Construction Loans and Interim Financing: The Funding Structure That Bridges Design Through Stabilized Operations
Construction loans are distinct financial instruments. Where permanent mortgages fund stabilized real estate with predictable cash flow, construction loans fund projects under development with specific disbursement mechanics, inspections, and shorter terms. Construction loans are interim financing — converted to or replaced by permanent financing when construction completes and project stabilizes.
For contractors and developers, understanding construction loan mechanics helps navigate financing, coordinate with lenders, and align construction execution with loan requirements. This post covers construction loan fundamentals.
Key differences between construction and permanent:
Construction vs permanent loans
- Construction is short-term (12-36 months typical)
- Permanent long-term (20-30 years)
- Construction disburses in draws
- Permanent is single disbursement
- Construction has higher rate
- Construction typically interest-only during construction
- Different underwriting
- Different security (completion vs stabilized property)
Different financial instruments for different phases. Construction lender takes construction risk (completion risk, cost risk, schedule risk). Permanent lender takes stabilized operation risk. Different risk profiles produce different underwriting and terms.
Common construction loan structures:
Construction loan structures
- Pure construction (12-24 months, requires takeout)
- Construction-to-permanent (converts at completion)
- Mini-perm (construction plus 3-5 years permanent)
- Bridge financing (short-term post-construction)
- Mezzanine financing (subordinate debt)
- Construction combined with equity
Structure depends on project type and strategy. Pure construction requires separate takeout (permanent). Construction-to-perm avoids second closing. Mini-perm provides operating period before full permanent. Selection balances rate, flexibility, and closing costs.
Draws fund construction incrementally:
Draw schedule elements
- Monthly draws typically
- Draw requests with documentation
- Inspector verification of progress
- Lender approval
- Wire transfer to contractor
- Draw amounts based on completion
- Retainage held
Draws align with project progress. Contractor bills for completed work. Lender inspects and approves. Draws fund progress billings. Timing of draws affects contractor cash flow — delays in draws produce cash flow issues.
Lender inspections verify progress:
Lender inspections
- Third-party inspector typically
- Monthly visits coordinated with draws
- Progress verification
- Conformance with plans and specs
- Budget tracking
- Issue identification
- Report to lender
Lender inspectors verify that draw requests reflect actual progress. Prevents overfunding. Identifies issues for lender attention. Inspections timed with monthly draws. Professional inspectors with construction background.
Interest reserves fund carrying costs:
Interest reserves
- Interest during construction is cost
- Construction produces no revenue
- Interest reserve funded from loan
- Monthly interest drawn against reserve
- Sized based on projected construction interest
- Capitalized into loan amount
Project has no revenue during construction. Interest accrues on outstanding balance. Interest reserve pre-funded into loan. Each month's interest drawn against reserve. Reserve sized to cover full construction period.
Equity required alongside debt:
Equity requirements
- Loan-to-cost (LTC) typically 65-80%
- Equity covers remaining 20-35%
- Cash equity upfront
- Can include land value
- Developer fees sometimes as equity
- Equity often drawn first
Construction loans rarely 100% financed. Equity requirement 20-35% common. Borrower commits equity before loan funds. Equity investment often drawn first, then loan. Reduces lender risk exposure.
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Two ratios govern loan size:
LTV and LTC
- LTV — loan-to-value (versus stabilized value)
- LTC — loan-to-cost (versus construction cost)
- Typically LTV 60-75% of completed value
- LTC 65-80% of costs
- More conservative of two often applies
- Market conditions affect ratios
LTV and LTC both evaluated. Lender loans minimum of both calculations. LTV looks at completed project value; LTC looks at construction cost. Different projects may have different binding constraint. Market cycle affects which lenders emphasize.
Construction loan draws fund completed work, not work to be completed. Contractors need to fund upcoming work from operating capital, retainage, or other sources before draws arrive. The gap between paying subs and suppliers and receiving draws is working capital requirement that contractors must plan. Expecting draws to fund current work creates cash problems.
Takeout concludes construction phase:
Takeout financing
- Permanent financing after construction
- Pays off construction loan
- Takeout commitment may be obtained upfront
- Conventional, CMBS, HUD, other sources
- Stabilization requirements before takeout
- Different underwriting
Takeout financing pays off construction loan. May be pre-arranged with commitment letter, or secured at completion. Stabilization (occupancy levels, rent levels) may be required before permanent lender funds. Gap between construction completion and stabilized operations may require bridge.
Loan covenants during construction:
Construction loan covenants
- Construction completion date
- Budget variance limits
- Preconstruction items (permits, insurance, etc.)
- Ongoing reporting
- No material changes without approval
- Subcontractor approvals sometimes
- Insurance requirements
Covenants control borrower actions. Major changes require lender approval. Regular reporting to lender. Failure to meet covenants can trigger default. Coordinating with lender on significant project changes protects loan.
Title insurance protects lender:
Construction title insurance
- ALTA policies for construction
- Date-down endorsements with each draw
- Protects against liens since last date-down
- Contractor lien waivers required
- Title company verification
- Coverage through construction
Title insurance addresses mechanic liens filed between draws. Date-down endorsement at each draw extends coverage. Lien waivers from all tiers required. Title company plays active role in construction draws.
Construction loans fund project construction through draw schedule aligned with progress. Short-term (12-36 months typical) with takeout to permanent financing. Various structures (pure construction, construction-to-perm, mini-perm). Monthly draws with lender inspections verify progress. Interest reserves fund carrying costs. Equity required 20-35% typically. LTV and LTC both evaluated. Covenants control borrower actions. Title insurance addresses mechanic lien risk. For contractors working on financed projects, understanding lender requirements and draw process supports smooth execution. Contractors helping clients navigate construction financing (or financing their own projects) benefit from knowing construction loan mechanics. Construction financing is specialized area with specific practices that shape project execution economics.
Written by
Jordan Patel
Compliance & Legal
Former corporate counsel specializing in construction contracts and tax compliance. Writes about the documentation layer — COIs, W-8/W-9, certified payroll, notice-to-owner deadlines — and the legal backbone behind audit-ready AP.
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