Introduction

You (as the property owner) can replace the principal certifier you appointed for building or construction work either by agreement or by approval from Building Commission NSW.

Your builder cannot apply to replace the principal certifier even if you agree with the change.

Replace a principal certifier by agreement

This is where you, the current principal certifier and the proposed replacement principal certifier all agree to the change. 

Within 2 days of being appointed the proposed replacement principal certifier must communicate the change to:

Apply to replace the principal certifier

If you cannot agree with your current principal certifier to appoint a new principal certifier you can apply to Building Commission NSW to change principal certifier.

You will need to:

Visit the Building Commission NSW website for information on the role and responsibilities of a certifier.

More information

Find out how to:

Visit the Building Commission NSW website for more information on replacing a certifier

Contact

If you have feedback or an enquiry contact Building Commission NSW.

Last updated: 2 July 2025