The amount of money expended or required over and above budgeted costs in a construction project, including for such items as labor, interest, materials, etc
excess of cost over budget; "the cost overrun necessitated an additional allocation of funds in the budget
The amount by which a contractor exceeds or expects to exceed the estimated costs, and/or the final limitations (the ceiling) of a contract
Costs that are incurred for the project greater than authorized by the sponsor for reimbursement
excess of cost over budget; "the cost overrun necessitated an additional allocation of funds in the budget"