Ecology & Culture

ZEH Condominium

Takara Leben is committed to supplying environmentally friendly ZEH condominiums.

• *1 ZEH (Net Zero Energy House): A house that simultaneously achieves a "comfortable indoor environment" and a "net annual residential energy consumption of approximately zero or less."

ZEH Condominium "LEBEN TOYAMA JINZUHONMACHI ONE TOWER"

LEBEN TOYAMA JINZUHONMACHI ONE TOWER (Toyama City, Toyama Prefecture) by Takara Leben is insulated not only on the exterior walls and folded parts but also on the ceiling surface to ensure the high insulation performance required for a ZEH*1 condominium, and metal sashes and double-layer double glazing Low-E glass are used for openings.
The condominium has obtained Grade 4 in the "heat insulation performance grade" of energy conservation measures*2 (whereas ordinary condominiums are rated Grade 3), and Grade 5 in the "primary energy consumption grade."
In addition, the building has received the highest rating of 5 stars (out of 5 scale) under the BELS, an energy efficiency rating system that calculates the primary energy consumption of a house.

• *2 Energy measure grade: Established by the Ministry of Land, Infrastructure, Transport and Tourism as a grade that expresses energy-saving performance.

ZEH Condominium "LEBEN TOYAMA NISHICHO RESONACIA"

LEBEN TOYAMA NISHICHO RESONACIA is the first ZEH (Net Zero Energy House) condominium in Toyama Prefecture. It has obtained the highest rating of 5 stars under the BELS, Energy Saving Performance Indication System, which calculates the primary energy consumption of a house and assigns a 5-star rating.

"L.Biz NIHOMBASHI" Acquired CASBEE Certification "A rank"

At L.Biz NIHOMBASHI (Chuo-ku, Tokyo), an office building developed by MIRARTH HOLDINGS and its Group company, Takara Leben, we are working on heat load control of the building envelope to achieve environmental performance for the realization of a decarbonized society, in line with the Group policy of "providing environmentally conscious buildings and spaces” and working to improve the indoor environment by controlling room temperature and lighting. In addition, to encourage the use of natural energy such as sunlight, the building has a high floor height and curtain walls*1. Also, to conserve water resources, which are non-renewable resources, we are working to reduce water consumption through water-saving devices.

These environmental performances were highly evaluated, and the property was the first in our series of office buildings to receive the "A" rank in CASBEE*2 - Building (New Construction), a comprehensive assessment system for building environmental performance.

• *1 Curtain wall: A lightweight exterior wall that is installed to reduce the load on the building's structure by ensuring wind pressure from the outside and watertightness.
• *2 CASBEE: A system for evaluating and rating the environmental performance of buildings. It comprehensively evaluates the quality of buildings, including environmental considerations such as energy conservation and the use of materials and equipment with low environmental impact, as well as indoor comfort and consideration for the landscape.

Noda City Nakasato Logistics Facility Receives 5-Star BELS Certification

Noda City Nakasato Logistics Facility (Noda City, Chiba Prefecture), the first logistics facility built by Takara Leben in March 2022, has a policy of "developing environmentally friendly properties" and has a solar power generation system on the roof. The energy generated is used for a portion of the facility's electricity consumption. In recognition of these environmentally friendly efforts, the facility has received the highest rating of 5 stars under the BELS (Building Energy Efficiency and Low Energy Performance Labeling System).

Environmental Initiatives through ISO 14001 Certification

Recognizing the need to promote environmental friendliness in the general construction industry, Leben Home Build acquired ISO 14001 certification, the international standard for environmental management systems, in 2008. We continue to operate our environmental management system by setting and regularly evaluating targets for reducing industrial waste resulting from our production activities at work sites.

• Separate trash at construction sites and promote recycling

• Separate and reduce waste at each business site.

• Regular cleaning outside the company by employees

• Propose plans and designs for energy conservation

Promotion of LEDs

For the purpose of effective use of resources and reduction of running costs, we are promoting the replacement of lighting installed in managed properties with LED lighting, which has a longer life and consumes less power.

Environmental Initiatives in Office Buildings

Takara PAG Real Estate Advisory, which is entrusted with asset management of Takara Leben Real Estate Investment Corporation, is promoting environmentally friendly initiatives to reduce environmental impact and improve the indoor environment.

To reduce water consumption in office buildings, we use rainwater for toilet flushing water, conduct awareness raising activities for tenants, and install "water-saving panels" to reduce the amount of water used in the water supply.
In addition, by displaying educational posters in common areas and tenants' private areas, we are promoting the reduction of greenhouse gas emissions and waste by fostering awareness of electricity conservation and the 3Rs.

Regular Cleaning Using Environmentally Friendly Detergents

As part of its commitment to environmental friendliness in condominium management services, Leben Community has officially introduced biodegradable plant-derived surfactants since fiscal year 2022.

Although vegetable-based detergents had been introduced on a trial basis at some properties since FY21, the vegetable-based detergents at that time had less cleaning power than conventional detergents and did not meet the quality required for the services. After a number of trials and errors, we have officially introduced a detergent that does not fall under the PRTR system* and that takes environmental recycling into consideration. Currently, the detergent is used at sites where cleaning and janitorial staff belonging to Leben Community work.

• *PRTR system: A system under which business operators are required to monitor and report to the government the amount of chemical substances released into the environment (air, water, and soil) from their business sites and the amount transferred out of their business sites in waste materials, which may be harmful to human health or the ecosystem.