Construction-to-Perm Loans for Spec Homes: How to Finance from Groundbreak to Sale in 2026

Building a spec home from the ground up is one of the most capital-intensive bets a real estate investor can make. You are committing six figures before you have a single buyer. The land, the permits, the framing, the finishes — all of it comes out of pocket or out of a loan before you see a dime of revenue. That is where a construction-to-perm loan changes the math.

If you are a builder, developer, or real estate investor looking to build and sell (or build and hold), understanding how construction-to-perm financing actually works is one of the most valuable things you can do for your 2026 project pipeline. Ready to explore your options now? Apply in 2 minutes at slatefinancial.io/apply.

What Is a Construction-to-Perm Loan?

A construction-to-perm loan — sometimes called a one-time-close or single-close construction loan — is a financing product that covers two phases under one loan agreement:

• Phase 1 (Construction): Funds are drawn in stages as the build progresses. You pay interest only on the amount drawn, not the full loan balance.
• Phase 2 (Permanent): Once the certificate of occupancy is issued, the loan automatically converts to a permanent mortgage — typically a 30-year fixed or a DSCR rental loan if you plan to hold.

This is different from a standalone construction loan, which requires you to refinance entirely into a new mortgage after completion. A one-time-close product means one application, one appraisal, one closing — and that saves time and money.

Who Uses Construction-to-Perm Loans on Spec Homes?

The primary users are:

• Spec builders who purchase a lot, build without a pre-committed buyer, and sell on the open market.
• Custom home builders who have a buyer under contract but need bridge financing through the build phase.
• Investor-developers who plan to convert the finished home into a long-term rental, pulling cash out at stabilization via the permanent phase.

Spec builds carry more lender risk than a custom build with a signed purchase agreement. That means underwriting standards are tighter, and lender selection matters a great deal. Funding is subject to lender approval and individual project qualifications.

How Draw Schedules Work on a Spec Build

This is where most first-time spec builders get tripped up. A draw schedule is the mechanism by which funds are released during construction. Lenders do not hand over a lump sum on day one. They release funds in tranches tied to completion milestones.

A typical five-draw schedule looks like this:

1. Draw 1 — Foundation: Released after the foundation is poured and inspected. Usually 10-15% of the loan amount.
2. Draw 2 — Framing: Released once the structure is framed, roofed, and dried in. Another 20-25%.
3. Draw 3 — Rough-Ins: Plumbing, electrical, and HVAC rough-in complete. Another 15-20%.
4. Draw 4 — Drywall and Mechanicals: Interior work progressing, inspections passed. Another 20%.
5. Draw 5 — Completion: Certificate of occupancy issued, punch list complete. Final 20-25%.

Each draw typically requires a lender inspection. That means a third-party inspector (or bank rep) walks the site, confirms progress, and approves the release. Budget 3-7 days per draw for the inspection-and-release cycle. If your GC is running behind or if inspections fail, draws get delayed and your project timeline stretches.

Pro tip: negotiate your draw schedule before closing. Some lenders offer more flexible milestone definitions that align better with your GC’s billing cycle.

What Lenders Look for on a Spec Construction Loan

Underwriting a spec build is not the same as underwriting a purchase or a cash-out refi. Lenders are evaluating the project as much as the borrower. Here is what they examine:

1. Loan-to-Cost (LTC)

Most lenders cap at 75-85% of total project cost (land + construction). If your land is worth $150,000 and your build budget is $400,000, the total project cost is $550,000. At 80% LTC, the lender covers $440,000. You bring $110,000 to close.

2. Loan-to-Value After Completion (LTV-AC)

Lenders also run an “as-completed” appraisal to determine what the finished home will be worth. They typically lend no more than 65-75% of that figure. If comps in your market support a $700,000 ARV, max loan at 70% LTV-AC is $490,000. Whichever of LTC or LTV-AC produces the lower number becomes your actual loan cap.

3. Borrower Experience

On spec builds, lenders heavily weight your track record. Completed your first spec home in the last two years? That helps. First-time spec builder with no completed projects? Expect tighter LTC, higher rates, and more documentation requirements.

4. General Contractor Qualifications

Most lenders will require your GC to be licensed, insured, and in many cases pre-approved by the lender. Unlicensed contractors or owner-builders face additional scrutiny. Have your GC’s license number, certificate of insurance, and project references ready at application.

5. Detailed Budget and Draw Schedule

Lenders want a line-item construction budget, not a back-of-the-napkin number. Break it down: foundation, framing, roofing, rough-ins, drywall, finishes, landscaping, permits, contingency. A 10% contingency reserve is standard. Some lenders build it in; others require you to fund it separately.

Rates and Terms in 2026

Construction loan rates are typically higher than conventional mortgage rates because the lender is taking on more risk — the collateral (a finished home) does not yet exist. In the current rate environment, construction phase rates generally run 1-3% above conventional 30-year fixed rates, though exact terms vary widely by lender, loan size, borrower profile, and project type. No rate quotes here — your specific terms depend on your file. Funding is subject to lender approval.

Loan terms during the construction phase typically range from 9-18 months. At conversion to permanent, the loan moves to standard amortization — 15, 20, or 30 years depending on the product you lock at origination.

Construction-to-Perm vs Two-Close: Which Is Better for Spec Builders?

The debate comes down to flexibility versus simplicity.

One-close (construction-to-perm) advantages:

• One set of closing costs
• Rate lock at origination (protects against rate rises during build)
• No risk of failing to qualify for the permanent loan after completion

Two-close (standalone construction + separate perm) advantages:

• Flexibility to shop for the best permanent rate at completion
• Option to sell before conversion if the market is hot — you are not locked into a permanent loan
• Easier to qualify for the construction phase independently if your exit strategy is sale, not hold

For spec builders who plan to sell on completion, a two-close or pure construction loan is often the better fit. For investors planning to hold as a rental, construction-to-perm with a DSCR conversion is the cleaner path.

Not sure which product fits your project? Start at slatefinancial.io/apply and a funding specialist will walk you through the options.

How to Maximize Your Approval Odds

A few moves that consistently improve outcomes on construction loan applications:

• Get your GC lined up before applying. Lenders do not like placeholder contractors. Have a signed GC contract or at minimum a letter of intent.
• Prepare a detailed scope of work. Room-by-room, system-by-system. The more specific you are, the more confidence you give the underwriter.
• Order comps proactively. Know your ARV before you apply. Lenders appraise anyway, but borrowers who walk in with solid comp support tend to get stronger valuations.
• Show liquidity reserves. Lenders want to see that you can cover 6 months of interest payments from reserves, even if you plan to use draw proceeds. It is a sign that a draw delay will not stop your build.
• Disclose everything upfront. Credit events, prior project losses, environmental issues on the lot — anything that comes out in underwriting after you thought you had approval is worse than disclosing it at application.

What Happens If the Build Goes Over Budget?

Cost overruns are the spec builder’s biggest risk and the lender’s biggest concern. A well-underwritten loan includes a contingency reserve — typically 10% of hard construction costs — built into the loan amount or required as a borrower reserve.

If you blow past contingency, your options are: inject additional equity, negotiate a loan modification (lenders prefer this over a defaulting project), or find a supplemental capital source. The worst move is to stop construction. A half-built home is the hardest collateral a lender can recover. Most will work with you on an overrun before they will foreclose on a stalled build.

Ready to Finance Your Next Spec Build?

Construction-to-perm loans are specialized products. Not every lender offers them, and the ones that do have wildly different requirements, LTC caps, and rate structures. The fastest path to the right lender is to work with a broker who has active relationships across the private and institutional lending space.

At Slate Financial, we work with spec builders, investor-developers, and custom home builders across the country. We match your project profile to lenders actively deploying capital in your market and project type — so you are not wasting time on lenders who will decline on page two of underwriting.

Ready to fund your next deal? Apply in 2 minutes at slatefinancial.io/apply. Funding subject to lender approval. No guaranteed outcomes — individual results vary based on project, borrower profile, and market conditions.

Need Business Funding?

Slate Financial matches you with the best funding options. Apply in minutes.

Tags