Cosmos Initia Achieves 37% 'ZEH Level / Energy-Saving Standard' Acquisition Rate! Utilizing NCN's 'Advanced Energy-Saving Design' for Condominium Renovation, Transforming Existing Condos into 'Eco-Friendly, Comfortable Homes'
NCN and Cosmos Initia's joint condominium renovation business achieved an impressive 37% acquisition rate for ZEH-level/energy-saving standard certificates for properties starting construction in FY2025. This initiative provides advanced technical support to decarbonize existing housing and deliver economic value to residents.
📋 Article Processing Timeline
- 📰 Published: April 10, 2026 at 22:00
- 🔍 Collected: April 11, 2026 at 00:23 (2h 23m after Published)
- 🤖 AI Analyzed: April 20, 2026 at 03:54 (219h 30m after Collected)
NCN Co., Ltd. (Chiyoda-ku, Tokyo, President: Ikuo Takusari, hereinafter NCN), a wooden construction platform company, is collaborating as an energy-saving design partner in the renovation condominium business 'INITIA & Renovation' developed by Cosmos Initia Co., Ltd. (Minato-ku, Tokyo, President: Ryotaro Kochi).
We are pleased to announce that the acquisition rate of the 'Housing Energy Efficiency Performance Certificate (ZEH level / Energy Efficiency Standard)' for properties starting construction in fiscal 2025 in the same business has reached approximately 37%, exceeding the initial target of 30%.
■ Background: Challenge to decarbonize existing housing
Currently, energy saving in housing is an unavoidable top priority for realizing carbon neutrality in Japan. According to data from the Ministry of Land, Infrastructure, Transport and Tourism, only 19% of existing homes in Japan meet current energy efficiency standards.
In other words, approximately 80% of domestic housing is in a state of low energy efficiency, where it is 'cold in winter and hot in summer'. Toward a decarbonized society in 2050, raising the performance of not only new constructions but also these vast 'existing homes' has become a major national issue.
*Source: Ministry of Land, Infrastructure, Transport and Tourism 'Future Housing and Building Energy Conservation Measures (4th Report)...'
Against this background, in order to accelerate the spread of ZEH standards and energy efficiency in renovated housing, NCN has participated in a 4-company alliance system with Cosmos Initia Co., Ltd., YKK AP Inc., and u.company Co., Ltd. Specialists in each field are brought together to promote the creation of a system that standardizes the 'ZEH leveling and energy saving of existing condominiums'.
■ Role of NCN
Improving energy efficiency performance in renovations requires advanced specialized knowledge, as there are significant structural limitations for each property compared to new construction. NCN plays the following roles in this collaboration:
1. Precise performance calculation for each unit
We analyze the orientation of windows and insulation status in detail and derive the optimal energy-saving design for that property.
2. Handling properties at 'Renovation Age'
For properties built in the 1990s or condominiums over 20 years old where achieving standards is difficult, we provide technical support to clear ZEH levels and energy-saving standards utilizing cultivated technological capabilities. This makes it possible to provide concrete and economic value to residents, such as reducing utility bills and expanding mortgage tax deductions.
■ Achievement Example
In examples where NCN was involved in energy-saving design, high energy-saving performance has been realized even in properties that have passed a long time since completion.
We are pleased to announce that the acquisition rate of the 'Housing Energy Efficiency Performance Certificate (ZEH level / Energy Efficiency Standard)' for properties starting construction in fiscal 2025 in the same business has reached approximately 37%, exceeding the initial target of 30%.
■ Background: Challenge to decarbonize existing housing
Currently, energy saving in housing is an unavoidable top priority for realizing carbon neutrality in Japan. According to data from the Ministry of Land, Infrastructure, Transport and Tourism, only 19% of existing homes in Japan meet current energy efficiency standards.
In other words, approximately 80% of domestic housing is in a state of low energy efficiency, where it is 'cold in winter and hot in summer'. Toward a decarbonized society in 2050, raising the performance of not only new constructions but also these vast 'existing homes' has become a major national issue.
*Source: Ministry of Land, Infrastructure, Transport and Tourism 'Future Housing and Building Energy Conservation Measures (4th Report)...'
Against this background, in order to accelerate the spread of ZEH standards and energy efficiency in renovated housing, NCN has participated in a 4-company alliance system with Cosmos Initia Co., Ltd., YKK AP Inc., and u.company Co., Ltd. Specialists in each field are brought together to promote the creation of a system that standardizes the 'ZEH leveling and energy saving of existing condominiums'.
■ Role of NCN
Improving energy efficiency performance in renovations requires advanced specialized knowledge, as there are significant structural limitations for each property compared to new construction. NCN plays the following roles in this collaboration:
1. Precise performance calculation for each unit
We analyze the orientation of windows and insulation status in detail and derive the optimal energy-saving design for that property.
2. Handling properties at 'Renovation Age'
For properties built in the 1990s or condominiums over 20 years old where achieving standards is difficult, we provide technical support to clear ZEH levels and energy-saving standards utilizing cultivated technological capabilities. This makes it possible to provide concrete and economic value to residents, such as reducing utility bills and expanding mortgage tax deductions.
■ Achievement Example
In examples where NCN was involved in energy-saving design, high energy-saving performance has been realized even in properties that have passed a long time since completion.