The short answer
At the 2021 Census, 43.7% of occupied homes in Noosa Shire were owned outright — the highest share in South East Queensland — and many other dwellings are second homes or holiday lets. Long-held houses and homes left closed for months between visits are where mould in the shire usually gets its start.
- separate houses
- 79.5%
- separate houses
- townhouses / semis
- 12%
- townhouses / semis
- flats / apartments
- 7.8%
- flats / apartments
- rented
- 20.9%
- rented
Second homes that sit closed for months
An owner who lives elsewhere might open a Noosa house a few times a year. In between, it is warm, still and humid inside, and any small roof leak or blocked gutter has months to soak in before anyone notices. The first sign is usually the smell on arrival, then marks on ceilings, mattresses and the backs of cupboards.
For absentee owners, an inspection on arrival gives a clear picture before anything is thrown out or repainted. A humidity logger left running between visits then shows whether the house needs better ventilation while empty or a repair.
Older homes that have been in one family for decades
When a long-held home comes up for sale, it often has original timber windows, older wet areas without modern waterproofing membranes, and decades of patch-ups. Moisture readings around showers, under vanities and at external door sills show whether the wet areas are still holding water. Buyers of these homes benefit from an inspection inside the contract’s due-diligence window, when there is still time to negotiate.
Riverside, lakeside and hinterland properties
Homes beside the Noosa River and the lakes system sit in persistently humid air and some have low floor levels close to the water table. Cooroy, Pomona and Kin Kin add acreage homes with sheds, studios and granny flats that are easy to leave out of a scope. Name every building used for living or storage when booking, so each one can be checked.
Suburbs and towns in this council area
Noosa Heads · Noosaville · Tewantin · Sunshine Beach · Peregian Beach · Marcus Beach · Cooroy · Pomona · Cooran · Boreen Point · Kin Kin · Doonan
Local questions
How do I stop mould in a holiday home I only use a few times a year?
Start by finding out whether there is a leak or only trapped humidity. An inspection plus a humidity logger between visits shows which, and the report recommends practical steps for each.
Should I inspect an older Noosa home before buying?
If the wet areas are original or the house has been empty, a moisture and mould inspection alongside the building report is worth having before the contract goes unconditional.
References
- [1]Noosa (LGA35740) — 2021 Census QuickStats — Australian Bureau of Statistics
- [2]Mould and damp — Queensland Government
- [3]Queensland’s new seller disclosure rules: what you need to know before 1 August 2025 — HopgoodGanim Lawyers
Checked against these references on 2 November 2026.