WA owner-builder rules changed in 2026, including a new $50,000 threshold for certain sheds, garages and carports. Find out what you need to know about approval times, training requirements, Form 75 and preparing your application.

From 1 July 2026, WA no longer requires a registered builder for sheds, garages and carports under $50,000. But building permits still apply. Here's what changed, what didn't, and what you need to do before you break ground.