Toronomon KT Building Redevelopment Project Initiated with New Condominium Union Formation

Redevelopment Initiative for Toronomon KT Building

Nittetsu Kowa Real Estate Co., Ltd., headquartered in Minato, Tokyo, has recently announced the establishment of a new condominium redevelopment union for the Toronomon KT Building project. This initiative has received the necessary approval from the Minato City government and marks a significant step in the renovation of this aging structure.

Background of the Redevelopment

Originally completed in 1979, the Toronomon KT Building includes a mixed-use structure composed of 24 residential units and a commercial office space. Located just one minute from the Kamiyacho Station on the Tokyo Metro Hibiya Line, the building consists of ten floors. However, a seismic evaluation conducted in 2013 indicated a high risk of collapse, prompting a serious reconsideration of the building's future.

As the structure began to show signs of deterioration, including issues of roof leaks and aging water supply and drainage systems, the financial strain of maintaining the building through reserve fund insufficiencies made large-scale renovations and costly seismic reinforcements challenging. Given these complexities, a decision was made in December 2024 to move forward with a redevelopment plan through a comprehensive decision made during a general meeting of all stakeholders. Thus, the condominium redevelopment union was officially formed.

Unique Aspects of This Project

Due to the limited and irregular dimensions of the property, formulating a construction plan that aligns with current regulations was becoming increasingly difficult and costly, making consensus among interested parties hard to achieve. As a solution, the stakeholders explored the option of a joint redevelopment, incorporating adjacent land into the project. This strategic decision significantly improved both the design feasibility and economic viability of the new construction, which ultimately garnered agreement from both the current property owners and those of the neighboring land.

Projected Appearance Post Redevelopment

Project Overview

- Location: 5-21-3, 5-21-4 Toronomon, Minato City, Tokyo
- Access: 1-minute walk from Kamiyacho Station (Tokyo Metro Hibiya Line)
- Redevelopment Entity: Toronomon KT Building Condominium Redevelopment Union
- Methodology: Established under the Law for the Facilitation of Condominium Redevelopment
- Participants: Nittetsu Kowa Real Estate Co., Ltd.
- Consultant: Former Architectural Management Co., Ltd.

Current vs. Post Redevelopment Building Comparison

Building Name	Completion Date	Site Area	Total Floor Area	Structure	Height	Total Units
----	-----	---	----	-----	--	------
Toronomon KT Building	May 1979	Approximately 297 m²	Approximately 1,824 m²	SRC, 10 floors	Residential: 25 units (24 residential, 1 commercial)

Redeveloped Building	March 2029 (Planned)	Approximately 368 m²	Approximately 2,826 m²	RC, 14 floors	Residential: 45 units (All residential)

Nittetsu Kowa Real Estate's Commitment to Redevelopment

Throughout the years, Nittetsu Kowa Real Estate has utilized various methods to successfully carry out 31 redevelopment projects. Since pioneering the first entirely residential redevelopment project in 1986, the company has consistently led the industry with initiatives like establishing specialized redevelopment departments and enhancing consulting frameworks. By engaging with changing social circumstances and ongoing dialogues with managing associations, the company continues to innovate and adapt its business methodologies, striving to maintain its position as a leading force in the condominium redevelopment sector.