Buying Land to Build: How Construction Finance Differs from Standard Home Loans
A construction loan releases funds progressively as your build reaches completion milestones, not as a lump sum at settlement. You'll pay interest only on the amount drawn down at each stage, which means your repayments start low and increase as more funds are released. This structure gives you control over cashflow during the build, but it also requires you to coordinate with your builder, lender, and often the council to ensure each drawdown aligns with actual progress on site.
Most lenders structure construction finance as a construction-to-permanent loan, which converts to a standard variable or fixed home loan once the build is complete. During construction, you're typically on interest-only repayments. Once the final inspection is done and the loan converts, you'll move to principal and interest repayments based on the full loan amount. Understanding this transition matters because your repayments can jump significantly once the build is finished, and you'll need to factor that into your budget from the outset.
The Two-Stage Approval Process: Land Purchase Then Build
You'll need approval for both the land purchase and the construction component before settlement on the land occurs. The lender will assess your borrowing capacity based on the combined land and build cost, but they'll only release the land portion at settlement. The construction portion sits in reserve until you're ready to start drawing down. This means you need a fixed price building contract, council approval, and often a registered builder in place before the lender will commit to the full loan amount.
Consider a buyer purchasing land in Reservoir with plans to build a custom design. They've secured land for $450,000 and have a fixed price contract with a registered builder for $520,000. The lender approves the full $970,000 loan amount, but at land settlement, only $450,000 is drawn. The buyer pays interest only on that $450,000 until the first progress payment is due. By the time the slab is poured and the first drawdown occurs, they're paying interest on roughly $600,000. This staggered release keeps early repayments lower, but it also means you're managing multiple drawdown requests and progress inspections as the build moves forward.
Progress Payment Schedules and How Drawdowns Work
Most builders work on a progress payment schedule tied to specific construction milestones such as base stage, frame stage, lock-up, fixing, and completion. Your lender will release funds only after a progress inspection confirms that stage is complete. You'll submit a drawdown request, the lender arranges an inspection, and once approved, the funds are released directly to the builder. Each lender charges a Progressive Drawing Fee per inspection, typically between $300 and $600, which you'll pay at each stage.
The timing between requesting a drawdown and receiving approval can vary from a few days to over a week, depending on the lender and inspector availability. If your builder expects payment on completion of a stage and the inspection is delayed, you may need to manage that gap yourself or negotiate payment terms with the builder upfront. This is where having a fixed price building contract with clear progress payment terms becomes critical. You know exactly when each payment is due, and you can plan your drawdown requests accordingly.
Cost Plus Contracts Versus Fixed Price Contracts
A fixed price building contract sets the total build cost upfront, which gives you and the lender certainty over the loan amount required. A cost plus contract charges you for actual costs incurred plus a builder's margin, which means the final build cost can vary. Most lenders prefer fixed price contracts because they can assess the total loan amount with confidence. If you're working with a cost plus contract, expect more scrutiny from the lender and potentially a lower loan-to-value ratio.
In our experience, buyers pursuing custom design homes in areas like Eltham or Ivanhoe often prefer cost plus contracts for the flexibility they offer during construction. You can make material and design changes as the build progresses without renegotiating the entire contract. But that flexibility comes at a cost. The lender will typically hold a larger contingency buffer, and you may need to cover cost overruns out of pocket if the build exceeds the approved loan amount. If you're weighing cost plus versus fixed price, consider how much design flexibility you actually need and whether you have the cashflow to absorb potential overruns.
When You Need to Commence Building After Land Settlement
Most lenders require you to commence building within a set period from the land settlement date, typically six to twelve months. If construction hasn't started within that timeframe, the lender may reassess your loan or require you to refinance the land component as a standard home loan. This clause exists because holding land without building increases the lender's risk, particularly if property values shift or your financial situation changes.
If you're buying land with the intention to build but you're still finalising your design or waiting for a development application to be approved, factor that timeline into your land purchase. Delays in council approval or builder availability can push your start date out further than expected. If you're likely to exceed the lender's timeframe, discuss an extension before settlement rather than after. Some lenders will grant extensions if you can demonstrate progress on plans and approvals, but it's not automatic.
Interest Rate Structures During and After Construction
During the construction phase, you'll typically be on a variable interest rate with interest-only repayment options. Once the build is complete and the loan converts to a standard home loan, you can choose to fix part or all of the loan amount if that suits your strategy. The construction loan interest rate during the build is often slightly higher than a standard variable rate, reflecting the additional administration and risk the lender takes on during progressive drawdowns.
Some lenders offer the option to lock in a fixed rate at the time of approval, which applies once the loan converts to a standard home loan. If you're building in a rising rate environment, this can give you certainty over your future repayments. But if rates fall during construction, you'll be locked into the higher rate once the loan converts. Weigh the certainty of a fixed rate against the flexibility of staying variable, particularly if your build timeline extends beyond six months.
Managing Cashflow When You're Renting and Building Simultaneously
If you're renting while your build is underway, you'll be managing rent payments and construction loan interest at the same time. For the first few months, while only the land portion is drawn, your interest costs will be lower. But as each progress payment is made and more funds are released, your interest repayments will increase. By the time you're at lock-up stage, you could be paying interest on 70% to 80% of the total loan amount, which can put pressure on your cashflow if you haven't planned for it.
As an example, a buyer building in Coburg might be paying $2,200 per month in rent while also paying interest on progressively drawn construction funds. At land settlement, they're paying roughly $1,500 per month in interest on the land portion. By lock-up, they're paying closer to $3,200 per month in interest. Combined with rent, that's $5,400 per month in housing costs before the build is even finished. Planning for this overlap is critical, and some buyers choose to stay with family or negotiate short-term rental arrangements to reduce the burden during construction.
What Happens If the Build Runs Over Budget or Over Time
If your build exceeds the approved loan amount, you'll need to cover the shortfall yourself or seek additional finance. Most lenders won't increase the loan amount once construction has started unless there's been a significant increase in the property's expected value. Cost overruns typically occur with cost plus contracts or when buyers make variations to the original plan mid-build. If you're considering variations, get a revised quote from your builder and assess whether you have the funds to cover it before committing.
If the build timeline extends beyond the original estimate, your interest costs will continue to accrue, and you may remain in rental accommodation longer than planned. Builders will often provide an estimated completion date in the contract, but delays due to weather, material availability, or subcontractor scheduling are common. Building in a buffer of two to three months beyond the builder's estimate will give you a more realistic view of when you'll actually be able to move in and stop paying rent.
Land and Construction Packages Versus Buying Land Separately
A land and construction package from a developer typically includes both the land and a project home design from a preferred builder. The package is marketed as a streamlined option, and in many cases, the developer has already secured council approval for the home design, which can speed up the process. But the trade-off is less flexibility over design and often less choice over finishes and materials.
If you're buying land separately and engaging your own builder, you'll have full control over the design and build process, but you'll also carry more responsibility for securing council plans, coordinating the builder, and managing the construction loan drawdowns. For buyers in established Melbourne suburbs like Essendon or Hawthorn, buying land separately and building a custom design is often the preferred route because the land itself holds significant value, and a custom build allows you to maximise that value.
How Owner Builder Finance Differs from Standard Construction Loans
If you're planning to act as an owner builder, expect the approval process to be more rigorous and the loan-to-value ratio to be lower. Most lenders will require evidence of building experience, a detailed project plan, and a breakdown of how you'll manage subcontractors, materials, and timelines. Owner builder finance is structured similarly to a standard construction loan, with progressive drawdowns, but the lender will scrutinise each stage more closely because you're not using a registered builder.
You'll also need to manage drawdown requests yourself, coordinate progress inspections, and ensure each stage meets the lender's requirements before funds are released. If you're an experienced builder or renovator, owner builder finance can save you the builder's margin and give you complete control over the project. But if you're new to building, the additional responsibility and reduced borrowing capacity may outweigh the cost savings. Soar Finance can help you assess whether construction loans structured for owner builders align with your experience and financial position.
Call one of our team or book an appointment at a time that works for you to discuss how construction finance works for your land purchase and build plans. Whether you're buying a land and build package or engaging a custom builder, we'll structure the loan to match your timeline and cashflow.
Frequently Asked Questions
How does a construction loan differ from a standard home loan?
A construction loan releases funds progressively as your build reaches completion milestones, rather than providing a lump sum at settlement. You pay interest only on the amount drawn down at each stage, and the loan typically converts to a standard home loan once construction is complete.
Do I need council approval before the lender will approve my construction loan?
Yes, most lenders require council approval and a fixed price building contract before they'll commit to the full loan amount. They'll approve the combined land and build cost, but the construction portion won't be released until you're ready to start drawing down.
What happens if my build runs over budget?
If your build exceeds the approved loan amount, you'll need to cover the shortfall yourself or seek additional finance. Most lenders won't increase the loan amount once construction has started unless there's been a significant increase in the property's expected value.
How long do I have to start building after buying the land?
Most lenders require you to commence building within six to twelve months from land settlement. If construction hasn't started within that timeframe, the lender may reassess your loan or require you to refinance the land component as a standard home loan.
Can I fix my interest rate during the construction phase?
During construction, you'll typically be on a variable rate with interest-only repayments. Once the build is complete and the loan converts, you can choose to fix part or all of the loan amount. Some lenders allow you to lock in a fixed rate at approval, which applies once the loan converts.