How Construction Finance Differs from a Standard Home Loan
A construction loan releases funds in stages as your build progresses, not as a lump sum at settlement. You draw down money at key milestones such as slab pour, frame-up, lock-up, and completion, with the lender inspecting the work before releasing each payment. During the build, you only pay interest on the amount drawn down so far, which keeps your outgoings lower until the home is finished.
This staged approach protects both you and the lender. The bank knows funds are being used for actual construction progress, and you're not carrying interest on money sitting idle. Once the build is complete, the loan typically converts to a standard home loan with principal and interest repayments, often referred to as a construction to permanent loan.
In Sunbury, where land and construction packages are common, lenders will assess both the land purchase and the building contract as a single transaction. You'll need council approval and a fixed price building contract with a registered builder before most lenders will proceed.
What Lenders Look for in a Land and Build Application
Lenders want to see that the land is suitable for construction and that your builder has the right credentials. They'll review the building contract, confirm the builder is registered and insured, and check that council plans have been approved or are close to approval. If you're buying land without immediate plans to build, some lenders require you to commence building within a set period from the Disclosure Date, often 12 to 18 months.
Your borrowing capacity will be assessed based on the completed property value, not just the land cost. The lender orders a valuation that estimates what the home will be worth once construction is finished. If that valuation falls short of your total loan amount, you'll need to increase your deposit or adjust the build scope.
Consider a buyer purchasing land in Sunbury's newer estates near Boardwalk Boulevard for $350,000 with plans to build a four-bedroom home. The build contract is $480,000, making the total project $830,000. The lender's valuation comes back at $850,000, which supports the loan. The buyer has a 10% deposit, or $83,000, plus funds to cover stamp duty and settlement costs. The lender approves the loan with progressive drawdown, and construction begins within four months of land settlement.
How the Progressive Drawing Schedule Works in Practice
Most construction loans follow a five-stage progress payment schedule tied to physical milestones: base stage (slab or footings), frame stage, lock-up (roof and windows), fixing (internal fit-out), and completion. At each stage, the builder invoices you, the lender arranges a progress inspection, and once satisfied, releases the funds directly to the builder. You'll typically pay a Progressive Drawing Fee at each drawdown, which covers the lender's inspection and administration costs.
Between drawdowns, you're charged interest only on the amount released so far. If $200,000 has been drawn and the construction loan interest rate is 6.5%, you're paying interest on $200,000, not the full loan amount. This keeps repayments manageable while the property isn't generating any income or utility for you.
Builders expect payment within a set window after reaching each milestone, so delays in the lender's inspection process can cause tension. Choosing a lender experienced with construction funding reduces these friction points. Some lenders allow you to request the inspection as soon as the stage is reached, while others require the builder to submit documentation first.
When Owner Builder Finance Makes Sense and When It Doesn't
If you're planning to act as an owner builder, your loan options narrow significantly. Most mainstream lenders won't touch owner builder projects due to the higher risk of cost blowouts and incomplete builds. Specialist lenders do offer owner builder finance, but expect stricter terms, higher interest rates, and a larger deposit requirement, often 20% or more.
You'll also need to demonstrate relevant building experience, provide a detailed cost breakdown, and show proof of trade quotes from plumbers, electricians, and other sub-contractors. Even with approval, you'll be managing the progress payment schedule yourself, which means coordinating inspections, submitting invoices, and ensuring each trade is paid on time.
For most buyers in Sunbury, especially those balancing work and family commitments, using a registered builder under a fixed price building contract offers more certainty. The builder carries the responsibility for project management, and the lender's inspection process is more straightforward.
Fixed Price Contracts vs Cost Plus: What Your Lender Prefers
Lenders strongly favour fixed price building contracts because they cap your exposure to cost overruns. A fixed price contract states the total build cost upfront, with variations only allowed if you request changes. This gives the lender confidence that the loan amount will cover the project and that you won't be scrambling for additional funds halfway through.
A cost plus contract, where you pay the builder's actual costs plus a margin, introduces uncertainty. The final price can shift based on material costs, weather delays, or unforeseen site conditions. Most mainstream lenders either decline cost plus contracts or require a substantial buffer in your loan to cover potential increases.
In Sunbury, where project home builders dominate the new construction market, fixed price contracts are the norm. If you're pursuing a custom design with an architect and a boutique builder, clarify the contract structure early and discuss it with your broker before committing.
How Long the Process Takes from Application to First Drawdown
From the time you submit a construction loan application to the first drawdown, expect eight to twelve weeks if everything proceeds without delays. The lender needs to review the land contract, obtain a valuation, assess your financials, approve the building contract, and confirm council approval. If any document is missing or the valuation is delayed, the timeline extends.
Once the loan is approved and the land settles, construction can begin. The first drawdown, typically at base stage, occurs four to eight weeks into the build depending on site preparation and weather. Each subsequent stage takes four to six weeks on average, so a full build cycle from slab to completion runs six to nine months for a standard project home.
In our experience, buyers who engage a broker early and get their documents organised before signing the building contract shave weeks off the approval process. The land contract and building contract need to align, and any mismatch in timing between land settlement and construction start can trigger holding costs you weren't expecting.
What Happens If the Build Runs Over Budget or Over Time
If your build exceeds the contracted price due to variations you've requested, you'll need to fund the difference from your own savings or negotiate additional borrowing with the lender. Most lenders build a small buffer into the loan if the valuation supports it, but anything beyond that is your responsibility. Variations should be approved in writing by the builder and costed before work begins, not added informally during construction.
Time delays are more common than cost blowouts, especially with material shortages or wet weather in winter months. Your interest-only repayment continues for the extended period, which increases your total interest cost but doesn't usually derail the loan. If delays stretch beyond six months and the building contract looks at risk, the lender may step in and request an updated valuation or progress report from an independent inspector.
Sunbury's clay soil can cause delays during wet months, particularly in newer estates with less established drainage. Factor this into your timeline if you're planning to move in by a specific date, and keep a financial buffer for extended interest-only repayments.
Interest-Only Repayments During Construction and What Comes After
During the construction phase, your loan operates on interest-only repayment terms. You're charged interest on the drawn amount, calculated daily and charged monthly. As each drawdown occurs, your repayment increases slightly to reflect the additional funds released. This structure keeps your repayments lower while you're still paying rent or living elsewhere.
Once construction is complete and the final inspection clears, the loan converts to a standard home loan with principal and interest repayments. The interest rate may adjust at this point, depending on whether you've locked in a fixed rate or moved to a variable rate. Some lenders offer interest rate discounts once the loan converts, so confirm this with your broker during the application stage.
If you're planning to rent out the property once built, check whether your lender will allow the loan to remain interest-only after completion, as it may be structured as an investment loan instead.
How to Choose Between Lenders for Construction Funding
Not all lenders handle construction loans, and among those that do, the differences in process, fees, and interest rates are significant. Some banks require you to hold separate accounts for the land loan and construction loan, which complicates your cashflow tracking. Others roll everything into a single facility with staged limits.
The construction loan interest rate is typically slightly higher than a standard home loan rate, reflecting the added complexity and risk. Some lenders offer a discounted rate during construction that adjusts once the loan converts, while others keep the rate consistent throughout. The Progressive Drawing Fee per drawdown can range from $300 to $800, so over five drawdowns, that's an additional $1,500 to $4,000 in costs.
Step Ahead Finance works with lenders across Australia who understand local conditions in Sunbury, including the mix of house and land packages and the builders operating in the area. The right lender depends on your deposit size, whether you're a first-time buyer or investor, and how quickly you need the loan to settle.
Call one of our team or book an appointment at a time that works for you. We'll walk through your building plans, confirm what the lender will need, and make sure the loan structure fits both the construction phase and the years that follow.
Frequently Asked Questions
How does a construction loan differ from a standard home loan?
A construction loan releases funds in stages as your build progresses, not as a lump sum at settlement. You only pay interest on the amount drawn down so far, which keeps your outgoings lower until the home is finished. Once the build is complete, the loan typically converts to a standard home loan with principal and interest repayments.
What do lenders look for in a land and build application?
Lenders want to see that the land is suitable for construction and that your builder is registered and insured. They'll review the building contract, confirm council plans have been approved or are close to approval, and assess your borrowing capacity based on the completed property value, not just the land cost.
How long does it take from application to the first drawdown?
From the time you submit a construction loan application to the first drawdown, expect eight to twelve weeks if everything proceeds without delays. The lender needs to review the land contract, obtain a valuation, assess your financials, approve the building contract, and confirm council approval.
What happens if the build runs over budget?
If your build exceeds the contracted price due to variations you've requested, you'll need to fund the difference from your own savings or negotiate additional borrowing with the lender. Most lenders build a small buffer into the loan if the valuation supports it, but anything beyond that is your responsibility.
Do I pay interest during construction?
During construction, your loan operates on interest-only repayment terms. You're charged interest on the drawn amount, calculated daily and charged monthly. Once construction is complete, the loan converts to a standard home loan with principal and interest repayments.
