A completion guaranty is a sponsor promise, given to a construction lender, that the project will be finished on time, on budget, and free of liens. The guarantor covers cost overruns and completes the improvements if the borrower cannot. It survives on a non-recourse loan even when repayment does not, because a half-built asset has no takeout.
What Is a Completion Guaranty?
A completion guaranty is a separate agreement in which a creditworthy sponsor guarantees lien-free completion of a construction project according to the approved plans, budget, and schedule. Per Barbri and the Mondaq construction-lending summary, the guarantor covers cost overruns and finishes the improvements if the borrower defaults, protecting the lender from an unfinished, unsellable asset.
The guaranty exists because a construction loan funds an asset that does not yet exist. Per Scotsman Guide, a completion guaranty ensures the project is built to approved plans and specifications by a set date, and if the borrower stalls the guarantor must supply the funds or resources to finish. Lenders often bolt on a carry component covering debt service, taxes, and insurance until the project stabilizes.
Per the Mondaq summary, a lender holding a completion guaranty typically has one or more of three remedies: require the guarantor to complete construction, complete the work itself and bill the guarantor, or collect a "liquidated damages" payment equal to the estimated cost to complete less undisbursed construction proceeds.
Element | Typical treatment |
Guaranteed obligation | Lien-free completion per approved plans, specifications, and budget |
Cost overruns | Guarantor funds any excess over allocated construction proceeds |
Carry component | Often added: debt service, taxes, insurance until stabilization |
Trigger | Borrower default or failure to complete on schedule |
Lender remedies | Force completion, complete-and-bill, or liquidated damages |
Why a Completion Guaranty Matters
A completion guaranty matters because it converts completion risk, the single largest risk in ground-up development, into a personal or corporate obligation the lender can enforce. Per the Mondaq summary, an unfinished project is often worth less than the land alone, so the lender needs a solvent party contractually bound to finish rather than a foreclosure on a construction site.
The quotable point for a sponsor: a completion guaranty is usually the one guaranty a non-recourse construction borrower cannot negotiate away, because no lender will fund a hole in the ground without a named party obligated to fill it. Guarantor net worth and liquidity are underwritten directly, since the guaranty is only as good as the person behind it.
Example
A sponsor builds a $30,000,000 project. The lender allocates $18,000,000 of the loan to hard construction costs and takes a completion guaranty. Steel and labor inflation push actual construction costs to $21,000,000, a $3,000,000 overrun. The borrower has no additional equity, so the lender invokes the guaranty.
Item | Amount |
Loan proceeds allocated to construction | $18,000,000 |
Actual construction cost | $21,000,000 |
Cost overrun | $3,000,000 |
Undisbursed construction proceeds at default | $2,000,000 |
Guarantor liquidated-damages exposure | $1,000,000 |
The $3,000,000 overrun exceeds the $18,000,000 allocation. If the lender chooses the liquidated-damages remedy, the guarantor owes the estimated cost to complete less undisbursed proceeds. With $3,000,000 still needed to finish and $2,000,000 of loan proceeds undisbursed, the guarantor writes a check for the $1,000,000 gap. Had the lender instead demanded full completion, the guarantor would fund the entire remaining build.
Variations and Edge Cases
A completion guaranty is not uniform: its scope, carry obligations, and burn-off terms shift with the sponsor, the asset, and the lender. Some cover only cost overruns, others require full physical completion, and many add a carry component that outlasts construction. The table below covers variants a guarantor should confirm before signing.
Variant | Treatment |
Cost-overrun-only guaranty | Guarantor covers overruns but not physical completion itself |
Carry guaranty add-on | Guarantor also funds interest, taxes, and insurance until stabilization |
Burn-off | Guaranty terminates at lien-free completion or a defined milestone |
Springing to full recourse | Some documents convert completion default into full loan liability |
Force majeure | Delays from events beyond the sponsor's control may excuse timing, not cost |
The common mistake is treating a completion guaranty as covering only construction. Read against a carry component, the guarantor may owe debt service on the full loan for every month the project runs late, an exposure far larger than the visible construction budget.
Completion Guaranty vs Payment Guaranty
A completion guaranty is often confused with a payment guaranty, and the two cover different risks. A completion guaranty obligates the guarantor to finish the project lien-free and fund cost overruns. A payment guaranty, also called a repayment guaranty, obligates the guarantor to repay the loan itself if the borrower defaults, exposing the guarantor's assets to the full debt.
The distinction is what gets guaranteed: performance versus money. Per Scotsman Guide, a completion guaranty is about building the asset, while a repayment guaranty is about paying back the loan. A non-recourse borrower often gives a completion guaranty and a bad-boy carve-out guaranty while avoiding a full payment guaranty, because the first two do not put the entire loan balance on the sponsor personally.
Frequently Asked Questions
What does a completion guaranty cover?A completion guaranty covers lien-free completion of a construction project according to the approved plans, budget, and schedule, plus any cost overruns above the loan proceeds allocated to construction. Many also include a carry component covering debt service, taxes, and insurance until the project stabilizes. It does not, by itself, guarantee repayment of the loan.
What are a lender's remedies under a completion guaranty?Per the Mondaq construction-lending summary, a lender typically has three remedies: require the guarantor to complete construction at its own expense, complete the work itself and bill the guarantor, or collect a "liquidated damages" payment equal to the estimated cost to complete less any undisbursed construction proceeds. The loan documents specify which remedies apply.
Is a completion guaranty required on a non-recourse construction loan?Yes, almost always. A completion guaranty is usually the one guaranty a non-recourse construction borrower cannot negotiate away, because a lender will not fund an unbuilt asset without a solvent party contractually obligated to finish it. Repayment may be non-recourse, but completion rarely is.
Related Terms
Construction Loan
Non-Recourse Loan
Bad Boy Carve-Outs
Mechanic's Lien
Permanent Loan