You might be thinking of getting a construction loan to help you start building.

For some Australians, buying a home is not enough — building the home of their dreams is the ultimate goal.

If you are amongst these Australians, then you might be thinking of getting a construction loan to help you start building.

Being hands-on in constructing your dream home seems exciting, but the financial side of it is quite complicated, especially for first-timers. Construction loans are tricky, to say the least, which is why it is crucial for you to properly educate yourself on how this type of financial product works.

Construction Home Loan: The Basics
A construction loan is a type of home financing aimed to help those who are building their house from scratch. It does not work the same way as a regular home loan, which can only be used when buying an established property. A construction home loan covers the expenses you incur as you build your own home.

Construction loans have an entirely different structure than the typical housing loan. If you use a construction loan, the amount you estimate your home might be will not be given away in lump sum — instead, your lender will be giving you portions of your loan in progression, or what are widely-known as draw-downs or progress payments.

However, you need to come up with a deposit that will cover the initial cost of the materials needed to start construction. Typically, the amount of down payment your lender will require is 5% of the total building cost.

How do construction home loans' draw-downs or progress payments work?
Once your construction loan gets the approval, your lender will be able to make payments to your builder during every stage of construction. As each phase is completed, your lender will require you to present an invoice from your builder before it can issue a payment.

Your builder will outline the total amount needed to construct your home, dividing the expected costs into several segments. Lenders will be very involved in the process — they will typically send someone to check on the progress of construction before releasing the next payment to your builder. This move is to your advantage since it ensures the quality of your future dwelling.

  • First stage: Slab down or base

The first loan amount will cover the costs of building the base of your home. This stage includes laying the foundation of the house, levelling the ground, installing plumbing, and waterproofing the foundation. This stage comprises 10% of your contract and takes up to two weeks.

  • Second stage: Frame

For the second stage, your lender will pay for the expenses incurred building the frame of your property. During this phase, your builder will focus on constructing the trusses, roofing, and windows of your home. Taking up 15% of your total contract, this stage may also include some of the brickworks needed. This stage of construction takes up a month to complete.

  • Third stage: Lock-up

This period gets the most significant proportion of your contract at 35%. It is called lock-up since all its elements are for the purposes of closing up the property. The third chunk of payments from your lender will be for the construction of external walls, doors, and insulation of the house. Builders need four weeks to finish this stage of construction.

  • Fourth stage: Fixing or fit-out

In this stage, your lender will be paying for all the fixtures and fittings needed to complete the home — shelving, kitchen and bathroom cabinets, doors, tiles, and all internal claddings will be constructed. Plumbing and electrical systems will also be finalized. This stage makes up 20% of your total building contract. Fixing or fit-out stage usually takes up to six weeks of work.

  • Fifth Stage: Completion

As the name implies, this stage covers all the finishing touches, including painting, installation of fences, polishing of walls and floors, and cleaning of the site. These concluding activities take up 15% of your total contract. This final stage takes up to two months.

After the construction of the house, you have to do final rounds of inspections to make sure that the property is built correctly. You have to make sure that within three to six months after the property construction is complete, you inform your builder of all the issues and additional works that need to be done.

How do lenders charge interest on construction loans?
When you get a construction home loan, your lender will only charge interest on the amount of the credit that was drawn at a particular stage of construction. For instance, even if you get an approval for a $300,000 construction loan and have only used $100,000 so far, interest will only be charged on the $100,000 you’ve used.

Throughout construction, the loan remains interest-only. At the end of the development of the house, you may ask your lender if you can continue with an interest-only scheme. You can also change your loan to principal and interest.

Some homeowners choose to either refinance their construction loan after the process is finished or use an end loan. Others convert the loan to a standard mortgage when the house is fully constructed.

What documents do you need to apply for a construction loan?
In addition to the usual requirements for taking out a loan, you will need to provide certain documents to qualify for a construction loan.

1. Building Contract
This is the most important document you have to provide since this outlines the construction stages, progress payment schedule, the timeline of works, and the costs of building the home.

2. Building Plan
This is the blueprint of your future home. It includes the layout and the size of the house you intend to build.

Aside from the plan, you will need to provide your lender with the building specifications, which will detail the materials and finishes you are planning to use for the construction of your house.

3. Quotations
Your lender will also need the estimated costs of building additional features in your property such as solar panel installation, pools, and landscaping. Lenders often look at these things and assess if these will be able to boost the value of your home.

Buying, building or looking refinance? The table below features home loans with some of the lowest interest rates on the market for construction. 


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  • Fast turnaround times, can meet 30-day settlement
  • No ongoing fees
  • Unlimited extra repayments

Construction Home Loan (LVR < 80%)

  • Fast turnaround times, can meet 30-day settlement
  • No ongoing fees
  • Unlimited extra repayments
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Green Construction Home Loan (Interest Only)

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    Flexi First Option Investment Loan (Principal and Interest) (New Customer) (LVR 70%-80%)

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      Extra Investment Loan (Principal and Interest) (LVR 80%-90%)

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        Fixed Options Home Loan (Principal and Interest) 1 Year

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          Wealth Package Variable Home Loan (Principal and Interest) (LVR 90% - 95%)

            Base criteria of: a $400,000 loan amount, variable, fixed, principal and interest (P&I) home loans with an LVR (loan-to-value) ratio of at least 80%. However, the ‘Compare Home Loans’ table allows for calculations to be made on variables as selected and input by the user. Some products will be marked as promoted, featured or sponsored and may appear prominently in the tables regardless of their attributes. All products will list the LVR with the product and rate which are clearly published on the product provider’s website. Monthly repayments, once the base criteria are altered by the user, will be based on the selected products’ advertised rates and determined by the loan amount, repayment type, loan term and LVR as input by the user/you. *The Comparison rate is based on a $150,000 loan over 25 years. Warning: this comparison rate is true only for this example and may not include all fees and charges. Different terms, fees or other loan amounts might result in a different comparison rate. Rates correct as of February 21, 2023.

            Not sure which type of loan is best for you? You can check the best home loan deals the current mortgage market has to offer!