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Explanation on the Flood Control Law (explanation of important matters, etc.)

Last Updated October 1, 2024

Due to a partial revision of the Enforcement Regulations of the Residential Land and Building Transaction Business Law (enforced on August 28, 2020), the location of the residential land or building subject to transaction in the flood hazard map created based on the Flood Control Law is newly described in the explanation of important matters. Will be positioned as an item.

Wai Wai Disaster Prevention Map (Yokohama City Administration Map Information Providing System) 

If the inundation assumption of the hazard map is difficult to see in terms of resolution, you can enter Address etc. from the Wai Wai Disaster Prevention Map (Yokohama City Administrative Map Information Providing System) (outside site) to enlarge and view the area. .

Creation status of hazard maps based on Article 15 of the Flood Control Law in Motoichi

The creation status of hazard maps based on Article 15 of the Flood Control Law is as follows. ※( ): Date of creation, ○: Created, x: No creation
Name of wardFlood Hazard Map Inland water hazard maphigh tides Hazard Map
Tsurumi Ward○(October 2024)X (not based on the Flood Control Law)○(October 2024)
Kanagawa Ward○(October 2024)X (not based on the Flood Control Law)○(October 2024)
Nishi Ward○(October 2024)X (not based on the Flood Control Law)○(October 2024)
Naka Ward○(October 2024)X (not based on the Flood Control Law)○(October 2024)
Minami Ward○(October 2024)X (not based on the Flood Control Law)○(October 2024)
Konan Ward○(October 2024)X (not based on the Flood Control Law)○(October 2024)
Hodogaya Ward○(October 2024)X (not based on the Flood Control Law)○(October 2024)
Asahi Ward○(May 2022)X (not based on the Flood Control Law)There is no plan to create it because there is no inundation potential area map.
Isogo Ward○(October 2024)X (not based on the Flood Control Law)○(October 2024)
Kanazawa Ward○(October 2024)X (not based on the Flood Control Law)○(October 2024)
Kohoku Ward○(October 2024)X (not based on the Flood Control Law)○(October 2024)
Midori Ward○(May 2022)X (not based on the Flood Control Law)There is no plan to create it because there is no inundation potential area map.
Aoba Ward○(May 2022)X (not based on the Flood Control Law)There is no plan to create it because there is no inundation potential area map.
Tsuzuki Ward  ○(May 2022)X (not based on the Flood Control Law)There is no plan to create it because there is no inundation potential area map.
Totsuka Ward○(May 2022)X (not based on the Flood Control Law)There is no plan to create it because there is no inundation potential area map.
Sakae Ward○(March 2024)X (not based on the Flood Control Law)There is no plan to create it because there is no inundation potential area map.
Izumi Ward○(May 2022)X (not based on the Flood Control Law)There is no plan to create it because there is no inundation potential area map.
Seya Ward○(May 2022)X (not based on the Flood Control Law)There is no plan to create it because there is no inundation potential area map.

※The inland water hazard map is not based on the Flood Control Law, but when dealing with residential land or buildings, present this inland water hazard map, and the other party of the transaction grasps the flood risk, and evacuates to heavy rain on a daily basis. Please provide information on the location of residential land and buildings subject to the transaction so that it can be used for such purposes.

About difference between "Wai Wai disaster prevention map (Yokohama-shi administrative map information reporting system)" and "hazard map"

・Wai Wai Disaster Prevention Map (Yokohama City Administration Map Information Providing System): We publish inundation assumption area map which Kanagawa prefecture made. (Article 14-2 of the Flood Control Law)
※It cannot be positioned as a hazard map only with the inundation assumption area map.

・Hazard Map: The inundation area map created by Kanagawa Prefecture, etc., contains information on how to transmit flood forecasts, evacuation sites, etc., and is prepared and publicized. (Article 15 of the Flood Control Law)
※When you want reading on paper, please see in city hall the third floor citizen information center.

Related link

Inquiries to this page

Regional Disaster Prevention Section, General Affairs Bureau Crisis Management Department

Telephone: 045-671-2011

Telephone: 045-671-2011

Fax: 045-641-1677

Email address: so-chiikibousai@city.yokohama.jp

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Page ID: 168-327-442

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