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Construction multiplication information

Last update date June 17, 2020

In City of Yokohama, Housing and Architecture Bureau, we devise the multiplication points in reference to the Ministry of Land, Infrastructure, Transport and Tourism "public building construction multiplication standard" and "public building construction common costs multiplication standard" about construction cost multiplication of construction except housing construction and, in information about this construction cost multiplication, announce the following. In addition, in Yokohama-shi, we multiply construction cost using repairs multiplication system (RIBC2).

Constitution of construction cost


(1) Common costs

As for the common costs, "common temporary construction costs" consist of "the spot management fee" and "administrative expenses" like upper figure, and ratio (rate) in these construction is street of rate list (PDF: 84KB).
Common costs of Yokohama-shi are decided in reference to "the Ministry of Land, Infrastructure, Transport and Tourism public building construction common costs multiplication standard".

(2) The labor unit price

The labor unit price depends on public construction design labor unit price setting in Yokohama-shi.
Please refer to Motoichi Road and Highway Bureau homepage public construction design labor unit price list of "public works design, construction-related material" for the labor unit price.

(3) Materials unit price

It is design materials unit price that Yokohama-shi investigates materials unit price announcing originally and set.
About contents of public announcement, we can read in citizen's information center.
In addition, we do not publish about "monthly construction prices" that are commercially available from Investigation Committee for construction prices and Investigation Committee for economy and price published in "monthly multiplication material".

(4) The multiplication point, multiplication manual

(5) About repairs multiplication system (RIBC2)

Repairs multiplication system is system to multiply using personal computer to multiply construction cost of public building. Building cost control system research institute develops this system and, including country, many local governments introduce and can use drawing office and construction construction company by rental now. But, among material unit price and hokakari rinadono multiplication data, it is necessary to maintain originally about data which are not published by country, the local government.
In Yokohama-shi, we multiply construction cost using this system. For more details, please refer to homepage (the outside site) of building cost control system research institute.

(6) About downloading of construction design book

About construction design book which we can download from door (the outside site) of Yokohama, bid, we say only with PDF file in all city handling in total after June 1, 2013. Software such as Adobe Acrobat is necessary on conversion to Excel separately.

(7) Construction multiplication itemized statement

About multiplication itemized statement of Housing and Architecture Bureau construction that we contracted, we can read to the price list in citizen's information center. [reading period is until the end of the month of the next month of) on successful bidder decision day (contract day.]

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

Housing and Architecture Bureau community Building Department repairs Planning Division

Telephone: 045-671-2956

Telephone: 045-671-2956

Fax: 045-664-5477

E-Mail address [email protected]

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Page ID: 817-907-514

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