Avoid These 7 Construction Loan Documentation Mistakes

A construction loan application involves more documentation than a standard home loan because lenders need to assess both your capacity to repay and the viability of the build itself.

The council approval, building contract, and progress payment schedule are not optional extras you submit later. They form the basis of how lenders calculate risk and structure your loan. Get them wrong or leave them incomplete, and your application stalls before the first slab gets poured.

Submitting a Building Contract Without a Fixed Price

Lenders require a fixed price building contract before they'll approve construction finance. A cost plus contract, where the final price depends on actual expenses plus a builder's margin, creates uncertainty that most lenders won't accept.

Consider a client looking to build in Mount Eliza with a budget of around $650,000 for the construction component. They approached a builder who offered a cost plus arrangement, arguing it would give them more flexibility with finishes. When they applied for finance, the lender declined the application outright. The issue was not the builder's credentials or the design, it was the contract structure. Without a fixed price, the lender couldn't assess whether the loan amount would cover the build or whether the client could service the debt if costs escalated.

They returned to the builder, negotiated a fixed price contract with a detailed specification, and resubmitted. The application was approved within two weeks. The fixed price building contract is non-negotiable for almost every lender offering construction loans.

Missing or Outdated Council Approval Documents

Your development application and council approval must be current and unconditional before settlement on the land. Conditional approvals, where you still need to satisfy certain requirements before works can commence, are not enough for most lenders.

Lenders also want confirmation that the approval aligns with the building contract. If your council plans show a single-storey home but your builder's contract describes a two-storey design, the application gets referred back. It sounds obvious, but it happens when clients make changes during the planning phase and forget to update the submitted documents.

In one scenario, a couple had council approval for a renovation and extension but the approval had technically lapsed because they missed the commencement deadline by three weeks. They assumed the builder could start and the council would overlook it. The lender required proof of a valid, in-date approval. They had to resubmit to council, which added six weeks to the timeline and pushed the build into a less favourable weather window.

Incomplete or Inconsistent Progress Payment Schedules

Lenders fund construction loans through progressive drawdowns, releasing money at set stages of the build. Your progress payment schedule must match the construction draw schedule the lender uses, and both must align with the building contract.

Most lenders use a five or six-stage payment structure: base stage, frame stage, lockup, fixing, and completion. Some builders prefer different milestone definitions or request payments at seven or eight stages. If the schedules don't match, the lender either rejects the contract or requires the builder to revise it.

The amounts also matter. If your builder wants 40% upfront at base stage and the lender's policy caps the first drawdown at 20%, you'll need to either fund the gap yourself or renegotiate the contract. Lenders only charge interest on the amount drawn down, so they control when and how much gets released. A mismatch between builder expectations and lender policy creates a funding gap that delays progress payments and frustrates builders.

Not Providing Evidence of Genuine Savings for Land and Construction Packages

If you're borrowing for a land and construction package, lenders assess both the land purchase and the construction loan application as a single transaction. They require evidence of genuine savings, particularly if you're borrowing above 80% of the total project value.

Genuine savings means money you've accumulated over at least three months in your own accounts. It does not include gifts, one-off windfalls, or money transferred in the week before you apply. For a land and build loan with a deposit under 20%, expect to show at least 5% of the total project value in genuine savings, plus funds to cover the Progressive Drawing Fee, legal costs, and insurance.

One client applied for a house and land package with a total value just under $900,000. They had 10% in cash but half of it came from a family gift deposited two weeks earlier. The lender required them to demonstrate genuine savings for the full 5%, which they couldn't do. The application was declined, and they had to wait another two months to reapply once the funds had seasoned.

Failing to Disclose Owner Builder Arrangements

If you plan to act as an owner builder, even partially, most lenders either decline the application or apply much stricter criteria. Owner builder finance is available, but only through specific lenders and usually at a higher construction loan interest rate.

The issue is not just the risk of cost blowouts. Lenders also worry about delays, quality, and the difficulty of conducting a progress inspection when there's no registered builder to hold accountable. If you're managing the build and engaging sub-contractors directly, you need to disclose that upfront and apply with a lender who accepts owner builder construction funding.

Some clients try to submit a standard application with a building contract that's deliberately vague about who's managing the works. When the lender digs deeper or sends a valuer to site, the arrangement becomes clear and the loan gets pulled. Disclose the structure at the start and avoid wasted time and application fees.

Leaving Out Insurance and Builder Registration Details

Lenders require proof that your builder holds current registration and appropriate insurance before they release the first drawdown. In Victoria, that means Home Warranty Insurance. In other states, it might be called something different, but the principle is the same: the lender wants protection if the builder goes broke or disappears mid-project.

You also need building insurance from the day you settle on the land or start construction, whichever comes first. Some lenders arrange this as part of the loan package. Others require you to organise it independently and provide proof before settlement. Either way, it's a condition of the loan, and without it, funds don't get released.

A client once delayed their first drawdown by three weeks because they assumed the builder's insurance covered the project. It didn't. The builder's policy covered public liability and their own equipment, but the client was responsible for insuring the structure itself. They had to arrange a policy retrospectively and submit evidence to the lender before the first progress payment could go through.

Assuming You Can Start Building Immediately After Settlement

Most construction loan approvals require you to commence building within a set period from the Disclosure Date, typically six to twelve months. If you settle on the land but don't start construction within that window, the loan approval can lapse and you'll need to reapply.

That reapplication is not automatic. The lender reassesses your income, expenses, and borrowing capacity. If your circumstances have changed, or if the property market has shifted, you might not get approved again under the same terms. The interest-only repayment options you were offered originally might no longer be available.

One scenario involved a client who settled on land in late winter, planning to start in spring. The builder was delayed waiting on council to approve a minor amendment to the plans. By the time they were ready, nine months had passed and the lender's approval had expired. The client had also changed jobs, which meant their income documentation no longer matched the original application. They had to reapply, provide new payslips, and accept a slightly higher construction loan interest rate because market conditions had shifted.

If you're applying for construction finance, make certain your builder can commence within the lender's timeframe and that all approvals are locked in before you settle on the land. Holding costs on an empty block with no build underway can run into thousands of dollars a month.

Getting construction loan documentation right the first time means you can focus on the build, not on scrambling to satisfy lender requests three months into the process. Call one of our team or book an appointment at a time that works for you.

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