home loans for building your own home: how they work and what to check

How construction lending works

A construction loan releases funds in stages, called drawdowns or progress payments, as your builder hits milestones. You usually pay interest-only on the amount drawn during the build, then switch to principal and interest when the home is complete. Lenders order progress valuations, check invoices, and may require a contingency buffer for cost overruns.

Eligibility and documents

Expect to provide your deposit source, land contract, council-approved plans, a fixed-price building contract, and insurances. Lenders assess income, expenses, and loan-to-value ratio; higher LVRs can trigger Lenders Mortgage Insurance. Owner-builder projects face tighter criteria and lower maximum LVRs.

Comparing lenders and costs

Look beyond the headline rate. Compare fees for progress inspections, variations, and settlement, plus how quickly the lender processes draws. Choose a bank with proven construction experience and flexible policies. A clear timeline and well scoped contract reduce delays and protect your cash flow.

• Get pre-approval aligned to your budget and plans.
• Order a valuation covering land plus build.
• Set staged payments tied to milestones.
• Track invoices and keep a buffer.
• Arrange final inspection and occupancy certificates.