Tackling the Era of 9 Million Vacant Homes: SA Co., Ltd. Launches 'SDGs Special Page' to Revitalize Problematic Real Estate!
SA Co., Ltd. has launched a dedicated SDGs page to address Japan's 9 million vacant homes by revitalizing 'problematic' real estate with complex ownership issues. The company regenerates approximately 60,000 square meters of property annually, providing expertise to overcome the 'triple block' of institutional, legal, and interpersonal barriers. Led by CEO and Real Estate Appraiser Yasuhiro Sakai, the company aims to promote effective land use and a sustainable society through six concrete actions.
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- 📰 Published: May 29, 2026 at 10:10
- 🔍 Collected: June 1, 2026 at 02:22 (64h 12m after Published)
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SA Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; CEO/Real Estate Appraiser: Yasuhiro Sakai; hereinafter 'the Company'), which operates a business revitalizing 'problematic real estate' that is difficult to utilize due to low liquidity, launched a new corporate page today, Friday, May 29, 2026, covering the company's key CSR/SDGs issues and specific initiatives.
With the number of vacant houses nationwide reaching a record high of 9.02 million (according to the 2023 Housing and Land Survey), the company has centered its business on 'making the most effective use of limited national land,' regenerating approximately 60,000 square meters of real estate annually (equivalent to 1.3 Tokyo Domes). This page visualizes 'six concrete actions' to ensure SDGs are not just slogans, and the social impact they bring.
The true cause of the increasing number of vacant houses is not the real estate itself.
Shared ownership, properties that cannot be rebuilt, leased land, and poorly managed vacant houses. These are often left unattended due to opaque rights and pricing, but as time passes, they develop into serious social issues that distort local public safety, scenery, and land use.
CEO Sakai, who is also a real estate appraiser, receives 10,000 consultations annually and is convinced that 'before a vacant house is created, there is a silent SOS where decision-making stops, and there exists a 'triple block' of systems, laws, and human relationships.'
Institutional block: When shared by multiple people such as siblings, one person's opposition makes sale or repair impossible.
Legal block: Legal risks such as inability to rebuild or illegal extensions accumulate, turning it into a house no one can handle.
Human relationship block: Rights holders multiply through repeated inheritance. Contact is lost, leading to disputes among relatives.
Since its founding, the company has leveraged its track record of over 600 sales per year to untangle these complex rights and return real estate to assets that circulate in the region again. We built this page to convey the current status and future vision of our purpose: 'Turning society's 'problematic' into 'value' for society.'
■ Case study: Turning a vacant house left unattended by relatives for 10 years into a circulating asset in a few months
Many of the consultations received by the company are cases that are difficult for general real estate companies to handle, such as 'I inherited it but cannot contact other co-owners' or 'It cannot be sold because it cannot be rebuilt.'
For example, in the case of a poorly managed vacant house that had been left unattended for 10 years due to conflicts between relatives, the company untangled the complex shared ownership rights and conducted a direct purchase based on appropriate real estate appraisal. Afterward, by renovating and connecting it to new residents, we achieved both the maintenance of local community safety and the re-circulation of assets.
■ From real estate revitalization to human resource development. 'Six actions' promoted by the SA Group
1. Solving social issues through real estate revitalization
[ACTION 01] Elimination of 'poorly managed real estate': Re-circulating low-liquidity real estate such as shared ownership, non-rebuildable properties, leased land, and vacant houses to the market.
[ACTION 02] Reducing owner burden and exit strategies: Eliminating psychological and economic stagnation of owners through 24/7 consultation counters and direct purchases.
[ACTION 03] Expert collaboration and 'market visualization': One-stop collaboration with professional networks centered on real estate appraisers. Promoting fairness in transactions by publishing a 'Shared Real Estate Chaos Map.'
2. Contribution to creating a society that is easy to work in (human resource development/environmental improvement)
[ACTION 04] Promotion of real estate education and development of specialized personnel: Developing registration training business for real estate notaries by a group company (SA Service Co., Ltd.). Providing online learning opportunities to support the sound development of the industry.
[ACTION 05] Harassment prevention and workplace environment construction: Developing 'Employment Clean Planner' qualification business through the Crea Human Resource Development Association. Building a foundation to improve harassment literacy and prevent labor troubles in advance.
3. Collaboration with society and sharing of knowledge
[ACTION 06] Community support and environmental conservation connecting to the next generation: Contributing to marine environmental conservation through sponsorship of the J.League 'Kawasaki Frontale' and support for the 'Future and Coral Project' in Onna Village, Okinawa.
■ SDGs goals and materiality correspondence list
The social impact created by the company through its main business and group businesses is as follows.
■ Message from Yasuhiro Sakai, Representative Director/Real Estate Appraiser
'What we are aiming for is not sustainability displayed as decoration. The business itself, which revives approximately 60,000 square meters of 'unusable national land' into 'living national land' annually, is our CSR and the practice of SDGs. In 2023, we established the Crea Human Resource Development Association, and in 2025, we brought Adex Research and Consulting Co., Ltd. into the group, further strengthening our real estate appraisal system. We will continue to contribute to the realization of a sustainable society by accumulating three axes: real estate revitalization, circulation of regional resources, and creating an environment where people can work with peace of mind.'
■ About SA Co., Ltd.
A specialized company for problematic real estate that handles 10,000 consultations and 500 sales results annually. We handle everything from shared ownership, non-rebuildable properties, leased land, vacant houses, and inheritance real estate organization to purchase and appraisal.
With the number of vacant houses nationwide reaching a record high of 9.02 million (according to the 2023 Housing and Land Survey), the company has centered its business on 'making the most effective use of limited national land,' regenerating approximately 60,000 square meters of real estate annually (equivalent to 1.3 Tokyo Domes). This page visualizes 'six concrete actions' to ensure SDGs are not just slogans, and the social impact they bring.
The true cause of the increasing number of vacant houses is not the real estate itself.
Shared ownership, properties that cannot be rebuilt, leased land, and poorly managed vacant houses. These are often left unattended due to opaque rights and pricing, but as time passes, they develop into serious social issues that distort local public safety, scenery, and land use.
CEO Sakai, who is also a real estate appraiser, receives 10,000 consultations annually and is convinced that 'before a vacant house is created, there is a silent SOS where decision-making stops, and there exists a 'triple block' of systems, laws, and human relationships.'
Institutional block: When shared by multiple people such as siblings, one person's opposition makes sale or repair impossible.
Legal block: Legal risks such as inability to rebuild or illegal extensions accumulate, turning it into a house no one can handle.
Human relationship block: Rights holders multiply through repeated inheritance. Contact is lost, leading to disputes among relatives.
Since its founding, the company has leveraged its track record of over 600 sales per year to untangle these complex rights and return real estate to assets that circulate in the region again. We built this page to convey the current status and future vision of our purpose: 'Turning society's 'problematic' into 'value' for society.'
■ Case study: Turning a vacant house left unattended by relatives for 10 years into a circulating asset in a few months
Many of the consultations received by the company are cases that are difficult for general real estate companies to handle, such as 'I inherited it but cannot contact other co-owners' or 'It cannot be sold because it cannot be rebuilt.'
For example, in the case of a poorly managed vacant house that had been left unattended for 10 years due to conflicts between relatives, the company untangled the complex shared ownership rights and conducted a direct purchase based on appropriate real estate appraisal. Afterward, by renovating and connecting it to new residents, we achieved both the maintenance of local community safety and the re-circulation of assets.
■ From real estate revitalization to human resource development. 'Six actions' promoted by the SA Group
1. Solving social issues through real estate revitalization
[ACTION 01] Elimination of 'poorly managed real estate': Re-circulating low-liquidity real estate such as shared ownership, non-rebuildable properties, leased land, and vacant houses to the market.
[ACTION 02] Reducing owner burden and exit strategies: Eliminating psychological and economic stagnation of owners through 24/7 consultation counters and direct purchases.
[ACTION 03] Expert collaboration and 'market visualization': One-stop collaboration with professional networks centered on real estate appraisers. Promoting fairness in transactions by publishing a 'Shared Real Estate Chaos Map.'
2. Contribution to creating a society that is easy to work in (human resource development/environmental improvement)
[ACTION 04] Promotion of real estate education and development of specialized personnel: Developing registration training business for real estate notaries by a group company (SA Service Co., Ltd.). Providing online learning opportunities to support the sound development of the industry.
[ACTION 05] Harassment prevention and workplace environment construction: Developing 'Employment Clean Planner' qualification business through the Crea Human Resource Development Association. Building a foundation to improve harassment literacy and prevent labor troubles in advance.
3. Collaboration with society and sharing of knowledge
[ACTION 06] Community support and environmental conservation connecting to the next generation: Contributing to marine environmental conservation through sponsorship of the J.League 'Kawasaki Frontale' and support for the 'Future and Coral Project' in Onna Village, Okinawa.
■ SDGs goals and materiality correspondence list
The social impact created by the company through its main business and group businesses is as follows.
■ Message from Yasuhiro Sakai, Representative Director/Real Estate Appraiser
'What we are aiming for is not sustainability displayed as decoration. The business itself, which revives approximately 60,000 square meters of 'unusable national land' into 'living national land' annually, is our CSR and the practice of SDGs. In 2023, we established the Crea Human Resource Development Association, and in 2025, we brought Adex Research and Consulting Co., Ltd. into the group, further strengthening our real estate appraisal system. We will continue to contribute to the realization of a sustainable society by accumulating three axes: real estate revitalization, circulation of regional resources, and creating an environment where people can work with peace of mind.'
■ About SA Co., Ltd.
A specialized company for problematic real estate that handles 10,000 consultations and 500 sales results annually. We handle everything from shared ownership, non-rebuildable properties, leased land, vacant houses, and inheritance real estate organization to purchase and appraisal.
FAQ
What is the '9 million vacant homes' issue in Japan?
It refers to the record-high number of abandoned properties in Japan, caused by complex inheritance issues, legal restrictions on rebuilding, and lack of consensus among heirs.