We are the client on an NEC3 ECC Option A (priced contract with activity schedule) and have provided the design. There does not seem to be a provision for value engineering proposals by the contractor. Would it be acceptable to add one in but not adjust the prices as it will cost us time and money to have the works re-designed?
There is now provision in NEC4 ECC for such proposals to be submitted by the contractor. These are found in clause 16 and the client determines the amount of value engineering percentage in the tender documents that is used in calculating the reduction in prices. The time and cost of re-design, whoever is to do this, must still be a factor in considering the proposals.