NABERS Ratings

Stand out with a high-performing portfolio

What is NABERS?

NABERS (the National Australian Built Environment Rating System) benchmarks a building’s energy efficiency, carbon emissions, as well as water consumed and waste against similar buildings. It is measured on a 6-point scale, with a 6-star rating the highest (market leading performance) and 1-star being the lowest (poor performance).

Over ten years of sustainability consulting.

At NettZero, we take pride in our ability to apply the NABERS rules with precision, integrity, and efficiency. We are a team of knowledgeable, experienced and innovative professionals, dedicated to delivering efficient and cost-effective assessments for your commercial buildings and portfolios. Our team is spread across Brisbane, Sydney and Adelaide, working with organisations of all shapes and sizes across Australia since 2007.

When you work with NettZero, you’ll get access to our team of sustainability engineers who will work closely with you to help identify areas of inefficiency, cost-saving initiatives, and get the most out of your NABERS Rating.


NABERS ratings for offices measure your building’s impact on the environment and can rate either the base building, tenancy or whole building. A NABERS rating works by comparing the performance of your building against a set of NABERS benchmarks. NABERS office ratings can cover energy, water, waste and indoor environment, helping you understand every aspect of your building.

nabers Base Building

Rates central services of a building such as heating and cooling systems, BMS as well as lifts and common area lighting.

NABERS Tenancy

Rates only the energy used in the space occupied by the tenant in a building.

Nabers Whole BUilding

Rates both the base building and tenant occupied space. Usually conducted when there is a single tenant occupying an entire building.


Enables Tenancy energy ratings to be efficiently conducted alongside base building and/or whole building energy ratings in a single application. 


For more info visit NABERS webite or call us on 07 3123 4930

Shopping centres

NABERS Energy and Water ratings for shopping centres assess and rate all services provided by the shopping centre owner to retail tenants and the associated back-of-house requirements. This includes:

  • All services provided to common areas
  • Air-conditioning services provided to tenants
  • All water consumption across retail tenancies
  • Services provided to car parks
  • All vertical transportation located within common areas.


NABERS Apartments rates the energy and water usage (paid for by the owners corporation) within the common property areas of your building. This includes:

  • Lifts and lobby areas
  • Car parks
  • Gyms
  • Pools 
  • Water features

Request a quote today.

Want consistent NABERS performance?

Even 5 Star buildings run the risk of becoming complacent after the completion of a successful rating. NettZero can help make sure your buildings stay on track.