Brillia Fukazawa Hachome, a newly completed condominium in Tokyo’s Setagaya Ward, has become Japan’s first residential building to achieve the highest-level ZEH-M (Zero Energy House – Mansion) certification upon completion.
Exterior CG rendering courtesy of the developer.
Located a nine-minute walk from Tokyu Den-En-Toshi Line’s Sakura-Shimmachi Station, the three-story reinforced concrete building was constructed on the site of a former kindergarten under a 70-year fixed-term leasehold.
Completed on December 26, 2024, the development integrates advanced insulation and energy-efficient technology to significantly reduce energy consumption while enhancing resident comfort.
All units in Brillia Fukazawa Hachome have achieved insulation performance grade 6, with 15 units—primarily on the second floor—reaching the highest grade 7.
The building reduces annual primary energy consumption by 101% overall (114% per unit) through a combination of high-performance insulation, energy-efficient air conditioning, total heat exchangers, rooftop solar panels, and 'Ene-Farm' fuel cells.
These features contribute to an average annual utility cost savings of approximately ¥111,000 per unit according to the developer.
The property has earned multiple environmental certifications, including:
Selection in the Ministry of Land, Infrastructure, Transport and Tourism’s 2023 Sustainable Building Leading Projects (CO2 Reduction Leading Type)
CASBEE S rank
BELS 5-star rating
Tokyo Metropolitan Government’s Condominium Environmental Performance Display System 3-star rating
Designation as a low-carbon building
Brillia Fukazawa Hachome offers units ranging from 2LDK to 4LDK, with exclusive floor areas between approximately 63 and 134 square meters.
Brillia Fukazawa Hachome sample interior courtesy of R.E. Port News.
Standard features include double floors and ceilings, a ceiling height of 2,450mm, dishwashers, garbage disposals, Fiore Stone kitchen countertops, cupboards, and mist saunas.
In the event of a power outage, residents can access electricity from solar panels and 'Ene-Farm' units. The building’s common areas are equipped with storage batteries to store solar-generated power for emergency use, and V2H (vehicle-to-home) equipment enables electric vehicles to supply power to common area facilities.
YouTube explainer by Elite Power Group in Australia discussing what V2H can do to contribute to stabilizing the natural supply-and-demand fluctuations in the power grid due to usage and weather conditions. The video was originally published in early 2024.
Sales for Brillia Fukazawa Hachome began in May 2024, attracting 310 inquiries and resulting in 21 contracts. Units are priced between ¥107 million and ¥299 million, with most buyers in their 30s and 40s.
Higher-end unit purchasers have shown particular interest in the property’s advanced energy-saving technology, with the completed building further reinforcing the appeal of its ZEH-M design.
Brillia Fukazawa Hachome roof top solar panels, courtesy of R.E. Port News.
The building’s rooftop features 336 solar panels (137kW), with 24 panels allocated to common areas and the remainder distributed among residential units based on size.
These, along with 'Ene-Farm' fuel cells, contribute to the property’s energy self-sufficiency, reinforcing its status as a pioneering model for ZEH-M condominiums in Japan.
Source:
R.E. Port News (Japanese only)
