The Tokyo Metropolitan Government is working to create a city where residents can live without anxiety, and is advancing preparations for the imminent risk of a major earthquake directly beneath the capital. Accordingly, we are pleased to announce that we are once again accepting applications this fiscal year for subsidies covering the design and construction costs of emergency reinforcement for pilotis floors and similar structures ^{[Note 1]} in apartment buildings constructed under the old seismic standards, which are at particularly high risk of collapse.Even if it is
difficult to retrofit the entire apartment building, reinforcing pilotis and similar floors first can significantly improve seismic resistance and also allows for a phased approach to enhancing seismic safety depending on the situation. We encourage you to take advantage of this program.
[Note 1] Floors where the first-floor area is used for parking or similar purposes and has fewer load-bearing walls.

1. Project Name

Emergency Measures Project for Piloti Floors and Similar Areas to Protect Lives

2. Application Start Date

Thursday, April 16, 2026

3. Application Submission Desk

Tokyo Metropolitan Disaster Prevention, Architecture, and Urban Development Center (Public Interest Incorporated Foundation)

4. Overview of Subsidies

Eligible individuals

Homeowners’ association for a condominium built under the old seismic standards

Target Buildings

Apartments with a pilotis level or similar (generally, where the Is value ^{[Note 2]} for the first and second floors is less than 0.4)

[Note 2] The Is value refers to the structural seismic performance index, which serves as the criterion for assessing seismic performance.

Eligible expenses

Costs associated with the design and construction of reinforcements for pilotis and similar structures

Subsidy rate

50% (up to 17,500,000 yen)

For more details, please visit the Tokyo Metropolitan Government Condominium Portal.

5. Support for Utilizing Subsidies

For apartment buildings that have already undergone a seismic assessment, we will dispatch experts free of charge to determine eligibility for this subsidy and provide advice on specific reinforcement methods. Additionally, starting in fiscal year 2026, we have expanded the eligibility for expert dispatch to include apartment buildings that have not yet undergone a seismic assessment, so we encourage you to take advantage of this service.

Free Dispatch of Experts

Apartment Seismic Retrofit Support Program

This project is an initiative to promote the “Tokyo 2050 Strategy.”
Strategy 21: Strengthening Urban Resilience—”Promoting the Creation of Cities That Can Withstand Disasters and Ensure Safety”

Contact : Condominium Section, Private Housing Division, Housing Policy Headquarters Phone: 03-5320-4944 Email: S1090503(at)section.metro.tokyo.jp *The email address has been changed to prevent spam. Please replace (at) with @ when using this email address.