Loan-to-Cost Ratio

Loan-to-cost, or LTC, compares a proposed loan with the total eligible cost of a project, and it is widely used in construction and development lending. Divide the loan amount by the defined project cost and multiply by 100 to express a percentage, so a $7 million loan on a $10 million project has an LTC of 70%.

The calculation is simple, but deciding what belongs in the cost base requires care. A project budget may include land acquisition, hard construction costs, professional fees, permits, financing costs and a contingency, and the lender's definition of eligible cost governs its decision.

Some spending may be excluded, capped or valued differently, particularly a land contribution bought years earlier, so ask for the lender's written definition rather than assuming every historical expense counts as equity. LTC answers how much of the budget the lender is financing: in the 70% example, $3 million of the budget must be funded from other sources, which could include investor equity, proceeds from other permitted sources or value accepted by the lender, and it is not necessarily a $3 million cash deposit on day one.

Loan-to-value, or LTV, uses a value estimate rather than a cost estimate in the denominator. A project costing $10 million might have an independently appraised completed value of $12 million, so a $7 million loan would show 70% LTC and about 58.3% LTV.

Neither metric replaces the other, and the completed-value appraisal remains an estimate, not a guaranteed sale price. Wall Street Prep explains the LTC formula and its use in construction financing, and Investopedia also describes it as a project-financing measure, though these are general explanations and not an offer from a lender.

Limits depend on lender policy, asset type, location, borrower strength and the deal structure, so there is no universal cap that every developer should use in a model. A borrower should prepare a cost breakdown before requesting a loan, separating confirmed contract prices from estimates and showing who funds each line, because if the contractor's quote omits utilities, permits or fit-out, the denominator is understated and the loan looks like a larger share of the true project cost than the initial spreadsheet suggests.

Cost overruns create two different questions. If the loan stays at $7 million while total cost rises from $10 million to $11 million, the arithmetic LTC falls to about 63.6%, yet the project needs another $1 million, so the borrower may face a serious funding gap.

A lower numerical LTC after overruns is not proof the project became safer, and if the lender raises the loan to cover the gap, recalculate using both updated figures and check the covenant definition. A contingency is money set aside for uncertain costs, not a free source of profit, and its size should reflect design maturity, construction complexity and the contract.

Loan draws may be tied to completed work and inspections, and the lender may not advance the full approved amount at closing, so a borrower can be required to contribute equity first or alongside loan draws. Build a monthly cash-flow schedule so contractors can be paid before reimbursement arrives, recalculate when scope, land assumptions or funding sources change, and keep LTC beside LTV, cash needs and the planned exit so no one mistakes one ratio for the entire financing risk.