Short answer
Brisbane has the highest share of apartments of the eleven South East Queensland councils — about one occupied home in four is a flat or unit — and close to four in ten households rent. That makes lot-by-lot testing of units and baseline testing between tenancies the most common reasons a Brisbane property is sampled.
Tenure
- Rented
- 38.3%
- Owned with a mortgage
- 33.7%
- Owned outright
- 25.3%
Dwelling type
- Separate house
- 62.6%
- Townhouse / semi
- 11.3%
- Flat / apartment
- 25.6%
Share of occupied private dwellings. ABS 2021 Census QuickStats, Brisbane (LGA31000).
How does testing an apartment differ from testing a house?
In a unit the test covers the lot: the walls, ceilings, cupboards and exhaust points inside the owner’s or tenant’s space. Corridors, lift lobbies and shared plant are common property, which is generally a body corporate matter rather than the lot owner’s, so a unit report should say clearly which spaces were sampled and which were not.
Smaller floor areas mean fewer sample points, but they also mean less dilution. A single bedroom where someone has smoked can produce a reading that would be unremarkable spread across a four-bedroom house. For that reason unit reports benefit from discrete samples in each room rather than one composite for the whole lot.
Older Queenslanders and porous surfaces
Brisbane’s inner and middle suburbs still hold a large stock of timber houses. Painted hardwood and VJ boards sample well with the standard wipe method. Unsealed timber, raw plaster and old carpet are a different matter: residue can soak in rather than sit on top, and a wipe of a porous surface may understate what is there. If those materials are present the report notes it, so a buyer can weigh the result accordingly.
Renting in Brisbane: why a baseline matters
The 2021 Census counted 38.3% of occupied Brisbane dwellings as rented. With that many tenancies changing over, owners who test before a new lease have a dated record to point to if a problem appears later. The Residential Tenancies Authority expects the owner to keep the property fit to live in throughout the tenancy, including minimum housing standards, and a baseline is the cleanest way to show what condition the property was in on day one.
Who regulates former drug-lab sites here?
Queensland Health says local governments regulate the health risks of former illicit drug laboratory sites under the Public Health Act 2005. For this area that is Brisbane City Council. Rental matters sit with the Residential Tenancies Authority.
Suburbs and towns in this council area
Fortitude Valley · Woolloongabba · Indooroopilly · Chermside · Carindale · Mt Gravatt · Sunnybank · Inala · Wynnum · Sandgate · Kenmore · Bracken Ridge
Local questions
Does a unit test include the building’s common areas?
Not by default. A unit test samples the lot itself. Common property such as corridors and shared ducting is generally the body corporate’s concern and needs its permission to sample.
Is one sample enough for a one-bedroom apartment?
Usually not. Discrete samples from the living area, bedroom, kitchen exhaust and bathroom give a clearer picture than a single composite, because a small space concentrates residue.
Sources
- Brisbane (LGA31000) — 2021 Census QuickStats — Australian Bureau of Statistics
- Drug contamination in a rental property — Residential Tenancies Authority (Queensland)
- Illicit drug laboratories — Queensland Health
- Australian Voluntary Code of Practice: Assessment, remediation and validation — former clandestine drug laboratories and other methamphetamine contaminated properties (2019) — Environmental Health Australia
Facts on this page checked against these sources on 29 October 2026.