The Shirokane 1-chome Seibu-Naka District Type 1 Urban Redevelopment Project is a district redevelopment in Shirokane 1-chome, Minato City, Tokyo. The project area is about 1.6 hectares, and the site is within walking distance of Tokyo Metro Namboku Line and Toei Mita Line "Shirokane-Takanawa" Station. It covers an established urban area near Shirokane Shopping Street. In an area that has long combined residential and commercial uses, the project is being advanced as a district-scale renewal effort that also addresses aging buildings and narrow streets.
The core of the plan is Block A, where a supertall tower with 39 above-ground floors, 1 basement level, and a height of about 140 meters will be developed. It will include 991 homes, retail space, childcare support facilities, parking, and more. The project also includes low-rise buildings in Blocks B-1 and B-2, forming a three-block plan. The development plan is designed not only to supply high-rise housing, but also to connect with surrounding daily-life functions and the existing streetscape.
The developer is the Shirokane 1-chome Seibu-Naka District Urban Redevelopment Association. After the urban planning decision in July 2018, the association establishment approval in June 2022, and the rights conversion plan approval in February 2024, construction is scheduled to begin in October 2025 and be completed in fiscal 2029. Minato City positions the project as one that will introduce high-quality housing with strong residential permanence and commercial functions linked to Shirokane Shopping Street, the area’s key axis of activity, in order to create a mixed-use urban district.
Plan Overview
| Item | Details |
|---|---|
| Project name | Shirokane 1-chome Seibu-Naka District Type 1 Urban Redevelopment Project |
| Location | Shirokane 1-chome, Minato City, Tokyo |
| Developer | Shirokane 1-chome Seibu-Naka District Urban Redevelopment Association |
| Project owner | Not disclosed in the publicly available materials |
| Participating members | Tokyu Land Corporation, Mitsui Fudosan Residential, Taisei Corporation, Taisei Yuraku Real Estate, and Japan Post Real Estate — 5 companies (source: trade press reports including Kensetsu Tsushin Shimbun and R.E.port) |
| Project partners | Taisei Corporation participates as the designated business agent (source: trade press reports including Kensetsu Tsushin Shimbun and R.E.port) |
| Area | About 1.6 hectares |
| Site area | Not disclosed in the publicly available materials |
| Total floor area | About 99,860 square meters (Block A about 97,910 square meters, Block B-1 about 1,000 square meters, Block B-2 about 950 square meters) |
| Height | Block A about 140 meters, Block B-1 about 15 meters, Block B-2 about 15 meters |
| Number of floors | Block A: 39 above-ground floors and 1 basement level; Block B-1: 4 above-ground floors; Block B-2: 4 above-ground floors |
| Main uses | Housing, retail, childcare support facilities, factory, parking, and more |
| Number of homes | 991 units |
| Parking | 263 spaces (Block A) |
| Building coverage ratio | About 43% (Block A) |
| Floor area ratio | About 649% (Block A) |
| Urban planning decision | July 2018 |
| Approvals | Association establishment approval in June 2022; rights conversion plan approval in February 2024 |
| Construction start | October 2025 |
| Planned completion | Fiscal 2029 |
| Project cost | About ¥79.0 billion (source: Tokyo Metropolitan Government Bureau of Urban Development official website) |
The outline of the project confirmed from the published materials is the reorganization of about 1.6 hectares within walking distance of Shirokane-Takanawa Station into three blocks, combining a supertall residential tower with commercial and daily-life support functions. In particular, while Block A accounts for most of the overall site, Blocks B-1 and B-2 are configured as low-rise buildings, suggesting a plan that does not end with a single large tower but instead secures multiple points of contact with the surrounding urban fabric.
The Condominium Name "BRANZ TOWER Shirokane" and the Five-Company Association
The for-sale condominium to be built in Block A has been reported in construction trade press and real estate media under the name "BRANZ TOWER Shirokane" (ブランズタワー白金), using Tokyu Land Corporation's "BRANZ" condominium brand. The participating association members are Tokyu Land Corporation, Mitsui Fudosan Residential, Taisei Corporation, Taisei Yuraku Real Estate, and Japan Post Real Estate — five companies in total — with Taisei Corporation serving as the designated business agent. According to materials published by the Tokyo Metropolitan Government Bureau of Urban Development, the total project cost is about ¥79.0 billion. As of this writing, the developer has not officially announced the formal sales name or sales launch timing, so readers should check Tokyu Land Corporation's official announcements for the latest information.
Key Features
The defining feature of this project is the division of functions among the three blocks: Block A, Block B-1, and Block B-2. Block A is the main building, with a total floor area of about 97,910 square meters, 39 above-ground floors, and 1 basement level. It is planned to house 991 units, retail space, childcare support facilities, and 263 parking spaces. By contrast, Blocks B-1 and B-2 are each limited to 4 above-ground floors and a height of about 15 meters, and are thought to play a role in softening the scale difference with the surrounding existing buildings.
Another important point is that the use program explicitly includes "housing, retail, childcare support facilities, factory, parking, and more." Because the plan includes factory uses in addition to residential and commercial functions, the redevelopment may be premised on accommodating existing rights holders’ former functions and supporting continuity of livelihoods. With the introduction of childcare support facilities as well, the project can be understood not simply as condominium-led development, but as a mixed-use urban district intended to incorporate functions that support daily life.
In terms of schedule, about seven years elapse from the urban planning decision in July 2018 to the construction start in October 2025. As a Type 1 urban redevelopment project, it has gone through the urban planning, association establishment, and rights conversion stages in sequence, leading to construction after the rights conversion plan was approved in February 2024. Including the planned completion in fiscal 2029, the project spans a long period, but it is also a plan to integrate urban infrastructure renewal, housing supply, and local commercial restructuring.
According to Minato City’s explanation, Shirokane Shopping Street is positioned as the area’s key axis of activity, and commercial functions linked to that shopping street will be introduced. Rather than aiming to complete consumption within the redevelopment blocks alone, the plan is grounded in circulation and relationships with the existing shopping street, reflecting the context of Shirokane 1-chome as an established urban district. The tenant composition of the commercial space and the detailed circulation of the low-rise portions have not yet been disclosed in the publicly available materials, but the project concept itself is relatively clear.
What Is "Rights Conversion"? How Rights Holders' Assets Are Handled
This project received approval for its rights conversion plan from the Governor of Tokyo in February 2024. Under the Urban Redevelopment Act, "rights conversion" is a mechanism under which rights holders who owned land and buildings before redevelopment are allocated floor space (and a corresponding share of the site) in the completed redevelopment building, in proportion to the value of their prior assets. Because the allocation is calculated to be equivalent in value to the rights holder's prior assets, rights holders can, in principle, acquire floor space in the new building without any out-of-pocket cost. Approval of the rights conversion plan is one of the statutory procedures that follows the urban planning decision and the association establishment approval, and only after this approval can demolition and construction work begin.
"Shirokane 1-chome" and the Neighboring "Shirokanedai" Are Different Districts
The Shirokane 1-chome Seibu-Naka District is located in Shirokane 1-chome, Minato City, Tokyo. Minato City contains both "Shirokane," which runs from Shirokane 1-chome to Shirokane 6-chome, and "Shirokanedai," which runs from Shirokanedai 1-chome to Shirokanedai 5-chome — two administrative districts with similar names but distinct boundaries. Under the 1969 (Showa 44) residential address reorganization, several former district names, including the old Shiba-Shirokanedai-cho, were consolidated to form today's "Shirokanedai." The "Shirokane 1-chome Seibu-Naka District" where this project is underway is part of the "Shirokane" area, and readers should note that this is not a redevelopment in the neighboring "Shirokanedai" area to the south.
Relationship to Nearby Projects and the Area
The project site is within walking distance of Shirokane-Takanawa Station, and it is located in a daily-life area close to Shirokane Shopping Street while benefiting from station access. For that reason, this project is best understood not as a redevelopment that directly renews a station plaza or transport hub function, but as one that updates the urban fabric serving residential demand around the station. Its character is defined by its location, which assumes both station access and shopping street use.
In the same Shirokane 1-chome area, the eastern north district redevelopment led to the completion of Shirokane The Sky in 2023. By contrast, the western central district is an independent project with a different redevelopment area, developer, and project concept. Although multiple large-scale renewal projects are advancing within the same Shirokane 1-chome area, the published materials show that they are not integrated developments and must be understood as separate redevelopment projects.
Within that context, the western central district is distinctive for proposing a mix that includes 991 housing units while also incorporating coordination with Shirokane Shopping Street, childcare support facilities, and factory use. The three-block composition, including Blocks B-1 and B-2, also indicates a direction in which the approximately 140-meter Block A is not isolated on its own, but instead creates relationships with the surrounding blocks through the low-rise portions. Among the redevelopment projects underway around Shirokane 1-chome, this one stands out for emphasizing its connection to existing local commercial and residential functions.
INA Brief
The Shirokane 1-chome Seibu-Naka District project is notable for explicitly pairing a 39-story, 991-unit supply scale with coordination with Shirokane Shopping Street and the introduction of childcare support facilities. Although it is a redevelopment within walking distance of Shirokane-Takanawa Station, it can be understood as a plan that simultaneously renews an established urban district and restructures local living functions. The next point to watch is how much detail will be disclosed about the commercial functions and the low-rise blocks.
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