The quick read: You finance a build-to-suit net lease development with a commercial construction loan that the lender underwrites on the signed lease and the tenant's credit as much as on the dirt. It is sized on loan-to-cost, tested against the as-completed value, funded only after your equity is in, and repaid by a planned exit: a sale to a net-lease buyer, a forward-committed permanent loan, or a credit tenant lease loan matched to the lease term.
As of: October 6, 2026 (CFR 2025 editions, the OCC Comptroller's Handbook and the Wikipedia credit tenant lease entry read this date)
Loan type: commercial construction loan, drawn against inspected progress, repaid by a sale or a permanent takeout
Bank supervisory LTV, commercial construction: 80% (12 CFR Part 34, Subpart D, Appendix A)
HVCRE exemption contribution: at least 15% of appraised as-completed value, before the bank advances funds (12 CFR 324.2)
Appraisal basis for a preleased project: as-completed value should generally be used (OCC Comptroller's Handbook, Appendix C)
Credit tenant lease loan term: typically coterminous with the lease (Wikipedia, credit tenant lease)
This guide covers the development stage only. For a finished, leased building, see the single-tenant NNN financing guide; for a multi-tenant pre-leased project, see financing a pre-leased commercial building.
What makes a build-to-suit loan different from a speculative construction loan?
A build-to-suit construction loan differs from a speculative one because a tenant has already signed a long-term lease for a building designed to its specification, so the lender underwrites a known rent stream and a named credit instead of projected absorption, and that changes the appraisal basis, the leasing test and the exit.
The OCC's Comptroller's Handbook on commercial real estate lending (Version 2.0, March 2022) notes that while properties may be built for sale or lease to a purchaser or tenant that has already been identified, properties are often built on a speculative basis. A build-to-suit sits on the identified side of that line.
The appraisal follows. The handbook's appendix on supervisory loan-to-value limits says that for a property to be constructed that is preleased, the as-completed value should generally be used, while an as-stabilized value would be appropriate for a property to be constructed that is not preleased to stabilized levels. A fully leased single-tenant building has no lease-up period to discount.
The tradeoff is concentration. One tenant means one credit, one lease and one building shaped around one user. The handbook says manufacturing facilities are often built to accommodate a specific user's needs, and that the adaptability of the building to meet the needs of other potential users is an important underwriting consideration.
How does a signed lease change construction leverage?
A signed lease with a creditworthy tenant supports leverage by giving the lender a defined net operating income to value and test, but it does not change the federal rules: banks work under an 80% supervisory LTV limit for commercial construction, exceeded only for a capped share of loans, and a 15% contributed-capital test for avoiding HVCRE treatment.
The interagency guidelines in 12 CFR Part 34, Subpart D, Appendix A (2025 edition) set an 80% supervisory loan-to-value limit for commercial, multifamily and other nonresidential construction. It is a supervisory limit, not a typical term: a bank may make loans above it based on other credit factors, but the aggregate amount of all loans in excess of the supervisory limits should not exceed 100 percent of total capital.
Capital is the second rule. Under 12 CFR 324.2, a construction loan avoids high volatility commercial real estate treatment when its loan-to-value is within the supervisory maximum and the borrower has contributed capital of at least 15 percent of the appraised as-completed value, in cash, unencumbered readily marketable assets, paid development expenses out-of-pocket, or contributed real property or improvements, before the bank advances funds. The OCC handbook says HVCRE loans carry a risk-weight of 150 percent of capital under the standardized approach.
The handbook also says prudent policies set loan limits as a maximum percentage of cost as well as market value, so the borrower contributes sufficient equity, and that equity be contributed before disbursements commence. Deferred developer's profit and unearned developer fees are generally not considered equity.
Hypothetical example: an $8,000,000 budget for a single-tenant building appraised at $10,000,000 as completed. Contributed capital of 15 percent of as-completed value is $1,500,000, which leaves a $6,500,000 loan, about 81 percent of cost and 65 percent of value. A site you already own counts toward that contribution at its appraised value.
What does a construction lender read in the build-to-suit lease?
A construction lender reads the build-to-suit lease for how long the rent runs, when it starts, who pays which expenses, what the landlord must build before rent commences, and every right the tenant has to terminate, reduce rent or stop operating, because those clauses decide whether the rent the loan is underwritten on will actually arrive.
The OCC handbook gives examiners the property-type version of that reading. For single-tenant industrial properties, it says leases are usually written on a net basis with the landlord responsible for maintaining only the roof and outer walls, and that lease agreements should always be reviewed to determine which expenses are the landlord's responsibility. For retail, it notes anchor tenants often sign leases of 20 to 25 years with options to renew.
The go-dark question comes from the same retail discussion. The handbook says a flat rent should be high enough to dissuade a tenant from ceasing operations while maintaining possession, and that it is desirable for an anchor tenant's lease to require continued operations so the tenant may be replaced if it ceases to operate. It adds that some clauses permit termination if an anchor ceases operations.
What the lender will mark up:
Term: the primary term remaining at completion, and whether it outlasts the permanent loan
Rent commencement: the delivery conditions, and what happens to rent if the building is late
Landlord work: the specification, tenant approval rights and any tenant allowance the budget must carry
Termination and go-dark rights: early termination options, continuous-operation covenants and co-tenancy triggers
Expense split: who carries roof, structure, taxes, insurance and maintenance
Which lender types finance build-to-suit development, and how do their terms compare?
Five lender types finance build-to-suit net lease development: local and regional banks, credit unions, life-company forward commitments that fix the permanent loan, private debt funds, and credit tenant lease lenders on the exit. Only the bank row carries dated public leverage rules; every other term is quoted deal by deal.
Table: Build-to-suit net lease development financing by lender type (framework, not a ranking)
| Lender type | Leverage basis (dated public figure where one exists) | Lease prerequisite | Recourse | Exit |
|---|---|---|---|---|
| Local or regional bank | 80% supervisory LTV for commercial construction (12 CFR Part 34, Subpart D, App. A, 2025 edition); HVCRE treatment unless LTV is within the supervisory limit and at least 15% of as-completed value is contributed before funding (12 CFR 324.2, 2025 edition) | Set by bank policy; the OCC says prudent policies set minimum preleasing as a condition of commitment or funding | Quoted per deal; completion guaranties are common | Sale, bank term loan, or a forward commitment |
| Credit union | No dated public benchmark found; set by the credit union's commercial lending policy | Credit union policy | Quoted per relationship | May be the credit union's own term loan; confirm before closing |
| Life company forward commitment | Not a construction lender; commits to refinance the construction loan on completion and, almost always, lease-up (OCC handbook) | Performance criteria such as lease-up to break even or better at minimum rental rates | Term loans from life insurers are commonly nonrecourse (OCC handbook) | It is the takeout; such term loans usually run 10 years or more at fixed rates (OCC handbook) |
| Private debt fund | No dated public benchmark found; quoted per deal | Quoted per deal | Ask about carve-out and completion guaranties | Sale or refinance inside an initial term with extension tests |
| Credit tenant lease lender | Sized on the lease rent and the tenant's credit; loans typically coterminous with the lease (Wikipedia, credit tenant lease) | A long-term lease, usually triple net, to a tenant with exceptionally good credit | Typically nonrecourse to the landlord | It is the permanent loan |
No dated public source we found publishes build-to-suit construction rates, spreads, fees or net-lease cap rates by lender type, so this page prints none.
What guaranties and construction protections will the lender require?
Expect a construction lender to ask for a completion guaranty, a fixed-price or guaranteed-maximum-price contract, payment and performance bonds or title protection, and proof that the guarantor can actually pay, because the OCC says construction loans finance the creation of collateral with repayment dependent on completion.
The handbook says some guarantees are limited in nature, such as construction completion only, and tells examiners to test whether a guarantor has both the willingness and ability to support the credit. A guarantor's unpledged assets should not be considered a substitute for project equity.
On cost risk, it says a bank can require a fixed-price contract with the contractor, and if the borrower and contractor are related, the contract should specify cost plus a fee with a guaranteed maximum price. A payment bond mitigates the risk of priority liens, a performance bond insures completion, and title insurance can protect the lender from losses due to fraud and construction liens.
Nonrecourse permanent debt is not obligation-free. The handbook notes a nonrecourse guarantee is usually executed with carve-out provisions for bad acts such as fraud, voluntary bankruptcy and environmental issues, and some carve-outs make the loan full recourse.
How do you exit the construction loan: sale, forward commitment or credit tenant lease loan?
You exit a build-to-suit construction loan in one of three ways: sell the leased building to a net-lease buyer, refinance with a permanent loan that a life company or other lender committed to before construction, or close a credit tenant lease loan sized on the rent and matched to the lease term.
The construction lender will underwrite the path you choose.
Forward commitment: the handbook says it provides a commitment to refinance a construction loan upon future completion and, almost always, lease-up, frequently from a life insurance company, and usually lets the borrower lock a fixed rate in advance. Standby commitments are back-up financing whose fee structure and rate may be intended to dissuade the borrower from using them.
Both carry conditions. The handbook says they require completion of construction and, in most cases, performance criteria such as lease-up to break even or better at minimum rental rates, and that underwriting would ordinarily include analysis of the risk should the take-out commitment not be funded.
Credit tenant lease loan: Wikipedia describes a credit tenant lease as one that carries sufficient guarantees that lenders perceive the rent cash flows as reliable as a corporate bond. The lease is usually triple net, the loan is typically structured as nonrecourse debt, and the loans are typically coterminous with the lease.
Permanent sizing: the OCC handbook says a lower debt service coverage ratio may be appropriate for properties with stable and certain cash flows, such as those with long-term net leases to highly creditworthy tenants. Sale: a buyer prices the lease, so the same clauses the construction lender marked up set your exit value.
Have a signed lease and a site? What a construction lender needs
A construction lender needs the executed lease with every exhibit, the tenant's financial statements, the site and entitlements, plans and a line-item budget with contingency and interest reserve, the contractor and contract type, proof of equity, and your exit plan before it will quote a build-to-suit net lease development.
Add personal financial statements for each guarantor and any forward-commitment term sheet you already hold. Compare structures on the construction loans and NNN loans pages.
YieldStack is a commercial mortgage brokerage, not a lender. It costs Zero upfront to submit a deal and review offers; YieldStack's broker fee is 0.50–1.00% of the loan amount and is paid only at closing. Every credit decision is made by the lender; YieldStack arranges the introductions and negotiates on the borrower's side, and no loan, rate, or closing is guaranteed. Submit your build-to-suit deal with the package above, and the deal team will route it to the lender types whose current programs fit the project.
The bottom line
A build-to-suit net lease development is financed on loan-to-cost, checked against the as-completed value, with equity in before the first draw. Banks work under an 80% supervisory LTV limit for commercial construction, which they may exceed only for a limited share of loans, and at least 15% contributed capital, in before funding and with LTV inside that limit, keeps the loan out of HVCRE treatment. The lease is the collateral that matters: its term, rent commencement, go-dark and termination rights set both the construction loan and the exit, whether a sale, a forward commitment or a credit tenant lease loan.