Chapman Environmental are licenced, accredited and fully qualified to offer BASIX certification services in NSW


Our friendly team provides fast, professional service at competitive rates.


BASIX (Building Sustainability Index) Certificates were introduced by the NSW Government in 2004 as a control tool / mechanism to help reduce the amount of water and energy use in residential dwellings.

All new dwellings, alterations & additions with a construction value of $50,000 or more and pools and spas with a volume greater than 40kl must submit a BASIX Certificate with their Development Application (DA) or Complying Development Certificate (CDC).

Our team at Chapman Environmental have over 10 years combined experience in the BASIX industry. By engaging the services of our accredited sustainability assessors you will have the peace of mind knowing that your new home or extension is fully compliant with the current BASIX requirements.

Browse through our website to find out exactly what BASIX is all about, when you need one, what it will mean for you and how to go about getting one.


  • ABSA Assessor Lic No: 20920
  • NatHERS Assessor Lic No: TN022551


Contact us to find more