What are Construction Loans and How Do They Work?

Building a new home involves paying for work in stages as your project progresses, not as a single upfront lump sum.

Construction finance allows you to draw down funds progressively as each stage of the build is completed and inspected. You only pay interest on the amount drawn down at each stage, which keeps your repayments manageable during the build period. Once construction is finished and you receive the occupancy certificate, the loan converts to a standard home loan with principal and interest repayments.

How Construction Loans Differ from Standard Home Loans

A standard home loan releases the full amount at settlement so you can purchase an established property. Construction finance releases funds in instalments, typically five to seven times throughout the build, after each stage is inspected and approved.

Consider someone building on land they already own in Penrith. Instead of receiving the full loan amount upfront, they receive a portion when the slab is poured, another when the frame is up, another when the roof goes on, and so on until completion. Between drawdowns, they only pay interest on what's been released so far. If $150,000 has been drawn down and the total loan is $500,000, interest is calculated on $150,000, not the full amount.

Lenders charge a Progressive Drawing Fee each time funds are released, typically $300 to $500 per drawdown. Over a build with six progress payments, expect around $2,000 to $3,000 in drawdown fees. These are separate from your application and settlement costs.

Fixed Price Contracts and Cost Plus Arrangements

Most lenders require a fixed price building contract before they approve construction funding. This contract sets out the total build cost, the progress payment schedule, and the timeframe for completion.

A cost plus contract, where you pay the builder for materials and labour plus a margin, is harder to finance. Most mainstream lenders won't touch them because the final cost isn't locked in. If you're working with a cost plus arrangement, you'll need a specialist lender, and your options will be more limited.

Owner builder finance is available, but again, fewer lenders participate. You'll usually need to demonstrate relevant building experience and provide detailed plans, council approval, and a schedule of sub-contractor quotes. If you're in law enforcement and considering an owner build, expect to show how you'll manage the project around shift work. That usually means having a registered project manager or highly detailed documentation.

Land and Construction Packages vs Building on Land You Own

If you're buying land and building at the same time, you're looking at a land and construction package loan. The lender finances both the land purchase and the build under one approval, but the funds are released in two parts. The land component settles first, then construction drawdowns follow once the building contract is signed and you commence building within a set period from the Disclosure Date, usually six to twelve months.

If you already own suitable land outright or with a small mortgage, the process is simpler. You apply for construction funding based on the land value plus the build cost. The lender uses the land as part of your security, which can reduce your loan-to-value ratio and sometimes your deposit requirement.

In our experience with law enforcement officers, many inherit or purchase land in regional areas before they're ready to build. If that's your situation, make sure council plans and development application approvals are in place before you apply. Lenders won't approve construction funding on land that doesn't have building approval, and that process can take months depending on the council.

The Progress Payment Schedule and How Drawdowns Work

Your builder provides a progress payment schedule as part of the building contract. This schedule breaks the build into stages, each with a set percentage of the total contract price.

A typical schedule might look like this: deposit when contracts are signed, base stage after the slab is poured, frame stage when the structure is up, lock-up stage when the roof and windows are in, fixing stage when internal fit-out is underway, and final payment when practical completion is reached.

Before each payment is released, the lender sends a progress inspection, either a valuer or a building inspector, to confirm the stage is complete. Once the inspector signs off, the lender releases the funds to the builder. You don't need to handle the payments yourself. The lender pays the builder directly, and you receive a statement showing the new drawn balance and updated interest calculation.

Shift workers often ask how long each drawdown takes. From the time your builder requests the payment, allow five to ten business days for the inspection and release. If you're working a roster that keeps you away from the site, make sure your builder knows they can proceed with inspections without you being present. Most inspectors only need site access, not a walk-through with the owner.

Interest Only Repayments During Construction

Most construction loans default to interest-only repayment options during the build. You pay interest each month on the amount drawn down so far, but you don't reduce the principal until construction is complete and the loan converts.

This keeps your repayments lower while you're potentially still paying rent or living elsewhere. Once the build is finished and you move in, the loan switches to principal and interest repayments based on the full amount drawn.

Some lenders allow you to make additional payments during construction if you want to reduce the principal early, but there's no requirement. Most people in law enforcement prefer the flexibility of lower repayments during the build, especially if they're managing two sets of housing costs.

What Lenders Look at When Assessing a Construction Loan Application

Construction loan applications take longer to assess than standard home loan applications because the lender is evaluating both your financial position and the viability of the build.

They'll review your income, existing debts, deposit, and borrowing capacity just like any home loan. On top of that, they'll assess the building contract, the builder's credentials, the land title, council approval, and sometimes the plans themselves. They want to see that the build cost is realistic, the builder is registered and insured, and the timeframe is achievable.

If you're using the First Home Guarantee or another government scheme that offers a low deposit home loan, construction projects are treated differently. Some lenders participating in the scheme don't offer construction finance at all, while others cap the build cost or require the land to be owned outright. It's not a blanket yes or no, it depends on the lender and the specifics of your project.

Law enforcement officers often qualify for LMI waivers or discounts with certain lenders, but those benefits don't always extend to construction loans in the same way they do for established property purchases. Some lenders apply the waiver to the total loan amount, others only to the land component. You need to compare lenders based on your actual project, not on generic policy.

Renovation Finance vs New Build Construction Funding

If you're doing a major renovation rather than a new build, the funding works differently. Renovation finance can be structured as a construction loan with progressive drawdowns if the scope of work is large enough, typically above $100,000. For smaller projects, you're more likely to use a standard home loan top-up or a separate personal loan.

Lenders want detailed quotes from registered builders, plumbers, and electricians before they approve renovation funding. They'll also want a valuation that includes the expected value after the renovation is complete, known as an "as if complete" valuation. If the numbers don't stack up, they'll reduce the loan amount or decline the application.

Renovation projects are harder to finance than new builds because there's more risk of cost blowouts and delays. Lenders know that once you start pulling apart an older home, you often find issues that weren't in the original scope. If you're considering a renovation, read more about your options in our guide to renovating your house.

Council Approval and Development Application Requirements

You can't start the construction loan application until you have council approval for the build. That means your development application has been submitted, reviewed, and approved, and you have the stamped plans and building permit in hand.

Some regional councils take months to process applications, especially for custom designs that don't fit within standard guidelines. If you're building in a rural or semi-rural area, factor in that lead time before you lock in a building contract or give notice on a lease.

If your project requires additional approvals, such as bushfire assessment, land stability reports, or heritage overlays, get those completed before you approach a lender. Missing documentation will delay your application, and construction contracts often have sunset clauses that expire if finance isn't approved within a set period.

When it comes to managing your application and finding the right lender for your specific build, working with a finance and mortgage broker who understands construction funding and law enforcement income structures will usually get you a faster outcome than applying directly.

Call one of our team or book an appointment at a time that works for you. We work around shift rosters and can handle most of the process without you needing to take time off or visit an office.

Frequently Asked Questions