Purchasing a multi-unit development site requires a different financing approach than buying land for a single dwelling. Lenders assess these projects based on your development experience, the site's potential, and whether council approval is already in place or still required.
Construction Finance for Development Sites: How It Differs
Construction finance for multi-unit projects operates through a progressive drawdown system where funds are released in stages as the build progresses. Unlike a standard home loan where the full amount settles at purchase, development finance typically covers land acquisition first, then releases construction funding according to a progress payment schedule tied to specific building milestones.
In Blackburn, where blocks suitable for townhouse or dual-occupancy development often sit on elevated terrain near Gardiners Creek or along the railway corridor, lenders want to see that the site has genuine development potential. A development application already approved by Whitehorse City Council strengthens your position significantly. Without approval, most lenders will require evidence that the proposed development aligns with local zoning and that you have engaged a town planner familiar with the area's subdivision patterns.
Consider a scenario where a buyer identifies a 700-square-metre site in central Blackburn zoned for multi-dwelling development. The land component might represent the first drawdown, with subsequent releases covering site works, foundation and frame stages, lock-up, fixing, and practical completion. The lender will only charge interest on the amount drawn down at each stage, which helps manage cash flow during construction.
What Lenders Assess Before Approving Development Finance
Lenders evaluate your development experience, the project's feasibility, and whether you are using a registered builder under a fixed price building contract. If you have not completed a development project before, expect lenders to require more substantial equity or a pre-sale contract for at least one of the proposed units.
The loan amount is determined by both the land value and the total construction cost, with most lenders capping their loan-to-value ratio between 70% and 80% for development projects. This means you will need to contribute the remaining 20% to 30% as equity, which can include cash, existing property equity, or a combination of both. Lenders also assess the end value of the completed units, so providing a valuation from a qualified property valuer experienced in the Blackburn market is often required during the application process.
If you are acting as an owner builder rather than engaging a registered builder, your financing options narrow considerably. Most mainstream lenders will not provide construction loans for owner-builder projects on multi-unit sites due to the increased risk and project management complexity. Specialist lenders may consider these applications, but expect higher interest rates and lower loan-to-value ratios.
How the Progressive Drawdown Process Works
Funds are released according to a progress payment schedule that aligns with your building contract. A typical schedule includes five to six stages: base stage at land settlement, slab or frame completion, lock-up, fixing, practical completion, and final completion after any defect rectification period.
Before each drawdown, the lender arranges a progress inspection to confirm that the work has been completed to the required standard. Once the inspection is approved, the lender releases the funds directly to the builder or, in some cases, to you if you are managing payments to sub-contractors such as plumbers and electricians under a cost plus contract arrangement.
Most lenders charge a Progressive Drawing Fee for each inspection and drawdown, which typically ranges from $300 to $500 per stage. This fee covers the cost of the valuer or building inspector who assesses the work. These fees are usually deducted from the drawdown amount rather than paid upfront, but it is worth clarifying this with your lender during the construction loan application.
Interest-only repayment options are standard during the construction phase, allowing you to pay only the interest accrued on the drawn amount rather than principal and interest. This keeps your repayments lower while the project is underway and you are not yet generating rental income or sale proceeds from the completed units.
Fixed Price Contracts and Why They Matter to Lenders
Lenders strongly prefer fixed price building contracts because they provide certainty around the total project cost. Under a fixed price contract, the builder agrees to complete the construction for a specified amount, regardless of cost variations during the build. This protects both you and the lender from budget blowouts that could jeopardise the project.
If your builder proposes a cost plus contract, where you pay the actual construction costs plus a margin, you will need to demonstrate a larger cash buffer to cover potential overruns. Some lenders will not provide construction funding under cost plus arrangements for multi-unit developments unless you have significant experience and additional equity.
Your building contract should also specify that you must commence building within a set period from the disclosure date. Lenders include this condition to reduce the risk that land sits undeveloped for an extended period, which could affect valuations and project viability. In practice, most contracts require construction to start within six to twelve months of land settlement.
Planning Requirements Specific to Blackburn
Whitehorse City Council has specific overlays and planning controls that affect multi-unit developments in Blackburn, particularly around neighbourhood character and vegetation protection. Sites near the Blackburn Lake Sanctuary or within heritage precincts may require additional planning considerations that extend the development application timeline.
Before committing to a purchase, confirm that the site allows for the number of units you are planning and that any significant vegetation can be managed within the council's requirements. A town planner who has worked on recent projects in Blackburn will be familiar with these local nuances and can advise whether your proposed development is likely to gain council approval without significant modifications.
Lenders will want to see council plans as part of your application, particularly if approval has not yet been granted. If you are purchasing the land subject to obtaining a planning permit, structure the contract with a suitable cooling-off or approval period so you are not financially committed before knowing whether the development is viable.
How Equity in Existing Property Can Fund Your Deposit
If you own a home in Blackburn or elsewhere in Melbourne, the equity in that property can be used to fund the deposit and settlement costs for the development site. This approach avoids the need to sell your existing property or draw down significant cash savings.
Lenders will assess the combined loan-to-value ratio across both your existing home and the new development site. For example, if your home is valued well above your current mortgage, the available equity can be accessed through a refinancing arrangement or a separate investment loan secured against both properties. This structure allows you to retain your existing home while funding the development, with the intention of either selling the completed units or holding them as rental investments.
Your mortgage broker can model different equity release scenarios to show how much you can access without exceeding the lender's maximum loan-to-value ratio. Most lenders cap total borrowing at 80% across the combined security, though some will go higher if you pay lenders mortgage insurance.
Managing Cash Flow During the Build
Because construction finance is drawn progressively, your repayments start low and increase as more funds are released. This staged approach helps manage cash flow, but you still need to budget for interim costs such as council rates on the land, building insurance, and any holding costs if the project takes longer than expected.
If you are developing units for sale rather than retention, factor in the time between practical completion and settlement with buyers. During this period, you will be paying interest on the full drawn amount without sale proceeds to offset it. Pre-selling one or more units can reduce this exposure and may also improve your borrowing capacity by demonstrating end-buyer demand.
Some developers use a land and construction package structure where the land and build are financed together from the outset, while others prefer to purchase the land first and arrange construction funding separately once council approval is secured. The right structure depends on your timeline, equity position, and whether you have identified a builder before purchasing the site.
When to Engage a Mortgage Broker for Development Finance
Development finance involves more variables than a standard home loan, including builder assessments, valuation requirements, and lender appetite for multi-unit projects in specific locations. A mortgage broker with experience in construction funding can identify which lenders are actively supporting developments in Blackburn and structure your application to address their specific criteria.
Brokers also have access to construction loan options from banks and lenders across Australia, including smaller lenders who may offer more flexibility on loan-to-value ratios or accept alternative income verification if you are self-employed or transitioning between projects. Preparing a comprehensive application upfront, including detailed costings, builder credentials, and council documentation, speeds up the approval process and reduces the likelihood of unexpected conditions.
If your project involves a dual-occupancy or townhouse development that will be retained as rental properties rather than sold, your broker can structure the loan to transition from construction funding to a standard investment loan once the build is complete, locking in a suitable interest rate and repayment structure for the long term.
Securing the right funding structure for a multi-unit development site in Blackburn depends on your experience, the site's development potential, and how well your application addresses lender risk criteria. Call one of our team or book an appointment at a time that works for you to discuss your project and identify the most suitable lenders for your development.
Frequently Asked Questions
How does construction finance differ from a standard home loan for multi-unit developments?
Construction finance for multi-unit projects uses a progressive drawdown system where funds are released in stages as the build progresses, rather than providing the full amount at settlement. Lenders only charge interest on the amount drawn down at each stage, and repayments start lower and increase as more funds are released.
What do lenders assess before approving finance for a development site in Blackburn?
Lenders evaluate your development experience, whether council approval is in place, the project's feasibility, and whether you are using a registered builder under a fixed price building contract. They also assess the site's end value and typically require 20% to 30% equity contribution.
Can I use equity in my existing home to fund a multi-unit development deposit?
Yes, equity in an existing property can be used to fund the deposit and settlement costs for a development site. Lenders assess the combined loan-to-value ratio across both properties, typically capping total borrowing at 80% of the combined security value.
Why do lenders prefer fixed price building contracts for development projects?
Fixed price contracts provide certainty around the total project cost, protecting both the borrower and lender from budget blowouts. Under a fixed price contract, the builder agrees to complete construction for a specified amount regardless of cost variations during the build.
What is a progressive drawdown and how does it work during construction?
A progressive drawdown releases funds in stages tied to specific building milestones such as slab, frame, lock-up, and practical completion. Before each drawdown, the lender arranges a progress inspection to confirm work completion, then releases funds directly to the builder or borrower.
