Outline of Regulation Law for Residential Land Development

The purpose is to protect the lives and property of the people by performing necessary regulations to prevent disasters caused by landslides or runoff of earth and sand accompanying residential land development, and to contribute to public welfare.

When we perform construction about residential land development in residential land development construction regulation area which Yokohama-shi appointed as city area where disaster may occur or area to become city area, we must receive permission of the mayor.

• What is residential land development?…
  Residential land development refers to "change of land characteristics to be performed in order to make land other than residential land residential land or in residential land".
• What is a residential area?…
  Residential land refers to "land other than land used for farmland, pastures and forests, and roads, parks, rivers, and other facilities for public use specified by a Cabinet Order."
  The “residential land” here includes parking lots, tennis courts, graveyards, etc. that do not involve buildings.

When we perform construction corresponding to any of the following in residential land development construction regulation area, we adapt plan of construction to residential land development technical standard-design edition ... and must receive permission of the mayor before construction start Hmm.
In addition, the contents of the development permit issued with the permission of Article 29, Paragraph 1 or Paragraph 2 of the City Planning Act (including those deemed to be the contents under the provisions of Article 35-2, Paragraph 5 of the same Act) ) Is not required for construction related to residential land development that conforms to).

• In the case of a cut, a "cliff" whose height exceeds 2 meters in that part.
• In the case of embankment, a "cliff" whose height exceeds 1 meter in that part.
• When cutting and embankment are performed at the same time, a "cliff" with a height of 1 meter or less is created on the embankment part, and a "cliff" with a height of more than 2 meters is created on the part where the cut and embankment were performed What you can do.
• Acts other than the above, where the area of cut or embankment exceeds 500 square meters

※　A cliff is "land where the ground surface is more than 30 degrees relative to the horizontal plane and other than hard rock (excluding those that are significantly weathered).
※　Basic land business (root cutting), which is recognized as an integral construction that is inseparable from the construction of the building itself, does not correspond to cut forest. However, when creating the entire outer periphery of the building, the foundation part of the building shall also be within the range of cutting.
For details, please see "Construction requiring Permission" (PDF: 105KB).

Owners of residential land in the residential land development construction restricted area have a duty to maintain a safe state at all times so that disasters such as landslides do not occur.
In addition, the mayor may give recommendation or improvement order to owners of residential land for prevention of disaster.
In addition, in Yokohama building information center (city hall the second floor), we can read house map (each ward version) which listed the situation such as permission of construction about residential land development construction regulation area and permission of construction about residential land development.

For specific content in a specific location, please contact the person in charge of each area.