ACL Section 18: Misleading Conduct in Builder Marketing (AU)

What it is

Section 18 of the Australian Consumer Law (ACL) prohibits a person, in trade or commerce, from engaging in conduct that is misleading or deceptive or is likely to mislead or deceive. The ACL sits in Schedule 2 of the Competition and Consumer Act 2010 (Cth) and applies to every Australian residential builder, regardless of size or state.

Section 18 is a civil prohibition. It carries no criminal penalty on its own, but it sits beside section 29, which targets specific false representations about goods and services and does carry penalties under section 224. Most builder marketing matters pursued by the ACCC or a state Fair Trading regulator are run under both sections together.

The test is objective. Intent is irrelevant. If the overall impression a reasonable member of the target audience would take from the conduct is wrong or misleading, the conduct breaches section 18 even if the builder genuinely believed every word was true.

What it covers for residential builders

The phrase "in trade or commerce" sweeps in essentially every customer-facing thing a builder does to win work. That includes:

Advertising and websites

Print ads, Google Ads copy, Facebook and Instagram posts, YouTube videos, sponsored content, website landing pages, blog articles, downloadable brochures and PDF capability statements.

Sales interactions

Sales scripts, display home walk-throughs, quote presentations, tender documents, finance suggestions and verbal promises made by sales staff or estimators at the kitchen table.

Representations about the build itself

Claimed inclusions, finishes, fittings, build times, energy ratings, warranty length, awards won, years in business, number of homes completed and qualifications of staff.

Comparison claims

Statements about competitors, "cheapest in the area" claims and price-beat guarantees.

The ACCC publishes specific guidance that environmental and "green" product claims must be honest, must detail the specific part of the product or process being referred to, must use language the average member of the public can understand, must explain the significance of the benefit and must be able to be substantiated. The same logic applies to any quality claim a builder makes.

Common breach patterns in residential building

Patterns that regulators have pursued or warned about include:

• Photos of homes the builder did not actually build, presented as own work
• "Fixed price" claims when the contract contains broad PC and PS allowances or rise and fall clauses
• "20 year warranty" claims that bundle manufacturer product warranties together and label them as the builder's warranty
• "From $XXX,XXX" pricing with a base inclusion list that no buyer actually accepts
• Claimed industry awards, memberships or accreditations that have lapsed or were never held
• Display home finishes that are not part of the advertised base price, with no prominent disclaimer
• Testimonials written by staff, family or paid third parties presented as independent reviews
• "Owner builder" or "we own the trades" claims when the work is fully subcontracted

A disclaimer in fine print does not cure a misleading headline. Courts look at the dominant impression. If the headline says one thing and the asterisk says the opposite, the headline wins for the purposes of section 18.

Penalties and exposure

Section 18 itself carries no civil penalty, but pecuniary penalties under section 224 apply to breaches of sections 29 and 33 to 37, which almost always run alongside a section 18 claim. The maximum penalty for a body corporate is the greater of $50 million, three times the value of the benefit obtained or 30 per cent of adjusted turnover during the breach period.

Private parties (including customers and competitors) can also sue under section 236 for damages and section 237 for compensatory orders. Customers can rescind contracts and recover deposits where the contract was induced by misleading conduct.

What a builder should do

Treat every marketing asset as if it will be tested in court against the objective standard. Before publishing, ask: what would a reasonable home buyer take this to mean, and can we prove that meaning is true today. Date-stamp claims about years in business, number of homes built and awards. Keep a substantiation file for every quantitative claim. Refresh testimonials annually and only publish reviews with documented consent. Use plain words for inclusions and exclusions, and put the headline price next to the realistic finished price.