How to Finance a Multi-Unit Development Site

Purchasing a multi-unit development site requires a financing approach that differs from standard residential lending.

Lenders assess these transactions based on feasibility, not just serviceability. The approval process examines your development application, projected end values, and your capacity to manage the build, not simply your income and deposit. Understanding how construction finance is structured for multi-unit sites helps you position your application correctly from the outset.

What Lenders Assess When Financing a Multi-Unit Site Purchase

Lenders evaluate your development proposal based on the viability of the project and your experience as a developer. They examine council approval status, projected construction costs, anticipated sale or rental values, and your equity contribution. Most specialist lenders require a minimum 30% deposit, though this can vary depending on whether you intend to sell off the plan or retain the units as investments. Your borrowing capacity is determined by the loan-to-value ratio and the feasibility study, which includes a quantity surveyor's report and often a pre-sales requirement if you plan to sell.

Consider a developer purchasing a 1,200-square-metre block in Toongabbie zoned for low-rise residential. The site sits within walking distance of Toongabbie Station and is approved for six townhouses. The lender required a detailed development application with council approval, a fixed price building contract, and evidence of pre-sales for at least 50% of the units before releasing construction funds. The developer's equity covered the land purchase and initial holding costs, while construction finance was structured to release progressively as each stage reached practical completion.

How Construction Funding Is Released on Multi-Unit Projects

Construction funding for multi-unit developments is released according to a progress payment schedule, not in a lump sum. The lender appoints a quantity surveyor to inspect the site at key milestones and approve each drawdown. Typical stages include slab down, frame up, lock-up, fixing, and practical completion. Each release corresponds to a percentage of the total loan amount and is only drawn down once the builder submits invoices and the inspection confirms the work is complete.

This staged approach means you only pay interest on the amount drawn down at each point in the build. During construction, most lenders offer interest-only repayment options, which reduces cash flow pressure while the project generates no income. Once the development is complete and units are either sold or tenanted, you can refinance into a standard investment or commercial loan structure, depending on your exit strategy.

Fixed Price Contracts and Cost-Plus Arrangements

Most lenders prefer a fixed price building contract because it provides certainty around the final construction cost. Under this structure, the builder agrees to complete the project for a set sum, and any cost overruns become the builder's responsibility. This reduces risk for the lender and simplifies the progress payment schedule, as each drawdown is calculated as a percentage of the agreed contract price.

A cost-plus contract, where you pay the builder's actual costs plus a margin, offers more flexibility but introduces uncertainty. Lenders typically require a larger contingency buffer and may cap the loan amount at a lower loan-to-value ratio if the contract is not fixed. If you plan to act as an owner builder, expect stricter conditions. Most lenders will require evidence of prior construction experience, a detailed project plan, and a higher equity contribution, often 40% or more.

The Role of Council Approval and Development Application Status

Your development application status directly affects how lenders structure the loan. If the site already has development approval, you can proceed to a construction loan application immediately. If you are purchasing the land with approval pending, lenders may offer land acquisition finance with a condition that construction funding is only released once council approval is finalised.

In Toongabbie, where much of the housing stock comprises older brick homes on larger blocks, there is growing interest in knock-down-rebuild projects and small-scale multi-unit developments. The local council has been receptive to medium-density proposals that align with the precinct's character, particularly near transport corridors. Securing council plans early in the process reduces financing risk and shortens the time between land settlement and construction commencement. Many lenders require you to commence building within a set period from the disclosure date, typically six to twelve months, to avoid revaluation or reassessment of the loan.

Managing Interest Costs and Cash Flow During Construction

Because you only draw down funds as construction progresses, your interest costs remain lower than if you borrowed the full amount upfront. During the construction phase, you make interest-only payments on the drawn portion, which allows you to preserve capital for other project costs such as council fees, insurance, and marketing.

Some developers use a land and construction package to streamline the process, where the lender finances both the site acquisition and the build under a single facility. This approach can simplify the application process and reduce the number of settlement events, though it requires the development application to be well advanced before the lender will commit. If you are purchasing a development site with existing tenants or structures, factor in holding costs and demolition expenses when calculating your total funding requirement.

Choosing Between Registered Builders and Owner Builder Arrangements

Using a registered builder is the standard requirement for most lenders offering construction finance. The builder must hold appropriate licenses, insurance, and provide a fixed price contract that covers all trade work including plumbers, electricians, and other sub-contractors. The lender's quantity surveyor will inspect the site at each milestone and liaise directly with the builder to verify progress before approving each drawdown.

If you choose to act as an owner builder, you take on the role of project manager and directly pay sub-contractors as each stage is completed. This can reduce costs but increases complexity and risk. Lenders offering owner builder finance typically require a higher deposit, evidence of construction experience, and a more detailed project plan. You will also need to provide invoices from each trade at every drawdown stage, which adds administrative effort compared to a single contract with a registered builder.

Exit Strategy and Refinancing After Completion

Your exit strategy should be defined before you apply for construction finance. If you intend to sell the units off the plan or upon completion, the lender will assess your ability to repay the loan from sale proceeds. Most lenders require a minimum number of pre-sales, typically 50% to 70%, before releasing the final construction drawdown.

If you plan to retain the units as investment properties, you will need to refinance into a long-term loan once construction is complete and the units are tenanted. The refinance is based on the completed value of the development, not the construction cost, which means you may be able to access additional equity if the project delivers a strong margin. Lenders will assess rental income, occupancy rates, and your overall serviceability before approving the refinance.

Call one of our team or book an appointment at a time that works for you to discuss how construction finance can be structured for your multi-unit development in Toongabbie.

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