NABERS is a national rating system that measures the environmental performance of Australian buildings, tenancies and homes. Put simply, NABERS measures the energy efficiency, water usage, waste management and indoor environment quality of a building or tenancy and its impact on the environment.

It does this by using measured and verified performance information, such as utility bills, and converting them into an easy to understand star rating scale from one to six stars. For example, a 6 star rating demonstrates market-leading performance, while a 1 star rating means the building or tenancy has considerable scope for improvement.

Energy Action has the largest pool of expertise in NABERS skills in the country, including a substantial  team of NABERS Accredited Assessors, NABERS Auditors and Trainers.

We conducted over 150 NABERS ratings each year and we have the expertise and experience to assist you through your NABERS assessments, whether it is one site or a large portfolio we can keep your ratings up to date.


The Commercial Building Disclosure (CBD) Program requires energy efficiency information to be provided in most cases when commercial office space of 2000 square metres or more is offered for sale or lease. The aim is to improve the energy efficiency of Australia's large office buildings and to ensure prospective buyers and tenants are informed. The CBD Program is an initiative of the Council of Australian Governments (COAG). 

It was established by the Building Energy Efficiency Disclosure Act 2010 and is managed by the Australian Government Department of Industry.

The CBD Program requires most sellers and lessors of office space of 2000 square metres to obtain a Building Energy Efficiency Certificate (BEEC) before the building goes on the market for sale, lease or sublease.
BEECs are valid for up to 12 months and include:

The building's National Australian Built Environment Rating System (NABERS) Energy star rating

A tenancy lighting assessment of the relevant area of the building

General energy efficiency guidance.

The majority of our team is accredited to undertake CBD Tenancy Lighting assessments and we provide everything you need for your Building Energy Efficiency Certificate.