Construction Loans Australia

A construction loan is a type of home loan designed to fund the building of a new property, released in stages as construction progresses rather than as a single lump sum. In Australia, most major banks and non-bank lenders offer construction loans for owner-occupier and investment builds. The lender pays the builder directly at each completed stage, verified by a bank-appointed valuer or inspector. You typically pay interest only on the amount drawn down during the build, not on the full loan amount.

Construction loans work by releasing funds in progress payments that match the stages of your build, from slab to completion. Before the build starts, the lender approves the total loan based on an as-if-complete valuation of the finished property. As each stage is completed, the builder invoices the lender, an inspection confirms the work is done, and the lender releases that portion of the funds. During construction, repayments are typically interest-only on the amount drawn down so far. Once the build is finished, the loan usually converts to a standard principal and interest home loan. See our detailed guide on progress payments for a full stage-by-stage breakdown.

Most lenders require a minimum deposit of 5% to 10% of the total project cost, which includes both the land value and the build cost. A deposit below 20% typically triggers lenders mortgage insurance (LMI), adding to the overall cost. Borrowers using equity in existing property may not need cash savings at all, provided the combined loan-to-value ratio stays within lender limits. See construction loan deposit requirements for more detail on how deposits are calculated.

Yes, but with significantly tighter restrictions. Most major banks either decline owner-builder applications or cap the LVR at 60% to 70%. Lenders see owner-builders as higher risk because there is no licensed builder providing contractual guarantees on cost, timeline or defect rectification. You will typically need a quantity surveyor's cost estimate, council-approved plans, evidence of relevant trade experience or an owner-builder permit, and a larger deposit. Non-bank lenders may offer more flexibility. See our owner-builder construction loans guide.

A construction loan releases funds in stages tied to build progress, while a standard home loan releases the full amount at settlement for an existing property. Construction loans usually start with interest-only repayments on the drawn amount during the build, then convert to principal and interest after completion. Assessment also differs: lenders review the building contract, builder credentials, council approvals and an as-if-complete valuation, not just the borrower's income and the current property value. For more on how standard home loans work, see our home loans overview.

Lenders typically require identification, income evidence (payslips, tax returns or financials for self-employed borrowers), bank statements, a signed fixed price building contract, council-approved plans and specifications, the builder's registration and insurance certificates, evidence of deposit or equity, and the land title or contract of sale. Self-employed borrowers may need BAS statements or an accountant's letter. The exact list depends on the lender and whether the application is full doc or low doc. See our construction loan requirements page.

Progress payments are the staged drawdowns a lender releases to your builder as each construction milestone is completed. The standard stages in Australia are: deposit or base stage, slab or base, frame, lock-up, fit-out or fixing, and completion. At each stage, the builder submits an invoice, the lender sends a valuer or inspector to confirm the work, and then releases the funds. You pay interest only on the cumulative amount drawn, not the full loan. See construction loan progress payments for details on each stage.

The most common reasons include incomplete documentation, an unregistered or underinsured builder, no fixed price contract, unrealistic build cost estimates, council approvals not yet granted, insufficient deposit or equity, and borrower serviceability falling short of lender requirements. Owner-builder applications are more frequently declined due to the additional risk lenders associate with builds that lack a licensed builder's guarantee. Submitting a complete, well-organised application with all builder and council documents upfront reduces the risk of delays significantly.

Yes. Construction loans for investment properties work on the same progress payment structure as owner-occupier builds. Lenders assess the expected rental income alongside your personal income and expenses. The LVR may differ slightly, and some lenders cap investment construction loans at 80% of the as-if-complete valuation. A signed building contract and council-approved plans are still required. See investment property loans for more on how lenders assess investment scenarios.

A construction loan funds the build of a single dwelling, typically a house, duplex, granny flat or knockdown rebuild, for an individual borrower. Development finance funds multi-dwelling or commercial construction projects, usually assessed on feasibility, pre-sales, project costs and developer experience rather than personal income alone. If your project involves three or more dwellings, a commercial build or a subdivision, it likely fits under development finance rather than a standard construction loan.

If your build exceeds the approved loan amount, the lender will not automatically release extra funds. You will need to either fund the overrun from your own savings, apply for a loan variation (which requires a new assessment), or negotiate with the builder. A fixed price building contract protects against most cost blowouts, which is why lenders prefer them. Cost-plus contracts carry significantly more lender risk and may be harder to finance. See our guide on construction loan cost overruns.

No. Property Finance Help is not a lender, broker, credit provider or financial adviser. We provide general information and referral support for construction loan enquiries and may connect you with a suitable finance contact where appropriate. We do not make credit decisions, provide personal credit advice, or approve loans.