Smart Ways to Approach Construction Loan Preparation

What You Need Before Applying for Construction Finance

You'll need council approval, a fixed price building contract, and proof of your deposit before most lenders will assess a construction loan application. That's the baseline, but there's more to preparing well than just gathering documents. The smoother your preparation, the fewer delays you'll face once the build starts.

Construction finance works differently to a standard home loan because the money gets released in stages as the build progresses, not as a lump sum at settlement. Lenders want to see that you've thought through the timing, the costs, and the variables that come with building from scratch. If you're an essential worker looking to build rather than buy established, understanding what lenders need upfront will put you in a stronger position.

Getting Your Land and Contracts in Order

Your land needs to be suitable for construction, and you'll need to either own it outright or have conditional approval to purchase it before most lenders will proceed. If you're buying a house and land package, the developer usually coordinates this, but if you've already got land or you're buying separately, you'll need to confirm that the title is clear and that council plans allow for residential construction.

The building contract is just as important. Lenders prefer a fixed price building contract with a registered builder because it reduces the risk of cost blowouts. The contract should include a detailed progress payment schedule that outlines when funds will be drawn down at each stage of the build. Lenders use this schedule to release funds progressively, so if it's vague or incomplete, your application will stall.

Consider a buyer who's a nurse in Cranbourne looking to build on a block she already owns. She's got council approval and a fixed price contract, but the payment schedule from her builder lists five stages without breaking down what work happens at each stage. The lender asks for more detail before they'll approve the loan, which delays the start date by three weeks. A more detailed schedule upfront would have avoided that.

Understanding How Construction Loan Interest Works

Lenders only charge interest on the amount drawn down, not the full loan amount. That means during the build, you're paying interest on whatever's been released so far, which keeps your repayments lower in the early stages. Most construction loans offer interest-only repayment options during the build period, which gives you time to manage costs without the pressure of principal repayments.

Once the build is finished and you've got your certificate of occupancy, the loan converts to a standard home loan with principal and interest repayments. This is called a construction to permanent loan, and it's the most common structure. You don't need to reapply or refinance once the build is done, which saves time and avoids a second round of application costs.

Some lenders also charge a Progressive Drawing Fee each time they release funds. This typically ranges from $200 to $400 per drawdown, and with most builds involving five to six stages, that can add up to a couple of thousand dollars. Factor this into your budget when you're calculating how much you need to borrow.

Preparing Your Deposit and Genuine Savings

Most lenders want to see a deposit of at least 10% of the total project cost, which includes both the land and the build. If you're borrowing more than 80% of the total value, you'll need to pay lenders mortgage insurance, which increases your upfront costs. Genuine savings are usually required as well, meaning funds that have been in your account for at least three months.

If you're buying land separately and then building, you'll need enough deposit to cover the land purchase first, and then additional funds for the construction phase. Some lenders will let you use equity in the land as part of your deposit for the build, but you'll need a valuation to confirm what that equity is worth.

As an example, a paramedic in Tarneit wants to build a custom home on a block he's buying for $280,000. The build is quoted at $420,000, so the total project cost is $700,000. He needs a 10% deposit, which is $70,000, plus enough to cover stamp duty on the land, legal fees, and the first stage payment to the builder. He's saved $65,000, but he's short on the cash needed to commence building within the set period from the disclosure date. A mortgage broker helps him restructure the timing so he buys the land first with a smaller deposit using a guarantee from his parents, then applies for the construction loan once the land settles.

What Happens During the Progressive Drawdown

Once your loan is approved and the build starts, the lender releases funds according to the progress payment schedule in your building contract. Typically, there are five or six stages: base stage, frame stage, lock-up, fixing, and completion. Before each payment is released, the lender arranges a progress inspection to confirm that the work has been done to the required standard.

If the inspector finds that the builder hasn't reached the stage outlined in the contract, the lender won't release the funds until the issue is resolved. This is one reason why having a registered builder and a detailed contract matters. It protects you and keeps the build moving.

You'll need to stay on top of the payment schedule and make sure your builder is submitting drawdown requests on time. Delays in requesting funds can slow the build, especially if the builder is waiting on payment to book in plumbers, electricians, or other sub-contractors. Communication between you, your builder, and your lender needs to be clear from the start.

Preparing Financial Documents for Your Application

Lenders assess construction loan applications more carefully than standard home loans because there's more risk involved. You'll need to provide recent payslips, tax returns if you're self-employed, bank statements, and proof of any other income. If you're an essential worker with stable employment, that works in your favour, but lenders still want to see that you can service the loan during and after the build.

If you're planning to live elsewhere while the build is happening, you'll need to show that you can cover both your current rent or mortgage and the construction loan interest at the same time. This is where borrowing capacity becomes relevant. Running the numbers before you apply helps you understand what you can afford without stretching yourself too thin.

Some lenders also want to see evidence that you've factored in contingency costs. Builds can go over budget due to site conditions, design changes, or material price increases. Having a buffer of 5% to 10% of the build cost set aside shows that you've thought ahead.

Choosing Between a Project Home and a Custom Design

Project home loans are typically more straightforward to approve because the builder uses a standard design and the costs are predictable. Custom home finance can take longer to assess because lenders need to review the plans, the builder's quote, and any unique features that might affect the build cost or timeline.

If you're going custom, make sure your development application and council approval are finalised before you apply for finance. Lenders won't approve a construction loan on a design that hasn't been signed off by council. If there are any conditions attached to the approval, such as requirements for drainage or landscaping, factor those into your budget as well.

Timing Your Application and Build Start

Most construction loan approvals are valid for three to six months, and the building contract will usually require you to commence building within a set period from the disclosure date. If you apply too early and there are delays with council approval or your builder's schedule, your loan approval might expire before the build starts, and you'll need to reapply.

Timing also matters if you're trying to take advantage of a particular construction loan interest rate. Rates can change between application and drawdown, so if you're concerned about rate movements, talk to your broker about whether a rate lock is available and what it costs.

If you're planning a renovation or a knockdown rebuild rather than building on vacant land, the timing gets more complicated because you'll need to arrange temporary accommodation and coordinate the demolition with your builder and lender. Preparation in that situation means lining up every stage before you submit the loan application.

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