Smart ways to finance a multi-unit development site

Buying land to develop multiple units requires a different lending structure than a standard home loan or single-dwelling construction project.

Most lenders treat multi-unit development sites as specialised construction finance, which means your approval depends on the project's commercial viability rather than just your income. The funding releases in stages as construction progresses, and you'll typically need a larger deposit than you would for a standard home loan. If you're looking at a block in Mackay where you can split into two or three townhouses, the application process starts with the development application and council approval before any lender will commit.

What lenders assess before approving development finance

Lenders evaluate the completed project value, your construction experience, and whether the development stacks up financially. They'll want to see council plans showing the number of units, your fixed price building contract, and a quantity surveyor's report estimating end values. Most lenders will only fund up to 70% of the land purchase price and construction costs combined, which means you'll need at least 30% in cash or existing equity. Some lenders go higher if you've completed developments before, but that's less common in regional markets like Mackay.

Consider a buyer purchasing a 1,200-square-metre block near the Mackay CBD zoned for medium-density residential. The land costs $320,000, and the construction budget for three townhouses is $780,000, bringing the total project cost to $1,100,000. A lender agreeing to 70% loan-to-cost would provide $770,000, leaving the buyer to cover $330,000 from their own resources. The lender also requires a pre-sale or pre-commitment on at least one of the three units before they'll release the first drawdown, which adds another layer of timing to manage.

How the progressive drawdown works on multi-unit builds

Funding releases according to a progress payment schedule tied to construction milestones. Typical stages include base stage, frame stage, lock-up stage, fixing stage, and practical completion. The lender arranges a progress inspection before releasing each instalment, and you only pay interest on the amount drawn down so far. Most lenders charge a Progressive Drawing Fee each time funds are released, which usually sits between $300 and $500 per draw.

The builder invoices for each stage, you submit the invoice to the lender, and the lender's valuer confirms the work is complete before releasing the funds. On a multi-unit site, the progress payment schedule can become more complicated if you're building in stages rather than all at once. Some developers build one unit first, sell it, then use that equity to fund the next stage. That approach can work, but it requires careful timing and a lender willing to support staged settlement.

Fixed price contracts and cost-plus structures

Most lenders insist on a fixed price building contract for multi-unit developments, particularly if you haven't completed a project before. A fixed price contract sets the total construction cost upfront, which gives the lender certainty that the budget won't blow out halfway through. The builder carries the risk of cost overruns, and the progress payment schedule is clear from the start.

Cost-plus contracts, where you pay the builder's actual costs plus a margin, are harder to finance unless you're an experienced developer or owner builder. Lenders see them as higher risk because the final cost isn't locked in. If you're building in Mackay's northern beaches area where site conditions can vary, a fixed price contract also protects you from unexpected earthworks or drainage costs that weren't obvious when you bought the land.

Development application timing and settlement conditions

You'll usually need development application approval before a lender will issue formal approval for construction finance. Some lenders will give conditional approval based on a lodged DA, but they won't release funds until council approval comes through. If you're buying land subject to DA approval, make sure your contract allows enough time to lodge, wait for council, and satisfy the lender's conditions before settlement.

Mackay Regional Council's average DA processing time for multi-unit residential developments can stretch several months, depending on whether the application is code assessable or impact assessable. If your project requires impact assessment because it's outside the standard planning scheme, expect a longer approval window and potentially more conditions around landscaping, stormwater, and street frontage. Your settlement period needs to account for that, or you risk paying penalty interest if you can't settle on time.

Interest-only repayments during construction

Most construction loans offer interest-only repayment options during the build phase, which means you only pay interest on the drawn-down amount each month. Once construction finishes and the project reaches practical completion, the loan converts to principal-and-interest repayments, or you refinance based on the completed value.

If you're planning to sell the units on completion, you'll want to structure the loan so it remains interest-only until settlement. That keeps your holding costs lower while you're marketing the properties. If you're keeping one or more units as investment properties, you'll need to discuss with your broker whether the loan splits into separate facilities or converts into a standard investment loan structure after completion.

Owner builder finance and developer experience

If you're planning to build the units yourself as an owner builder, your finance options narrow significantly. Most mainstream lenders won't fund owner-builder projects on multi-unit sites unless you hold a builder's licence or have completed similar developments before. The lenders who do offer owner builder finance typically require a higher deposit, more detailed cost breakdowns, and evidence that you have the trade contacts and project management experience to deliver on time.

In our experience, buyers in Mackay who want to owner-build a duplex or triplex often underestimate how much documentation the lender requires. You'll need quotes from plumbers, electricians, and other sub-contractors, a line-by-line budget showing when each trade gets paid, and proof that you've arranged insurance and engaged a certifier. Even with all that in place, expect the loan amount to sit closer to 60% of costs rather than 70%.

Converting construction finance to a permanent loan

Once the units are complete, your construction loan either converts to a standard home loan or investment loan, or you refinance to a different lender. The conversion is sometimes called a construction-to-permanent loan, and it's usually smoother if you arrange it with the same lender from the start. The interest rate during construction is often higher than the standard variable rate, so the conversion typically brings your rate down and moves you onto principal-and-interest repayments.

If you're selling some or all of the units, you'll discharge the loan on settlement and keep any profit after repaying the lender and covering selling costs. If you're keeping the units, the lender will revalue the project based on completed values, and you may be able to access equity for your next development or pay down the loan depending on your goals.

Funding a multi-unit development in Mackay involves more moving parts than a standard construction project, but the structure is predictable once you understand how lenders assess the application and release funds. The earlier you involve a broker who works with development finance regularly, the fewer surprises you'll face between contract and settlement.

Call one of our team or book an appointment at a time that works for you to discuss how construction finance applies to your specific development and what lenders are currently offering for multi-unit projects in the Mackay area.

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