Boundary confirmation procedure

Last Updated October 13, 2023

Q&A related to boundary confirmation is posted at the bottom of this page.

Confirmation of boundary with Water Works Bureau property

The Yokohama City Waterworks Bureau owns land in and outside Yokohama City.
The flow for those who own the land adjacent to these lands to check the boundaries is as follows.
Water Works Bureau does not provide proof of boundaries.

１．Window consultation

We provide window consultation on the land owned by the Water Works Bureau.
Window consultation is available at any time at the Water Works Bureau Asset Utilization Division Ledger conservation (city hall 20th floor, Phone number:045-671-3659).
If you make a telephone reservation in advance before coming to the agency, you can smoothly check the boundary status of the land owned by the Water Bureau and the management map owned by the Water Bureau.
The management drawings owned by Water Works Bureau are used as reference materials. It does not prove the boundary.
In addition, the local management of the land owned by the Water Bureau is performed separately by the section in charge (hereinafter referred to as the “Local Management Section”). .

２．Request for Boundary Meeting

As a result of window consultation, if boundary confirmation is necessary, please submit a boundary meeting request form to the Water Bureau.
Documents to be submitted regarding boundary confirmation (boundary witness) are as follows. For more information, please contact the Asset Utilization Division Ledger conservation.

Boundary witness request form (word: 19KB)

[Sample] Current status measurement chart (PDF: 32KB)

If due to circumstances, if you decide to withdraw after submitting a request to the Water Works Bureau, you will be required to submit a withdrawal form.
If a withdrawal form is submitted, the Boundary Attendance Request Form (including attached documents) will be returned.

Withdrawal Form (word: 19KB)

３．Boundary Party

Based on the actual measurement of the current situation, a boundary meeting will be held on site. The witness of the Water Bureau will be the staff of the Asset Utilization Division and the Local Management Division.
At the boundary meeting, you will be asked to measure the distance between points indicated in the actual measurement map.
If it is necessary to restore the landmarks, we will also check the restored locations.
If the consent of the related parties is obtained regarding the landmarks to be confirmed, please make a draft of the land boundary confirmation document.
In addition, depending on the boundary witness point, the adjacent landowner may submit a boundary witness confirmation.
For more information, please contact the Asset Utilization Division Ledger conservation.

Boundary witness confirmation (for neighboring landowners) (Excel: 11KB)

４．Exchange of confirmation of land boundary

The boundary witness requester and the Water Road Bureau will exchange a confirmation of land boundary, and the boundary confirmation procedure will be completed.
For details on the contents of the land boundary confirmation, please contact the Asset Utilization Division Ledger conservation Section.

[Sample] Land Boundary Confirmation Form (PDF: 30KB)

Q&A related to boundary confirmation

This is a Q&A regarding the boundary confirmation procedure with land owned by City of Yokohama, Water Works Bureau.
If you have any problems with the boundary confirmation procedure, please contact the Water Works Bureau Asset Utilization Division Ledger conservation (city hall 20th floor, Phone number:045-671-3659).

Frequently Asked Questions
Number	Question	Answer
1	Could you tell me if the boundary between the Water Works Bureau property and the adjacent land is fixed?	You can check the status of boundary confirmation by window consultation. Water Works Bureau Asset Utilization Division Ledger conservation (city hall 20th floor, Phone number: 045-671-3659) At the counter, we provide information on the status of boundary confirmation of the land owned by the Water Bureau and the management map owned by the Water Bureau. In addition, it may take some time to investigate the boundary confirmation situation, so it is recommended that you make a telephone reservation in advance before visiting the agency.
2	Can I issue a certificate if the boundary between the Water Works Bureau property and the adjacent land is determined?	The boundary of the land owned by Water Works Bureau is confirmed by the exchange of land boundary confirmation between the adjacent land owner and the Water Works Bureau. For this reason, there is no such thing as a certificate of boundary determination.
3	I previously exchanged a land boundary confirmation with Water Works Bureau. Is it possible to receive a copy?	If you are exchanging land boundary confirmations, you can obtain a copy of the land boundary confirmations stored in Water Works Bureau upon request for disclosure of administrative documents. We have prepared two copies of the same document, one for the applicant (owner of the land adjacent to the Water Works Bureau property) and one for the Water Works Bureau. In addition, by applying for a new boundary confirmation (submission of a boundary witness request form), it is also possible to exchange a land boundary confirmation again. [Note] A copy of the land boundary confirmation document will be deleted from some related parties' seal impression etc. from the viewpoint of protecting personal information. When requesting the disclosure of a copy of the land boundary confirmation, it is recommended that the relevant parties (such as the Legal Affairs Bureau when used for land registration) confirm in advance whether the copy of the seal impression has been erased.
4	Do you have any documents (documents, drawings, etc.) that show the boundary between the Water Works Bureau property and the adjacent land?	If there is a land management map for managing the land owned by Water Works Bureau, a copy of the land management map will be provided as reference material when consulting the counter.
5	Regarding the land owned by Water Works Bureau, which is currently used as a road, please tell us about land boundaries and road areas.	On the land owned by Water Works Bureau in and outside Yokohama, there are places where the current situation is used as roads and road managers (Public Works Office, etc.) manage roads. In such a case, the person in charge of each confirmation item is as follows. For more information, please contact us. Confirmation of land boundary ... Water Works Bureau Confirmation of road areas: Road managers (Public Works Office, etc.)
6	Is the attached documents original at the request of the border witness?	A copy of the official map and a copy of the certificate of all matters (land) shall be the original or copy within three months after issuance at the registry office. Other attached documents shall be the original or copy. In addition, when using the documents obtained by the registration information provision service, since the registrar has not been certified, it is written in the name of the land and house investigator that is not different from the original, and the investigator seal is stamped Must be.
7	Can you return the original attached documents at the request of the border?	The original will not be returned unless the application has been withdrawn.

For inquiries regarding water supply, please contact the Water Works Bureau Customer Service Center.

Water Works Bureau Customer Service Center

Telephone: 045-847-6262 Fax: 045-848-4281
※Please be careful not to make a mistake.

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