Owner builder loans, where you act as the builder managing your own construction, are offered by fewer lenders and on tighter terms. Lenders generally require a larger deposit, meaning a lower maximum loan to value ratio, evidence of the relevant owner builder permit and your capability, and they manage progress payments carefully. Whether a lender offers this, and the conditions, varies.
Written by Ross McFarlane, Licensed Mortgage Broker (Credit Representative 526725). About the authorManaging your own build as an owner builder can save money and give you control, but it is one of the harder things to finance, because the lender is taking on more risk without a professional builder standing behind the project. Here is what to expect.
An owner builder loan finances construction where you, rather than a licensed building company, take on the role of managing the build. Because there is no builder providing a fixed price contract and the usual builder protections, lenders treat these loans more cautiously than a standard construction loan.
Not many lenders offer owner builder loans, and those that do tend to apply tighter conditions. The pool of willing lenders is smaller, so finding one is itself part of the challenge, which is where matching to the right lender becomes important.
Lenders that finance owner builders generally require a larger deposit, meaning a lower maximum loan to value ratio, to offset the added risk. So owner building may save on construction cost but require more equity upfront, which is a trade off to plan for.
Lenders will generally want evidence that you hold the relevant owner builder permit or approval required in your state, and may look for evidence of your capability to manage the build. The requirements around permits and experience vary, so it is worth understanding what your state and your lender expect.
As with any construction loan, funds are released in stages as the build progresses, and lenders manage this carefully for owner builders, often with valuations at each stage. Because there is no builder contract underpinning the costs, the lender pays close attention to whether the work matches the funds drawn.
Owner builders carry the risk of cost overruns and delays personally, so lenders want comfort that your budget is realistic and that you can cover a contingency. A well planned budget with a buffer makes the loan easier to arrange and the build easier to complete.
Because owner builder lending is offered by fewer lenders on varying terms, the useful step is to match your project to a lender that supports it. A broker who works with construction lending can identify suitable lenders and help structure the finance, usually at no cost to you. This is general information, not advice.
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Yes, but fewer lenders offer owner builder loans and they apply tighter terms, generally a larger deposit, evidence of the relevant permit and your capability, and careful management of progress payments. Conditions vary by lender.
Because there is no licensed builder providing a fixed price contract and the usual protections, the lender takes on more risk, so it generally requires a lower maximum loan to value ratio to offset it.
Generally the relevant owner builder permit or approval required in your state, plus evidence of your capability to manage the build. Requirements vary by state and lender, so check what applies to you.
Last reviewed: June 2026
General information only. This page provides general information about home loans and is not financial or credit advice, a quote, or a guarantee, and your personal circumstances have not been considered. Lending policies, interest rates, fees and eligibility vary by lender and change over time. Always confirm your own situation with a licensed mortgage broker or lender before acting. Ross McFarlane (Credit Representative 526725) is an authorised Credit Representative of Australian Associated Advisers Pty Ltd t/a Keylend, Australian Credit Licence 392169.