Construction Loan: How to Finance Building a Home in 2026
A construction loan is a short-term loan — typically 6 to 18 months — that finances building or substantially renovating a home, released to the builder in staged advances ("draws") as work is completed and inspected. During the build, you pay interest only on what has been drawn. At completion, the loan either converts into a standard 30-year mortgage (a construction-to-permanent loan) or is paid off with a separate purchase-style mortgage (a standalone construction loan).
This guide covers the four main product types, 2026 qualifying standards, draw-schedule mechanics with a worked $400,000 example, the two-appraisal requirement, and government-backed paths (FHA 203(k), VA, USDA). Opendoor Home Loans does not originate construction loans — this guide is neutral, meant to help you pick the right product first.
Key Takeaways
- Construction loans fund building or substantially renovating a home in staged draws over 6–18 months, with interest-only payments on the amount drawn. At completion, the loan converts to a 30-year mortgage (C2P) or is paid off with a separate permanent loan (standalone).
- Most conforming C2P loans require 20–25% down, 680+ FICO (720+ preferred), a DTI at or below 43%, and 6–12 months of PITI in cash reserves — the bar sits above a purchase mortgage because the lender holds credit risk during the build.
- The permanent mortgage in a C2P must fit under the 2026 FHFA conforming limit — $832,750 baseline, up to $1,249,125 in high-cost counties — or you need a jumbo construction loan.
- The appraisal step on a Fannie Mae C2P generally involves an initial as-completed appraisal (sizes both the interim advances and the permanent loan) plus a Form 1004D completion report at the end of the build. A second full appraisal is required only when significant changes occurred during construction. If as-completed comes in low, the borrower brings the difference in cash.
- Government-backed options exist — FHA 203(k) at 3.5% down, VA construction at 0% down for veterans, USDA one-time-close at 0% down in rural areas — but the active-lender network is small.
What Is a Construction Loan? (2026 Definition)
A construction loan is a short-term product — typically 6 to 18 months — that funds building a new home or a substantial renovation, released in staged draws as work is completed and inspected. GSE guidance sits in the Fannie Mae Selling Guide B5-3.1-01, Conversion of Construction Financing; the CFPB's plain-language definition is the reader-facing equivalent. Construction loans differ from purchase mortgages in three ways: staged draws instead of one closing wire; portfolio-held or GSE-purchased only after conversion; and collateral that's land plus a promise rather than a finished house. That collateral-risk difference is why the qualifying bar sits higher and the interim rate runs above the prevailing 30-year conforming rate.
The Four Types of Construction Loans
Construction loans come in four main product types: construction-to-permanent (one closing, converts to a 30-year mortgage), standalone construction (two closings, requires a separate permanent mortgage at completion), owner-builder (borrower acts as their own general contractor), and renovation (FHA 203(k) or Fannie Mae HomeStyle for substantial rehab of an existing home).
| Product | Closings | Down payment (typical) | Best for | Governing rule |
|---|---|---|---|---|
| Construction-to-Permanent (C2P) | 1 | 20–25% | Ground-up new build, one-time close | Fannie Mae B5-3.1-01 |
| Standalone Construction (Two-Time Close) | 2 | 20–25% | Buyers who want to shop the permanent rate later | Fannie Mae B5-3.1-02 |
| Owner-Builder | 1 or 2 | 25–30%+ | Licensed contractors building their own home | Lender-portfolio; no GSE program |
| Renovation Loan (203(k) / HomeStyle) | 1 | 3.5% (203(k)) or 3–5% (HomeStyle) | Buying + rehabbing or refinancing to rehab | HUD 4000.1 §II.A.8 / Fannie B5-3.2 |
Construction-to-Permanent (C2P) — the Default for Custom Builds
C2P is the standard path for ground-up construction: one closing at the start, converting automatically to a permanent 30-year (or 15-year) mortgage at completion. Fannie Mae B5-3.1-01 governs the conversion — modified note, final appraisal, permanent-loan LTV based on the lesser of as-completed value or total acquisition cost.
The permanent mortgage must fit under the 2026 conforming limit — $832,750 baseline, up to $1,249,125 in high-cost counties per the FHFA 2026 CLL release dated November 25, 2025. Above that, you need a jumbo construction loan (portfolio product, ~25% down, 720+ FICO, 12+ months reserves) — see our jumbo mortgage guide. C2P programs either lock the permanent rate up front or float with a 60–90 day lock window before completion.
Standalone Construction Loan (Two-Time Close)
Two closings — first the short-term construction loan, then a separate permanent mortgage at completion. Fannie Mae B5-3.1-02 governs the take-out. Standalone wins when rates are expected to fall during the build or when the borrower doesn't fully qualify today but will (a self-employed borrower crossing the 2-year track record, for example). It loses by duplicating closing costs ($5,000–$15,000) and re-underwriting risk between closings.
Owner-Builder Construction Loan
An owner-builder loan lets the borrower act as their own GC — saving 15–25% on soft costs but taking on the workload of subs, permits, and schedule. Most lenders refuse this borrower. The ~10 national lenders that will underwrite one generally require an active GC license OR experience building at least one home, 25–30%+ down, 720+ FICO, and a builder-of-record insurance policy. Programs typically include an interest reserve so the borrower isn't paying interest-only out of pocket while working full-time on the build.
Renovation Loan (FHA 203(k) and Fannie Mae HomeStyle)
Renovation loans finance the purchase (or refinance) of an existing home plus a defined rehab budget released in draws. FHA 203(k) covers at least $5,000 of rehab on a 1–4 unit primary residence at 96.5% LTV, 3.5% down for 580+ FICO, per HUD Handbook 4000.1 §II.A.8 — Standard allows structural work with a mandatory consultant; Limited caps rehab at $75,000 non-structural for case numbers assigned on or after November 4, 2024 (raised from the prior $35,000 cap per HUD Mortgagee Letter 2024-13). See what is an FHA loan and how does it work. Fannie Mae HomeStyle Renovation is the conventional-conforming analog under Fannie Mae Selling Guide B5-3.2 — 620 FICO, 3–5% down for a primary residence, max renovation the lesser of 75% of as-completed value or the structural completion cost cap. Unlike ground-up C2P, you close on the property at the start and the rehab budget sits in escrow.
How the Draw Schedule Works ($400,000 Worked Example)
A construction loan releases funds in staged draws — typically 4 to 6 payments during a 6–12 month build — timed to milestones and released only after a lender-ordered inspection verifies the completed work. An illustrative 5-draw schedule on a $400,000 hard-cost budget (land already owned; soft costs and contingency funded separately):
| Draw | Stage | % of budget | Dollar amount | Cumulative drawn |
|---|---|---|---|---|
| 1 | Foundation + slab / basement complete | 15% | $60,000 | $60,000 |
| 2 | Framing + roof dried-in | 25% | $100,000 | $160,000 |
| 3 | Mechanicals (rough plumbing, electrical, HVAC) | 20% | $80,000 | $240,000 |
| 4 | Drywall + interior finishes (cabinets, flooring, paint) | 25% | $100,000 | $340,000 |
| 5 | Final: fixtures, punch list, Certificate of Occupancy | 15% | $60,000 | $400,000 |
Draw fees run $150 to $400 per draw. Interest-only math during the build: you pay interest only on the amount drawn to date, illustrated at 7.75%:
| Month | Cumulative drawn | Monthly interest-only payment (7.75% / 12) |
|---|---|---|
| Month 2 (after Draw 1) | $60,000 | ~$388 |
| Month 4 (after Draw 2) | $160,000 | ~$1,033 |
| Month 6 (after Draw 3) | $240,000 | ~$1,550 |
| Month 8 (after Draw 4) | $340,000 | ~$2,196 |
| Month 10+ (after Draw 5) | $400,000 | ~$2,583 |
Rates illustrative — anchor to Freddie Mac PMMS for current 30-year fixed context; construction rates typically run 100–150 basis points above PMMS during the interim. Many C2P programs also allow an interest reserve — estimated total interest is calculated up front and added to the loan amount, so the borrower makes no out-of-pocket payment during construction. Useful when rent or an existing mortgage already stresses cashflow. See mortgage payment on a 400k house for how the permanent payment looks after conversion.
2026 Construction Loan Rates and How They're Priced
Construction loan rates during the interim (build) phase typically run 100 to 150 basis points above the prevailing 30-year conforming rate — the lender is holding credit risk on partially built collateral. At conversion, the C2P permanent rate resets to either the rate locked up front or the market rate at completion.
| Loan type | Interim (build) rate | Permanent rate (post-conversion) |
|---|---|---|
| Conforming C2P | ~7.5%–8.5% | ~6.75%–7.25% (locks 60–90 days before completion) |
| Jumbo C2P (above $832,750 permanent) | ~7.75%–8.75% | ~6.85%–7.35% |
| FHA 203(k) | Same as permanent (single-close) | Prevailing FHA rate |
| VA Construction | Same as permanent (single-close) | Prevailing VA rate |
| USDA One-Time-Close | Same as permanent (single-close) | Prevailing USDA rate |
Rates illustrative — verify at Freddie Mac PMMS. For broader mechanics, see how mortgage rates work. Fannie and FHA both allow a 10–20% contingency line on top of the hard-cost budget — committed capacity you draw against only if costs run over the bid.
Qualifying: Credit, DTI, Down Payment, Reserves
Most construction loans require 680 FICO (720+ for best pricing), DTI at or below 43%, 20–25% down (against the lesser of total project cost or as-completed value), and 6–12 months of PITI in cash reserves after closing.
| Metric | Conforming C2P | Jumbo C2P | FHA 203(k) | VA Construction | USDA One-Time-Close |
|---|---|---|---|---|---|
| Minimum FICO | 680 (720+ preferred) | 720 (740+ preferred) | 580 (500–579 = 10% down) | Lender-set (typically 640) | 640 typical |
| Maximum DTI | 43–45% | 43% | 43% (up to 50% w/ comp. factors) | Lender-set (residual income) | 41% |
| Down payment | 20–25% | 20–25% | 3.5% | 0% (VA entitlement) | 0% (rural, income-eligible) |
| Reserves | 6–12 months PITI | 12+ months PITI | Lender-set | Lender-set | Lender-set |
| Appraisals | As-completed + 1004D at completion | As-completed + 1004D at completion | 1 (as-completed) | 1 (as-completed) | 1 (as-completed) |
| Governing rule | Fannie B5-3.1 | Lender portfolio | HUD 4000.1 §II.A.8 | VA Lenders Handbook Ch. 3 | USDA HB-1-3555 Ch. 12 |
Down payment measured against the higher denominator. Lenders use the lesser of total project cost (land + hard construction + soft costs) or as-completed appraised value. If your $500,000 project appraises at $475,000, you get 80% of $475,000 = $380,000 and bring the $25,000 gap in cash.
Reserves math. On a $500,000 C2P at 7.0% with $6,000/year taxes and $2,400/year insurance, monthly PITI is ~$4,027 — 6 months of reserves means ~$24,000 in verified liquid assets on top of down payment and closing costs. Retirement balances get a 30–40% haircut. See how much mortgage can I afford. Self-employed borrowers face heavier documentation — see self-employed mortgage.
The Appraisal Step: As-Completed + Form 1004D at Completion
On a Fannie Mae C2P, the standard appraisal path is an initial as-completed appraisal (based on plans and specs) that sizes both the interim advances and the permanent loan, followed by Form 1004D — Appraisal Update and/or Completion Report at the end of the build to certify the property was built substantially per the plans and specs relied on for the original appraisal. A second full appraisal is required only when significant changes occurred during construction — for example, a materially different square footage, room count, or specification level (Fannie Mae Selling Guide B5-3.1). Some lender overlays add a separate as-is or lot-only opinion when the borrower already owns the land; that's a lender policy, not a GSE requirement.
Per Fannie Mae B5-3.1-01, the permanent-loan LTV is based on the lesser of as-completed value or total acquisition cost. That's where cost overrun risk hits the borrower directly — if the build costs 15% more than the appraiser assumed, the extra typically comes out of the borrower's pocket. If as-completed comes in low, bring more cash, request a value re-review with additional comps, or restructure the build. Budget an extra 14 to 21 days for appraisal-related back-and-forth.
Government-Backed Construction Loans: FHA, VA, USDA
The FHA, VA, and USDA all offer single-close construction loans — 3.5%, 0%, and 0% down respectively — but the active-lender network is much smaller than conventional C2P.
FHA 203(k) Rehabilitation Loan
Governing rule: HUD Handbook 4000.1 §II.A.8. The 203(k) is renovation-only — purchase or refinance plus at least $5,000 of rehab on an existing 1–4 unit primary residence at 96.5% LTV, 3.5% down for 580+ FICO. Standard 203(k) allows structural work with a mandatory HUD-approved consultant; Limited caps rehab at $75,000 non-structural with no consultant — the cap was raised from $35,000 effective for case numbers assigned on or after November 4, 2024 per HUD Mortgagee Letter 2024-13. The FHA also has a separate New Construction / C2P program under §II.A.7, but almost no lenders offer it.
VA Construction Loan (Ground-Up, 0% Down)
Governing rule: 38 CFR § 36.4350 and the VA Lenders Handbook (VA Pamphlet 26-7) Chapter 3. Under full VA entitlement, eligible veterans can get a single-close VA construction loan at 0% down, no monthly mortgage insurance, VA funding fee applied. Only about 15 to 20 lenders in the U.S. actively originate VA construction loans — most VA lenders offer purchase and IRRRL refinance only, so veterans building typically call 5 to 10 lenders before finding one that says yes. The builder must obtain a VA Builder ID, provide a 1-year warranty, and follow VA/HUD-approved plans.
USDA One-Time-Close Construction Loan
Governing rule: USDA Rural Development Handbook HB-1-3555, Chapter 12 — Construction-to-Permanent Financing under Section 502 Guaranteed Loan authority. Income-eligible borrowers in USDA-designated rural areas can get a single-close construction loan at 0% down combining construction financing and the permanent USDA Guaranteed Loan. Both property location and household income must qualify — check at the USDA eligibility site. Like VA, the set of lenders offering one-time-close is much smaller than the broader USDA-approved list.
When You Actually Need a Construction Loan (and When You Don't)
You need a construction loan if you're building ground-up on a lot (C2P), buying an existing home that needs $5,000+ of substantial rehab (FHA 203(k) or HomeStyle), a veteran building on land (VA construction, 0% down), or a rural, income-eligible buyer building on qualifying land (USDA one-time-close, 0% down).
You may not need one if you have substantial existing equity — a HELOC or home-equity loan is usually simpler and lower closing cost for $50,000–$200,000 renovations (see what is a HELOC and the HELOC vs. home-equity loan comparison) — or if rates are near your existing note (a cash-out refinance can fund the work without a specialized construction product). For small renovations ($20,000–$50,000), a personal loan usually beats the closing cost of either. For the post-conversion permanent-mortgage payment, see mortgage payment on a 500k house and the 700k version for buyers close to the jumbo threshold.
How to Shop for a Construction Loan
- Line up the lender before the builder. Get pre-approved, understand the builder-approval process, then contract. Many borrowers sign a builder contract and only then discover the lender won't approve the builder.
- Verify the builder is on the lender's approved list. Approval requires 2+ years in business, active license, references, builder's-risk insurance — and can take 30 to 60 days for a new builder.
- Get quotes from 3–5 lenders including a national bank with an active construction program, a regional bank, a mortgage broker who accesses portfolio lenders, and a credit union. Skip lenders whose "construction loan" is really a HELOC.
- Ask about the interest reserve, contingency line, and draw fees — all three are quietly baked in by many lenders.
- Confirm the rate-lock window and C2P conversion terms. On a 9-month build with a 90-day lock, plan for at least one relock.
For fundamentals, see how to get a mortgage. First-time buyers pursuing FHA 203(k) or USDA one-time-close should also review our first-time home buyer mortgage guide.
Disclosure
Opendoor Home Loans LLC. Products, programs, rates, and terms are subject to change without notice and may not be available in all markets. Opendoor Home Loans does not originate construction loans. This material is provided for informational purposes only and is not an offer or guarantee of credit. All rate examples, draw-schedule figures, qualifying standards, and loan-limit numbers are illustrative or reference public sources as of publication; verify current conforming loan limits at fhfa.gov and current rates at Freddie Mac PMMS. Consult a licensed mortgage professional before making a decision that involves your specific financial situation.
