About the start of operation of the Fill Regulation Law

Wind and flood damage

The Act on the Regulation of Land Development and Specified Fills, etc. (hereinafter referred to as the Fill Regulation Act) which comprehensively regulates dangerous fills, etc. with uniform standards nationwide, came into force on May 26, 2023. Tokyo will designate regulated areas based on the Fill Regulation Act on July 31, 2024, and will begin implementing the act.

In addition, we would like to inform you that we have established a guide on the Fill Regulation Act, taking into account the opinions we received regarding the proposed standards for fill regulations published on January 29, 2024.

1 Regulatory Domains

Almost all of Tokyo falls under the residential land development construction restriction area or specific embankment restriction area.

A. Construction restriction areas for residential development, etc.

Areas such as urban areas, settlements, and their surrounding areas where construction of embankments or other works could cause harm to houses, etc.

B. Specific embankment restriction areas

Areas that are far from urban areas or settlements, but where construction of embankments, etc., may cause harm to houses, etc. due to topographical conditions, etc.

2 Guide to the Embankment Regulation Act


This manual compiles information on the application procedures and screening criteria for regulations under the Filling Land Regulation Act.
It is a manual that complies with the Filling Land Regulation Act by prescribing the criteria for screening newly established items such as the financial and creditworthiness of construction owners, as well as describing the technical criteria for specific fills and the accumulation of earth and rocks.

(2)Application start date

July 31, Reiwa 6 (2024)

(3)Target area

Municipalities within Tokyo to which the Tokyo Metropolitan Government grants permission under the Landfill Regulation Act (special wards, Hachioji City, and Machida City are excluded)

(4)Results of the opinion poll

Comment collection period

From January 29 to February 28, 2024

Number of people who submitted opinions

1 person

Number of opinions submitted

3 Results
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(5)Manual text

You can view it on the Urban Development Bureau website.

(6)Reference website

Regulations based on the Embankment Regulation Act (Urban Development Bureau website)

This project is a part of the ““Future Tokyo” Strategy“.
Strategy 8: Safe and Secure City Development Strategy

Contact information
Urban Development Bureau, Urban Development Department, Land Readjustment Division
Tel: 03-5320-5132
Email: S0000393(at)section.metro.tokyo.jp
*The email address has been changed to prevent spam.
Please replace (at) with @ when using the email address.


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