Renovation Pricing | Kanameishi Co., Ltd.

Life-saving measures, at an accessible price.

We have made seismic reinforcement costs — once opaque — "transparent," and built a system you can trust with your construction project.
By systematizing our own know-how, we keep costs down while maintaining reliable quality.

Price Estimates

Transparent pricing for seismic diagnosis and reinforcement planning

* The prices above are basic estimates assuming a floor area of approximately 30 tsubo (about 100 m²).
The official design and construction costs will be presented as a detailed quote after the "seismic diagnosis (on-site survey)" is completed.
* Actual costs will vary depending on the building's conditions.
(Examples of variable conditions: total floor area (size) of the building, building age and degree of deterioration over time, availability of existing drawings and building confirmation/inspection certificates)
* The method of receiving subsidies differs by municipality (whether it is a "reimbursement" paid into your account, or a "proxy receipt" paid directly to us).
We research the latest program details for your area and propose a financing plan that minimizes your initial out-of-pocket burden.

Subsidy Application Process

Subsidy programs vary by municipality in terms of application method and timing of disbursement. At Kanameishi, we accurately assess your situation and support you through the cumbersome application procedures.

Making Use of Subsidy Programs

Tokyo's 23 special wards offer subsidy programs for seismic diagnosis, reinforcement design, and reinforcement construction of wooden houses. If you meet the conditions, you can significantly reduce your out-of-pocket costs.

What to check before using the subsidy search simulator
①The program mainly covers single-story and 2-story wooden houses built before 2000.
②The maximum amounts shown apply when certain conditions set by each ward are met. The actual subsidy amount varies depending on the building's condition and the applicant's family composition.
③Using a subsidy always requires an advance application before signing a contract or starting work.

Subsidy Simulator

Select your conditions to automatically calculate an estimated subsidy amount for your area.

Your Ward

↑ Please select your conditions

View the table of maximum subsidy amounts by ward

Ward	Diagnosis Subsidy Rate	Diagnosis Limit (10,000 yen)	Design Subsidy Rate	Design Limit (10,000 yen)	Construction Subsidy Rate	Construction Limit (10,000 yen)	Max Total (10,000 yen)

The above is an estimate as of April 2026. Programs in each ward may change.
If your building is eligible for "seismic subsidies for buildings along major roads used by fire trucks and ambulances during disasters (the seismic reinforcement subsidy program for buildings along designated/general emergency transport roads),"
the subsidy amount may be larger than the figure calculated by the simulator above.
For details on the seismic reinforcement subsidy program for buildings along designated/general emergency transport roads, please check the "Tokyo Metropolitan Government Seismic Portal Site" .
If you are unsure whether you meet the relevant conditions when using the simulator, please contact Kanameishi or your ward office.
Please contact each ward for details on subsidies. At Kanameishi, our specialist staff also support the subsidy application process.

Start with a Free Consultation

It all starts with knowing how strong your home currently is.
We never engage in pushy sales tactics, so please feel free to contact us.

Book a Free Consultation