas business, expanding our business areas from Hokkaido to Okinawa, and even overseas, primarily in the Tokyo metropolitan area and Kansai region.
As a "Culture Developer," we will continue to not only construct buildings but also propose ways of spending time and valuable experiences unique to each location, fostering new cultures that envision the future.
Corporate Website:https://www.sankeibldg.co.jp/

■About Tokyu Livable, Inc.
Since its establishment in 1972, Tokyu Livable has continued to transform and challenge itself. Through unique service development and creation of new businesses that pioneered the industry, we have consistently provided new value and contributed to the development and improvement of reliability in the real estate distribution industry.
Currently, while further deepening its core "sales brokerage" business, the company also operates in diverse business areas such as "rental brokerage," "real estate solutions," "real estate development and sales," "new construction sales consignment," and "asset consulting." Utilizing the know-how cultivated to date, as a "multi-value creator of real estate information," we will continue to meet customer expectations and provide support.
Corporate Website:https://www.livable.co.jp/corp/

FAQ
What are the main features of this project?
Key features include excellent access to the city center, an exterior harmonizing with old-town charm, hotel-like corridors, diverse layouts, and contributions to SDGs.
Which demographic is targeted?
It targets diverse lifestyles, such as single individuals and DINKS working in the city center, who seek convenience and comfort.
When is the project expected to be completed?
The completion is scheduled for November 30, 2027.