Can I change the design or my owner-builder permit after approval has been issued?

Before changing approved work, ask your designer and the relevant planning or building approval authority what amendments are needed. A building surveyor or certifier may advise on building approval, but may not determine planning consent. Also agree any required contract variation, including cost and time effects. Owner-builders should check whether a separate authority needs amendment. Keep written decisions and give everyone the current drawings. Do not treat agreement from the builder alone as approval to depart from approved plans.

Official sources:

• NSW Planning Portal post consent certificates
• QBCC Change replace or surrender owner-builder permit
• NSW Contracts for residential building work

General information only. Requirements vary by state or territory and change over time, so check the current rules for your location.