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What is a construction loan?

As the name implies, construction loans are a specific type of home loan designed to fund the construction of new homes. They can also be used to finance major renovation projects on an existing home.

How does a construction loan differ from a standard home loan?

Construction loans have a different structure to home loans taken out to purchase existing homes. Instead of getting the loan amount up front as you would with a standard home loan, construction loan funds are generally released in stages, lining up with the building process.

One helpful feature of a construction loan is that you only pay interest on the amount that has been drawn down, not the whole sum. Many lenders also require interest-only repayments during the construction period although the loan will revert to a standard principal and interest loan once the home is completed.

See also: Interest only vs Principal & Interest for home loans

Why do construction loans come with higher rates?

You may have noticed construction loans typically have higher interest rates than standard home loans. This is because lenders consider construction loans to be higher risk.

With standard loans, if you were to default on your loan repayments, your lender could repossess and sell the property in a bid to recoup any losses. But it's not as easy to do that with a partly built home.

Why do construction loans come with higher fees?

It's difficult for a lender to value a home that doesn't exist yet. This is also why construction loans tend to come with considerably higher valuation fees. Lenders generally require a valuation after each stage of the construction process.

Given these added layers of complexity, construction loans can command higher administration and upfront fees. They also make the process of getting approved for a construction loan a little more involved.

Construction loan requirements

Gaining approval for a construction loan is generally more difficult than for a standard home loan and can involve a bit more paperwork. This is because, in addition to assessing your suitability as a borrower, the lender also has to look at the risks involved with the dwelling you're proposing to build.

Here's a rundown of the general process:

Construction loans: Step-by-step application guide

1. Research the market: Consider whether building or buying an existing home is the best option for your circumstances. This comes down to location, your homebuying goals, budget, and timeline.
   Also, it's wise to start getting an idea of home loan and construction loan interest rates and how both loan products work. This may also have a bearing on whether you ultimately choose to buy or build.
2. Choose your builder and get a quote: If building is better for you, be clear on the type of home you are looking to build and your budget. Decide on a licensed builder who can provide a fixed-price building contract, including detailed plans for your build.
   You will also need to start gathering documents to provide to your lender. These include copies of building permits, plans approved by the local council, and the builder's insurance details, among others (more on this below).
3. Consider home loan options: You will need to compare interest rates, loan features, and how different construction loan products align with your needs.
4. Submit a home loan application: When you've decided on the construction loan that best suits you, lodge your home loan application along with supporting documents (see below).

What documents will I need for a construction loan?

Lenders will typically ask to see:

• Specific written details such as council-approved plans and permits for the construction

• Your fixed-price contract with a licensed builder

• A quantity surveyor report

• Your progressive payment schedule (if you plan to do the work yourself)

• Evidence of builders' insurance and other insurance provisions

• Contingencies if plans fail or run behind schedule

This is on top of the usual requirements that comes with home loans, including:

• proof of identification

• income details

• existing assets and liabilities

• monthly bills

• other financial commitments

What happens next?

After the required documents are lodged, the lender will ask a property appraiser to estimate the expected value of the property once it's completed. This takes into account a number of factors including the property location and market conditions.

Lenders need to have an idea of the home's final value as well as what it will cost to build it. The appraiser's assessment will help the lender calculate your loan-to-value ratio (LVR).

This helps the lender assess whether your project will stack up within its lending parameters as well as determine the interest rate you may be offered should your loan be approved.

Unsurprisingly, it can take some time for construction loans to be approved as there are a lot more players involved in the process.

Adrian Cross

Finance Broker, Loan Market

What the expert says

“There are five points I think are important for people to know about construction loans:

1. Some lenders are better at them than others. There is a big variation. Even though some lenders might advertise that they offer construction loans, they may not be as efficient at them as others. This can make a big difference to the whole process and the client's experience. I would say use a broker who knows which lenders are best for the purpose.
2. Try to be as organised as you can with your land and the home you want to build on it before applying for a loan. I would say secure your land first and you have a bit of time before the title is registered to finalise plans for the home you want to build. It can be a good idea to go to the lender with the land and the build together to save time in applications and processing rather than doing them separately.
3. Try to have a good-sized deposit and stick to the loan contract as much as possible. Basically, lenders want to pay the drawdown amounts as agreed in the loan contract. Sometimes as the building progresses, there might be variations along the way and lenders may be wary of handing over more money if you’re already highly leveraged and there’s no room to cover the extras. Sometimes it’s best to handle those variations yourself if you can.
4. I see some borrowers panic when the final independent valuation might come in at, say, $30,000 less than what they’ve borrowed. That’s the nature of independent valuations. I tell them to hang in there and in two years’ time, that probably won’t mean a thing.
5. If you're a first homebuyer, government grants can be a great boost. These vary between the states and territories and there are price caps on home values. Different lenders have different policies regarding how these grants are considered. Make sure you know what you might be eligible for and speak to a broker about them as they can change at any time."

What happens when your construction loan is approved?

You will need to pay your deposit as you would with a standard home loan. Having a larger deposit can be key to getting your approval over the line.

If your deposit is less than 20% according to the lender's loan-to-value ratio assessment, you may be required to pay lender's mortgage insurance as you would for a standard home loan.

Once your construction loan is approved and deposit has been paid, the building process can commence.

Your first construction loan repayment is generally due one month after the first drawdown is released to your builder.

How long do construction loans last for?

Most lenders will give between six-12 months to access the first drawdown to fund the first stage of construction.

Further drawdowns will take place in line with the completion of each stage of construction (see below) and according to the lender being satisfied with the work done.

Once the first drawdown is released to the builder, many lenders will typically allow up to 24 months for the project to be completed.

Construction loan payment process

Here is a typical schedule of construction stages as work progresses, lining up with progressive drawdown payments:

• Preparation - includes plans, permits, connection fees, insurance

• Base - includes concrete slab, footings, pad, and base brickwork

• Frame - the house frame is complete and approved

• Lock-up - the windows and doors, roofing, exterior and insulation are all done

• Fixing - kitchen cupboards, appliances, bathroom and toilet are all in. Plumbing and electrics are done. Your home is plastered and painted

• Completion - fences up. Site tidied. Any builders or tradespeople receive their final payment

Drawdowns are only released to the builder once the previous stage is complete and assessed as satisfactory by the lender's valuer or quantity surveyor.

How construction loan repayments work?

Construction loans repayments are typically interest-only during the construction period, effectively making them lower until the home is completed.

This is to assist with cash flow during the construction period as lenders make allowances for borrowers' other expenses, such as rent and possible cost variations.

Construction loan repayments generally switch to principal and interest repayments (or the agreed repayment type) after construction is finalised - or at a the end of an agreed interest-only period. This will depend on individual loan agreements.  

What if you want to build yourself?

If you are looking to do the construction yourself, you also will need to obtain an owner-builder permit.

The requirements to obtain an owner-builder permit differ slightly between the Australian states and territories. Many jurisdictions in Australia require applicants to complete an accredited owner-builder course.

These are designed to equip you with the necessary knowledge and skills to responsibly undertake a building project covering construction regulations, project management, and managing contractors.

If you carry out owner-builder work without a permit, you can face considerable fines, so it's worth checking your state's requirements.

See also: How to obtain an owner-builder construction loan

Construction loan pros and cons

As with most lending products, construction loans come with their advantages and disadvantages. It's wise to weigh them up before signing on any dotted lines.

Pros

• Can cut possible losses: Construction loans ensure that builders and contractors are only being paid for completed work, not for work that is yet to be finished. This can provide access to funds when they're needed and also cut losses in the event of any issues that disrupt or halt the building process.
• Ease the cost burden: As you are only charged interest on the loan amount used per stage and not the loan principal, this can ease costs while the home is being built. It may also lead to savings over the loan term compared to standard lump sum home loans.
• Avoid stamp duty: Stamp duty is an unavoidable cost for many home buyers but if you build a home, stamp duty is only paid on the purchase of the land and not calculated on the value of the home itself. This can make building a home significantly less expensive than buying an existing house (but not always). For example, if you buy a block of land for $350,000 and spent another $500,000 building the house, you'd 'only' pay stamp duty on the $350,000 for the initial land purchase.
• Custom-built: You end up with a home as you want it (within your budget constraints of course).

Cons

• More complexity: The paperwork and hurdles you may face can be challenging. Approval for a construction loan requires a significant amount of work beforehand and - if you're not building the home yourself - many long conversations with your builder.
• Higher deposit: The deposit needed for construction loans can be significantly higher than for a standard home loan.
• Higher interest rates: The interest rates on construction loans are generally higher than those of regular home loans as the lender assumes more risk.
• Can be slow: Not only can it be time-consuming to begin construction thanks to the mountain of paperwork you have to provide, but the progressive drawdown payment construction loans can slow down the building process as moving from one stage to the next typically requires lender approval.
• Cost blow-outs: Many construction projects face unexpected cost overruns that no amount of planning can foresee. It's vital to have contingency plans for extra funding in place as your lender may not agree to increase the loan amount.

Construction loan stats

As at the start of 2026, the uptake of construction loans in Australia remains relatively flat with volumes almost 60% down on the peak of 2021, coinciding with the end of the federal government's COVID stimulus HomeBuilder scheme.

In 2024, construction loans were at their lowest level in more than two decades, attributed to higher interest rates, risks associated with the building industry, and the elevated cost of construction materials and labour following on from the pandemic.

In 2025, the Housing Industry Association (HIA) cautiously welcomed an uptick in new construction lending, driven largely by investors and renovations.

However, construction loans are expected to grow by a modest 2% during 2026, compared to a forecast 5% increase in owner-occupier home loans over the same period. 

Are construction loans bigger than standard home loans?

It's difficult to generalise, but often construction loans may be funding more than the home itself. They may also cover the cost of land (if it is being purchased as part of the build), permits, and preparatory work, as well as materials and labour costs.

Construction projects can also come with cost blow-outs and unforeseen changes. That said, loan sizes for both types of loans depend on location, the style of property, scale, and market factors.

While they may not necessarily be 'bigger', they can be more expensive owing to their higher interest rates over standard home loans and higher fees to cover staged project valuations.

Those taking out loans for existing properties will generally know exactly what they need to borrow while there can be an element of the unknown for construction loans. This element of risk also tends to be reflected in the higher interest rates and fees that come with them.