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  8. About condition change of company pertaining to collection of bid or estimate in earthquake-resistant assistance business (after April 1, 2021)

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About condition change of company pertaining to collection of bid or estimate in earthquake-resistant assistance business (after April 1, 2021)

Last Updated January 15, 2021

Emergency response to COVID-19 infection

In order to prevent the spread of COVID-19 infection, for the time being, we are also accepting applications by mail for application procedures.
If you have any questions, please contact us. Contact: 045-671-2943 (condominium), 2928 (specific buildings)


  • When you come to the counter, please cooperate with wearing a mask and disinfecting your fingers with alcohol disinfectant.
  • When the window is crowded, you may have to wait outside the office to avoid "close" or "dense". We will call you in order, so we apologize for any inconvenience, but we appreciate your cooperation.

Outline of the revision

 In the "Yokohama City Condominium Seismic Diagnosis Support Project", "Yokohama City Condominium Seismic Retrofit Improvement Promotion Project", and "Yokohama City Specific Building Seismic Retrofit Improvement Subsidy Project", in principle, if the amount of the project cost is 1 million yen or more In addition, it is necessary to collect bids or quotes from city businesses, but only until the end of 20202020, regardless of the end of the end of the city businesses, business, business, business, business expenses, seismic diagnosis, business operators can be able to perform seismic diagnosis, repair design, repair or construction supervision of the city operators, repair or construction supervision of the city operators, regardless of the city operators, regardless of the amount of the city operators.
 In order to complete the time-limited measures, we will revise the regulations as follows.

Conditions of the business pertaining to the collection of bids or quotes
Type of buildingBy the end of FY2020From FY2021 to the end of FY2025after 2026
Buildings that require seismic diagnosisRegardless of the amount of the project cost, seismic diagnosis, renovation design, seismic retrofitting, and construction supervision bidding or collection of quotes can be performed from non-city businesses in addition to city businesses.

(1) If the subsidized project is "seismic diagnosis" and "removal",

If the amount of the project cost is 1 million yen or more, the bid or the collection of the estimate must be performed by the city company.

(2) If the subsidized project is "renovation design", "seismic retrofitting" and "stage renovation",

Regardless of the amount of the project cost, bids for renovation design, seismic retrofitting and construction supervision or collection of quotes can be performed from non-city businesses in addition to city businesses.

If the amount of the project cost is 1 million yen or more, the bid or the collection of the estimate must be performed by the city company.
Other than buildings that require earthquake-resistant diagnosis

If the amount of the project cost is 1 million yen or more, the bid or the collection of the estimate must be performed by the city company.
However, bids or quotes can also be collected from the following businesses.

  • In the case of seismic retrofitting design, the company that conducts seismic diagnosis of the building concerned
  • In the case of construction supervision, the operator of the seismic retrofitting design of the building concerned
  • In the case of the second phase renovation work, the first phase renovation work of the building will be implemented.
  • In the case of the second or subsequent partial renovation work, the operator of the previous work of the building concerned
  • Businesses recognized by the mayor as particularly reasonable

Revised image

Conditions (image) of businesses pertaining to the collection of bids or quotes

  • With city company, person where location division in general competitive bidding qualified person list to prescribe in Yokohama-shi contract rule (March, 1964 Yokohama-shi rule 59th) Article 7 is in the city, registry The head office or the main office is not located, and the sole proprietor whose main business base is in the city and the group that is not registered in the registry.
  • Please note that after April 1, 2026, if the amount of the project cost is more than 1 million yen, all bids or quotations will be collected from city businesses in principle.

Condominium Seismic Diagnosis Support Project

New and old system outlines

Support system homepage

Condominium Seismic Retrofit Improvement Promotion Project

New and old system outlines

Support system homepage

Subsidiary projects such as seismic retrofitting of specific buildings

New and old system outlines

Support system homepage

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Inquiries to this page

Building Disaster Prevention Section, Housing and Architecture Bureau Planning Department

Telephone: 045-671-2943 (condominium), 2928 (specific buildings)

Telephone: 045-671-2943 (condominium), 2928 (specific buildings)

Fax: 045-663-3255

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

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Page ID: 405-167-743

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