Luke Drake — Authorised Credit Representative (CRN 565112) | FBAA Member | Frontier Finance Co

Construction Loans Guide

Master construction financing with stage payments and builder protection strategies

A construction loan releases funds in stages as your project progresses. Instead of receiving the full amount upfront, you get payments at key milestones (foundation, frame, lock-up, fit-out, completion). Interest is calculated only on drawn funds, reducing overall interest costs. Most construction loans require 20-30% deposit and have interest rates 1-2% higher than standard mortgages.

Construction loans are ideal for new builds, renovations, and development projects where you need flexibility and builder protection through staged payments.

Understanding Construction Loans

How Construction Loans Work

Construction loans release funds in stages as construction progresses. Each stage requires builder certification and council inspection before payment is released. Interest is calculated only on the amount drawn, not the full loan amount.

Upon project completion, you refinance to a standard mortgage. This process is called "conversion" or "take-out." Construction-to-permanent loans combine both stages into one product, simplifying the process.

Typical Construction Loan Stages

1

Foundation & Excavation (10-15%)

Site preparation, excavation, foundation pour. First major milestone requiring council inspection.

2

Frame & Structure (20-25%)

Timber/steel frame, roof installation, external walls. Largest payment stage, typically 20-25% of total.

3

Lock-Up (30-35%)

Windows, doors, internal walls, electrical/plumbing rough-in. Building is now weather-tight and secure.

4

Fit-Out & Finishing (20-25%)

Internal finishes, kitchen/bathroom installation, painting, flooring. Building nears completion.

5

Completion & Handover (10-15%)

Final inspections, council approval, occupancy certificate issued. Final payment released upon completion.

Construction Loans: Pros & Cons

✓ Advantages

  • Interest only on drawn funds (lower interest cost)
  • Flexibility (funds released as needed)
  • Builder protection (staged payments ensure quality)
  • Lower overall cost vs upfront borrowing
  • Inspection protection (council approval at each stage)
  • Ideal for new builds and renovations

✗ Disadvantages

  • Higher interest rates (1-2% above standard mortgages)
  • Complex documentation and approvals
  • Builder risk (delays, cost overruns, quality issues)
  • Refinancing risk (rates may increase at completion)
  • Longer approval process (4-8 weeks)
  • Requires detailed plans and builder quotes

Construction Loan Example

Real Scenario: New House Build

Project: Build new house on land in Sydney suburbs

Land value:$400,000
Build cost:$500,000
Total project cost:$900,000

Financing Structure

Deposit (20%):$180,000
Construction loan (80%):$720,000
Interest rate (construction):7.5% p.a.

Stage Payments (12-month build)

Stage 1 (Foundation): 15% × $720k$108,000
Stage 2 (Frame): 25% × $720k$180,000
Stage 3 (Lock-up): 30% × $720k$216,000
Stage 4 (Fit-out): 20% × $720k$144,000
Stage 5 (Completion): 10% × $720k$72,000

Interest Cost (Construction Phase)

Average drawn amount (50% over 12 months):$360,000
Interest cost (7.5% × $360k × 1 year):$27,000
Total project cost (including interest):$927,000

Upon completion, refinance to standard mortgage at 6.5% p.a. Interest savings vs upfront borrowing: ~$7,200 annually (7.5% - 6.5% on $720k).

Frequently Asked Questions

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What Our Clients Say

Real testimonials from satisfied customers

"Luke helped me get my first home loan. He was extremely helpful throughout the entire process and was on top of everything. Especially as being a first home buyer this was a confusing process but Luke was always available to answer questions I had and was very open and quick to note any changes to my approval process. Thanks heaps Luke. Will definitely use your services again!"

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Frontier Finance Co

Helping Australians find the right home loan — first home buyers, investors, and refinancers.

Frontier Finance Co. (ABN: 12 682 211 374) is an Authorised Credit Representative (CRN: 565112) of Loans Only Pty. Ltd. (Australian Credit License 561324).

Disclaimer: The information provided on this website is general in nature only and does not constitute personal financial advice. The information has been prepared without taking into account your personal objectives, financial situation or needs. Before acting on any information on this website you should consider the appropriateness of the information having regard to your objectives, financial situation and needs.

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