Knockdown Rebuilds: What Not to Skip in Your Finance

The Core Difference Between Standard Construction Finance and Knockdown Rebuild Funding

A knockdown rebuild construction loan releases funds in stages tied to building milestones, not as a single upfront sum. You'll pay interest only on what's been drawn down at each stage, which matters when demolition, site preparation, and slab work can stretch across several months before the structure begins to take shape.

Consider a buyer who owns a post-war cottage in Balmoral, valued after demolition as land only. They're building a two-storey home with a fixed price building contract. The lender funds the demolition first, then the slab, frame, lock-up, fixing stage, and practical completion. Each release depends on a progress inspection confirming work has been completed to that point. Between drawdowns, the buyer pays interest only on the funds already released. If the slab draw is delayed by two months due to wet weather, those two months cost interest on the demolition amount only, not the full loan.

This phased approach keeps your repayments lower during the build, but it also means your cashflow needs to flex around the construction draw schedule. If your builder invoices before the lender releases funds, you'll need access to a buffer or redraw facility to cover the gap.

How Council Approval Timing Affects Your Loan Start Date

Most lenders require council approval and a registered builder before they'll issue formal loan approval. Some will give conditional approval earlier, but the clock on your loan term doesn't start until settlement or first drawdown, whichever comes first.

In Balmoral, development applications for knockdown rebuilds are assessed by Brisbane City Council. DA timelines vary, but assume eight to twelve weeks from lodgement to decision if the design complies with the local neighbourhood plan. If your design triggers impact assessment, the timeline extends. Lenders won't hold an interest rate for that entire period unless you lock it in separately, which usually costs a fee and applies only to fixed rate portions of the loan.

Once the DA is approved and your builder is ready to commence, the lender will settle the land component if you're purchasing, or revalue your existing property if you already own it. Demolition funding typically releases within a week of settlement, assuming the contract and insurance are in place. From that point, you'll start paying interest on the amount drawn down, even though construction hasn't formally begun.

Progress Payment Finance: What Happens If Draws Don't Match Invoices

Progress payments under a fixed price building contract are usually structured as a percentage of the total contract price at each stage. Your lender's progressive drawdown schedule may not align exactly with those percentages.

Some lenders use a fixed stage model: 5% for slab, 15% for frame, 35% for lock-up, 30% for fixing, 15% for practical completion. Others calculate draws based on a cost plus contract or a progress payment schedule submitted by the builder. If your builder invoices for 20% at frame stage but the lender's policy caps that draw at 15%, you'll need to cover the shortfall until the next stage triggers.

In our experience with knockdown rebuilds in bayside suburbs, this mismatch most often surfaces at the fixing stage, where internal fitout costs can run higher than the lender's standard allocation if you've upgraded flooring, joinery, or appliances. The solution is either a redraw facility on your existing loan, a separate line of credit, or retained savings. Some lenders allow a small buffer within the total loan amount to accommodate variations, but that needs to be structured before the loan settles.

What a Progressive Drawing Fee Costs and When It Applies

A Progressive Drawing Fee is charged by the lender each time they release funds and arrange a progress inspection. The fee typically ranges from $300 to $500 per draw, depending on the lender and whether they use an external valuer or in-house inspector.

Across a five-stage drawdown, expect total inspection fees between $1,500 and $2,500. Some lenders cap the number of draws included in the loan and charge extra if the build requires additional inspections. Others bundle a set number of draws into the loan and don't charge separately. This detail sits in the loan's terms and conditions, not the product disclosure, so it's worth checking before you commit.

These fees are usually deducted from each drawdown rather than paid upfront, which means they don't hit your savings but they do reduce the amount released to the builder. If the frame stage is set at $80,000 and the inspection fee is $400, the builder receives $79,600. Make sure your builder knows this in advance so the invoice matches the net amount.

Interest-Only Repayment Options During and After Construction

Construction loans default to interest-only repayments during the build, calculated daily on the drawn balance and charged monthly. Once the build reaches practical completion and the final draw is released, the loan converts to principal and interest unless you've arranged to extend the interest-only period.

Some lenders offer interest-only periods of up to five years from settlement, which can include the construction phase plus several years post-completion. Others limit interest-only to the build period only, typically twelve months, after which repayments switch to principal and interest automatically. If your income is variable or you're holding onto another property during the build, extending interest-only post-completion can keep your repayments lower while you settle into the new home.

The construction loan interest rate during the build is usually variable, even if you plan to fix part of the loan once construction finishes. Fixing during construction isn't common because the drawn balance changes monthly, making it difficult to calculate repayments. Once the loan converts to a standard home loan structure post-completion, you can split it into fixed and variable portions if that suits your situation.

Commence Building Clauses and What Happens If You Delay

Most construction loan approvals require you to commence building within a set period from the disclosure date, usually six to twelve months. If demolition or site work hasn't started within that window, the lender can withdraw the approval or reassess your financial position.

This clause exists because your income, employment, or the property market may have shifted since the original assessment. If you're waiting on a tenant to vacate before demolition, or the builder has pushed the start date due to material delays, let the lender know before the commence building deadline passes. Most will extend the period if the delay is documented and your circumstances haven't changed, but they're not obliged to.

In Balmoral, where older homes on larger blocks are often tenanted right up until settlement, coordinating the lease end date with the builder's start date and the lender's timeline requires some planning. If the tenant holds over and demolition is delayed by two months, you'll need the lender's agreement to push the first draw without triggering a reassessment.

How Lenders Assess Land Value After Knockdown for Loan Security

When you're knocking down an existing home, the lender revalues the property as vacant land once demolition is complete. That revaluation determines the initial loan-to-value ratio, which affects whether you'll pay lenders mortgage insurance and how much equity you're starting with.

If you purchased the property as a renovator for its land value, the post-knockdown valuation should be close to what you paid. If you've owned the block for years and the home had residual value, the land-only valuation may come in lower than the pre-demolition figure, particularly if the previous dwelling was liveable and contributing to the overall value. A lower valuation can push your LVR higher, which may trigger LMI or reduce the amount the lender is willing to release.

Balmoral's proximity to the bay and Moreton Island views from elevated blocks means land values hold firm, but the lender will still assess the site based on comparable vacant land sales in the area. If your block is steep, has easements, or requires retaining walls, the valuer will factor those costs into the land's value, which can affect how much the lender will advance for construction.

Call one of our team or book an appointment at a time that works for you to review how the land valuation aligns with your building contract before the loan is finalised.

Frequently Asked Questions