Front Range New Construction: Builder Rate Buydowns, Unfinished Basements and Tax Lags
Updated October 2026
A builder's advertised payment on a new home in Windsor or Castle Rock may combine a temporary rate buydown, a land-only tax estimate and an unfinished basement. Separate those assumptions before comparing the offer with an existing home or another builder's inventory.
Price the incentive beyond year one
A temporary 2-1 buydown typically reduces the borrower's payment burden for two years through a funded subsidy; it does not change the note rate. Qualification generally uses the full note-rate payment. A permanent discount-point buydown changes the contractual rate instead.
Request side-by-side Loan Estimates showing the same purchase price, down payment, lock period and closing date. Identify which incentives require the builder's preferred lender and whether accepting them replaces a price reduction.
- Compare the full payment after temporary assistance expires.
- Separate lender fees, discount points and builder-paid closing costs.
- Check loan-program limits on seller contributions.
- Calculate how long permanent rate savings take to recover additional costs.
Use today's rates as a comparison starting point, then review actual costs with the closing cost estimator. The Consumer Financial Protection Bureau explains the Loan Estimate categories that make competing offers easier to compare.
Treat basement potential as potential
An unfinished basement is not finished living area. Even a finished basement is generally reported separately from above-grade area in conventional appraisal reporting. Its value depends on comparable sales, finish quality, access and market acceptance—not a promise that every construction dollar becomes appraised value.
Obtain written specifications for included finishes, permits and completion timing. If finishing occurs after closing, budget separately for construction rather than assuming the initial mortgage covers future work. A walkout entrance alone does not establish a legal rental unit.
The 2026 baseline conforming limit is $832,750 in Larimer, Weld and El Paso counties. Higher ceilings apply in several Denver-area counties; verify the property's county through FHFA Loan Limits before choosing the financing structure.
Replace tax placeholders with completed-home estimates
A prior bill may reflect vacant land or partially completed construction. Ask for a completed-home estimate that includes all district levies, then read the Metro District checklist.
Also obtain insurance pricing for the actual address, including wind and hail deductibles. An escrow review can increase the payment to cover both a higher ongoing bill and an accumulated shortage. Keep that possibility separate from the predictable expiration of the builder's temporary buydown.
Compare Current Mortgage Rates
Compare current APRs, points, fees, and estimated monthly payments from participating lenders below.
Loan Program Comparison: 2026 Benchmarks
Front Range New Construction: Builder Rate Buydowns, Unfinished Basements and Tax Lags — Choose a mortgage by comparing eligibility, upfront cash and total monthly costs, not the advertised rate alone. Conventional, FHA, VA and USDA serve different borrowers. Confirm county limits, taxes, insurance and lender requirements before comparing personalized Loan Estimates for your household.
Historical 2025 one-unit comparison: conforming $806,500; FHA floor $524,225. County and unit-count limits can differ.
| Loan program | Down payment / equity | 2026 one-unit baseline | Costs and page-specific comparison |
|---|---|---|---|
| Conventional | 3%–5% subject to eligibility | $832,750 | PMI generally below 20% down |
| FHA | 3.5% at 580+; 10% at 500–579 | $541,287 floor | 1.75% upfront MIP; 0.55% annual for >95% LTV, base loan ≤$726,200, term >15 years |
| VA | 0% for eligible borrowers | No VA limit with full entitlement | No monthly PMI; funding fee unless exempt |
| USDA | 0% for eligible borrowers | Income, address and repayment eligibility | Guarantee and annual fees; confirm current schedule |
| Jumbo | Lender-specific cash and reserves | Above applicable conforming limit | Lender-specific pricing and insurance |
| Home Equity / Refinance | Equity and underwriting dependent | Property and lender dependent | Compare closing costs, term and break-even |
Sources: FHFA limits; HUD FHA limits.
Editorial Methodology & Primary Sources
Verification date: Not recorded; check the primary source and lender timestamp before relying on an estimate.
Rate comparisons use participating lender feeds, not a whole-market survey or guaranteed offers. Freddie Mac PMMS is a market benchmark, not a personalized quote. Calculator models rely on published regulatory formulas and disclosed assumptions rather than fabricated first-person loan testing.
Monthly principal and interest use the amortization formula P × r / (1 − (1 + r)−n), where r is the monthly note rate and n is the number of payments; at zero interest use P / n. PITI adds monthly property taxes and homeowners insurance; PMI is separate. APR includes applicable finance charges under Regulation Z and is not the note rate used for payments. Compare lender Loan Estimates for actual APR and fees.
- Consumer Financial Protection Bureau (CFPB) — Loan Estimates, APR and borrower disclosures; Regulation Z.
- U.S. Department of Housing and Urban Development (HUD / FHA) — FHA program guidance.
- U.S. Department of Veterans Affairs (VA) — VA loan eligibility and benefits.
- Freddie Mac Primary Mortgage Market Survey (PMMS) — published rate benchmarks.
- U.S. Census state tax collections — state property tax benchmarks; confirm parcel-specific assessments and exemptions with the state revenue department and local assessor.
The payment snapshot uses illustrative annual taxes of 1% of home price, $1,200 insurance and 0.5% PMI below 20% down, not verified local quotes. Other calculators disclose their inputs and assumptions. Published guidance and lender feeds may change independently; confirm current program rules, taxes and offers before a decision.