WA renovation guides

Permits, costs, and WA building rules — explained plainly by someone who works in the industry.

Do I need a permit to build a deck in Perth?
Decks are one of the most misunderstood structures in WA. Unlike sheds and patios, there is no size-based exemption — here's exactly what the rules say.
Read guide →
How much does an alfresco cost in Perth 2025?
Real price ranges from budget to premium, what drives the cost difference, and which parts you can DIY legally in WA.
Read guide →
Retaining wall permit rules in WA — the 500 mm rule explained
WA's exemption threshold is 500 mm — not 1 metre like some states. Most Perth homeowners don't know this until it's too late.
Read guide →
When do you need a permit for a shed in WA?
The 10 m² and 2.4 m rules — and the three conditions that must all be met at once for your shed to be exempt in Perth.
Read guide →
Bathroom renovation costs in Perth 2025 — what's realistic
Why Perth bathroom renos cost more than the national average, what the price ranges really mean, and the trade licensing rules you can't skip.
Read guide →

Get your specific answer instantly

Use the calculator to check permits and costs for your exact project size and finish level.

Open the calculator →