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Energy-saving housing assistance system (this system was finished on February 24, 2023)

※ Please note that repairs including exterior wall painting (including heat shielding and insulation type) and replacement of exterior walls and roofs are not covered by this subsidy project.  Please confirm this business summary, the point, and business guidance handbill about assistance target.

Last Updated March 28, 2024

Implementation in FY2023

■In 2023, we will implement the "Energy Saving Housing Relocation Aid System". (March 30, 2023)
 In addition, about energy saving repair work of house, we may be able to use the following system that we carry out in country.
 Please refer to it for your reference.
[Housing Energy Conservation 2023 Campaign] (Ministry of Land, Infrastructure, Transport and Tourism, Ministry of the Environment, Ministry of Economy, Trade and Industry)
 https://jutaku-shoene2023.mlit.go.jp/ (outside site)

■Please see the following page for information on site tours of newly built and renovated houses with assistance in 2022.
  Information on energy-saving housing site tours

Progress

■The energy-saving housing assistance system for fiscal 2022 has been closed. (February 24, 2023) 
 Overview of the System
Business Guide Handbill (PDF: 402KB)
[Reference Materials] (PDF:329KB)
Please access "Kids Mirai Housing Support Project" from the following URL.
https://kodomo-mirai.mlit.go.jp/manufacturer/search/ (external site)

1 Purpose

 In order to realize a decarbonized society, it is important to promote measures such as new construction of high insulation and airtight houses to be constructed in the city and energy-saving renovation of existing houses with a larger stock than newly built houses. I am.
 In this project, we aim to spread houses with few indoor temperature differences, which are the basis of "energy saving" and "healthy" homes, and to build and renovate high insulation and high airtight houses with insulation performance grades 6 and 7 such as insulation. We will create a model through assistance and cooperate in acquiring various data for dissemination and enlightenment. At the same time, by subsidizing renovations to improve the energy-saving performance of existing houses, we will guide measures against global warming of existing houses in the private housing market.
 By carrying out these assistances, the purpose is to promote initiatives such as improvement of technical skills such as city companies and spread enlightenment to citizens.

2 Subsidy target and subsidy upper limit amount

After confirming the supporting requirements by prior consultation, please select the supporting type to apply.
 ※For details, please refer to the outline of this business, guidelines, and business guide leaflet.

List of assistance targets and assistance requirements
Subsidized targets and requirementsMaximum amount of subsidy
[New construction] <Subsidized target> Housing to be built in Yokohama City

<Auxiliary requirements>
In the case of a single-family house (full all (a) to (c) below)
 (a) Average heat flow rate of outer skin is 0.26W/(m2/K) or less (Grade 7)
 (b) The airtightness is measured, and the equivalent gap area (C value) is 1 cm2/m2 or less.
 (c) In BELS,☆☆☆☆☆
         In addition, houses that have been evaluated and certified by ZEH.

2 million yen

In the case of a single-family house (full all (a) to (c) below)
 (a) Average heat flow rate of outer skin is 0.46W/(m2/K) or less (Grade 6)
 (b) The airtightness is measured, and the equivalent gap area (C value) is 1 cm2/m2 or less.
 (c) In BELS,☆☆☆☆☆
         In addition, houses that have been evaluated and certified by ZEH.

1.5 million yen

In the case of apartments (all (a) to (c) are satisfied)

 (a) Average heat flow rate of outer skin is 0.36W/(m2/K) or less
 (b) To measure airtightness
 (c) In BELS, ☆☆☆☆☆ Housing that has been evaluated and certified
600,000 yen

[Renovation] <Subsidized target> Being a house with earthquake resistance in Yokohama City
          (Including those whose seismic retrofitting is completed by the time the construction is completed.)

<Auxiliary requirements>
In the case of a single-family house (full all (a) to (c) below)
 (a) Average heat flow rate of outer skin is 0.26W/(m2/K) or less (Grade 7)
 (b) To measure airtightness
 (c) Acquisition of BELS

2 million yen

In the case of a single-family house (full all (a) to (c) below)
 (a) Average heat flow rate of outer skin is 0.46W/(m2/K) or less (Grade 6)
 (b) To measure airtightness
 (c) Acquisition of BELS

1.5 million yen

In the case of apartments (all (a) to (c) are satisfied)

 (a) Average heat flow rate of outer skin is 0.36W/(m2/K) or less
 (b) To measure airtightness
 (c) Acquisition of BELS
600,000 yen

In the case of a single-family house or apartment house
 (All of the following (a) to (a) must be satisfied)

 (a) Average heat flow rate of outer skin is 0.87W/(m2/K) or less
 (b) Acquisition of BELS

Single-family homes: 500,000 yen

  Condominium: 150,000 yen

※We cannot use energy saving repair assistance business of country ("child Mirai house support business" or "insulation reform support business in existing house") together.

In the case of a single-family house or apartment house
 For all openings of one or more rooms and multiple openings, etc.
 Housing, etc. that meets the specifications standards

Single-family homes: 500,000 yen

  Condominium: 150,000 yen

※We cannot use energy saving repair assistance business of country ("child Mirai house support business" or "insulation reform support business in existing house") together.

※ Application types 1, 2, 4, and 5 include tenement houses with 2 or less that are rational to treat as single-family houses.

3 Number of subsidies

We will recruit the following numbers for each number in the table above as a guide.
 ①And 4 : About 5 cases (including one target frame only for renovation work) [Reception end]
 ②And 5 : About 5 cases (including one target frame only for renovation work) [Reception end]
 ③And 6 : About 30 cases (of which 25 are limited to those in which the applicant is a corporation) [Reception is closed]
 ⑦And 8 : About 20 cases [Reception is closed]
※The number of cases is a guide, and the application will be closed when the budget is reached.

4 Cooperation in dissemination and awareness

 We would like assistance target person to cooperate with spread enlightenment to raise next.
 Subsidiary target who carried out construction of subsidy target 1-6
  ・Provision of temperature and humidity measurement data for 12 months after entry or renovation
  ・Measurement of indoor surface temperature
  ・Provision of energy consumption data such as electricity and gas for 12 months after entering or renovating
  ・Answers to questionnaire about two places of living after entering or renovating
  ・Designer's understanding of matters considered in design
  ・Explanation of the construction contractor regarding matters considered in the construction
  ・Conduct an academic conference for the market and business operators during and at the time of completion.
  ・In addition, initiatives necessary for the spread and enlightenment of energy-saving housing
 Subsidized persons who have implemented construction of subsidized 7-8
  ・Data records of energy consumption (electricity and gas) for 12 months before and after renovation
  ・Evaluation of housing health before and after renovation (evaluation using the CASBEE Health Checklist)
 ※Please submit "Consent Form (word: 15KB) pertaining to spread enlightenment of energy saving house spread promotion business".

About the academic conference for the market and business operators during and at the time of completion

It will be held sequentially from September 25th. We will inform you of the tour on the following URL page.
https://translate-en.city.yokohama.lg.jp/kurashi/sumai-kurashi/jutaku/sien/shoene/seminar/ecohousekengakukai.html

5 Order destination for the target works

 If the construction cost (tax included) for eco-renovation etc. is 1 million yen or more, an order from a city operator (the head office and head office are in Yokohama city) is required.
In addition, for items 1 to 6, in houses, etc. that carry out subsidized construction, the outer skin average heat penetration rate does not change other conditions such as design and structure from the specifications of the applied outer skin average heat penetration rate, and the outer skin average heat penetration rate Estimates of two or more companies are required, including estimates calculated by comparing the cost of building materials when the specification is about 0.6.

6 Flow of Procedures

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7 Outlines, applications, etc.

[Summary / Procedure]

Energy saving house spread promotion business Yokohama-shi energy saving house assistance system summary (PDF: 262KB)

Energy saving house spread promotion business Yokohama-shi energy saving house assistance system conduct point (PDF: 293KB)

 Forms of Application Forms
Please refer to the following.
[At the time of application]

Examination confirmation checklist (PDF: 437KB) (Summary / Non-Guideline style)
※I have a summary of required documents, so please look at the checklist and check the documents.

Subsidy grant application (word: 19KB) (summary first style)

Breakdown table (word: 15KB) of subsidy application amount (the point first style)

Estimate (Excel: 16KB) (Guideline No. 2 style)  
※Please refer to this description method (PDF: 394KB) in addition to the description example of another Excel sheet when creating a quote.

Breakdown table of the amount of assistance application (Excel: 26KB) (Guideline No. 3 style)
Letter of consent pertaining to spread enlightenment (word: 15KB) (Guideline No. 4 style)
Construction photo book mount (Excel: 14KB) (Summary, non-procedure style)
[After construction is completed and payment of construction costs is completed]
Construction completion results report (word: 15KB) (Summary No. 6 style)
Breakdown of contract amount (word: 14KB) (reference style)
[After grant of the subsidy decision letter]
Subsidy grant bill (word: 18KB) (summary eighth style)
[When we change business plan]
Subsidy grant change application (word: 13KB) (summary third style)
[When canceling a business]
Notification of business cancellation (word: 13KB) (Summary No. 5 style)
[When proxy/agent is applied]
Power of Attorney (reference style) (word: 18KB)
[Description paper for matters considered in design and construction]
Design considerations (word: 14KB)
Matters considered in construction (word: 14KB)

 Other forms, etc.
Please refer to the following.
Data record table of energy consumption (electricity and gas) before and after renovation (Excel: 37KB)
Evaluation of housing health before and after renovation (CASBEE Health Checklist) (outside site)
(Incorporated Foundation for Building Environment and Energy Conservation (IBEC) website)

Example of description
Please refer to it when preparing the application documents.

Subsidy grant application (PDF: 199KB) (Summary No. 1 style)
Breakdown table of the amount of assistance application (PDF: 87KB) (Guideline No. 1 style)
Construction completion results report (PDF: 325KB) (Summary No. 6 style)
Subsidy grant bill (PDF: 280KB) (Summary No. 8 style)
Letter of consent (PDF: 174KB) pertaining to spread enlightenment of energy-saving house spread promotion business (the point fourth style)

8 About meetinghouse eco-renovation assistance system

 You may be able to use this system for energy-saving renovations at the Neighborhood Association Neighborhood Associations Hall and meetinghouses.
 Meetinghouse eco-renovation assistance system homepage

9 About reduction measures of property tax, city planning tax

 Reduction measures for property tax and city planning tax may be applied to houses where energy-saving renovation work has been completed.
 Specifically, please see page of Yokohama-shi Finance Bureau property tax section.
 ※When applying, it is necessary to meet requirements such as the year of construction of the house and the required documents.
 ※A declaration must be made within 3 months from the completion date of construction.

You may need a separate PDF reader to open a PDF file.
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Inquiries to this page

Housing Policy Division, Building Bureau Housing Department

Telephone: 045-671-2922

Telephone: 045-671-2922

Fax: 045-641-2756

Email address: kc-jutakuseisaku@city.yokohama.jp

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Page ID: 813-463-013

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