True Story: I Took My Landlord to Court for Mould and Won

A tenant successfully took their landlord to court over persistent mould in a rental property and secured a judgment in their favour. The case demonstrates how mould—a common defect in Australian residential buildings—can escalate to formal legal proceedings when landlords fail to address moisture and ventilation problems. Court proceedings established that the landlord had a duty to remedy the condition, and the tenant's evidence of the defect and impact on habitability proved decisive.

For remedial building professionals and strata managers, this case reinforces that mould is legally recognised as a material defect affecting premises fitness for purpose. While this involved a residential tenancy rather than an owner corporation dispute, the principles apply across rental and strata contexts. Landlords and building owners who delay addressing moisture ingress, condensation, or ventilation failures face legal liability. The outcome signals that tenants and occupants are increasingly willing to pursue court action rather than accept substandard conditions, which has flow-on implications for how defects should be managed proactively and remediated promptly.