GMP contract overview for commercial real estate: contractor guarantees a maximum project price, affecting loan sizing and risk allocation.
A Guaranteed Maximum Price (GMP) contract is a construction agreement where the contractor guarantees that the project cost will not exceed a specified maximum amount, with exceptions defined in the contract. Under a GMP, the contractor takes responsibility for cost overruns beyond the agreed cap, while savings may be shared as outlined in the agreement. In CRE lending, lenders favor GMPs because they increase cost predictability and reduce the borrower’s exposure to budget overruns, but the contract must clearly define scope, exclusions, contingency handling, and change order procedures.
Sponsors should use a GMP contract when lenders or investors require a higher degree of budget certainty. A GMP must be coordinated with the loan budget, cost-to-complete analyses, and contingency reserves so that the lender’s underwriter can reasonably estimate completion risk. Borrowers should negotiate clear definitions of exclusions, allowances, and change order pricing to prevent disputes. Lenders will typically review GMP terms, contractor qualifications, and performance bonds to ensure the GMP is enforceable and that the contractor has the capacity to absorb potential overruns.
GMP contracts materially affect project financing because they shift a substantial portion of cost risk to the contractor, improving predictability for lenders and owners. This risk transfer can enable tighter loan-to-cost ratios and reduce the need for large borrower contingencies. However, GMPs can result in higher initial bids and require rigorous contract management; vague exclusions or poorly defined change order processes can reintroduce risk. For lenders, a well-drafted GMP supported by contractor financials, bonds, and insurance provides meaningful protection against budget creep.