Demonstrate to the owner how you made the mistake. Show them material or labor take-offs, subcontractor pricing, etc.Can the bid be withdrawn? That depends on certain statutory factors, which we have set forth and formatted below for easy use as a checklist. Prior to its invitation for bids, the public entity must prepare complete and accurate plans and specifications and estimates of cost, giving such directions as. This conclusion is enforced, absent extraordinary circumstances, even where the subcontractor's bid contains a mistake or error. September 6, 2012 at p.m. Two days after the opening, the plaintiff bidder sent a letter notifying the district it had made a clerical error in its bid and requesting withdrawal. Owner-Builder B-General Building Construction Project Experience.