Top Tips to Fund Your Building Project in Randwick

Banks want you to believe construction finance is complicated because it keeps you reliant on their processes and timeline.

Construction loans release funds in stages as your build progresses, which means you only pay interest on what's been drawn down rather than the full loan amount from day one. You'll need council approval, a fixed price building contract with a registered builder, and enough equity or deposit to satisfy the lender's security requirements. The structure protects both you and the lender, but the real advantage is control over how and when your money gets released during the build.

How Construction Funding Differs from a Standard Home Loan

A construction loan releases funds in instalments tied to specific milestones in your build, not as a lump sum upfront. You pay interest only on the amount drawn down at each stage, which keeps costs lower during the build phase. Once construction completes, the loan typically converts to a standard principal and interest home loan without needing to reapply.

Consider a Randwick buyer knocking down an older cottage on Coogee Bay Road to build a dual-level family home. With a land value around the current median and a $600,000 build cost, the lender releases funds across five or six stages: slab, frame, lockup, fixing, and completion. At the slab stage, only around $120,000 has been drawn, so interest charges apply to that portion, not the full $600,000. By lockup, perhaps $360,000 is drawn. The difference in interest costs compared to drawing the full amount upfront can be several thousand dollars over a six to nine-month build.

Most lenders also charge a Progressive Drawing Fee each time funds are released, typically between $200 and $400 per drawdown. Some banks bundle this into the loan, others charge it separately. Factor this into your budget because six drawdowns mean up to $2,400 in admin fees that aren't part of the build contract.

What You Need Before Applying for Building Project Funding

Lenders require a fixed price building contract with a registered builder, council approval or a development application lodged, and evidence that you can service the loan once construction completes. You'll also need to demonstrate you have enough equity in the land or a sufficient deposit if buying land and building together.

For Randwick projects, council approval through Randwick City Council can take anywhere from a few weeks for complying development to several months for more complex DAs. Lenders won't release the first drawdown until you have approval and proof that the contract is unconditional. If you're using a guarantor loan to cover deposit shortfalls, the guarantor's property also needs to be valued and approved before settlement.

Most banks will lend up to 80% of the combined land and construction value without requiring lenders mortgage insurance, though this varies depending on whether you already own the land or are purchasing it as part of a land and build package. If you're an owner builder, expect much tighter lending criteria. Many major banks won't touch owner builder finance at all, and the specialist lenders who do typically cap the loan at 60% to 70% of the project value.

The Progress Payment Schedule and How Drawdowns Work

Your builder provides a progress payment schedule that outlines what percentage of the contract price is due at each stage. The lender's construction draw schedule must align with this, but they won't release funds until a progress inspection confirms the stage is complete.

In practice, your builder invoices you for a stage, you submit a drawdown request to the lender, the lender arranges an inspection, and once approved, the funds are released directly to the builder or into your account depending on the lender's process. The delay between invoice and payment can be one to two weeks, which is why your building contract needs to account for reasonable payment terms. Some builders want payment within five business days of invoice. That timeline doesn't work with most lenders' inspection and drawdown processes, so negotiate terms that allow 10 to 14 days.

If you're doing a knockdown rebuild near Randwick's cafe strip or in the heritage conservation areas closer to Coogee, expect council to require more detailed plans and possibly stricter build timelines. Some lenders require you to commence building within a set period from the Disclosure Date, often six to twelve months. If council delays push you past that window, you may need to reapply or get an extension, which can mean updated valuations and fresh serviceability checks.

Cost Plus Contracts and Why Most Lenders Won't Touch Them

A cost plus contract means the builder charges you for actual costs incurred plus a margin, rather than a fixed price agreed upfront. Lenders hate this structure because there's no certainty on the final loan amount, which makes it nearly impossible for them to assess serviceability and security.

If your builder is pushing a cost plus arrangement, you'll struggle to get finance unless you have significant equity and can absorb cost variations without needing to increase the loan. The safer path is a fixed price building contract, which locks in the total cost and gives the lender the certainty they need to approve the loan. For custom builds in Randwick where design changes are common, work with a builder who offers provisional sums for items like kitchen fit-outs or landscaping, rather than leaving the whole contract open-ended.

Interest Costs During Construction and How to Manage Them

You'll make interest-only repayments during the build based on the amount drawn down at each stage. As more funds are released, your monthly interest payment increases. Once construction completes and the loan converts to a standard home loan, you switch to principal and interest repayments unless you negotiate otherwise.

Some lenders let you capitalise the interest during construction, meaning they add it to the loan balance rather than requiring monthly payments. This can help with cash flow if you're also paying rent or a mortgage on your existing property, but it increases the total loan amount and the interest you'll pay over the life of the loan. If you're planning to sell your current home to fund part of the build, a bridging loan may be necessary to cover the gap between when construction starts and when your sale settles.

Renovation Finance Versus New Build Construction Loans

Renovation loans and construction loans operate on similar principles, but lenders treat them differently depending on the scope of work. A full knockdown rebuild is a construction loan. A major renovation that increases the property's value significantly might qualify for a construction-style loan with progress payments, or it might be funded as a lump sum depending on the lender.

For older homes in Randwick, particularly those near the Royal Randwick Racecourse or along Avoca Street, renovations often involve structural work, extensions, and updates to bring the property up to modern standards. If the work is staged and requires multiple tradespeople over several months, a progress payment structure makes sense. If it's a contained project with a single contractor completing the work in six to eight weeks, a lump sum advance is simpler and avoids multiple drawdown fees.

How to Avoid the Most Common Construction Loan Traps

The biggest traps are underestimating costs, running out of contingency, and not accounting for the time it takes to release funds at each stage. Build quotes are often tighter than final costs once you factor in site-specific issues, upgrades during construction, and variations requested by council or discovered during the build.

Always include a contingency buffer, typically 10% to 15% of the build cost, and make sure your lender knows about it upfront. If your loan is approved based on a $500,000 contract and you need an extra $50,000 halfway through, most lenders won't increase the loan without a full reassessment. If your circumstances have changed or property values have dropped, that reassessment might not go your way.

The other trap is builders who front-load their payment schedule, asking for a higher percentage upfront and at early stages than the work justifies. Lenders typically release funds based on the value of work completed, not the percentage the builder invoices. If there's a mismatch, you'll need to cover the gap from your own funds or negotiate a revised schedule with the builder.

Finding a Lender That Actually Understands Building Projects

Not all lenders offer construction finance, and those that do vary wildly in how they assess projects, how long drawdowns take, and what fees they charge. The major banks all have construction loan products, but their appetite for projects involving owner builders, unique designs, or dual occupancy builds differs.

Some smaller lenders and credit unions are more flexible on things like contract variations, extended build timelines, and non-standard security. Others are faster on drawdown approvals, which matters when your builder is waiting on payment to book subcontractors. Working with a mortgage broker in Randwick who knows which lenders suit which projects saves time and avoids the frustration of applying to a lender who'll decline based on criteria you didn't know existed.

Call one of our team or book an appointment at a time that works for you. We'll walk through your build plans, work out what lenders will actually approve, and structure the loan so you're not scrambling for extra funds halfway through construction.

Frequently Asked Questions