MIRARTH Holdings Group Receives Double Award at the 16th Excellent Project Awards by Zenjukyo
MIRARTH Holdings Group companies Takara Leben and Leben Home Build received double awards at the 16th Excellent Project Awards hosted by the National Housing Industry Association (Zenjukyo) for "Nebel Yokohama Kannai" and "Leben Platz Nerima Kasugacho II." This recognition highlights their originality and significant contribution to the housing industry.
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- 📰 Published: May 1, 2026 at 23:00
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MIRARTH Holdings Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo / Representative Director: Kazuichi Shimada) announces that its group company, Takara Leben Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo / Representative Director: Shoichi Akizawa), and Leben Home Build Co., Ltd. (Headquarters: Chuo-ku, Tokyo / Representative Director: Tadayuki Hara), a group company, have simultaneously received awards for two properties at the "16th Excellent Project Awards" hosted by the National Housing Industry Association (Zenjukyo). "Nebel Yokohama Kannai" was awarded in the mid-to-high-rise condominium division, and "Leben Platz Nerima Kasugacho II," developed by Leben Home Build Co., Ltd., was awarded in the detached housing division.
▲Nebel Yokohama Kannai ▲Leben Platz Nerima Kasugacho II
What are the "Excellent Project Awards"?
The "Excellent Project Awards" is a system organized by the National Housing Industry Association to recognize excellent projects (housing and real estate) that demonstrate originality and make significant contributions to the housing and real estate industry. It consists of seven divisions and aims to promote the supply of quality housing and the improvement of living environments by member companies. The "16th Excellent Project Awards" were announced on April 16, and our group received awards for two properties: "Nebel Yokohama Kannai" and "Leben Platz Nerima Kasugacho II."
Award-winning Properties and Evaluation Points
"Nebel Yokohama Kannai"
Located in the central Yokohama area of "Kannai," this property contributes to improving the cityscape with its high-quality exterior combining textured tiles and glass. With multi-layered planning ranging from 25㎡ to 60㎡, it maximizes livability in compact spaces. In terms of environmental aspects, it is adapted to a decarbonized society by achieving insulation performance level 4 and introducing high-efficiency equipment. Furthermore, disaster prevention designs such as tide walls are standardized, making it a property that integrates environment, disaster prevention, and comfort.
"Leben Platz Nerima Kasugacho II"
This is a 13-lot town development project adjacent to the greenery of a quiet residential area in Kasugacho, Nerima Ward, Tokyo. All lots secure over 100㎡ of land, and with diverse plans centered on 4LDK layouts and the utilization of semi-outdoor spaces, high livability has been achieved. In terms of performance, it has achieved high environmental specifications with insulation performance level 5 and primary energy consumption level 6. This sustainable detached housing balances environmental load reduction and household contribution through effective methods such as improving external envelope performance and adopting high-efficiency equipment, without relying on excessive facilities.
Our group will continue to design homes that combine comfort and environmental performance, based on our long-term vision, "Be a treasure for the local community."
Company Profile (MIRARTH Holdings)
Trade Name: MIRARTH Holdings Co., Ltd.
Representative: Kazuichi Shimada, Representative Director
Location: Tekko Building 16F, 1-8-2 Marunouchi, Chiyoda-ku, Tokyo 100-0005
Established: September 1972
Business Activities: Management of group companies, etc.
Capital: 9,056 million JPY
URL: https://mirarth.co.jp
Company Profile (Takara Leben)
Trade Name: Takara Leben Co., Ltd.
Representative: Shoichi Akizawa, Representative Director
Location: 1-8-2 Marunouchi, Chiyoda-ku, Tokyo 100-0005
Established: August 1989
Business Activities: Planning, development, and sales of new condominiums, real estate securitization business, rental business, distribution business.
Capital: 400 million JPY
URL: https://www.leben.co.jp/
Company Profile (Leben Home Build)
Trade Name: Leben Home Build Co., Ltd.
Representative: Tadayuki Hara, Representative Director
Location: Kinsan Building 6F, 8F, 4-1-21 Nihonbashi Muromachi, Chuo-ku, Tokyo 103-0022
Established: July 1987
Business Activities: General construction (building work), real estate business.
Capital: 200 million JPY
URL: https://leben-hb.co.jp/
MIRAI for EARTH Project Logo
MIRAI for EARTH Project
MIRARTH Holdings transitioned to a holding company system and changed its trade name in October 2022. Simultaneously, it formulated its purpose: "Designing a sustainable environment to make the future of people and the earth happy," and has been working towards becoming a future environmental design company. In October 2024, MIRARTH Holdings celebrated its second anniversary, and to further accelerate the understanding and penetration of its purpose, it is implementing the "MIRAI for EARTH" project.
Site URL: https://mirarth.co.jp/corporate/mirai-for-earth/
▲Nebel Yokohama Kannai ▲Leben Platz Nerima Kasugacho II
What are the "Excellent Project Awards"?
The "Excellent Project Awards" is a system organized by the National Housing Industry Association to recognize excellent projects (housing and real estate) that demonstrate originality and make significant contributions to the housing and real estate industry. It consists of seven divisions and aims to promote the supply of quality housing and the improvement of living environments by member companies. The "16th Excellent Project Awards" were announced on April 16, and our group received awards for two properties: "Nebel Yokohama Kannai" and "Leben Platz Nerima Kasugacho II."
Award-winning Properties and Evaluation Points
"Nebel Yokohama Kannai"
Located in the central Yokohama area of "Kannai," this property contributes to improving the cityscape with its high-quality exterior combining textured tiles and glass. With multi-layered planning ranging from 25㎡ to 60㎡, it maximizes livability in compact spaces. In terms of environmental aspects, it is adapted to a decarbonized society by achieving insulation performance level 4 and introducing high-efficiency equipment. Furthermore, disaster prevention designs such as tide walls are standardized, making it a property that integrates environment, disaster prevention, and comfort.
"Leben Platz Nerima Kasugacho II"
This is a 13-lot town development project adjacent to the greenery of a quiet residential area in Kasugacho, Nerima Ward, Tokyo. All lots secure over 100㎡ of land, and with diverse plans centered on 4LDK layouts and the utilization of semi-outdoor spaces, high livability has been achieved. In terms of performance, it has achieved high environmental specifications with insulation performance level 5 and primary energy consumption level 6. This sustainable detached housing balances environmental load reduction and household contribution through effective methods such as improving external envelope performance and adopting high-efficiency equipment, without relying on excessive facilities.
Our group will continue to design homes that combine comfort and environmental performance, based on our long-term vision, "Be a treasure for the local community."
Company Profile (MIRARTH Holdings)
Trade Name: MIRARTH Holdings Co., Ltd.
Representative: Kazuichi Shimada, Representative Director
Location: Tekko Building 16F, 1-8-2 Marunouchi, Chiyoda-ku, Tokyo 100-0005
Established: September 1972
Business Activities: Management of group companies, etc.
Capital: 9,056 million JPY
URL: https://mirarth.co.jp
Company Profile (Takara Leben)
Trade Name: Takara Leben Co., Ltd.
Representative: Shoichi Akizawa, Representative Director
Location: 1-8-2 Marunouchi, Chiyoda-ku, Tokyo 100-0005
Established: August 1989
Business Activities: Planning, development, and sales of new condominiums, real estate securitization business, rental business, distribution business.
Capital: 400 million JPY
URL: https://www.leben.co.jp/
Company Profile (Leben Home Build)
Trade Name: Leben Home Build Co., Ltd.
Representative: Tadayuki Hara, Representative Director
Location: Kinsan Building 6F, 8F, 4-1-21 Nihonbashi Muromachi, Chuo-ku, Tokyo 103-0022
Established: July 1987
Business Activities: General construction (building work), real estate business.
Capital: 200 million JPY
URL: https://leben-hb.co.jp/
MIRAI for EARTH Project Logo
MIRAI for EARTH Project
MIRARTH Holdings transitioned to a holding company system and changed its trade name in October 2022. Simultaneously, it formulated its purpose: "Designing a sustainable environment to make the future of people and the earth happy," and has been working towards becoming a future environmental design company. In October 2024, MIRARTH Holdings celebrated its second anniversary, and to further accelerate the understanding and penetration of its purpose, it is implementing the "MIRAI for EARTH" project.
Site URL: https://mirarth.co.jp/corporate/mirai-for-earth/