Financing a commercial construction project requires planning beyond just the building itself—you need capital structured to match your project timeline and cash flow demands. Most lenders differentiate between acquisition loans, construction loans, and permanent financing, each with distinct rates, terms, and disbursement schedules. Understanding which option fits your project scope can save you tens of thousands in interest and keep your build on track.
Construction Loans vs. Traditional Mortgages
Construction loans and permanent mortgages serve different purposes. A construction loan is short-term financing (typically 12–36 months) that covers the building phase, with interest-only payments during construction. Once the project is complete, you refinance into a permanent loan or mortgage, which offers lower rates and longer amortization periods (15–30 years).
The key difference: construction loans disburse funds in stages (called "draws"), not as a lump sum. Your lender will request inspections at key milestones—foundation complete, framing done, electrical rough-in finished, etc.—before releasing the next tranche of funds. This protects the lender and ensures money flows directly to contractors and suppliers.
Interest Rates and Terms to Expect
Construction loan rates typically run 1–3% higher than permanent mortgage rates. Current market conditions place construction rates in the 7–9% range, though this fluctuates. You'll usually pay interest only during construction, so if your loan is $2 million at 8.5% for 18 months, your monthly cost is roughly $14,167 while building.
Loan-to-value (LTV) ratios matter significantly:
- Lenders typically finance 70–80% of the project's total cost
- You'll need to cover 20–30% as equity or down payment
- More stable, established developers may access 85% LTV with stronger terms
Bridge loans are sometimes used to cover the down payment, adding another layer of cost. Factor these expenses into your total project budget.
Types of Commercial Construction Financing
Traditional Bank Construction Loans Banks offer competitive rates if you have strong credit, established business history, and detailed construction plans. The approval process takes 4–8 weeks, and you'll need extensive documentation: architect drawings, contractor bids, detailed budgets, and a feasibility study. Banks rarely move quickly, but their rates reward patient, organized borrowers.
Portfolio Lenders and Private Banks Smaller lenders who keep loans in-house (instead of selling them) often have more flexibility on timeline, developer experience, and property type. They may approve unconventional projects (adaptive reuse, specialized industrial builds) where national banks would decline. Rates are typically 1–2% higher, but approval comes faster.
SBA and Government-Backed Programs The Small Business Administration offers construction financing through registered lenders, capping rates and extending terms. SBA loans require detailed business plans and personal guarantees but often allow smaller down payments (10–20%) and longer repayment periods. Process timeline: 2–3 months.
Mezz Financing and Joint Ventures For larger projects, mezzanine financing bridges the gap between senior debt (the bank loan) and your equity. A mezz lender provides subordinate financing, typically at 12–15% interest, in exchange for equity or a higher return. This is expensive but useful when you need more capital and can't access traditional leverage.
Key Documentation Lenders Will Request
Before approaching any lender, assemble:
- Detailed construction budget broken into line items
- Complete architectural and engineering plans
- Contractor's written bid and scope of work
- Timeline showing projected completion and occupancy
- Pro forma financials (for income-producing properties)
- Personal financial statements and tax returns (typically 2 years)
- Proof of land acquisition or option agreement
- Evidence of permits or pre-approval from local authorities
Missing any of these delays approval by weeks. Organized borrowers close faster and often negotiate better terms.
Comparing Lenders Effectively
Get quotes from at least three lenders. Compare not just rate, but:
- Origination fees (typically 0.5–2% of loan amount)
- Appraisal and inspection costs
- Draw timeline and inspection frequency
- Whether interest accrues on undisbursed funds
- Prepayment penalties
- Contingency reserve requirements (some lenders hold back 5–10% until final completion)
Using a platform like Mercoly lets you compare trusted construction lenders and general contractors in one place, streamlining the vetting process.
Frequently Asked Questions
Q: Can I lock in a rate on a construction loan before starting my project? Most lenders will lock your rate for 30–60 days while you finalize plans and permits, but longer locks incur a fee (0.25–0.5% of the loan). Rate certainty is worth the cost if you're several months from breaking ground.
Q: What happens if construction runs over budget or timeline? Cost overruns require a loan amendment and often new appraisals; timeline delays may trigger penalty interest or force you to refinance. Build a 10–15% contingency into your budget and timeline from the start.
Q: Do lenders require a general contractor to be in place before funding? Nearly all construction lenders require a licensed, bonded general contractor with relevant experience and insurance before they'll approve or fund the loan. They want proof the project will be built correctly and on schedule.
Compare construction financing options today to secure the best terms for your project.