Armstrong Building Certifiers is based on the Northern Beaches of Sydney and our service areas are the greater Sydney area.

Lee Armstrong the owner has been involved in the Construction industry for over 25 years and not only is Lee a Principal Certifier but also still retains his Builders Licence This enables Lee to completely understand what is required not only at the issuing of approvals stage but during the complete construction process.


  • Construction Certificates — Assessment and approvals
  • Complying Development Certificates – Assessment and approvals
  • Principal Certifier Services — For all Class 1 & 10 Buildings
  • Swimming pool fence Compliance Certificates — Residential and Commercial
  • Owner builder permits accepted — Case by case basis

Please click here to review our  Terms & Conditions.


Armstrong Project Pty Ltd trading as – Armstrong Building Certifiers
34a / 49-51 Mitchell Rd Brookvale NSW 2100
PO Box 666 Freshwater NSW 2096
02 8484 0353