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Earthquake resistance of specific buildings
Last Updated April 19, 2024
The Yokohama City Specific Building Seismic Retrofitting Subsidy Project includes seismic diagnosis and seismic diagnosis of buildings used by many people, such as hospitals, schools, stores, offices, etc., and buildings along roads that should secure traffic in the event of an earthquake disaster. This is a system to support a part of the cost for renovation design, seismic retrofitting, and removal.
Brochure
Target building
- Prior to applicationPre-consultation slip (word: 25KB)Please fill in the form below and consult with the Building Disaster Prevention Section.
- About books necessary for supporting applications
1 Buildings subject to seismic diagnosis
Private buildings that fall under (A) or (B) in buildings started before May 31, 1981
（A） Emergency safety confirmation Large-scale buildings | Buildings used by an unspecified number of people, buildings used by those who need special consideration in securing evacuation, or large-scale buildings that are storage or treatment plants for dangerous goods |
|---|---|
（B） Building with safety confirmation plan | Of the roads that should be secured in the event of an earthquake disaster, buildings that have a site in contact with a particularly important road (* 1) and are above a certain height (* 2) |
2 Buildings excluding buildings subject to mandatory seismic diagnosis.
Buildings started on or before May 31, 1981, private buildings that fall under (C) or (D), excluding those subject to seismic diagnosis obligations
（C） Buildings used by a large number of people and buildings used by those who need special consideration in securing evacuation | Buildings used by a large number of people and buildings used by those who need special consideration in securing evacuation |
|---|---|
（D） Buildings along roads that should be secured in the event of an earthquake disaster | Buildings with a certain height (* 4) or more buildings where the site touches the road (* 3) that should be secured in the event of an earthquake disaster ("Yokohama City Condominium Seismic Diagnosis Support Project" and "Yokohama City Condominium Seismic Retrofit Promotion Project" Excludes buildings subject to) |
Content of assistance
Subsidiary requirements
- For seismic diagnosis, standard work and other quotes are required.
- For seismic diagnosis and seismic retrofitting design, it is necessary to obtain a third-party evaluation such as an evaluation organization.
- Those who perform seismic diagnosis and seismic retrofit design must be qualified as a diagnostician.
- Regarding seismic retrofitting design, seismic retrofitting, and assistance for removal, those that have been determined to have insufficient earthquake resistance as a result of the seismic diagnosis are eligible.
- Of the buildings subject to seismic diagnosis obligations, subsidies (emergency promotion project subsidies) have been issued directly from the government for projects other than the "diagnosis" of (A large-scale obligations) so far. However, it was added to the subsidy of the city from 2021 and will be unified as a subsidy for city.
Application Flow
Regarding application procedures, in addition to the reception at the counter, we also accept applications by e-mail or mail.
Subsidized amount
（１） The total amount of 2 and 2 is the subsidy amount.
（１） Of the following 1, 2 and 3, the lowest amount
①Costs required for seismic diagnosis × Subsidiary rate 1(*5)
②Project cost limit (* 6) x Subsidy rate 1 (*5)
③3.6 million yen ((C large-scale assistance), (D roadside assistance) only)
（２） Of the following (1) and (2), the lower amount
①Costs required for seismic diagnosis × Subsidiary rate 2(*5)
②Project cost limit (* 6) x Subsidy rate 2 (*5)
| Type of building | Subsidiary rate 1 | Subsidiary rate 2 |
|---|---|---|
| (A Large-scale Obligations) | ５／６ | ０ |
(B roadside obligations) | α／４ (1/6 if it exceeds 1/6) | |
(C large-scale assistance) | ２／３ | ０ |
α in the table shows “Calculated amount based on (1)” / “Expense required for seismic diagnosis *”. | ||
| Total floor area | Limits | Remarks |
|---|---|---|
| Buildings within 1,000 m2 | Amount obtained by multiplying 3,670 yen multiplied by a | If expenses other than the cost required for normal seismic diagnosis, such as the restoration of design documents or the evaluation of a third-party evaluation organization, are required, the amount calculated from the table can be added up to 1,570,000 yen. |
| More than 1,000 m2 Buildings within 2,000 m2 | 3,670,000 yen | |
| Buildings over 2,000 m2 | 5,240,000 yen | |
| A in the table shows the total floor area of the building. | ||
Subsidized amount
（１） The total amount of 2 and 2 is the subsidy amount.
（１） Of the following (1) and (2), the lower amount
①Costs required for seismic retrofit design x 2/3
②3.6 million yen (200,000 yen for wooden buildings)
（２） Costs required for seismic retrofit design x Subsidy rate 2(*7)
| Type of building | Subsidiary rate 2 |
|---|---|
(A Large-scale Obligations) | １／３－α／４ |
(B roadside obligations) | α／４ |
(C large-scale assistance) | ０ |
| α in the table shows “Calculated amount based on (1)” / “Expense required for seismic retrofit design”. | |
Subsidized amount
（１） The total amount of (2) and (3) is the subsidy amount.
（１） Of the following 1, 2 and 3, the lowest amount
①Costs required for seismic retrofitting work x Subsidy rate 1 (* 8) + Expenses required for construction supervision x 2/3
②Project cost limit for seismic retrofitting work 1 (* 9) x Subsidy rate 1 (* 8) + Cost required for construction supervision x 2/3
③Subsidiary limit (* 10)
（２） Of the following (1) and (2), the lower amount
①Costs required for seismic retrofitting work x Subsidy rate 2 (* 8) + Expenses required for construction supervision x Subsidy rate 2 (* 8)
②Project cost limit for seismic retrofitting work 2 (* 11) x subsidy rate 2 (* 8) + Cost required for construction supervision x Subsidy rate 2 (* 8)
（３） Of the following 1, 2 and 3, only for buildings with a low amount ((B roadside obligation) and tenants, etc. For tenants, etc.
Please refer to the brochure for more information.
①Amount obtained by multiplying the cost required for seismic retrofitting work by 1/15
②The total rent for six months based on the lease agreement multiplied by 2/3.
③Subsidiary limit 1.8 million yen
| Type of building | Subsidiary rate 1 | Subsidiary rate 2 | |
|---|---|---|---|
| Seismic retrofitting work | Seismic retrofitting work | Construction supervision | |
(A Large-scale Obligations) | １／３ | 0.115＋31α／69 (131/600 if it exceeds 131/600) | １／３－β／４ (1/6 if it is less than 1/6) |
(B roadside obligations) | ２／３ | α／10 (1/15 if it exceeds 1/15) | β／４ (1/6 if it exceeds 1/6) |
(C large-scale assistance) | １／３ | ０ | ０ |
(D roadside assistance) | ２／３ | ||
α in the table indicates “(1) for seismic retrofitting work” / “Expense required for seismic retrofitting work” / “Expense required for seismic retrofitting work *” | |||
| Building classification | In the case of general construction methods | Special construction methods such as seismic isolation method |
|---|---|---|
| Wooden buildings | 2,700,000 yen | |
| Housing | Amount obtained by multiplying 34,100 yen multiplied by a | |
Condominium | Amount obtained by multiplying 50,200 yen (or 55,200 yen *) multiplied by a | The amount obtained by multiplying 83,800 yen by a |
| Other than the above | Amount obtained by multiplying 51,200 yen (or 56,300 yen *) multiplied by a | The amount obtained by multiplying 83,800 yen by a |
A in the table shows the total floor area of the building. | ||
Total floor area | Limits |
|---|---|
| Less than 5,000 m2 | 20 million yen |
| 5,000 m2 or more and less than 10,000 m2 | 35 million yen |
| 10,000 m2 or more | 50 million yen |
| Building classification | In the case of general construction methods | Special construction methods such as seismic isolation method |
|---|---|---|
| Housing | Amount obtained by multiplying 34,100 yen multiplied by a | |
Condominium | Amount obtained by multiplying 50,200 yen (or 55,200 yen *) multiplied by a | The amount obtained by multiplying 83,800 yen by a |
| Other than the above | Amount obtained by multiplying 51,200 yen (or 56,300 yen *) multiplied by a | The amount obtained by multiplying 83,800 yen by a |
A in the table shows the total floor area of the building. | ||
Subsidized amount
（１） The total amount of (2) and (3) is the subsidy amount.
（１） Of the following 1, 2 and 3, the lowest amount
①Costs required for removal work x 2/3
②Operating cost limit 1(*16) x 2/3
③Subsidy limit(*17)
（２） Of the following (1) and (2), the lower amount
①Costs required for removal work x Subsidy rate 2 (*18)
②Project cost limit 2 (* 19) x Subsidy rate 2 (* 18)
（３） Of the following 1, 2 and 3, the low amount (only for buildings with tenants, etc. Brochures for tenants and other requirements
Please check it.
①Amount obtained by multiplying the cost required for retirement work multiplied by 1/15
②The total rent for six months based on the lease agreement multiplied by 2/3.
③Subsidiary limit 1.8 million yen
| Building classification | Operating Expenses Limit 1 |
|---|---|
| Wooden buildings | Amount obtained by multiplying 13,500 yen by a |
| Non-wooden buildings | Amount obtained by multiplying 29,000 yen by a |
| A in the table shows the total floor area of the building. | |
| Total floor area | Limits |
|---|---|
Less than 2,500 m2 | 10 million yen |
| 2,500 m2 or more | 20 million yen |
| Type of building | Subsidiary rate 2 |
|---|---|
(B roadside obligations) | α／10 (1/15 if it exceeds 1/15) |
α in the table indicates “Calculated amount based on (1)” / “Expense required for retirement work *”. | |
At the time of prior consultation
- Pre-consultation slip
- Guide map, layout drawing, floor plan of each floor, elevation, structural drawing, etc.
- Photos around the site, exterior photos (about a few photos)
- A copy of the building confirmation, a copy of the inspection certificate
- Drawings and Statements of Seismic Diagnosis (in the case of prior consultation on seismic retrofitting design)
- Drawings and statements of seismic retrofit design (in the case of prior consultation on seismic retrofitting work)
- Other books that the mayor deems necessary
Regarding application procedures, in addition to the reception at the counter, we also accept applications by e-mail or mail.
※Application style download
Seismic Diagnosis
- A set of assistance application
- Photographs of the current building (about a few photos)
- Guide map, layout drawing, floor plan, elevation, structural drawing, etc.
- A document certifying the ownership of the building (issued within three months of application)
- A document certifying that all persons who have ownership of the building other than the applicant has obtained consent to apply for the project, or a voting form by the division owner
- Copy of documents showing the results of the earthquake resistance diagnosis or the result of the bidding (3 or more persons * 19)
- Those who can be judged to be qualified as a seismic diagnosis prescribed in Article 5, Paragraph 1 of the Enforcement Regulations of the Act on Promotion of Seismic Retrofitting (three or more * 19)
- Copy of the Architect Office Registration Notice pursuant to the provisions of Article 23, Paragraph 1 of the Architect Law (3 or more persons * 19)
- Copy of Motoichi qualified person list of city company, corporation number printing document or company registry of company (three or more ※ 19)
- Other books that the mayor deems necessary
- Copy of documents that can be used to verify your identity (license, insurance card, etc.) (excluding My Number Card) ※20
（※19） When the cost of the project is expected to be 1 million yen or more
（※20） When submitting at the counter, only presentation
Seismic retrofit design
- A set of assistance application
- Photographs of the current building (about a few photos)
- Guide map, layout drawing, floor plan, elevation, structural drawing, etc.
- A document certifying the ownership of the building (issued within three months of application)
- A document certifying that all persons who have ownership of the building other than the applicant has obtained consent to apply for the project, or a voting form by the division owner
- A copy of a document that shows the results of the seismic retrofit design or the results of the tender (3 or more persons * 19)
- Those who can be judged to be qualified as a seismic diagnosis prescribed in Article 5, Paragraph 1 of the Enforcement Regulations of the Act on Promotion of Seismic Retrofitting (three or more * 19)
- Copy of documents that can confirm the results of the earthquake-resistant diagnosis (unnecessary for buildings requiring seismic diagnosis)
- Copy of the Architect Office Registration Notice pursuant to the provisions of Article 23, Paragraph 1 of the Architect Law (3 or more persons * 19)
- Copy of Motoichi qualified person list of city company, corporation number printing document or company registry of company (three or more ※ 19)
- Other books that the mayor deems necessary
- Copy of documents that can be used to verify your identity (license, insurance card, etc.) (excluding My Number Card) ※20
（※19） When the cost of the project is expected to be 1 million yen or more
（※20） When submitting at the counter, only presentation
Precautions after subsidy grant decision
Seismic retrofit
- A set of assistance application
- Photographs of the current building (about a few photos)
- Guide map, layout drawing, floor plan, elevation, structural drawing, etc.
- A document certifying the ownership of the building (issued within three months of application)
- A document certifying that all persons who have ownership of the building other than the applicant has obtained consent to apply for the project, or a voting form by the division owner
- A copy of a document that shows the results of the seismic retrofitting work or a document that shows the results of the bidding (3 or more persons * 19)
- A copy of a document that shows the results of the construction supervision quotation or the result of the bidding (three or more persons * 19)
- Those who can be judged to be qualified for seismic diagnosis prescribed in Article 5, Paragraph 1 of the Enforcement Regulations of the Act on Promotion of Seismic Retrofitting (construction supervision: 3 or more persons * 19, seismic retrofit design that is the basis of seismic retrofitting: 1 person)
- Copy of documents that can confirm the results of the earthquake-resistant diagnosis (unnecessary for buildings requiring seismic diagnosis)
- Copy of the Architect Office Registration Notice pursuant to the provisions of Article 23, Paragraph 1 of the Architect Law (3 or more persons * 19)
- A copy of the construction business license prescribed in Article 3, Paragraph 1 of the Construction Business Law (3 or more persons * 19)
- Copy of Motoichi qualified person list of city company, corporation number printing document or company registry of company (three or more ※ 19)
- Evaluation report by the Seismic Evaluation Committee, etc. of the seismic retrofit design related to the seismic retrofit, a certificate of the overall plan, or a copy of the building confirmation completed document
- Documents confirming the details of the seismic retrofit
- A copy of lease agreement and a lease part are known (only for buildings with (B roadside obligations) and tenants, etc.)
- Other books that the mayor deems necessary
- Copy of documents that can be used to verify your identity (license, insurance card, etc.) (excluding My Number Card) ※20
（※19） When the cost of the project is expected to be 1 million yen or more
（※20） When submitting at the counter, only presentation
Precautions after subsidy grant decision
Removal
- A set of assistance application
- Photographs of the current building (about a few photos)
- Guide map, layout drawing, floor plan, elevation, structural drawing, etc.
- A document certifying the ownership of the building (issued within three months of application)
- A document certifying that all persons who have ownership of the building other than the applicant has obtained consent to apply for the project, or a voting form by the division owner
- A copy of a document that shows the results of the retirement work or a document that shows the results of the tender (3 or more persons * 19)
- Copy of documents that can confirm the results of the earthquake-resistant diagnosis (unnecessary for buildings requiring seismic diagnosis)
- A copy of the construction business license prescribed in Article 3, Paragraph 1 of the Construction Business Law (3 or more persons * 19)
- Copy of Motoichi qualified person list of city company, corporation number printing document or company registry of company (three or more ※ 19)
- A copy of lease agreement and a lease part (only for buildings with tenants, etc.)
- Other books that the mayor deems necessary
- Copy of documents that can be used to verify your identity (license, insurance card, etc.) (excluding My Number Card) ※20
（※19） When the cost of the project is expected to be 1 million yen or more
（※20） When submitting at the counter, only presentation
Precautions after subsidy grant decision
Precautions
- When delegating the application procedure to an agent, it is necessary to submit a power of attorney.
In addition, it is necessary for an administrative scrivener or a person who is not an administrative scrivener corporation to obtain a fee at the request of another person and obtains a fee to be submitted to a public office, except where there is a special provision by law. Please note that it violates the law. - If the cost pertaining to the business is expected to be 1,000,000 yen or more, please collect a bid or estimate by three or more businesses.
- When expense pertaining to the business concerned is expected to be more than 1,000,000 yen, it is necessary to perform bid or collection of estimate from city company. However, if a subsidy grant decision or overall design approval is received by March 31, 2026, the conditions of some companies will be eased. For more information, please refer to the following page.
- In principle, consumption tax is not covered by the subsidy. However, if the consumption tax amount pertaining to the business is not added to the purchase tax deduction under the provisions of the Consumption Tax Law at the time of final tax return, it can be included in the subsidized operating expenses. When consumption tax is targeted for subsidy, presentation of confirmation, report, etc. at the time of subsidy grant application and after final tax return. For more information, please contact us.
About disposal of building which we received subsidy and earthquake-resistant repair
When demolishing, transferring (including paid), exchange, lending, etc. of a building that has undergone seismic renovation with a subsidy during the prescribed useful life (10 years in this project), Approval from the country is required. Please note that approval may require a refund of the subsidy amount.
Please note that if you dispose of the property without approval, it will be judged that it violates the provisions of this project, the grant of the subsidy will be canceled and the full refund will be made.
About reduction system of building which was earthquake-resistant repair
There is a tax reduction in property tax and city planning tax and a special deduction system for income tax and corporate tax for "buildings requiring seismic diagnosis" or "houses" that have undergone seismic retrofitting.
- Reduction system for houses requiring seismic diagnosis that underwent seismic retrofitting work
- Reduction system for houses that underwent seismic renovation work
- Special measures for seismic retrofitting of houses (outside site)
System outline, etc.
- Yokohama City Specific Building Seismic Retrofitting Support Business System Outline (April 1, 2023) (PDF: 412KB)
- Subsidy grant guidelines (enforced on April 1, 2023) (PDF: 730KB) pertaining to subsidy projects such as Yokohama City Specific Building Seismic Retrofit
Assistance projects such as seismic retrofitting of specific buildings, contact information
City of Yokohama, Housing and Architecture Bureau Planning Department, Building Disaster Prevention Section (Reception hours: 8:45 a.m. to 12:00, 1:00 p.m. to 5:15 p.m.)
Phone: 045-671-2928、FAX： 045-663-3255、E-MAIL： kc-taishin@city.yokohama.jp
〒231-0005 6-50-10 Honcho, Naka-ku, Yokohama City Hall 25th Floor (Guide Map)
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For inquiries to this page
Building Disaster Prevention Section, Housing and Architecture Bureau Planning Department
Phone: 045-671-2928
Phone: 045-671-2928
Fax: 045-663-3255
Email address: kc-taishin@city.yokohama.jp
Page ID: 638-001-001
