How do construction loans work? A guide for Australian home builders and investors

Thinking of building your own home or investment property? Discover how construction loans work and how DPN can help you finance your build with confidence.

If you're planning to build a home—whether it's your forever residence or an investment property—understanding how construction loans work is essential. Unlike a traditional home loan used to buy an existing property, a construction loan is purpose-built to support the unique financial needs of a build, releasing funds in stages as construction progresses.

At DPN, we oversee the construction of over 170 investment dwellings every year across Australia, including duplexes and dual income properties. Backed by a team of experienced mortgage brokers who specialise in construction loans, we’re here to guide you through the process from the ground up.

What makes a construction loan different?

Construction loans differ from standard home loans in how and when funds are released. Rather than receiving the full loan upfront, your lender will provide funds progressively throughout the build in what’s known as progress payments. These payments correspond to specific stages of the construction process.

The 5 stages

1. Deposit, 5% of contract price

Paid when signing the contract.

2. Slab stage, 15%

This covers site preparation, excavation, plumbing, and laying the concrete slab.

3. Frame stage, 20%

Structural beams, roof trusses, and external/internal walls are installed to outline the floorplan.

4. Lock-up, 20%

The home becomes secure and weatherproof. External walls, doors, windows, and roofing are added, allowing the property to be “locked up.”

4. Fix-out stage, 30%

The interior starts to take form with plastering, cabinetry, tiling, kitchen and bathroom fittings, and electrical and plumbing.

5. Completion, 10%

Final touches like painting, flooring, external works (driveways, landscaping), and appliances are completed. A final inspection prepares the home for handover.

Note: These stages can vary slightly depending on your builder and contract terms. Always refer to your individual building contract.

How the loan works

At each stage, your lender will inspect the completed work before releasing the corresponding progress payment. This helps ensure the build stays on schedule and within budget.

During the construction phase, the loan typically functions as interest-only, which means you’ll only pay interest on the funds disbursed to date. Once the home is complete, it generally reverts to a principal and interest repayment structure.

What you’ll need to apply

Applying for a construction loan is similar to applying for a standard mortgage, but with a few additional documents related to your build. Here’s what lenders generally require:

Standard documentation

  • Proof of identity
  • Income evidence, e.g. payslips, tax returns
  • Assets and liabilities statement

Build-specific documentation

  • Signed, fixed-price building contract with a licensed builder
  • Land purchase contract if applicable
  • Council approved building plans
  • Builder’s insurance and permits
  • Quantity surveyor report if required

During construction

  • Signed invoices from your builder
  • Receipts for any variations or out-of-contract expenses

Each lender has slightly different requirements. That’s where DPN’s mortgage brokers come in—offering expert guidance tailored to your personal and financial circumstances.

To ensure the build stays on schedule and within budget, your lender will inspect the completed work before releasing each progress payment.

1
2
3
4
5

Planning ahead

It’s important to budget for items that may not be covered under your construction contract, such as landscaping, fencing, or appliance upgrades. Having a contingency fund is also wise, as delays from weather, materials, or labour can affect your build timeline and costs.

If you're building in a new development or estate, remember that local amenities like schools or shops might still be under construction when you move in.

Take the next step with DPN

Whether you’re an investor building a dual income property or a homeowner creating your dream residence, a construction loan can make it all possible—with the right support.

At DPN, our experienced mortgage brokers are construction finance specialists. We’ll help you navigate the documentation, deal with lenders, and manage progress payments—ensuring your building journey is as smooth as possible.

Get in touch with DPN’s Mortgage Brokers today to explore your construction loan options and start building with confidence.

Important Notes:
Variations: Some builders might adjust these slightly, particularly the fixing stage percentage.
Loan requirements: If the build is funded by a lender (bank), the builder’s claims usually must match the bank’s approved stages and percentages. Some lenders insist on seeing evidence of completion (inspections, photos, or certificates).
Deposit caps: Consumer law in many Australian states caps the maximum allowable deposit (e.g., no more than 5% unless special circumstances).

Related Articles

VIEW ALL ARTICLES

Subscribe to Parler

Educational articles on maximising returns
Detailed research pieces on high-growth regions
News on finance, lending and tax in Australia
Early access to webinars and exclusive events

Join our community

Each month you'll receive our newsletter with exclusive property research, investing tips & market alerts.

Submit

Thank you

You have now been successfully subscribed. We hope you enjoy all tips and resources from Parler.
Oops! Something went wrong while submitting the form.

Are you ready to live the life you want?