Construction loans
explained.

How Construction Loans Work

A construction loan provides funds to pay contractors and suppliers as work is completed — disbursed through a draw schedule rather than as a lump sum at closing. During construction, borrowers typically make interest-only payments on the drawn amount. Once construction is complete, the loan either converts to a permanent mortgage or is paid off through a new loan.

• Disbursed through draws as construction progresses
• Interest-only during construction phase
• Converts or refinances to permanent mortgage at completion
• Term typically 12-18 months for construction phase

Types of Construction Loans

Common construction loan structures include construction-to-permanent (one closing, converts to mortgage at completion), stand-alone construction (two closings — construction loan then separate mortgage), and renovation/rehab loans for existing properties.

• Construction-to-permanent: one closing
• Stand-alone construction: two closings
• Renovation/rehab: for existing property improvements
• Owner-builder: for borrowers acting as their own contractor

Qualification

Construction loan qualification evaluates the borrower's financial profile alongside the project feasibility — plans, budget, contractor credentials, and timeline. Requirements vary by lender and program type. Speak with a licensed MLO to review your specific scenario.

• Borrower financial profile reviewed
• Project plans, budget, and contractor credentials
• Requirements vary by lender and program
• Speak with a licensed MLO for your scenario

The construction loan family tree

"Construction loan" is an umbrella over several distinct products, and choosing among them is the first real decision of any build. The construction-to-permanent (CP) loan — one closing that funds the build and automatically converts to a normal mortgage at completion — is the modern default for owner-occupants. The standalone (two-close) construction loan funds only the build, requiring a separate permanent mortgage afterward; it trades a second closing for flexibility to re-shop the permanent loan. Renovation construction loans fund major remodels on existing homes. And builder/commercial construction lines serve professionals building for sale or income. Each product carries its own qualifying, draw, and rate mechanics — covered across the guides linked below.

The mechanics every version shares

• Budget-based lending: the loan is sized against a detailed construction budget plus land, with the lender advancing a percentage of total cost (loan-to-cost) or completed value.
• Draws, not a lump sum: funds release in stages as work completes — foundation, framing, dry-in, finishes — each verified by inspection.
• Interest on drawn funds only: during construction you pay interest solely on what has been advanced, so payments start small and grow with the build.
• Builder underwriting: the lender vets your contractor — license, insurance, references, financials — as carefully as it vets you.
• Contingency reserves: expect 5–10% padding in the approved budget for overruns; builds that lack it stall when surprises arrive.

These mechanics protect both parties: money meets the project only as the project earns it.

The full menu of construction financing structures

"Construction financing" is broader than the construction loan itself — it is the question of how a build gets funded end to end, and the market offers more structures than most borrowers know exist:

• Construction-to-permanent (one-time-close): one loan, one closing, automatic conversion to a mortgage at completion — the owner-occupant default.
• Standalone construction + separate takeout: two closings, full freedom to shop the permanent loan at completion.
• Renovation financing: purchase-plus-rehab or refinance-plus-rehab structures funding major remodels through draws.
• Land-plus-construction packages: lot acquisition and build funded together (see our land-construction guide).
• HELOC- or asset-funded builds: equity from an existing home or portfolio funding construction directly — no draw administration, full interest from day one.
• Spec/builder lines: revolving construction credit for professionals building for sale.
• Commercial construction: income-property development sized by loan-to-cost and debt-service coverage.

Choosing the structure is the real decision; the rate conversation only makes sense after it.

How to choose among them

Four questions sort nearly every borrower. Who will own the completed property, and how will it be used? (Owner-occupied, second home, rental, and for-sale product each have distinct natural structures.) How much equity — cash, land, or existing-home equity — funds the project? (Equity position determines which structures are open.) How much rate certainty do you want across the build? (One-time-close locks it; two-close shops it.) How complex is the project? (Simple builds fit standardized programs; unusual ones need portfolio flexibility.) Answer those and the menu above collapses to one or two sensible candidates.

The numbers for owner-occupied builds

• Down payment/equity: commonly 10–20% of total project cost — the most favorable leverage in construction lending; owned land counts at appraised value.
• Credit: 680+ typical, 700+ for the best structures.
• Qualification: against the eventual full payment (P&I, taxes, insurance on the completed home) — plus your current housing cost if you will carry both during the build.
• Interest during construction: billed only on drawn funds, and frequently financed inside the loan via an interest reserve so the build pays its own carry.
• Timeline: 9–14 months is the common single-family window; your loan's construction period should exceed the builder's estimate with room to spare.

The double-payment question — carrying rent or a current mortgage alongside the build — is solved for most families by the interest reserve; confirm yours includes one.

Your mortgage knowledge, translated

If you understand mortgages and are now planning a build, the adjustment is straightforward — a construction loan is a home loan with a time dimension added:

• Pre-approval: Sizes your total project budget rather than a purchase price.
• Down payment: Measured against total project cost (land + build), with owned land counting as equity.
• Rate lock: Available up front on one-time-close structures, protecting your permanent rate through the entire build.
• Monthly payment: Interest-only on drawn funds during construction (often financed inside the loan via an interest reserve), then normal P&I after conversion.
• Closing costs: Paid once on a one-time-close; twice on two-close structures.
• Shopping lenders: Construction programs differ structurally between lenders, not just on rate.

Building while you already own a home: the carry-both math

Current homeowners bring existing equity to construction financing. Structuring that equity is key:

• Qualification: Lenders count your current full housing payment plus the new eventual payment (plus any HELOC payment used for down payment) in debt-to-income unless the existing home is under contract or leased.
• Departing-residence rules: Once the new home completes, a signed lease on the old home or listing plus reserves can satisfy lender requirements to offset payments.
• Interest reserve: Keeps the build from adding a third monthly outlay during construction.
• Bridge structures: Available for strong-equity owners who do not qualify on income alone — equity carries the project until the existing home sells.

Buying a home a builder is constructing (Production & Spec Homes)

Financing a home an established builder or developer is constructing involves specific purchase mortgage considerations:

• The rate-lock gap: Builds often run 6–12 months from contract. Extended rate locks with float-down options protect your financing across the delay.
• Builder incentives & RESPA: Federal law (RESPA) prohibits builders from requiring you to use their in-house lender. Always obtain an outside quote to verify whether builder credits genuinely beat market rates.
• Deposit protection: Builder earnest money deposits (typically 5–10%+) remain committed through the build — ensure your contract clearly specifies financing contingency and refund terms.
• Appraisal timing: The appraisal occurs near completion when final finishes are installed; comps in new subdivisions should support the purchase contract.

The three ways to finance new construction

New construction financing spans three main paths:

• Path one — Builder purchase: A production or spec home from a builder who carries the construction financing. You obtain a purchase mortgage with an extended rate lock.
• Path two — Custom build: Your lot, your architectural plans, your chosen builder. You use a construction-to-permanent loan with draws and inspections.
• Path three — Semi-custom in a builder program: Builder-owned lot with your finish and floorplan selections. Usually financed as a builder purchase with design deposit additions.

The new construction loan, start to finish: 4 phases

A new construction loan follows a predictable lifecycle from application to permanent mortgage:

• Phase one — Approval (Weeks 1–6): Borrower financials, architectural plans, detailed line-item budget, and builder credentials are underwritten simultaneously.
• Phase two — Closing: Land funds (or credits as equity), the construction draw schedule locks, and on one-time-close loans the permanent interest rate can be locked up front.
• Phase three — The build (Months 1–14): Typically 5 to 7 draws release funds after physical inspections verify stage completion; interest accrues monthly only on drawn amounts.
• Phase four — Conversion: Issuance of the Certificate of Occupancy (CO) triggers modification into your permanent amortizing mortgage without re-qualifying.

Contract types & warranties: Fixed-Price vs. Cost-Plus

The builder contract structure directly determines lender financing approval:

• Fixed-price contracts: Transfer material cost fluctuations and supply delays to the builder. This is the preferred fundable standard for most lenders.
• Cost-plus contracts: Leave material escalation risks with the borrower; lenders require larger cash contingency reserves (often 15–20%) before approving these structures.
• Warranties: Production/tract homes come with standardized builder warranty programs, whereas custom builds depend strictly on the warranty clauses negotiated in the prime contractor agreement.

Starting a construction loan: your first five moves

For borrowers building from scratch, sequencing decisions correctly prevents costly revisions:

• 1. Pre-qualify for the end loan: Your income and assets dictate the total project budget ceiling — establish this number before hiring an architect.
• 2. Control the land: Secure the parcel via purchase contract or use equity from an already-owned lot toward your down payment requirement.
• 3. Screen builders for lender approval: Interview general contractors regarding their lender references, active insurance, and familiarity with bank draw schedules.
• 4. Choose your loan structure: Decide between a one-time close (locking your permanent mortgage up front) and a two-close construction loan.
• 5. Assemble and submit a complete file: Submit personal financials, final blueprints, line-item budgets, and builder documentation together for faster underwriting.

Matching the loan to the building type: 5 underwriting channels

Every building project fits into a distinct financing channel:

• 1. Custom primary home: Residential construction-to-permanent lending, converting into a permanent mortgage upon occupancy.
• 2. Rental & investment build: Investor construction loans, frequently paired with permanent DSCR mortgages based on prospective lease income.
• 3. Business-occupied facility: Owner-occupied commercial construction, frequently eligible for SBA 504 financing with long-term fixed rates.
• 4. Income property for lease (multifamily/retail): Commercial construction evaluated by loan-to-cost (LTC) and stabilized debt-service coverage.
• 5. Spec homes for sale: Builder revolving lines of credit underwriting contractor absorption history and local sales velocity.

Where to start

Start with the exit, not the entrance: decide what permanent financing should look like at completion — loan size, jumbo or conforming, fixed or ARM — and work backward to the construction structure that delivers it. Then assemble the three pillars lenders fund against: a buildable lot (owned or under contract), a licensed builder with a fixed-cost contract, and complete plans with a line-item budget. Files arriving with all three move quickly; files missing one wait on it. Our construction guides linked throughout this section cover each product in depth, and as a licensed broker (NMLS# 1967971) we place construction files — residential through jumbo scale — with lenders who genuinely want them.