Low bid price investigation system (applies to construction work in which the successful bidder is determined through a comprehensive evaluation competitive bidding method and demolition work with a planned price exceeding five million yen)
Setting of survey base prices (excluding tax)
Civil engineering works (general civil engineering works, civil engineering mechanical equipment works, and civil engineering electrical equipment works)
100% of direct construction costs + 90% of common temporary facilities costs + 90% of site management costs + 70% of general management costs, etc.
Total amount (rounded down to the nearest thousand yen)
Maintenance work (architecture work, maintenance machinery and equipment work, maintenance electrical equipment work and demolition work)
100% of (direct construction costs - equivalent of on-site management costs) + 90% of common temporary facilities costs + 90% of (on-site management costs + equivalent of on-site management costs) + 70% of general management costs, etc.
(The site management cost is 10% of the direct construction cost.)
Total amount (rounded down to the nearest thousand yen)
Regarding the setting of the benchmark price (excluding tax)
Civil engineering and construction general works
Survey base price (excluding tax) x 0.98
Demolition work
Not applicable
