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Commercial Building Disclosure

Commercial Building Disclosure (CBD) is a national program managed by the Australian Government Department of Climate Change and Energy Efficiency. It was developed by the Australian, state and territory governments to encourage the improvement of the energy efficiency of Australia’s large office buildings.

For more information visit: www.cbd.gov.au

Under the Building Energy Efficiency Disclosure Act 2010, a current Building Energy Efficiency Certificate (BEEC) needs to be disclosed to all prospective buyers and tenants in most cases when office space of 2,000 square metres or more is offered for sale, lease or sublease.

Building Energy Efficiency Certificate

Building owners must provide a Building Energy Efficiency Certificate (BEEC) to all prospective ?purchasers and tenants and to a central Registry.

Building Energy Efficiency Certificate
The BEEC will provide information relating to the energy efficiency of the lighting systems and general energy efficiency information for commercial buildings. The BEEC will include general information about the building:

  • Base Building NABERS rating
  • Building & assessor details
  • Tenancy Lighting Assessment

BEEC recommendations are likely to include:

  • Potential star improvements
  • Degree of Difficulty
  • Payback Period
  • Capital Cost


Click here for an example of a BEEC


The National Australian Built Environment Rating System (NABERS) is a Government initiative to measure and compare the environmental performance of a building against its market. NABERS rates a commercial office, hotel or residential building on the basis of its actual operational performance for the previous 12 month period.

Using national performance data, a NABERS rating prescribes to a set of energy benchmarks. The benchmark rates a building’s greenhouse impact on a scale of one to five; one star being the most polluting and five stars the least. The rating reflects the buildings performance in terms of kilograms of carbon emissions per metre squared (Kg CO2-e/m²).

On average an improvement of one NABERS Energy Star equates to a decrease in greenhouse gas emissions of over 15%.

NABERS can be used to rate buildings on energy, water, waste and indoor environment quality. ?NABERS Energy is the tool used for the Mandatory Disclosure scheme. NABERS can be used to rate base-building, tenancy or whole buildings for energy use and greenhouse gasses (GHG). ?The NABERS Energy rating for offices, previously known as the Australian Building Greenhouse Rating (ABGR), was launched as ABGR in 1998.

NABERS is widely used by the commercial property sector. Federal and State Government tenants are currently required to lease buildings with high NABERS ratings.

For more information visit www.nabers.com.au

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