NSW Building Legislation Amendment Bill 2026

What’s Happening?

The NSW Government has introduced the Fair Trading and Building Legislation Amendment Bill 2026 to Parliament. The bill is part of a broader regulatory overhaul aimed at strengthening consumer protection, tightening compliance requirements, and giving regulators sharper tools to deal with dodgy operators.

If you’re a builder, certifier, or homeowner in New South Wales, several changes in this bill will directly affect you.

Key Changes in the Bill

Here’s a summary of the major changes:

Mandatory Professional Indemnity (PI) insurance for all registered building practitioners under the Design and Building Practitioners Act 2020, effective 1 July 2026.
Expanded scope of the DBP regime to cover repair and renovation work on Class 3 and 9c buildings (boarding houses, group homes, and residential care facilities).
Clearer provisions around Decennial Liability Insurance (DLI), strengthening long-term protections for homeowners against serious structural defects.
Stronger powers for NSW Fair Trading and Building Commission NSW to refuse applications, cancel licences, and hold private certifiers accountable — even after they leave the industry.
New powers to cancel specific authorities on home building related licences.

PI Insurance Requirement from 1 July 2026

One of the biggest changes in this bill is the PI insurance mandate. From 1 July 2026, every registered building practitioner in NSW must hold Professional Indemnity insurance.

This applies across the board under the Design and Building Practitioners Act 2020. If you’re registered and you don’t have PI cover by that date, you won’t be compliant.

PI insurance covers claims arising from professional advice, design errors, or documentation mistakes. It’s separate from Home Building Compensation Fund cover and public liability insurance. Practitioners should speak to their insurer or broker now to understand what level of cover they need and lock in a policy before the deadline.

Stronger Powers Against Dodgy Operators

The bill gives NSW Fair Trading and Building Commission NSW clearer authority to act against practitioners who shouldn’t hold a licence.

Specifically, the regulators will be able to:

Refuse licence applications where the applicant has obtained qualifications through misrepresentation, fraud, or error.
Cancel existing licences where a practitioner’s qualifications are later found to be invalid.
Take action against private certifiers for misconduct — even if the certifier has already left the industry or let their registration lapse.

That last point is a notable gap-filler. Previously, certifiers who walked away from the profession could avoid disciplinary action. Under the amended legislation, Building Commission NSW can pursue accountability regardless.

The bill also introduces powers to cancel specific authorities attached to home building licences, giving regulators a more targeted way to restrict what a licence holder can do without revoking their entire licence.

What This Means for Homeowners

For homeowners, these changes add several layers of protection:

PI insurance means that if a registered practitioner makes an error in design or documentation, there’s insurance backing to cover the cost of fixing it.
Decennial Liability Insurance clarifications give you stronger long-term protection against serious defects that emerge years after construction.
Tighter licence controls reduce the chance of unqualified or dishonest operators holding a licence.

Before you hire any builder or tradesperson in NSW, check their licence status through NSW Fair Trading or use our licence search tool. A valid licence is the baseline — but now you can also ask whether they hold PI insurance, especially for design and documentation work.

For more on what to look for, read our guide on how to hire a licensed builder in Australia.

What Builders and Tradies Should Do Now

If you’re a registered building practitioner in NSW, here’s your action list:

Check your PI insurance status. If you don’t currently hold PI cover, start shopping for a policy now. Don’t wait until June.
Review your licence authorities. Understand which specific authorities are attached to your licence and make sure your qualifications are in order.
Talk to your insurer or broker. Ask about both PI and DLI requirements to make sure you’re covered for the work you do.
Stay across the timeline. The key date is 1 July 2026 — that’s when the PI insurance requirement kicks in.
Monitor NSW Fair Trading updates. The bill may be subject to further amendments as it passes through Parliament. Keep an eye on official announcements from NSW Fair Trading.

For a full breakdown of licensing requirements across all states, see our guide on builder licensing explained state by state.

NSW Fair Trading & Building Legislation Amendment Bill 2026: Key Changes Explained