Unlock the secrets to Multi-Unit Development Site Finance

Purchasing a multi-unit development site requires funding that works differently to a standard home loan.

You're not just buying land. You're acquiring a site with development potential, and lenders treat this as a commercial-style transaction even when the loan sits in your personal name. The structure you need is a construction loan that covers the land purchase and then releases funds progressively as the build advances. Most lenders across Australia require a deposit of at least 30% for development sites, though some will consider 20% if you're building three units or fewer and one will be owner-occupied. The application process involves council approval, builder contracts, and cost breakdowns before a lender will commit.

How Development Site Finance Differs from Standard Construction Loans

A multi-unit development loan combines land acquisition and construction funding, but lenders assess it based on the end value of all units combined, not just the land price.

Consider a self-employed buyer purchasing a dual-occupancy site in Paddington at the current median land price for development-approved blocks. They plan to build two three-bedroom terraces. The lender values the deal based on the combined worth of both completed homes, minus a discount for presale risk. If the buyer intends to keep one and sell the other, the lender wants to see a clear exit strategy, usually a presale contract or evidence of demand in that price bracket. The loan itself is split into two stages: the land purchase, which settles like any other property transaction, and the construction loan component, which disburses in stages as the builder completes each phase. Interest during construction is typically capitalised or paid from your own funds, depending on the lender's policy.

You'll also face higher serviceability requirements. Lenders calculate repayments based on the full loan amount at a higher assessment rate, even though you're only drawing down progressively. If you're self-employed, they'll want two years of financials and evidence that your income can support the debt once construction finishes.

The Role of Development Approval and Council Plans

Lenders won't proceed without council approval in place at the time of application.

Development applications in Paddington and Woollahra Council areas can take several months, and conditions often include heritage overlays, streetscape compliance, and parking requirements. The lender needs to see the approved plans, the conditions of consent, and confirmation that no appeals are pending. If the approval is conditional, you'll need to satisfy those conditions before the construction component activates. Some lenders will settle the land purchase with approval in place and hold off on construction funding until you've met conditions like arborist reports or materials specifications. Others require everything finalised upfront. The timeline matters because most construction loans require you to commence building within a set period from the Disclosure Date, usually six to twelve months. If you're delayed beyond that window, the lender may reassess or withdraw the construction facility.

Council plans also determine the loan amount. The lender's valuer reviews the approved design, the builder's quote, and the site itself to estimate the end value. If the valuer thinks the design won't achieve the projected sales prices, the loan amount drops. In areas like Paddington, where terrace-style developments are common, the valuer will compare your proposed units to recent sales of similar new builds in the immediate vicinity.

Fixed Price Building Contracts and Progress Payment Schedules

Most lenders require a fixed price building contract with a registered builder before approving construction funding.

The contract locks in the build cost and sets out a progress payment schedule tied to specific milestones: slab down, frame up, lockup, fixing, and practical completion. Each stage triggers a drawdown from the lender once a progress inspection confirms the work is complete. The builder invoices you, the lender's valuer or project manager inspects the site, and the lender releases funds directly to the builder. This is called progressive drawdown, and it protects both you and the lender from cost blowouts or incomplete work. Some lenders charge a progressive drawing fee each time they release funds, typically a few hundred dollars per draw. Others charge a single upfront fee to cover all inspections. You'll also pay interest only on the amount drawn down, not the full loan balance, which keeps repayments lower during construction.

If you're using a cost-plus contract instead of a fixed price arrangement, fewer lenders will participate. Cost-plus contracts pass cost variations to you, which increases risk for the lender. They may cap the loan at a lower percentage of the project value or require a larger cash buffer to cover overruns.

Serviceability for Self-Employed Borrowers on Development Finance

Lenders assess serviceability for multi-unit construction loans differently depending on whether you're keeping all units, selling all units, or keeping one and selling the rest.

If you plan to sell both completed units and repay the loan in full, the lender focuses on whether you can service interest during construction and whether the end value covers the debt. If you're keeping one unit as your home and selling the other, they'll assess your ability to service the remaining loan after the sale, using your current income and the reduced loan balance. For self-employed borrowers, this means providing tax returns, business financials, and often a letter from your accountant confirming ongoing income. In our experience, borrowers in professional services or trades with steady contract work tend to clear serviceability as long as the numbers stack up. The challenge arises when income is variable or the development timeline stretches beyond twelve months, as lenders become cautious about your capacity to fund interest payments and holding costs during construction.

If you're working with a Paddington mortgage broker, they'll model different scenarios before you sign the builder contract. That includes estimating interest costs, comparing lenders' progressive draw policies, and checking whether your income structure suits a particular lender's credit policy. Some lenders are more flexible with self-employed borrowers on development loans, especially if you've built before or have a strong deposit position.

Interest-Only Repayment Options During Construction

Most construction loans offer interest-only repayment options during the build, with the option to switch to principal and interest once construction completes.

You only pay interest on funds drawn down, so repayments increase as the build progresses and more money is released. Some borrowers prefer to capitalise interest during construction, meaning the lender adds it to the loan balance rather than requiring monthly payments. This approach works if you're selling both units on completion and repaying the full loan from sale proceeds. If you're keeping one unit, capitalising interest increases the final debt, which affects serviceability when the lender recalculates repayments post-construction. The construction loan interest rate is usually higher than a standard variable home loan rate, often by 0.5% to 1%, reflecting the higher risk the lender takes on an incomplete asset. Once the build finishes and you have an occupancy certificate, the loan converts to a standard investment loan or owner-occupied loan, depending on your intention, and the rate typically drops.

Some lenders allow you to make additional payments during construction without penalty, which can reduce the balance before conversion and lower ongoing repayments. Others have strict terms during the construction phase and only allow extra repayments once the loan converts.

How Access to Lenders Affects Your Options

Not all lenders offer multi-unit development finance, and those that do have different appetite depending on the number of units, the location, and your experience.

Working with a broker who can access construction loan options from banks and lenders across Australia increases your chances of securing funding on terms that suit your situation. Some lenders cap development loans at two units. Others will fund up to four units under residential lending policies. Beyond that, you're typically into commercial finance, which has different deposit requirements and serviceability tests. In Paddington, where dual-occupancy and three-unit developments are common, most mainstream lenders will participate if the site is well-located and the design aligns with local demand. If the site is more complex, such as a battle-axe block or a site with access constraints, the pool of willing lenders shrinks. A broker familiar with the area and the lender panel can steer you to the right funder without wasting time on applications that won't proceed.

You'll also want to compare progressive draw policies. Some lenders inspect every stage and release funds within a few days. Others use third-party project managers, which can delay drawdowns and frustrate builders. The wrong lender can add weeks to your build timeline, so choosing one with a clear process matters as much as the rate.

If you're purchasing a development site in Paddington or nearby and need construction finance structured around your circumstances, call one of our team or book an appointment at a time that works for you. We'll model the funding, compare lenders, and make sure the structure fits both the build and your plans for the finished units.

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