What Makes Custom Home Finance Different from Standard Home Loans
Construction finance for a custom home operates on a progressive drawdown structure rather than a single upfront settlement. The lender releases funds in stages as your registered builder completes specific milestones, and you only pay interest on the amount drawn down at each phase. This differs from a standard home loan where the full amount settles on one date.
Consider a buyer in Brunswick East purchasing suitable land on Falconer Street near Merri Creek Trail for a custom build. The total project might involve a land cost and a fixed price building contract with a local registered builder. Rather than receiving the full loan amount at land settlement, the buyer draws down the land portion first, then receives construction funding as the builder progresses through foundations, frame, lock-up, fixing, and practical completion. Between land settlement and the first construction draw, the buyer pays interest only on the land component.
This staged funding model means your repayments increase as the build advances. At the foundation stage, you might be paying interest on 40% of the total loan amount. By lock-up, that could be 70%. During the construction phase, most lenders offer interest-only repayment options, which keeps costs lower while you may still be renting or living elsewhere. Once the build reaches practical completion, the loan typically converts to a standard principal and interest home loan with regular repayments over the agreed term.
How the Progressive Drawing Fee and Inspection Process Works
Lenders charge a Progressive Drawing Fee to cover the administration and inspection costs associated with each construction stage. This fee typically ranges from $800 to $1,500 and is either paid upfront or capitalised into the loan amount. Each time your builder requests a progress payment, the lender arranges a progress inspection to verify the work has been completed to the standard claimed.
The inspection is conducted by a qualified building inspector who compares the completed work against the progress payment schedule in your building contract. If the builder has invoiced for frame completion, the inspector confirms the frame is up, structurally sound, and matches the approved council plans. Only after the inspection report is received and approved will the lender release that stage payment directly to the builder.
This process protects you from paying for work that has not been done. In a scenario where a builder submits a claim for lock-up but the inspector finds the window frames are not installed or weatherproofing is incomplete, the lender will withhold that portion of the draw until the deficiencies are rectified. The inspection requirement also ensures that any variations to the original scope are documented and approved before funds are released.
Understanding Fixed Price Contracts and Cost Plus Structures
Most lenders will only approve construction finance against a fixed price building contract with a licensed and insured registered builder. A fixed price contract specifies the total build cost upfront, along with a detailed progress payment schedule that allocates specific dollar amounts to each construction stage. This structure provides certainty for both you and the lender about the final cost and funding requirements.
A cost plus contract, where you pay the builder's actual costs plus a margin, is far more difficult to finance. Lenders view these as higher risk because the final loan amount is not locked in at approval. If you are engaging an owner builder arrangement or managing sub-contractors directly, including plumbers and electricians, mainstream lenders will generally decline the application. Specialist lenders do offer owner builder finance, but rates are higher and deposit requirements are typically 20% or more.
For a custom home project in Brunswick East, where construction costs are influenced by planning overlays and heritage considerations near the Heritage Overlay areas around Barkly Square, a fixed price contract also protects you from cost blowouts if the build takes longer than expected. If council approval or development application conditions require design changes, those variations should be documented and approved before they affect the payment schedule.
What Happens If You Do Not Commence Building Within the Required Timeframe
Construction loan approvals include a condition that you must commence building within a set period from the Disclosure Date, typically six to twelve months. If you purchase land but do not start construction within that window, the lender may reassess your application or withdraw the construction funding component, leaving you with a land loan only.
This timeframe reflects the lender's need to manage risk. Property values, your financial circumstances, and interest rates can all change significantly over twelve months. If construction has not commenced, the lender cannot rely on the original valuation or the progress payment structure that was approved. In practical terms, if you settle on land in Brunswick East but experience delays with your development application or builder availability, you need to communicate with your lender and request an extension before the deadline expires.
If the commencement period lapses without an approved extension, you will need to reapply for construction funding. That means a new credit assessment, updated valuation, and potentially different loan terms depending on market conditions at the time. To avoid this, work with your builder and town planner to confirm realistic timelines before you commit to land purchase, and ensure your development application is lodged or approved before settlement where possible.
Construction Loan Interest Rates and How They Compare to Standard Variable Rates
Construction loan interest rates are generally comparable to standard variable home loan rates during the construction phase, though some lenders apply a small margin to account for the additional administration involved in progressive drawdowns. During construction, you will typically pay interest only on the drawn amount, which reduces your monthly outgoings while the build is underway.
Once construction reaches practical completion, the loan converts to a construction to permanent loan structure. At that point, you can choose to lock in a fixed rate, remain on a variable rate, or split the loan between the two. Many buyers in Brunswick East prefer to fix a portion of the loan after construction is complete to manage repayment certainty, particularly if they have been renting during the build and are now transitioning to owner-occupier repayments.
Interest rate movements during construction can affect your borrowing capacity when the loan converts to principal and interest repayments. If rates have increased since your original approval, your repayments will be higher than initially projected. This is one reason why some buyers use a loan structure that allows additional payments during construction, reducing the principal before the repayment conversion occurs. Speak with your broker about whether your construction loan application includes redraw or offset features that let you get ahead while repayments are interest-only.
What Lenders Assess in a Construction Loan Application
A construction loan application is assessed on your ability to service the full loan amount at completion, not just the initial land cost. Lenders evaluate your income, existing debts, living expenses, and deposit size against the total project cost, including land, construction, and associated fees such as council approval, legal costs, and the Progressive Drawing Fee.
You will need to provide a copy of the fixed price building contract, detailed costings from your builder, evidence of council approval or development application status, and proof that your deposit covers both the land and the minimum equity required for the total project. Most lenders require a 10% deposit for construction loans, though some will accept less if you qualify for a guarantee or first home buyer scheme.
In Brunswick East, where land values are influenced by proximity to Sydney Road, public transport on the Upfield Line, and access to local schools, lenders will also assess whether the completed property value supports the total loan amount. If the combined land and construction cost exceeds the expected end value based on comparable sales, the lender may reduce the approved amount or require a larger deposit. Your broker can help you structure the application to demonstrate that the finished home will meet or exceed the valuation required for loan approval.
How Long Does Construction Take and What Does That Mean for Your Loan
A typical custom home build in Melbourne takes between nine and twelve months from commencement to practical completion, though this can extend depending on design complexity, site conditions, and builder scheduling. During this period, your construction funding is progressively drawn down according to the progress payment schedule, and you pay interest only on the amount released to date.
The longer the build takes, the longer you carry interest-only repayments on a growing loan balance. If you are renting while the build is underway, this also means you are covering both rent and loan repayments, which can strain your cash flow. For this reason, many buyers in Brunswick East time their land purchase to align with builder availability and council approval, minimising the gap between settlement and commencement.
If the build experiences delays due to weather, material shortages, or variations, your interest costs will increase. Some lenders allow you to extend the construction phase beyond the original timeframe, but this may require reapproval or additional documentation. Working with a registered builder who provides a realistic construction timeline and clear progress payment schedule reduces the risk of unexpected delays and cost increases.
Call one of our team or book an appointment at a time that works for you to discuss your construction loan options and confirm the structure that suits your build timeline and budget. We can connect you with lenders who specialise in land and construction packages and explain the approval process from development application through to practical completion.
Frequently Asked Questions
How do progressive drawdowns work in a construction loan?
The lender releases funds in stages as your builder completes specific milestones such as foundations, frame, and lock-up. You only pay interest on the amount drawn down at each phase, not the full loan amount. Each drawdown is subject to a progress inspection to verify the work has been completed.
What is a Progressive Drawing Fee and how much does it cost?
The Progressive Drawing Fee covers the lender's administration and inspection costs for each construction stage. It typically ranges from $800 to $1,500 and can be paid upfront or added to your loan amount.
Can I get a construction loan with a cost plus contract?
Most lenders require a fixed price building contract with a registered builder. Cost plus contracts are harder to finance because the final loan amount is not locked in at approval. Specialist lenders may offer finance for cost plus or owner builder projects, but at higher rates and deposit requirements.
What happens if I do not start building within the lender's timeframe?
Construction loan approvals require you to commence building within a set period, usually six to twelve months. If you miss this deadline without an approved extension, the lender may withdraw the construction funding component and you will need to reapply.
How long does a custom home build usually take in Melbourne?
A typical custom home build takes between nine and twelve months from commencement to practical completion. During this time, you pay interest only on the progressively drawn amounts, and the loan converts to principal and interest repayments once construction is complete.
