"REFORMA by GHOUSE" Officially Launched | Reconstructing the Asset Value of Used Homes to "New Construction Standards"
G-HOUSE Co., Ltd. has officially launched "REFORMA by GHOUSE," a renovation business that reconstructs the asset value of used homes to "new construction standards" by integrating new home construction know-how with the expertise of a skilled renovation team. It aims to improve long-term value by redesigning even "invisible parts" like insulation, piping, and wiring.
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- 📰 Published: May 2, 2026 at 01:44
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Custom home builder G-HOUSE Co., Ltd. (Location: Asahi-ku, Osaka-shi, Osaka; Representative Director and President: Akihisa Cho) has officially launched a new renovation business that reconstructs the asset value of used condominiums and houses to "new construction standards," by integrating the design and construction know-how cultivated in new home construction with the expertise of a skilled team with over 20 years of experience in the renovation industry.
Our renovation is characterized by not only changing equipment and layouts or refreshing interiors, but also by redesigning the entire living space to include "invisible parts" such as improving insulation performance and renewing lifelines like piping and wiring. Based on our track record of over 100 custom homes annually, we provide renovations that achieve a high level of "performance," "design," and "cost-effectiveness."
A 38-year-old space achieves performance surpassing new construction – Model room completed in Miyakojima-ku, Osaka
*Adopting "GRAFTEKT Kitchen" as a standard specification for the first time in Japan for our renovation business.
With the latest equipment and sophisticated design, the space has dramatically transformed. Centered around the popular "GRAFTEKT" kitchen*, everything from invisible insulation to piping and wiring has been fully updated.
It is a model room where you can thoroughly experience beauty and peace of mind, as well as the practicality of household chores flow and storage, for the "real life" of tomorrow.
[Information on REFORMA by GHOUSE Model Room Completion Tour]
Address: Tomobuchi-cho, Miyakojima-ku, Osaka-shi, Osaka
●By appointment only: 10:00 AM - 5:00 PM
●Other inquiries: 06-6954-0648
Reserve here
Background: Changing "Housing Choices" Due to Soaring Prices of New Condominiums and Houses
In recent years, due to rising construction material costs and labor expenses, prices of new condominiums and detached houses have continued to rise. Meanwhile, the option of utilizing used properties, improving their performance, and living in them longer is gaining attention.
However, many conventional renovations stop at superficial improvements, often failing to address the fundamental performance and durability of homes, such as insulation within walls or equipment piping under floors.
Against this backdrop, G-HOUSE launched this business with the conviction to "redesign existing homes from the same perspective as new custom-built homes."
Renovation that Rebuilds from "Invisible Parts"
The company's renovation focuses on re-evaluating the fundamental performance of a house, rather than just superficial design and layout improvements.
Key features are as follows:
Optimization of indoor environment through improved insulation performance
Ensuring long-term security through updated piping and infrastructure
Review of structure and materials with durability in mind
Layout redesign and flow planning to enhance household efficiency
Sophisticated and high-quality space design through standard adoption of high-grade equipment and building materials
Thorough cost reduction through SNS marketing and unique systems, and realization of a complete fixed-price system without additional costs
This transforms the home into one that combines comfort and functionality.
Providing "Homes whose Value Continues for 20 and 30 Years"
G-HOUSE positions renovation not merely as repair work, but as "an act of redefining the value of a home."
Without being swayed by immediate design or initial costs, we rigorously consider long-term comfort, durability, and future maintenance costs, aiming to realize homes where residents can genuinely feel "I'm glad I chose this house" even after 20 or 30 years.
Representative Comment
Representative Director and President Akihisa Cho
"Previous renovations were mainly about enhancing 'superficial beauty.' However, we are convinced that the true intrinsic value of a home resides in 'invisible parts' such as insulation, durability, and infrastructure renewal.
'REFORMA' aims to maximize the potential of used homes by utilizing the advanced technology and design philosophy cultivated in new home construction.
Our mission is not merely to repair buildings. It is to fundamentally elevate the quality of life for residents and reconstruct homes into 'assets that continue to generate value for a long time,' not just mere consumption."
Applicable Properties
Condominiums and detached houses
Main Offerings
・Skeleton renovation
・Performance improvement renovation (renewal of lifelines such as insulation and piping)
・Layout change and flow planning
・Refreshment of equipment and interior
Details
Please inquire via our official Instagram or contact our staff.
About REFORMA by GHOUSE
Our mission. It is to embody G-HOUSE's corporate philosophy: "Freedom and richness of life for everyone." We promise to reconstruct your ideal, beautiful life (REFORMA) with "the best quality and sophisticated design," which customers aspire to, at "a convincing and appropriate price" realized through smart systems.
We genuinely want to change this opaque renovation industry.
Compared to new construction, the renovation industry is opaque.
Our renovation is characterized by not only changing equipment and layouts or refreshing interiors, but also by redesigning the entire living space to include "invisible parts" such as improving insulation performance and renewing lifelines like piping and wiring. Based on our track record of over 100 custom homes annually, we provide renovations that achieve a high level of "performance," "design," and "cost-effectiveness."
A 38-year-old space achieves performance surpassing new construction – Model room completed in Miyakojima-ku, Osaka
*Adopting "GRAFTEKT Kitchen" as a standard specification for the first time in Japan for our renovation business.
With the latest equipment and sophisticated design, the space has dramatically transformed. Centered around the popular "GRAFTEKT" kitchen*, everything from invisible insulation to piping and wiring has been fully updated.
It is a model room where you can thoroughly experience beauty and peace of mind, as well as the practicality of household chores flow and storage, for the "real life" of tomorrow.
[Information on REFORMA by GHOUSE Model Room Completion Tour]
Address: Tomobuchi-cho, Miyakojima-ku, Osaka-shi, Osaka
●By appointment only: 10:00 AM - 5:00 PM
●Other inquiries: 06-6954-0648
Reserve here
Background: Changing "Housing Choices" Due to Soaring Prices of New Condominiums and Houses
In recent years, due to rising construction material costs and labor expenses, prices of new condominiums and detached houses have continued to rise. Meanwhile, the option of utilizing used properties, improving their performance, and living in them longer is gaining attention.
However, many conventional renovations stop at superficial improvements, often failing to address the fundamental performance and durability of homes, such as insulation within walls or equipment piping under floors.
Against this backdrop, G-HOUSE launched this business with the conviction to "redesign existing homes from the same perspective as new custom-built homes."
Renovation that Rebuilds from "Invisible Parts"
The company's renovation focuses on re-evaluating the fundamental performance of a house, rather than just superficial design and layout improvements.
Key features are as follows:
Optimization of indoor environment through improved insulation performance
Ensuring long-term security through updated piping and infrastructure
Review of structure and materials with durability in mind
Layout redesign and flow planning to enhance household efficiency
Sophisticated and high-quality space design through standard adoption of high-grade equipment and building materials
Thorough cost reduction through SNS marketing and unique systems, and realization of a complete fixed-price system without additional costs
This transforms the home into one that combines comfort and functionality.
Providing "Homes whose Value Continues for 20 and 30 Years"
G-HOUSE positions renovation not merely as repair work, but as "an act of redefining the value of a home."
Without being swayed by immediate design or initial costs, we rigorously consider long-term comfort, durability, and future maintenance costs, aiming to realize homes where residents can genuinely feel "I'm glad I chose this house" even after 20 or 30 years.
Representative Comment
Representative Director and President Akihisa Cho
"Previous renovations were mainly about enhancing 'superficial beauty.' However, we are convinced that the true intrinsic value of a home resides in 'invisible parts' such as insulation, durability, and infrastructure renewal.
'REFORMA' aims to maximize the potential of used homes by utilizing the advanced technology and design philosophy cultivated in new home construction.
Our mission is not merely to repair buildings. It is to fundamentally elevate the quality of life for residents and reconstruct homes into 'assets that continue to generate value for a long time,' not just mere consumption."
Applicable Properties
Condominiums and detached houses
Main Offerings
・Skeleton renovation
・Performance improvement renovation (renewal of lifelines such as insulation and piping)
・Layout change and flow planning
・Refreshment of equipment and interior
Details
Please inquire via our official Instagram or contact our staff.
About REFORMA by GHOUSE
Our mission. It is to embody G-HOUSE's corporate philosophy: "Freedom and richness of life for everyone." We promise to reconstruct your ideal, beautiful life (REFORMA) with "the best quality and sophisticated design," which customers aspire to, at "a convincing and appropriate price" realized through smart systems.
We genuinely want to change this opaque renovation industry.
Compared to new construction, the renovation industry is opaque.