Construction Loan to Permanent Mortgage: 2027 Guide

A construction-to-permanent (C2P) loan, also called a one-time-close or single-close construction loan, funds the building phase and then automatically converts into a traditional mortgage when construction is complete — without requiring a second closing. During construction (typically 6–18 months), the borrower pays interest only on funds drawn. At conversion, the loan rolls into a standard amortizing mortgage (fixed or ARM). Benefits: one set of closing costs, one appraisal, and a rate lock (on single-close products). Alternative: two-close construction loans — a separate construction loan that is paid off with proceeds from a new permanent mortgage. Two-close products offer more flexibility but require two full closings and two sets of costs. See the mortgage rate lock glossary for how locking works during construction. The CFPB loan options guide explains mortgage types broadly.

Construction loans disburse funds in stages called draws — typically 4–6 draws tied to completion milestones: (1) Foundation complete: First draw, usually 10–15% of loan; (2) Framing complete: 20–25%; (3) Mechanical rough-in (HVAC, plumbing, electrical): 20–25%; (4) Drywall / interior: 15–20%; (5) Completion / certificate of occupancy: Final draw, 10–15%. Each draw triggers an inspection by the lender or a third-party inspector. Interest accrues only on amounts drawn — not the full loan amount — so early phases have lower carrying costs. Budget 10–15% contingency above the construction contract amount for change orders and overruns. See LTV ratio — construction lenders typically allow up to 80–90% of the finished appraised value (the "as-completed" value). The HUD Title II program covers FHA construction loan programs.

Yes — both FHA and VA offer construction-to-permanent products: FHA One-Time Close (OTC): Available under FHA 203(b) — minimum 3.5% down, standard FHA credit and income requirements. The MIP (mortgage insurance premium) applies at conversion. Useful for lower-credit borrowers and first-time buyers building entry-level homes. VA One-Time Close: Available to eligible veterans and active-duty service members. 0% down payment, no PMI. The VA requires the borrower to intend to occupy the home. Builder must be VA-approved. USDA Construction-to-Perm: Available in rural areas — 0% down, income limits apply. Combined construction and permanent loan. Conventional (Fannie/Freddie) also offer one-time close products through approved lenders with as little as 5% down. See FHA loan, VA loan, and the HUD FHA construction loan page.

Rate locking on construction loans is more complex than standard purchase mortgages: Standard rate lock: Locks the permanent rate at closing for 30–90 days — fine for quick builds but most construction takes longer. Extended rate lock: Locks for 6–24 months at an added cost (typically 0.5–1.5% of the loan amount as a fee). If rates fall, some programs offer float-down provisions at additional cost. Two-close option: The permanent mortgage is a separate transaction — you lock at the time of the second closing (after construction is complete), which means full market exposure during construction but potentially benefiting from rate drops. In the elevated rate environment of 2027, many builders and lenders offer extended rate lock products as a selling point. Read more about rate strategy in the mortgage rate lock guide and the CFPB rate lock explainer.

Key risks for borrowers: (1) Construction delays: If the project runs past the loan term, you may need an extension (additional cost) or face conversion before the home is finished; (2) Cost overruns: Changes orders and material price increases can exceed the loan amount — lenders will not advance beyond the approved amount without a formal modification; (3) Builder default: If the builder fails mid-project, you may need to hire a replacement contractor; some lenders require performance bonds; (4) Appraisal shortfall: The as-completed appraisal drives the loan amount — if the market value at completion is lower than expected, you may need to bring additional cash; (5) Rate risk (two-close): Rates may rise between construction start and permanent mortgage closing; (6) Carry costs: Interest-only payments during construction are on top of any rent you are paying while the home is being built. Mitigate with a qualified builder, detailed contract, and a 10–15% contingency fund. See mortgage contingency and CFPB home buying preparation guide.

Construction loans require the standard mortgage documentation plus construction-specific items: Standard docs: Pay stubs (2 months), W-2s / tax returns (2 years), bank statements (2–3 months), credit authorization, ID. Construction-specific docs: (1) Signed construction contract with a licensed builder including detailed scope of work; (2) Construction timeline and draw schedule; (3) Plans and specifications / blueprints; (4) Builder license and insurance certificates; (5) Permits obtained or evidence of permit application; (6) Land purchase contract (if not yet owned) or title to land; (7) As-completed appraisal ordered by the lender. If self-employed or a contractor-owner builder: additional business returns and documentation. Owner-builder programs (where the borrower is also the general contractor) exist but are limited — most lenders require a licensed GC. See mortgage application document checklist and the CFPB Loan Estimate guide.