【Achieved 30 Million Population Coverage!】Crassone, a Deconstruction Tech Company, Designated as a Support Organization for Managing and Utilizing Vacant Houses in Fukuoka's Kitakyushu City

Crassone Inc. (Aichi, Nagoya City, CEO: Teppei Kawaguchi), which operates the deconstruction work DX platform 'Crassone,' has been designated as a 'Support Organization for Managing and Utilizing Vacant Houses' under the revised Special Measures Law for the Promotion of Measures for Vacant Houses, which came into effect on December 13, 2023. Starting activities on April 14 (Tue), they will strengthen support for citizens and vacant house owners through public-private partnerships to address the nationwide social issue of vacant houses. As of June 12, the number of municipalities with cooperation agreements or designations as support organizations for managing and utilizing vacant houses has reached 216, covering a total population of over 30 million, with a population coverage rate of 24.3% (Note 1).

Widening Municipal Cooperation Nationwide, Population Coverage Rate Reaches 24.3%

Crassone has been providing services such as 'Sumai no Shukatsu Navi' and 'Deconstruction Cost Simulator' for vacant house owners, as well as collaborative awareness activities and consultation window support in cooperation with municipalities. The number of cooperating municipalities has expanded from 25 in fiscal 2021 to 216 currently. The population of cooperating municipalities has increased from approximately 4.5 million to approximately 30.32 million, which is about 24.3% of Japan's total population (124,885,175 people), covering about one in every four people nationwide.

Designation of 'Support Organizations for Managing and Utilizing Vacant Houses' Progresses to Strengthen On-Site Vacant House Measures

In recent years, addressing vacant house issues has been positioned as one of the country's important policies. The budget for vacant house measures has been increased to 7.9 billion yen in fiscal 2024, 8.8 billion yen in fiscal 2025, and 11.3 billion yen in fiscal 2026, demonstrating the country's commitment to strengthening vacant house measures. On the other hand, a survey conducted by the Japan Vacant House Measures Consortium revealed that many municipalities cite a lack of personnel and budget as challenges, indicating that while systems are being established, there are difficulties in building the necessary operational capacity. Therefore, the importance of public-private partnerships that leverage the expertise of private sector companies to promote vacant house measures has been increasing in recent years.

Thus, the revised Special Measures Law for the Promotion of Measures for Vacant Houses, which came into effect in 2023, established a new system for 'Support Organizations for Managing and Utilizing Vacant Houses.' This system aims to create an environment that facilitates public-private partnerships in vacant house measures and to enable private companies to play a complementary role to municipalities.

According to a survey by the Ministry of Land, Infrastructure, Transport and Tourism, as of the end of March 2025, 95 organizations have been designated as support organizations for managing and utilizing vacant houses in 64 cities, towns, and villages, and the designation of 120 organizations is being considered in 98 cities, towns, and villages.

Designation Received from Kitakyushu City as a Support Organization for Managing and Utilizing Vacant Houses

Our company operates the 'Crassone' service, which matches over 2,400 specialized construction companies nationwide with clients, and has accumulated over 170,000 user cases (Note 3) to date. Additionally, our public-private partnership vacant house measures project using the 'Deconstruction Cost Simulator' and 'Sumai no Shukatsu Navi' has been selected for three consecutive years from fiscal 2021 to fiscal 2023 in the Ministry of Land, Infrastructure, Transport and Tourism's 'Model Project for Vacant House Measures Utilizing the Housing Market,' and we are currently promoting vacant house measures in cooperation with 216 municipalities nationwide (as of June 1).

With this designation as a 'Support Organization for Managing and Utilizing Vacant Houses' by Kitakyushu City, we will implement collaborative efforts to address vacant houses. Through these efforts, we will not only solve the issues of vacant houses but also contribute to the promotion of municipal DX by utilizing IT technology and data from our operated 'Sumai no Shukatsu Navi' to improve the quality of municipal staff's responses to residents and improve operational efficiency.

Services Provided Based on the Support Organization for Managing and Utilizing Vacant Houses

Introducing 'Sumai no Shukatsu Navi,' which provides estimated costs for deconstruction and land sale appraisal prices

(URL: https://www.crassone.jp/simulator/navi/fukuoka/kitakyushushi)

Providing a 'Vacant House Consultation Window' for consultations on the disposal, utilization, and sale of vacant houses

Distributing flyers to vacant house owners on how to proceed with vacant house deconstruction

Utilizing our company's services and information for consultations from residents and vacant house owners, and for vacant house measures policies

Representative Comments

Kitakyushu City, Promotion of Vacant House Utilization Manager

Vacant house issues, which are often reported in the news and newspapers, are no longer someone else's problem. Vacant houses are increasing nationwide, and cases where improper management causes unexpected damage to neighbors or deteriorates the landscape and crime prevention environment of the region are endless. Even if it is a precious home filled with memories, if it is left unmanaged in the future, it will become a 'negative asset' that causes trouble to those around it. However, this problem can be avoided by taking early measures rather than postponing it as 'something for the future.' If an old vacant house is demolished, the site can be effectively utilized as new housing, store sites, parking lots, etc., but owners may have concerns about the cost burden and how to proceed with the construction. We would like to create an environment where, with the designation of Crassone as a support organization, in collaboration with other support organizations, we can alleviate such concerns and proceed with demolition and removal with peace of mind.

Crassone Inc. CEO Teppei Kawaguchi

Under the vision of 'Cultivating the Culture of Circular Regeneration of the Community,' we are engaged in supporting vacant house measures through the operation of the deconstruction work DX platform. While institutional development and budget expansion by the country are progressing, we feel that there are various challenges in municipalities at the forefront of vacant house measures, such as securing personnel and expertise. In this context, we are very honored to have been designated by Kitakyushu City as a support organization for managing and utilizing vacant houses and to be able to promote vacant house measures together. Additionally, the population of our cooperating municipalities has exceeded 30 million, covering about one in every four people in Japan. We will strengthen vacant house measures in Kitakyushu City and contribute to sustainable urban development by leveraging the insights and digital technology cultivated through cooperation with over 200 municipalities nationwide.

What is 'Sumai no Shukatsu Navi'?

'Sumai no Shukatsu Navi' is a portal site for obtaining various information when considering the disposal of inherited family homes or vacant houses. Its main functions include the ability to freely calculate the estimated costs of deconstruction and the estimated sale price of the land after deconstruction by entering conditions such as the area of the land and buildings, the nearest station, and the width of the adjacent roads.

In addition, the following services can be utilized from 'Sumai no Shukatsu Navi':

<Vacant House Consultation Window>

We support vacant house owners in considering the optimal exit strategy for the disposal, utilization, and sale of vacant houses. Through collaboration with real estate-related companies, various experts, and professional networks, we provide free consultation on various issues related to vacant houses through a single window. Since there is no need to consult with multiple experts individually multiple times, it is possible to proceed with the disposal of the house without much trouble.

Municipalities in Fukuoka Prefecture with a history of concluding cooperation agreements to date

Ogi Town

Municipalities that have been designated as support organizations for managing and utilizing vacant houses to date

Hiroshima's Fuchu City, Nagano's Ueda City, Chiba's Ichihara City, Osaka's Kashiwara City, Nagano's Nagaoka City, Gifu's Seki City, Nagasaki Prefecture