Construction Loan Rates: How They're Set and Today's Benchmarks
There is no published consumer average for construction loans. As of November 9, 2026, the closest public benchmarks are prime 7.00% and the 30-year fixed mortgage average 7.18%. Ask the lender whether the construction rate is fixed, variable, or locked through conversion, and for a variable-rate offer, which benchmark and margin apply.
These benchmarks are not quotes; to estimate your costs, get a written quote and enter it in the calculator.
Estimate with your rateLast updated: November 9, 2026
Current rate benchmarks (as of November 2026)
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| Benchmark | Rate | As of | Source |
|---|---|---|---|
| Bank prime loan rate | 7.00% | October 27, 2026 (unchanged since September 17) | FRED DPRIME |
| Fed funds target range upper limit | 4.00% | September 17, 2026 (effective since) | FRED DFEDTARU |
| SOFR | 3.89% | November 6, 2026 | FRED SOFR |
| 10-year Treasury yield | 4.84% | November 5, 2026 | FRED DGS10 |
| PMMS 30-year fixed mortgage average | 7.18% | Week of November 5, 2026 | Freddie Mac PMMS |
| PMMS 15-year fixed mortgage average | 6.57% | Week of November 5, 2026 | Freddie Mac PMMS |
These are benchmarks, not offers. Construction pricing generally combines a benchmark plus a margin, with points and other charges affecting your total cost; your quote depends on credit, LTV, project, and lender. PMMS measures mortgage pricing, not construction loan offers, and the fed funds upper limit is a policy reference rather than your borrowing rate.
What builders are paying: NAHB survey (Q2 2026)
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| Loan type | Contract rate | Initial points | Effective rate |
|---|---|---|---|
| Land acquisition | 7.77% | 1.05% | 10.43% |
| Land development | 8.09% | 1.05% | 12.59% |
| Speculative single-family construction | 7.28% | 0.85% | 11.82% |
| Pre-sold single-family construction | 7.01% | 0.71% | 11.67% |
This is builder/developer acquisition, development, and construction financing, not owner-builder or consumer construction-to-permanent loan pricing. The contract rate is the stated loan rate; NAHB's effective rate folds initial points into the rate. Paying points on loans outstanding for only a short time pushes effective rates well above contract rates. Source: Paul Emrath, NAHB Eye on Housing, “Cost of Credit for Builders Up Since the End of 2025”, published August 13, 2026, reporting Q2 2026.
How a construction loan rate is built
A variable construction rate combines a benchmark, commonly prime or SOFR, with a lender margin. Lenders set that margin per borrower and project: ask for it in writing, together with the reset schedule, any floor or cap, and the exact benchmark definition.
Points and origination charges add upfront borrowing costs. Interest-only payments during construction generally apply to the drawn balance, so interest increases as funds are released; an interest reserve may fund these payments if your agreement allows it.
A construction-to-permanent (one-time-close) loan combines the construction and mortgage phases in one closing. Ask whether a permanent-rate lock is available, how long it lasts, and what extensions or float-down rights cost. A two-time-close structure uses a separate permanent mortgage, whose pricing and lock are arranged separately and may change before the home is finished. See our construction loan guide for the financing process.
What the rate means for your interest cost
Scenario: $500,000 project with $100,000 down ($400,000 loan), 12 equal monthly draws, then a 6.50% 30-year permanent mortgage. Computed with the same model as our home page calculator; illustrative margins, not quotes.
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| Construction rate | Interest in the final build month | Total interest during build | Permanent loan balance | Monthly payment after conversion (6.50%, 30-yr) |
|---|---|---|---|---|
| 7.00% (prime)Try this rate in the calculator | $2,333 | $15,167 | $400,000 | $2,528 |
| 8.00% (prime + 1, illustrative)Try this rate in the calculator | $2,667 | $17,333 | $400,000 | $2,528 |
| 9.00% (prime + 2, illustrative)Try this rate in the calculator | $3,000 | $19,500 | $400,000 | $2,528 |
| 11.67% (NAHB pre-sold effective rate, for comparison)Try this rate in the calculator | $3,890 | $25,285 | $400,000 | $2,528 |
These links prefill only the rate; loan amount and terms use the calculator defaults or your own entries.
Each month's interest = drawn balance × construction rate / 12; total construction interest is the sum over the build. Permanent payment = loan × m / (1 − (1+m)^−360), where m = permanent rate / 12.
The permanent balance is the loan amount only; construction interest is assumed to be paid during the build. The permanent payment is the same in every row because only the construction rate changes.
calculator version: lib/v1/engine.js, 2026-11-10
Model assumptions: draws are advanced at the start of each month, interest is paid monthly on the drawn balance and is not rolled into the permanent loan, and rates are fixed. Some loans capitalize interest or use an interest reserve, and fees, taxes and insurance are excluded. Results are rounded to whole dollars. The 11.67% NAHB effective rate includes points and is used only as a mathematical comparison, not as a consumer contract rate; points are not added again here.
Factors that change your rate
Credit Score
Stronger credit can improve pricing; weaker credit can increase the rate or limit available offers.
Down Payment
A larger down payment reduces lender exposure and can improve your terms.
Loan-to-Value Ratio
A lower LTV can improve pricing by reducing the loan relative to the completed property value.
Construction Timeline
A longer or less certain build increases exposure to delays, interest costs, and lock extensions.
Builder Experience
Licensed, experienced contractors and a documented track record can support stronger terms.
Market Conditions
Changes in benchmark rates, funding costs, and lender appetite affect available pricing.
How to get and compare construction loan quotes
- Prepare your project budget and plans using the construction loan checklist.
- Gather documents for land equity and your down payment.
- Provide the builder contract and draw schedule.
- Request written quotes for the same loan type, with matching rate-lock, float-down, and conversion terms.
- Use the calculator to estimate total interest, then add quoted fees separately to compare total borrowing costs.
How to compare construction loan offers
Compare written offers for the same amount, build timeline, and permanent term. Compare APR, not just the headline rate, while checking which costs and rate assumptions it includes. Use the loan comparison tool to compare terms.
- Benchmark and margin: ask how often the rate resets and whether it has floors or caps.
- Origination fees and points: confirm any one-time payment at closing; compare upfront dollars alongside APR and the time you expect to keep the loan.
- Draw and inspection fees: confirm charges paid per draw or inspection, inspection requirements, and how delays affect funding.
- Interest reserve: confirm whether interest is paid from cash or financed, and what happens if the reserve runs out.
- Rate lock: confirm any fee paid when extending a rate lock; compare lock length and float-down eligibility.
- Conversion terms: confirm any fee paid at conversion, completion requirements, permanent-rate pricing, and any new qualification or appraisal requirements.
Construction-to-Permanent
A one-time close combines construction financing with conversion to a permanent mortgage under the agreed terms. It can reduce duplicate closing work; confirm the rate-lock and conversion conditions.
Construction-Only
A separate construction loan is followed by a second closing for permanent financing. You can shop for that mortgage later, but must account for a second set of closing costs, qualification requirements, and future rate uncertainty.
Construction loan rates FAQ
What is the average construction loan interest rate?
The sources used on this page do not publish a consumer national average for construction loans; the figures below provide context rather than a consumer average. Nearby public reference points include the NAHB Q2 2026 builder survey: pre-sold single-family construction had a 7.01% contract rate and an 11.67% effective rate. Those are builder/developer loans, not consumer quotes. As of November 9, 2026, the available benchmarks above are prime at 7.00% (October 27 observation) and the PMMS 30-year fixed mortgage average at 7.18% (week of November 5).
Are construction loan rates higher than mortgage rates?
Many construction loans are priced off a benchmark such as prime or SOFR plus a lender margin during the build, so ask how your offer is priced. They can cost more, but there is no fixed spread to mortgage rates. As of November 9, 2026, prime is 7.00% and the PMMS 30-year fixed average is 7.18%; prime alone excludes the construction lender’s margin and fees, so these are not directly comparable offers.
Are construction loan rates fixed or variable?
It depends on the lender and loan structure. A variable construction-phase rate changes with a benchmark such as prime or SOFR; some lenders offer fixed-rate or locked options. Confirm the benchmark, margin, reset timing, caps, and any floor in writing.
Can I lock my rate on a construction-to-permanent loan?
Some one-time-close lenders offer a lock for the permanent mortgage before the build is complete. Availability, lock length, extension fees, and float-down options vary. With a two-time close, permanent financing is arranged separately, so confirm when that mortgage can be locked and what happens if completion is delayed.
How do I estimate my payment at a given rate?
Enter your project cost, down payment or land equity, construction rate, build length, permanent rate, and term in our construction loan calculator. It builds a month-by-month draw schedule, charges interest-only on the balance drawn so far, and estimates the permanent payment on the loan amount at the separate permanent rate you enter. Construction interest is treated as paid during the build, not added to the permanent balance. Actual draw timing, fees and your conversion terms can change the result.
Sources
- FRED DPRIME — October 27, 2026 (unchanged since September 17).
- FRED DFEDTARU — September 17, 2026 (effective since).
- FRED SOFR — November 6, 2026.
- FRED DGS10 — November 5, 2026.
- Freddie Mac PMMS — Week of November 5, 2026; 30-year and 15-year fixed averages.
- NAHB Eye on Housing: Cost of Credit for Builders Up Since the End of 2025 — Paul Emrath, August 13, 2026; Q2 2026 AD&C Financing Survey.