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Information for rainwater penetration masu setting subsidy program in house

We promote rainwater penetration masuno setting in house to cultivate groundwater in Yokohama-shi, and to keep waterside and green in good condition, and to succeed good water regime in the next generation. The furtherance amount of money improved this year.

Last update date May 7, 2019

About grant object

We issue in (individual, corporation) such as owners of the building which is going to set up rainwater penetration masuo in house adapting to rainwater penetration facility setting standard (PDF: 1,375KB) in processing area concerned.
But we become a target of rainwater penetration masunomi, the furtherance in house meeting condition of "rainwater penetration masu setting examination confirmation in house". We show an example of the condition below.

  • Place that becomes the possible ground in "penetration facility setting judgment map"
  • Place with separation with building and the rainwater penetration masu outside 30 centimeters or more
  • Place where drainage method of setting place is arm of a river type, and residential land becomes higher 40 centimeters or more than road in the case of groove having U-shaped flow youngest drainage

The above is one case. For more details, please confirm "rainwater penetration masu setting examination confirmation (PDF: 76KB) in house".
※ We can read "penetration facility setting judgment map" in Environmental Planning Bureau duct line Maintenance Section and each ward engineering works office other than administrative map information "daichan map" (the outside site).

About the outside targeted for grant

The following cases are out of grant.

  • When group according to country, these local public entity or other establishes rainwater penetration masuo in house
  • When regulations of the regulations about adjustment of the Town Planning and Zoning Act and Yokohama-shi development projects are applied (when it takes development by new construction of house), and rainwater penetration masuno setting in house becomes condition
  • When, within the past ten years, we change rainwater penetration masuo in house which we receive the furtherance (grant, city of grant constructs and establishes rainwater penetration masuo) from Yokohama-shi and installed (in the case of existing masuno change not to be accompanied by new construction)
  • When we establish connection rainwater penetration masuo

About the furtherance amount of money

The furtherance amounts of money of per rainwater penetration masu one in house and one are as follows.
The number that we can apply for sets a ceiling of the number confirmed by drainage (flush lavatory remodeling) plan confirmation application.

Sum of grant
  Sum of grant
The masuno inside diameter

Rainwater penetration masuo in house

When we found

Rainwater penetration in existing masuo house

When we change masuni

Procedure expenses
Φ 150mm 15,000 yen/ 28,000 yen/

Less than 50,000 yen
(per one)

Φ 200mm or more 18,000 yen/ 31,000 yen/

Flow of procedure

About application of grant

When you apply for grant, please submit "rainwater penetration masu setting subsidization application in Yokohama-shi house" (the first style) to each ward engineering works office. Please attach documents to raise next on this occasion.

  • Quotation (we have you submit from drainage-designated construction shop) which breakdown understands
  • Guide map
  • Ground plan
  • Rainwater penetration masu setting examination confirmation in house
  • Copying of drainage (flush lavatory remodeling) plan confirmation application. But we remove case that can omit confirmation application procedure for plan of drainage to fix for Yokohama-shi sewer regulations Article 4.
  • Written consent (when building is belonging to joint ownership, please submit)
  • Documents that other mayors admit that they are necessary

About decision of grant

About application and attached documents, we examine in Motoichi. When it is admitted that grant is suitable, by "rainwater penetration masu setting subsidization decision notification in Yokohama-shi house" (No. 2 style), we notify applicant. You install after accepting this notification, and please construct.

About submission of report of completion

When rainwater penetration masuno setting construction in house was completed, please submit the following documents to each ward engineering works office.

  • "Rainwater penetration masu setting construction completion notice in rainwater penetration masu setting grant house in Yokohama-shi house" (No. 7 style)
  • Copy of receipt (thing which knows the setting construction cost when receipt is not issued)

But the No. 7 style mentioned above is unnecessary when we submit drainage (flush lavatory remodeling) construction completion registration form.

About on-site confirmation, decision of the amount of grant

After the submission of completion registration form and receipt, we perform on-site confirmation. After on-site confirmation, we notify applicant of the furtherance amount of money by mail by "the amount of rainwater penetration masu setting subsidization decision notification in Yokohama-shi house".

About submission of bill

With "the amount of rainwater penetration masu setting subsidization decision notification in Yokohama-shi house", we will send style of bill by mail. After filling out transfer, we would appreciate your sending back immediately.
When transfer is completed, all procedures become the end.

About application style

Adobe Acrobat Reader DC (old Adobe Reader) is necessary to open file of Portable Document Format.
Person who does not have can download free of charge from Adobe company.
Get Adobe Acrobat Reader DCTo downloading of Adobe Acrobat Reader DC

Inquiry to this page

Environmental Planning Bureau sewer duct line part duct line Maintenance Section

Telephone: 045-671-2830

Telephone: 045-671-2830

Fax: 045-641-5330

E-Mail address [email protected]

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Page ID: 912-760-871

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