Subsidy for Seismic Renovation of Wooden Houses

We will expand the scope of subsidies

In Inagi City, we are providing support through seismic diagnosis and renovation subsidy projects to promote the seismic retrofitting of wooden houses, learning from past earthquakes.

Starting from the 7th year of Reiwa, in addition to subsidies for seismic diagnosis and renovation, subsidies for demolition (seismic removal) have also been newly included as eligible.

In addition, regarding seismic retrofitting, in addition to wooden houses built according to the standards before May 31, 1981, newly, wooden houses built using traditional frame construction methods from June 1, 1981, to May 31, 2000, whether single-story or two-story, are also eligible for subsidies.

Residents of these homes are encouraged to consider seismic retrofitting or demolition (seismic removal) to protect their important lives and property.

• Seismic Resistance Brochure (PDF 743.4KB)

Seismic Retrofit Subsidy Eligible Housing

The eligible houses for the subsidy are those that have undergone seismic diagnosis using the Inagi City Wooden House Seismic Diagnosis Subsidy System, or houses that have undergone seismic diagnosis conducted by the diagnostic institutions listed below, and must meet all of the following conditions 1 to 5.

1. It is a private wooden house or wooden apartment building located within the city that has been subject to seismic diagnosis conducted by a diagnostic institution, and is eligible for grants based on the guidelines for seismic diagnosis assistance.
2. Buildings constructed based on standards before May 31, 1981, or single-story or two-story buildings constructed using traditional frame construction methods based on standards from June 1, 1981, to May 31, 2000.
3. If a single building is used for multiple purposes, more than half of the total floor area of that building must be allocated for residential use.
4. For houses diagnosed with a possibility of collapse based on seismic diagnosis, the evaluation score after seismic retrofitting should be 1.0 or higher.
5. The content of the seismic retrofitting is based on the results of the seismic diagnosis.

Subsidized Housing for Demolition (Seismic Removal)

The eligible houses for the subsidy are those that have undergone seismic diagnosis using the Inagi City Wooden House Seismic Diagnosis Subsidy System, or houses that have undergone seismic diagnosis conducted by the diagnostic institutions listed below, and must meet all of the following conditions 1 to 5.

1. It is a private wooden house or wooden apartment building located within the city that has been subject to seismic diagnosis conducted by a diagnostic institution, and is eligible for grants based on the guidelines for seismic diagnosis assistance.
2. Built before May 31, 1981
3. If a single building is used for multiple purposes, more than half of the total floor area of that building must be allocated for residential use.
4. It has been diagnosed that there is a possibility of collapse based on the results of the seismic diagnosis.
5. The content of the seismic retrofitting is based on the results of the seismic diagnosis.

Diagnostic Institution

Please check the following page for the applicable diagnostic institutions.

• Wooden House Seismic Diagnosis Subsidy

Please check the following regarding contractors.

Eligible Recipients

The following conditions must all be met.

1. Currently, you must have ownership of the housing eligible for assistance. However, if the housing eligible for assistance is a shared property, you must have the authority based on the agreement of all co-owners.
2. All owners of the subsidized housing (if the subsidized housing is a shared property, all co-owners) and all residents living in the subsidized housing (excluding occupants living in collective housing) must not be in arrears on Municipal Tax.

Grant Amount

We will subsidize half of the cost (excluding tax) required for seismic retrofitting, up to a maximum of 1 million yen.

Proxy Receipt System

The proxy receipt system is a system in which the contractor receives the subsidy on behalf of the recipient.
By using this system, you can carry out seismic retrofitting by only paying the difference between the seismic retrofitting costs and the subsidies to the contractor.

• Proxy Receipt System Brochure (PDF 253.4KB)

Construction Contractor

Those who engage in the construction business shall obtain a construction business license in accordance with the provisions of Article 3, Paragraph 1 of the Construction Business Act (Law No. 100 of 1949).

Reference

List of Construction Contractors Who Attended the Wooden House Seismic Retrofit Business Operators Training

Since fiscal year 2018, the "Wooden House Seismic Retrofit Business Operators Workshop," co-hosted by the Tokyo Metropolitan Government, Inagi City, and related wards and municipalities, has been made available on-demand through the Tokyo Seismic Portal Site. Business Operators who have completed the course and requested to be listed are included in the "List of Business Operators Who Attended the Wooden House Seismic Retrofit Workshop" (see the link below).
In addition, regarding the seismic retrofitting subsidy for wooden houses in Inagi City, even if the contractor is not listed in this list, seismic retrofitting work conducted by those who have obtained construction industry permission will be eligible for the subsidy. (Other requirements apply. For more details, please contact us.)

• 5. Publication of the List of Business Operators Who Attended the Wooden House Seismic Retrofit Business Operators Training Course(External Link)

Grant Guidelines, Important Points, Application Process

• Inagi City Wooden House Seismic Retrofit Subsidy Guidelines (PDF 184.5KB)
• Notes on the Subsidy for Seismic Retrofitting of Wooden Houses in Inagi City (FY 2025 Edition) (PDF 89.1KB)
• Application Process for Seismic Retrofit Subsidy (PDF 158.1KB)
• Application Process for Seismic Demolition Subsidy (PDF 153.3KB)
• How to Prepare Documents for Seismic Retrofit Subsidy Application and Q&A (PDF 583.7KB)

Related Forms

• Wooden House Seismic Retrofit Subsidy Guidelines Form (Word 128.5KB)
• Wooden House Seismic Retrofit Subsidy Guidelines Form (PDF 307.1KB)
• Power of Attorney (Word 16.4KB)
• Power of Attorney (PDF 59.0KB)
• Consent Form (When the resident and owner are different) (Word 16.4KB)
• Consent Form (When the resident and owner are different) (PDF 57.5KB)
• Consent Form (If there are co-owners) (Word 16.2KB)
• Consent Form (If there are co-owners) (PDF 58.1KB)

Submission Deadline

Application Form

Please submit the Application Form by Friday, December 12, 2025.
Note: Even within the deadline, if the budget amount is exceeded, you may be asked to apply in the next fiscal year.
Please note that in order to receive the subsidy, you must apply for the subsidy to the city before signing the contract for the seismic retrofitting work. If you are considering receiving the subsidy, we kindly ask you to consult with the city in advance.

Application Form for Change Approval

Please submit the Application Form by Friday, December 19, 2025.
If you wish to change or discontinue the seismic retrofitting details, please consult us in advance regarding the changes.

Completion Report

Please submit the report by February 6, 2026 (Friday).
Note: Even if it is within the deadline, please submit the completion report promptly once the seismic retrofitting is completed.