Progressive drawdown means you only access loan funds as each stage of your build completes, paying interest only on what you've drawn down rather than the full loan amount from day one.
This structure suits anyone building a new home, renovating, or purchasing a house and land package where construction happens in stages. The lender releases funds based on a progress payment schedule tied to building milestones, which means your loan balance grows gradually as the build progresses. During construction, you typically make interest-only repayments on the drawn amount, then convert to principal and interest repayments once the build completes.
How Progressive Drawdown Differs From a Standard Home Loan
A standard home loan releases the full amount at settlement. Progressive drawdown releases funds in instalments as your registered builder completes specific stages, usually footings, frame, lock-up, fixing, and practical completion. The lender arranges a progress inspection before releasing each payment, confirming the stage is complete before funds go to the builder.
Because you only pay interest on what's been drawn, your repayments during construction stay lower than they would if you borrowed the full amount upfront. If you've drawn $200,000 of a $500,000 construction loan, you're only charged interest on that $200,000 until the next stage completes and more funds release.
Most lenders offering construction loans structure them this way by default, though some charge a Progressive Drawing Fee for each inspection and payment, typically between $200 and $400 per drawdown.
When You Need This Type of Loan
You need progressive drawdown when you're building from the ground up, whether that's a custom design on land you already own, a house and land package, or a major renovation that requires staged payments to builders and sub-contractors.
Consider someone purchasing suitable land in Parramatta for $650,000, then engaging a builder on a fixed price building contract for $480,000. The lender will approve the total loan amount based on the finished value, but release the land portion at settlement, then release the construction portion progressively. This structure works because the lender's security, the property, increases in value as the build progresses.
If you're an owner builder, expect stricter criteria. Most lenders cap owner builder finance at 80% of the project cost and require evidence you can manage sub-contractors, obtain council approval, and complete within the timeframe stated in your development application. Some lenders won't offer owner builder finance at all.
Fixed Price Contracts vs Cost Plus Contracts
A fixed price building contract sets a total price before construction starts. A cost plus contract charges the actual cost of materials and labour, plus a builder's margin, with the final price confirmed only once the build completes.
Lenders prefer fixed price contracts because the loan amount and progress payment schedule are known upfront. With a cost plus contract, the final cost can shift, which introduces uncertainty around whether the approved loan amount will cover the full build. If you're using a cost plus arrangement, expect fewer lender options and potentially higher scrutiny during the construction loan application process.
In practice, most project home builders and volume builders use fixed price contracts, while custom builders occasionally propose cost plus structures. If your builder suggests cost plus, ask for a detailed breakdown of expected costs and check whether your lender will accept that structure before signing.
The Progressive Payment Schedule Explained
The progress payment schedule outlines when funds release and what percentage of the build cost each stage represents. A typical schedule might look like this: 10% deposit on signing, 15% on base stage, 20% on frame stage, 20% on lock-up, 20% on fixing, and 15% on practical completion. The exact split depends on your builder and the contract terms.
Your lender will want a copy of the building contract and the payment schedule before approving the loan. Once approved, they appoint a quantity surveyor or building inspector to confirm each stage is complete before releasing the next payment. The builder invoices based on the agreed schedule, the inspector verifies the work, and the lender transfers funds directly to the builder, usually within a few business days.
If the build delays, your loan approval remains valid for a set period, often six months from the Disclosure Date. If construction hasn't started by then, you may need to reapply or extend the approval, which can trigger a reassessment of your financial position and the construction loan interest rate.
Interest Only Repayment Options During Construction
Most construction funding arrangements default to interest-only repayments while the build progresses. You pay interest only on the amount drawn down, not the full approved loan amount, which keeps repayments lower during a period when you might still be paying rent or living elsewhere.
Once construction reaches practical completion and you receive the occupancy certificate, the loan converts to principal and interest repayments based on the full loan amount. Some lenders allow you to make additional payments during construction to reduce the balance early, though this depends on the loan structure and whether the interest rate is fixed or variable.
If you're building an investment property, the interest you pay during construction is usually tax-deductible, even if the property isn't generating rental income yet. Keep records of all drawdowns and interest charges for your accountant.
What Happens If the Build Goes Over Budget
If construction costs exceed the approved loan amount, you'll need to cover the difference from your own funds. This can happen if you make changes to the build after signing the contract, if council plans require adjustments, or if the builder identifies unforeseen issues like poor soil conditions.
Before signing the building contract, compare the builder's quote against the lender's valuation of the finished property. If the valuation comes in lower than expected, the lender may reduce the approved loan amount, leaving you to either inject more deposit or negotiate a lower build cost. In our experience, clients building custom homes sometimes underestimate the cost of upgrades like quality fixtures, landscaping, and driveways, which can add $30,000 to $50,000 to the final bill.
Some lenders allow you to increase the loan amount mid-build if your financial position supports it, but this isn't automatic. If you think you'll need extra funds, factor that into your borrowing capacity assessment before you start.
Timing Your Land Purchase and Build Commencement
Most lenders require you to commence building within a set period from the Disclosure Date, typically six to twelve months. If you purchase land but delay engaging a builder, your construction loan approval may lapse, requiring a new application under potentially different lending criteria or interest rates.
For a land and construction package, the land purchase and construction loan often settle simultaneously or within a few weeks. The lender secures the land as collateral, then releases construction funds progressively. If you already own the land, the lender will use the land's current value as part of your deposit, which can improve your loan-to-value ratio and reduce the amount you need to borrow.
If you're looking at residents in Parramatta or nearby suburbs like Granville, land prices have risen enough in recent years that using existing equity from another property to fund the land portion, then drawing construction funds progressively, is a common structure for buyers building their next home while holding an investment property.
How Lenders Assess Construction Loan Applications
Lenders assess your income, expenses, existing debts, and the project's viability. They'll want proof of council approval, a copy of the fixed price building contract, details of your registered builder, and evidence that you have enough funds to cover the deposit and any gaps between drawdowns.
If you're borrowing more than 80% of the property's finished value, you'll likely need lenders mortgage insurance, which adds to your upfront costs. If you're using a builder who isn't on the lender's approved list, expect additional scrutiny or a declined application. Volume builders and project home builders are usually pre-approved by most lenders, while small custom builders may need to provide additional documentation.
Your borrowing capacity during construction is calculated differently than for a standard home loan because the lender considers both your current housing costs and the future repayments once the loan converts to principal and interest. If you're stretching your budget, this can reduce how much you're approved for.
If you're already working with a construction loans specialist, they'll guide you through the documentation and match you with lenders who suit your project type. If you're comparing options yourself, check whether the lender charges a Progressive Drawing Fee for each payment, as five or six drawdowns at $300 each adds $1,500 to $1,800 to your build cost.
Progressive drawdown keeps your loan costs proportional to the build progress, and if you structure it correctly, you'll move into your new home with a clear understanding of what you owe and what your ongoing repayments look like. If you're planning a build and want to confirm your loan structure suits your timeline and budget, call one of our team or book an appointment at a time that works for you.
Frequently Asked Questions
How does progressive drawdown work on a construction loan?
Progressive drawdown releases loan funds in stages as your build reaches specific milestones like footings, frame, and lock-up. You only pay interest on the amount drawn down, not the full loan, which keeps repayments lower during construction.
Do I need a fixed price building contract for a construction loan?
Most lenders prefer fixed price contracts because the total cost and payment schedule are known upfront. Cost plus contracts are harder to finance because the final cost isn't confirmed until the build completes, adding uncertainty for the lender.
What happens if my construction goes over budget?
If costs exceed your approved loan amount, you'll need to cover the difference from your own funds. Some lenders allow you to increase the loan mid-build if your financial position supports it, but this isn't guaranteed.
Can I make extra repayments during construction?
Some lenders allow additional payments during construction to reduce your balance, though this depends on whether your loan has a fixed or variable interest rate. Check your loan terms before making extra payments.
How long do I have to start building after getting loan approval?
Most lenders require you to commence building within six to twelve months from the loan's Disclosure Date. If you delay, your approval may lapse and you'll need to reapply under current lending criteria.
