Our online booking, payment and certificate lodgement services will be unavailable between 01:00 pm and 10:00 pm on Saturday 20 July 2019, due to system maintenance.
See the conditions you need to comply with before you start construction.
A construction certificate is required to make sure the development meets the minimum health and safety standards.
Before you start any work, you need to give notice of the proposed start date.
Learn about the benefits of our accredited certification services.
You will find answers to some of the most common questions received.
Can I change my approved plans ?
62 Flushcombe Road
Blacktown NSW 2148
Monday to Friday 8.00 am to 5.30 pm
PO Box 63, Blacktown NSW 2148
Phone: (02) 9839 6000
Fax: (02) 9831 1961
ABN: 18 153 831 768
After Hours Emergency: 1300 133 491