Owner builder finance

Owner builder insurance and warranty: what the lender needs

Quick Answer

What insurance does the lender require from an owner builder?

Contract works and public liability from day one, workers cover where required, and an understanding that there is no builder's warranty

Before the first draw, owner builder lenders require a contract works policy covering the structure and materials during construction, public liability cover for injury on site, and workers compensation or personal accident cover where the state requires it for people you engage. Owner builders cannot obtain the home warranty insurance that licensed builders must provide, which is one reason lenders lend less, and it creates disclosure or insurance obligations if you sell the home within six to seven years depending on the state.

  • Contract works Required before first draw
  • Public liability Required, typically $10m to $20m
  • Workers cover Where the state requires it
  • Builder's warranty Not available to owner builders

Contract works insurance

Also called construction insurance or builder's risk, it covers the partly built home, materials on site and in transit, and the site itself against fire, storm, theft, vandalism and accidental damage during the build. Lenders require it because their security is a structure that is not yet complete and is vulnerable. The policy should be in your name as owner builder, note the lender as mortgagee, and run for the full construction period plus a buffer. Lapsed cover is a standard reason lenders stop draws.

Public liability and workers cover

Public liability covers injury or damage to third parties, including trades and visitors on site, and lenders typically want $10 million to $20 million of cover. Depending on the state and how you engage trades, you may also need workers compensation cover for employees or personal accident cover for yourself and contractors you engage directly. State owner builder regulators set out what applies, and the lender expects the certificates to be in the file.

The warranty gap

Licensed builders must take out home warranty insurance, which protects the owner if the builder dies, disappears or becomes insolvent and, in most states, covers defective work for a period. Owner builders cannot buy it because they are the builder. That means the lender has no fallback if the build stalls, and it means that when you sell, state law requires you to either obtain an owner builder warranty policy or, in states where none is available, include a statutory warning in the contract for sale for a set period, typically six to seven and a half years. Buyers and their lenders notice it, which can affect resale.

Insurance after completion

On completion the contract works policy ends and a standard home and contents or landlord policy takes over, which the lender also requires. Structural defects in your own work are not insured, which is a reason to keep records of who did what and to use licensed trades for licensed work.

Not sure which lender fits your situation?

shape

Get help with owner builder finance

Finance specialist at Property Finance Help

Most banks will not lend to owner builders at all, and the ones that do have specific rules on LVR, costings and experience. We connect you with a finance specialist who knows which lenders fund owner builders and on what terms.

Property Finance Help connects users with finance professionals who can help review the finance pathway for the property, loan purpose and lender policy fit.

Property Finance Help is a lead generation service, not a lender, broker, or financial adviser. All information on this website is general in nature and does not take into account your personal objectives, financial situation, or needs. Consider seeking independent professional advice before making any financial decision.

Tell us about your property finance goal

Share a few details and we can help identify a suitable next step for your situation.

Tell us what you need and we'll match you with a broker who will contact you directly. Free, no obligation.

Success icon Enquiry sent successfully Error icon Enquiry failed. Try again.

We may receive a referral fee from the broker if we match you with one. Your details go only to them, so they can contact you about this enquiry. Privacy.

Your details are used to assess your enquiry

Ready to get finance help?

Tell us your situation using the form above and a finance specialist will contact you.

Copyright ©2026 Property Finance Help - All rights reserved.

Disclaimer: Property Finance Help Australia provides general information and referral support only. We are not a lender, broker or credit provider and do not provide personal credit advice. Property Finance Help is a lead generation service and not a lender, broker, or financial adviser. We do not provide loans or credit decisions. We connect users with third-party finance professionals who may assist with their enquiry. All information on this website is general in nature and does not take into account your personal objectives, financial situation, or needs. Before making any financial decisions, you should consider seeking independent professional advice. By submitting your details, you consent to being contacted by third-party providers.