About Yokohama-shi wooden house earthquake-resistant repair assistance system

The Yokohama City Wooden House Seismic Retrofit Improvement Promotion Project is a system in which the city subsidizes a part of the cost of seismic retrofitting work for wooden private houses.

We will accept documents pertaining to the application at the window of the city. Please submit by bringing or mailing.
※Until 2023, we asked for presentation to "association of Yokohama-shi architect office", but please submit to city directly in 2024.

■Targets (For details, see the application guide.)
<Eligible housing>

• Wooden private houses with a conventional framed construction method of 2 stories or less that were started with construction confirmation before the end of May 1981 (self-owned and resident by himself)
• In the above houses, houses whose score (superstructure rating, etc.) is determined to be less than 1.0 as a result of the earthquake resistance diagnosis.

※Houses whose superstructure rating is determined to be 1.0 or more in the seismic diagnosis (diagnosis after September 1, 2007) by the general diagnosis method performed by Yokohama City are excluded.
※If the owner is not resident and the spouse or first-degree relatives of the owner live, please contact us.
※In the case of a house with multiple dwelling units (including a part of the building in contact with the neighboring building), please contact us.
※In the case of mixed structures (buildings containing structures other than wooden structures) or special shapes, be sure to consult with us if you are eligible for assistance before applying.

<Eligible construction>

• Seismic retrofitting work with a score of 1.0 or more by seismic diagnosis due to reinforcement of foundations, reinforcement of braces (bearing walls), replacement of roofs for weight reduction, etc.
• Rebuilding work is not eligible.

　　System Outline Flyer (PDF: 1,654KB)
　　Recommendation of earthquake-resistant repair (wooden house earthquake-resistant repair work example collection) (PDF: 3,223KB)

• For seismic retrofitting work costs, we will provide assistance with the subsidy limit shown in the table below according to the taxation classification of the household.
  

※Households in which all households have not been subject to residence tax for the past two years

When we are going to receive grant of subsidy, procedures such as grant application of subsidy are necessary. For details, please refer to the "Application Guide".

In addition, we can distribute applications at Housing and Architecture Bureau Building Disaster Prevention Section window or download from the following. In addition, depending on the time of application, the “Application Guide” and application documents to be applied will differ. Please note that if it is not in the appropriate format, correction will be required.

[Guide to Application]
From fiscal 2023, the application guide has been revised. Please refer to the following.
“Application Guide-Revised No. 7 General-” (revised in April 2023) [Latest Edition] (PDF: 4,611KB)

[Application Documents]
■Application download page
■If you are a business operator, please also see the design, construction and inspection application download page.

• Yokohama City has implemented a system to register reliable design and construction companies in Yokohama City with the aim of preventing troubles caused by malicious businesses and starting seismic retrofitting work with peace of mind.
• When performing seismic retrofitting work using this system, only registered businesses can design and construct. Temporary registration is required when a non-registered company designs and constructs.
• Since the availability and characteristics of design and construction vary from company to company, it is recommended that you consult with multiple companies and select a company that meets your wishes.
• Construction companies are limited to city contractors (contractors with headquarters in the city).

　　　　Temporary registration set of registration form (word: 26KB)

Design and construction company registration system To citizens

After using the free earthquake-resistant diagnosis of Yokohama City or the use of the earthquake-resistant repair assistance system in Yokohama City, if the score (superstructure rating, etc.) by the earthquake-resistant diagnosis is determined to be 1.0 or more, a document certifying that it has earthquake resistance And a sign (gate seal) will be issued.
▼Signpost seal image

If you perform seismic retrofitting, you can receive special tax measures. When we perform earthquake-resistant repair work using supporting system in Yokohama-shi, we can issue "house earthquake-resistant repair certificate" necessary for special measures.
In order for those who have undergone seismic retrofitting to receive a special deduction for income tax and a reduction in property tax (wooden house)

Yokohama-shi energy-saving housing relocation assistance system
<Business entity> City of Yokohama, Housing and Architecture Bureau Housing Policy Division (Homepage of City of Yokohama, Housing and Architecture Bureau Housing Policy Division)

Subsidy grant summary (PDF: 538KB) about Yokohama-shi wooden house earthquake-resistant repair promotion business
Yokohama-shi wooden house earthquake-resistant diagnosis, earthquake-resistant repair completion certificate grant system conduct summary (PDF: 361KB)

Building Disaster Prevention Section, City of Yokohama, Housing and Architecture Bureau Planning Department

• Address: 6-50-10 Honcho, Naka-ku, Yokohama 231-0005 25th floor, Japan
• Phone: 045-671-2943
• FAX： 045-663-3255
• Reception hours: From 8:45 to 12:00, from 13:00 to 17:15 (excluding weekends, holidays, and the year-end and New Year holidays)