How Construction Loans Differ from Standard Home Loans
Construction finance operates on a progressive drawdown model where you only pay interest on funds released at each building stage, rather than the full loan amount upfront. A registered builder submits progress claims tied to specific milestones, such as slab completion or roof installation, and the lender releases funds after a progress inspection confirms the work meets the agreed standard. This structure reduces your interest costs during the build but requires coordination between your builder, lender, and often council approval processes.
Consider a couple in Wright building a custom home on a block they already own. Their builder quotes $520,000 under a fixed price building contract with five progress payments. At slab stage, the lender releases 15% of the construction loan amount after an independent valuer inspects the site. The couple pays interest only on that drawn portion, not the full $520,000, which keeps their repayments lower during the six-month build. Once construction completes and they receive an occupancy certificate, the loan converts to a standard home loan with principal and interest repayments.
The progressive drawdown schedule means you need enough buffer in your loan amount to cover all progress payments plus contingency for variations. Lenders typically add 10% to the contract price when assessing your loan amount to account for cost overruns. If your builder's quote is $520,000, expect the lender to approve around $570,000 in construction funding, though you only draw what you actually spend.
Fixed Price Contracts and Cost Plus Arrangements
Most lenders prefer fixed price contracts because they limit financial risk. Under this structure, your builder agrees to complete the project for a set amount regardless of material price fluctuations or unforeseen site conditions. The contract lists every inclusion, from plumbing fixtures to electrical fittings, and any change you request triggers a formal variation with a revised quote. Lenders find this predictable, and it simplifies the progress payment schedule since each milestone corresponds to a predetermined percentage of the total contract price.
Cost plus contracts, where you pay actual costs plus a builder's margin, offer more flexibility for custom design work but complicate lending. The final cost remains uncertain until construction finishes, which increases the lender's exposure. Some lenders won't fund cost plus arrangements at all, while others require larger deposits or apply higher interest rates to offset the risk. If you're building a highly customised home in Wright and prefer cost plus, expect your broker to approach specialist lenders rather than the major banks.
A fixed price building contract also protects you if the builder encounters unexpected site issues. If excavation reveals rock that requires additional earthworks, the builder absorbs that cost under a fixed price agreement unless the contract specifically excludes certain site conditions. Always review exclusions with your conveyancer before signing, as some builders carve out items like retaining walls or services connection, leaving you to fund those separately.
Land and Construction Packages in Molonglo Valley
Wright sits within the Molonglo Valley development, where many builders offer house and land packages that combine a titled block with a project home design. These packages simplify construction loan applications because the land component settles first, giving the lender security over a titled asset before releasing construction funds. You'll need a deposit that covers both the land purchase and a portion of the building cost, typically around 10% to 20% of the combined value depending on whether you qualify for a guarantee scheme.
The land and build loan structure usually involves two settlements. First, you settle on the land using a portion of your approved loan, which means you start paying interest on that amount immediately. Once the builder obtains a development application and council approval, construction begins and the lender releases funds according to the progress payment schedule. If there's a delay between land settlement and the start of construction, you're paying interest on the land without yet living in the home, so timing becomes critical.
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Most builders in Wright require you to commence building within a set period from the disclosure date, often six to twelve months. If council plans take longer than expected or if you delay finalising selections, you may breach the building contract and lose your deposit. Lenders also impose time limits on construction loan approvals, typically requiring the build to start within 90 days of formal approval. Coordinating these deadlines requires attention to your development application timeline and builder scheduling.
How Progress Payment Schedules Work
A typical progress payment schedule for a standard home in the ACT divides the building contract into five or six stages: deposit, base stage (slab or footings), frame stage, lockup (roof and external walls), fixing stage (internal fit-out), and final completion. The builder invoices after completing each stage, and the lender arranges a progress inspection before releasing funds directly to the builder. You don't handle the cash, the lender pays the builder once the valuer confirms the stage is complete.
Each drawdown incurs a progressive drawing fee, usually between $300 and $500 per inspection depending on the lender. Over a five-stage build, these fees add $1,500 to $2,500 to your total costs. Some lenders cap the number of progress inspections they'll fund, so if your builder requests additional payments outside the standard schedule, you may need to cover those inspection fees yourself or negotiate with your broker to find a lender with more flexible terms.
Interest accrues daily on the drawn amount, so if $150,000 is released at frame stage, you pay interest only on that portion until the next drawdown. Your repayments increase as more funds are released, which can strain cash flow if you're also paying rent elsewhere during the build. Setting up interest-only repayment options during construction keeps payments lower, though you'll switch to principal and interest once the loan converts to a standard home loan after completion.
Owner Builder Finance and Renovation Projects
If you're acting as an owner builder in Wright, securing construction funding becomes more complex. Most mainstream lenders won't approve owner builder finance because they can't rely on a registered builder's warranty or progress certification. Specialist lenders do offer this product, but expect deposit requirements of 20% or higher and interest rates above standard construction loan rates. The lender releases funds based on invoices you submit from sub-contractors, such as plumbers and electricians, and you'll need to demonstrate project management experience or engage a qualified supervisor.
Renovation finance follows a similar progressive drawdown model but applies to existing homes rather than new builds. If you're buying an older home in nearby Coombs and planning a major renovation, the lender will assess both the purchase price and the renovation budget. They'll require detailed quotes from your builder, council approval for any structural changes, and a clear scope of works. Funds release as each renovation stage completes, just as they would for new home construction. For more detail on this approach, review options under construction loans to understand how lenders assess renovation projects differently from new builds.
Converting to Permanent Finance After Completion
A construction to permanent loan automatically converts to a standard mortgage once you receive final council approval and an occupancy certificate. During construction, you make interest-only payments on drawn funds. After conversion, the loan switches to principal and interest repayments based on the full loan amount, which typically increases your monthly commitment. Planning for that repayment increase before you start building prevents cash flow issues once you move in.
Some lenders allow you to lock in a fixed rate at the start of construction, even though you won't draw the full loan amount for several months. This protects you if interest rates rise during the build, though you'll pay a slightly higher rate than the current variable rate in exchange for that certainty. Other lenders only set the rate at the time of final conversion, leaving you exposed to rate movements during construction. Discussing rate lock options with your broker when you lodge the construction loan application gives you time to compare products and choose the structure that suits your risk tolerance.
Once construction completes, the lender orders a final valuation to confirm the property's value matches the total funds advanced. If the valuation comes in lower than expected due to market conditions or cost overruns, you may need to contribute additional funds to meet the lender's loan-to-value ratio requirements. Building in a contingency buffer at the start reduces the chance of this scenario, but it remains a risk in markets where property values fluctuate during long build periods.
If you're ready to discuss how a construction loan suits your build plans in Wright, call one of our team or book an appointment at a time that works for you.
Frequently Asked Questions
How does a construction loan differ from a standard home loan?
Construction finance releases funds progressively as each building stage completes, and you only pay interest on the amount drawn down rather than the full loan amount upfront. Once construction finishes and you receive an occupancy certificate, the loan converts to a standard home loan with principal and interest repayments.
What is a fixed price building contract?
A fixed price contract sets a total build cost that doesn't change regardless of material price fluctuations or unforeseen site conditions, unless you request formal variations. Lenders prefer this structure because it limits financial risk and simplifies the progress payment schedule.
What fees apply during the construction drawdown process?
Lenders charge a progressive drawing fee for each progress inspection, typically between $300 and $500 per stage. Over a standard five-stage build, these fees add $1,500 to $2,500 to your total costs.
Can I get a construction loan as an owner builder?
Most mainstream lenders won't approve owner builder finance, but specialist lenders offer this product with deposit requirements of 20% or higher and interest rates above standard construction loan rates. You'll need to submit invoices from sub-contractors and may need to demonstrate project management experience.
When does a construction loan convert to a permanent loan?
The loan converts to a standard mortgage once you receive final council approval and an occupancy certificate. At that point, you switch from interest-only payments on drawn funds to principal and interest repayments on the full loan amount.
