On-sell (owner-builder)
On-selling is selling a property within the owner-builder disclosure window (NSW 7.5yr, VIC 6.5yr, QLD 6yr), which triggers a mandatory consumer warning to the buyer.
Ask Chalkline about this →To on-sell is to sell a property within the state-defined window after owner-builder work was done. Selling within that window triggers a mandatory consumer warning and defects disclosure to the buyer. Failing to disclose can void the sale or shift warranty liability onto the seller.
Owner-builder obligations do not end when the work finishes. Each state sets a period after completion during which any sale must disclose the owner-builder status and carry the prescribed consumer warning. The windows differ by state:
- NSW: 7 years 6 months.
- VIC: 6 years 6 months.
- QLD: 6 years.
Within the window the seller may also need owner-builder warranty insurance (in NSW, above a contract-value threshold) and a defects or disclosure statement. Once the window has passed, the specific owner-builder disclosure obligation falls away, though ordinary statutory warranties and contract law still apply.
For a builder the practical point is to know your state’s on-sell window and exactly what disclosure it requires before you list an owner-built property. Skipping the consumer warning is not a paperwork technicality, it can let the buyer rescind the contract or pursue you for defects. If you are buying, ask directly whether the home was owner-built within the window and what insurance and warranty cover actually applies, because it is materially different from a builder-built home.
Also known as: Owner-builder resale, selling within the disclosure period.
Category: Owner-builder / Disclosure.
Related
See also
References
- Owner-builder (Chalkline) (verified 2026-06-01)
Last updated: 2026-06-01. Verified: 2026-06-01. Quarterly review for currency.