A construction loan for an investment property works differently to standard home finance. You borrow against what you're building, not what exists, and the lender releases funds in stages as construction progresses.
Bacchus Marsh continues to attract investors looking to build rather than buy established properties, particularly in growth corridors near the Avenue of Honour precinct and areas west of the town centre where land is still available at workable prices. The decision to build an investment property creates a different set of financing requirements compared to purchasing an established dwelling, and understanding how construction finance is structured will determine whether your project proceeds on budget or stalls mid-build.
How Construction Loans Differ from Standard Investment Finance
Construction finance for investment purposes is structured around a progressive drawdown system where the lender releases funds in stages as building work is completed. You only pay interest on the amount drawn down at each stage, not the full loan amount upfront. The lender typically requires a quantity surveyor or building inspector to verify that each stage of construction has been completed before releasing the next payment to your builder. This differs from a standard investment loan where the full amount is advanced at settlement and repayments begin immediately.
Most lenders will fund construction to around 90% of the property's projected value once completed, though some require a larger deposit for investment builds compared to owner-occupied projects. The loan amount is calculated on the combined cost of land plus construction, or on the end valuation, whichever is lower. If you already own the land, the lender will use its current market value as part of your equity position.
The Progress Payment Structure and What Triggers Each Draw
Lenders release funds according to a schedule that mirrors the building contract. A typical progress payment schedule includes five or six stages: base stage after slab is laid, frame stage once the structure is up, lockup stage when the roof and windows are complete, fixing stage when internal fit-out is done, and practical completion when the building is ready for handover.
Each stage requires an inspection before funds are released. The lender arranges this, and most charge a progressive drawing fee for each inspection, usually between $200 and $400 per drawdown. These fees are separate from your loan and paid upfront or added to the amount you're borrowing. The inspection confirms that the work matches the stage claimed by the builder, and once verified, the lender transfers the funds directly to the builder or into your nominated account depending on the contract type.
Consider an investor building a four-bedroom house on a land and construction package in the Darley growth area. The total project cost is land plus build, and the lender has agreed to fund 90% of the end valuation. The first drawdown covers the land purchase and initial slab stage. Each subsequent drawdown follows the completion of frame, lockup, fixing, and practical completion stages. Between drawdowns, the investor pays interest only on the amounts already released, which keeps holding costs lower during the construction period compared to paying interest on the full loan from day one.
Interest-Only Repayments During Construction and Why Timing Matters
During the construction period, most lenders automatically structure the loan as interest-only, and you're charged interest only on the progressive amounts drawn down. This period usually runs for 12 to 18 months depending on the build timeframe, though extensions can be arranged if construction is delayed. Once the building reaches practical completion, the loan converts to a standard investment loan structure, and you can choose to continue on interest-only or switch to principal and interest repayments.
The interest rate during construction is often slightly higher than a standard variable rate, though some lenders offer the same rate across both the construction and post-completion phases. Fixed rates are less common during the construction period because the loan balance is changing every few weeks as funds are drawn down, though you can lock in a rate once construction is finished and the loan converts to a standard mortgage.
Timing becomes important when you're holding another property or managing multiple loans. If you're building an investment property while living elsewhere, you'll need to service the interest on the construction loan alongside your existing commitments. Lenders assess your borrowing capacity based on the full loan amount even though you're only paying interest on the drawn portion initially, so your income needs to support the eventual total debt.
Fixed Price Contracts and Cost Plus Arrangements
A fixed price building contract provides certainty about the total build cost, and lenders prefer this structure because it limits the risk of cost overruns. The contract specifies the price, inclusions, and payment schedule, and the builder is responsible for delivering the project within that budget. Any variations you request will adjust the price, but the base contract remains fixed. This structure works well for project homes and volume builders operating in areas like Bacchus Marsh where they have established supplier relationships and predictable costs.
A cost plus contract, where you pay the builder's costs plus a margin, is less common for investment builds because the final cost is less certain. Lenders are cautious with cost plus arrangements and may require a larger deposit or cap the amount they'll fund. If you're building a custom design or using an owner builder arrangement, expect the lender to scrutinise the cost estimate and potentially lend a lower percentage of the projected valuation. Owner builder finance is available but typically limited to 80% of the end value because lenders view the project as higher risk without a registered builder managing the process.
Council Approval and the Requirement to Commence Building
Your construction loan approval is conditional on having council approval in place before the first drawdown. The lender will request a copy of your building permit and the council-approved plans as part of the final loan documentation. If these aren't ready when your loan is approved, the lender will issue conditional approval and wait for the permits before proceeding to settlement on the land or releasing the first construction drawdown.
Most lenders also include a condition that you must commence building within a set period from the loan's disclosure date, typically six to 12 months. If construction hasn't started within that window, the lender may reassess your application or withdraw the approval, particularly if interest rates or your financial circumstances have changed. This condition exists because the lender's valuation and risk assessment are based on completing the build within a reasonable timeframe, and delays can affect both the end value and your capacity to service the loan.
In a scenario where an investor has purchased land in Bacchus Marsh with plans to build a dual-occupancy development, the project requires a planning permit in addition to a building permit. The lender won't release funds until both permits are in hand, and if the planning approval is delayed beyond the loan's commencement deadline, the investor will need to reapply for finance. This is why having your development application lodged and preferably approved before seeking loan pre-approval reduces the chance of timing issues derailing the funding.
How Lenders Assess Investment Construction Loans Differently
Lenders assess construction finance for investment properties by calculating serviceability on the full loan amount, even though you'll only be paying interest on progressive drawdowns during the build. They use the projected rental income once the property is completed, but most will only count 80% of that income when determining how much you can borrow. Some lenders won't include any rental income until the property is finished and tenanted, which tightens your borrowing capacity further if you're relying on that income to service the loan.
Your deposit requirement may also be higher for an investment build compared to building your own home. Where an owner-occupied construction loan might proceed with a 10% deposit, lenders often require 15% to 20% for investment projects. This reflects the additional risk they associate with construction delays, market shifts during the build period, and the fact that the property won't generate income until it's completed and leased.
Another consideration is how the lender values the completed property. They'll order a valuation based on the plans and specifications, and that valuation determines the maximum loan amount. If the valuer's assessment comes in lower than your combined land and construction costs, you'll need to cover the difference with additional equity or a larger deposit. We regularly see this occur when investors overestimate the end value or underestimate the full cost of construction including site works, driveways, landscaping, and connection fees that aren't always included in the builder's base price.
Renovation Finance as an Alternative to New Construction
If your investment strategy involves purchasing an older property and renovating rather than building from scratch, the funding structure is different again. A renovation loan allows you to borrow against the improved value of the property, with funds released progressively as renovation work is completed. The process mirrors construction finance in that the lender will require progress inspections and release funds in stages, but the loan starts as a standard home loan with a renovation component built in.
Renovation finance can be particularly relevant in established parts of Bacchus Marsh where older homes closer to the town centre offer potential to add value through extensions or internal reconfiguration. The lender will assess the project based on plans, a builder's quote if you're using a registered builder, or a detailed scope of works if you're managing the renovation yourself. As with new construction, lenders prefer fixed price contracts and will typically lend more conservatively if the scope or costs are uncertain.
The decision between building new and renovating an existing property comes down to the numbers, the availability of suitable land, and how long you're prepared to wait before the property generates income. Both pathways require careful planning and a lender willing to fund the specific structure you're proposing.
Call one of our team or book an appointment at a time that works for you. We'll review your project, confirm what lenders will fund for investment construction in your situation, and make sure the loan structure matches the contract and build timeline you're working with.
Frequently Asked Questions
How do construction loans differ from standard investment loans?
Construction loans release funds in stages as building work progresses, and you only pay interest on the amount drawn down at each stage rather than the full loan amount upfront. Standard investment loans advance the full amount at settlement with repayments beginning immediately.
What deposit do I need for an investment property construction loan?
Most lenders require 15% to 20% deposit for investment construction projects, which is higher than owner-occupied builds. The loan amount is calculated on the lower of land plus construction costs or the end valuation.
Can I use rental income to qualify for a construction loan?
Lenders will consider projected rental income but typically only count 80% of it when assessing borrowing capacity. Some lenders won't include rental income until the property is completed and tenanted, which can tighten your serviceability.
What happens if construction costs exceed the original budget?
With a fixed price building contract, the builder is responsible for delivering within the agreed budget unless you request variations. If costs exceed what the lender has approved, you'll need to cover the difference with your own funds.
How long do I have to start building after loan approval?
Most lenders require construction to commence within six to 12 months from the loan disclosure date. If building hasn't started within that window, the lender may reassess your application or withdraw approval, particularly if rates or your circumstances have changed.
