What is an owner-builder permit and should I get one?

The permit is not a licence to do licensed work. An owner-builder still cannot do their own electrical, plumbing or gas work. What it does is let you take on the role of the builder: coordinating trades, holding responsibility for compliance, and carrying the obligations that would otherwise sit with a licensed builder.

What comes with it

• A course or assessment in most states before the permit is issued.
• Responsibility for work health and safety on the site, which is a genuine legal duty and not a formality.
• Statutory warranty obligations to a subsequent purchaser, running for a defined period after completion.
• Disclosure and, in several states, an inspection report or insurance requirement when selling within the warranty period.
• No recourse against a builder if something is defective, because you were the builder.

When it makes sense

It works best for people with genuine construction experience, time to be on site, and a project where their own labour is a large share of the value. It works badly as a way to save the builder's margin on a project you intend to manage by phone. The states also cap how often you can do it, precisely because the permit was being used to avoid builder licensing.