Construction Loans: What You Need to Know

Building a new home in the Barossa Region requires a different financing structure than purchasing an existing property. Construction loans release funds in stages as your build progresses, which means you only pay interest on the amount drawn down at each phase, rather than the full loan amount from day one.

Understanding how progressive drawdown works and what lenders require before approving construction loans will determine whether your project proceeds on schedule or faces costly delays.

How Progressive Drawdown Reduces Your Interest Costs

With construction finance, your lender releases funds according to a progress payment schedule tied to specific building milestones. You pay interest only on the amount released, not the total loan amount, until construction completes.

Consider someone building a $650,000 home in Nuriootpa with a land value of $280,000. Their total loan amount is $930,000. At the base stage, the lender might release $120,000. Interest charges apply only to that $120,000 until the frame stage is reached and the next drawdown occurs. Over a typical six-month build, this structure can reduce interest costs by several thousand dollars compared to borrowing the full amount upfront.

Lenders typically divide the build into five or six stages: base, frame, lock-up, fixing, practical completion, and final completion. Each stage requires a progress inspection by the lender's valuer before funds are released. A Progressive Drawing Fee, usually between $300 and $600 per inspection, covers this cost.

What Lenders Require Before Approving Building Finance

Lenders need council approval, a fixed price building contract, and evidence that you're using a registered builder before they'll approve construction funding. The contract must detail the progress payment schedule and specify when building will commence, typically within 90 days from the Disclosure Date.

In our experience working with clients across the Barossa Valley, one of the most common delays occurs when buyers underestimate how long council plans take to finalise. Angaston and Tanunda both have heritage overlay requirements in certain zones, which can extend approval timeframes. Your registered builder should manage this process, but lenders won't release funds until all approvals are documented.

The loan amount must cover not just the building contract but also additional costs like site works, driveways, landscaping, and connection fees for water and power. Many buyers focus only on the contract price and find themselves short when these costs emerge during the build. Lenders assess your borrowing capacity based on the total project cost, not just the construction price.

Land and Construction Packages Versus Separate Purchases

You can finance your build either as a single land and construction package or by purchasing land first and arranging building finance separately. Each approach affects your deposit requirement and approval process differently.

A land and construction package combines both purchases into one loan, which means you need only one deposit and one settlement process. However, you must have your building contract and council approval finalised before settlement on the land occurs. If your builder's timeline slips or council approval takes longer than expected, you may face pressure to settle on land before you're ready to build, which creates holding costs.

Buying suitable land first gives you more time to finalise building plans and obtain council approval without settlement pressure. The drawback is that you'll need sufficient deposit for the land purchase, then qualify for construction finance on top of your existing land loan. This approach works well for buyers who've found the right block but need time to work through custom design options with their builder.

Owner Builder Finance and Why It's Harder to Secure

Owner builder finance exists but requires a much larger deposit and attracts higher interest rates than standard construction loans. Most mainstream lenders won't approve owner builder applications at all.

Lenders view owner builders as higher risk because the borrower lacks the professional project management systems and trade relationships that registered builders bring. Without a builder managing the schedule, paying sub-contractors on time, and coordinating plumbers, electricians, and other trades, projects can stall or run over budget. When that happens, the borrower may not have funds to complete the build, leaving the lender with an incomplete property as security.

If you're considering an owner builder approach to reduce costs, factor in that you'll likely need a 30% to 40% deposit rather than the standard 10% to 20%, and your interest rate may sit 1% to 2% higher than standard construction loan rates. For most people building in the Barossa Region, using a registered builder with a fixed price building contract provides certainty that outweighs any potential savings from managing the build yourself.

How Interest-Only Repayments Work During Construction

Most construction loans include interest-only repayment options during the building phase, which keeps your monthly outgoings lower while you're potentially paying rent or covering your existing mortgage elsewhere. Once construction completes and the loan converts to a standard home loan, you begin making principal and interest repayments.

Interest-only periods typically run for 12 months, which covers the build phase plus a buffer. If your build extends beyond 12 months due to delays, you may need to request an extension or begin principal repayments before moving in. Your lender will usually accommodate reasonable extensions if you're working with a registered builder and the delay isn't due to funding issues on your side.

The conversion from construction to permanent loan happens automatically once your lender receives confirmation of practical completion. Your interest rate structure, whether variable or fixed, carries over from your initial approval. If rates have moved significantly during your build, you can discuss refinancing options once the loan converts, but you're not locked into unfavourable terms simply because markets shifted while you were building.

Securing Pre-Approval Before You Commit to a Builder

Obtaining conditional approval for construction finance before signing with a builder protects you from committing to a contract you can't fund. This approval process examines your income, existing debts, and deposit position to confirm the loan amount you can access.

Many buyers in the Barossa Region, particularly first home buyers, assume they'll qualify for construction finance because they've been saving a deposit. However, lenders assess construction loans more strictly than standard purchases because of the additional complexity and risk. Knowing your approved loan amount before you finalise building plans means you can adjust the design or fittings to stay within budget rather than discovering you're $50,000 short after signing the contract.

Conditional approval also strengthens your position when negotiating with builders. It demonstrates you're a serious buyer with funding arranged, which can provide leverage on contract terms or inclusion packages. Builders prioritise buyers who can demonstrate financial capacity because it reduces their risk of contract cancellations or payment delays during the build.

Additional Payments and Why They Matter

Fixed price contracts protect you from cost overruns on the agreed scope, but any changes you request during construction become additional payments outside the contract price. Upgrading tapware, adding extra power points, or changing floor tiles all generate variation costs that you'll need to fund separately.

These variations aren't covered by the progressive drawdown schedule because they weren't part of the original contract that your lender approved. You'll need to pay them from your own funds as they arise, which means maintaining a buffer beyond your deposit and other project costs. In a scenario where you've committed your entire savings to the deposit and standard costs, unexpected variations can create financial pressure mid-build.

Some lenders allow you to capitalise small variations into your loan if you have sufficient equity and borrowing capacity, but this requires a formal variation to your loan agreement and isn't guaranteed. Planning for at least $10,000 to $15,000 in variation costs on a typical project home build means you won't need to compromise on important details because you've run out of cash during construction.

Call one of our team or book an appointment at a time that works for you. We'll review your build plans, run through the construction finance structure that suits your situation, and arrange approvals before you commit to your builder.

Frequently Asked Questions