Overview of the commercial building disclosure program

What is a Building Energy Efficiency Certificate (BEEC)?

The Building Energy Efficiency Disclosure Act 2010 contains mandatory obligations applicable to many commercial buildings. Under the Act, the Commercial Building Disclosure (CBD) scheme requires most sellers or lessors of office space of 2,000 square metres or more to obtain and disclose a current Building Energy Efficiency Certificate (BEEC). A BEEC is comprised of: 

  • an energy star rating for the base building
  • an assessment of tenancy lighting in the area of the building that is being sold or leased
  • general energy efficiency guidance for owners and tenants.

Why check a BEEC?

The Commercial Building Disclosure (CBD) scheme applies to Australia's largest office buildings and forms part of a package of measures to encourage building energy efficiency developed by the Australian, state and territory governments. Knowing the base building's performance and BEEC lighting efficiency can help organisations to:
  • understand the efficiency of the building
  • understand the likely impacts of lighting energy consumption on your bills
  • identify whether the space has sophisticated lighting controls which has implications for occupant comfort
  • compare the total likely cost of occupancy for different tenancies.

How to use the ratings

Commercial Building Disclosure is managed by the Australian Government Department of Climate Change and Energy Efficiency. Tenants can go to the Building Energy Efficiency Register to view the certificate for their building, or for buildings they are considering for a new lease. The star rating communicated on a Building Energy Efficiency Certificate will be a NABERS Energy rating – either for just the base building or the whole building rating.
  • A base building rating covers the performance of the building’s central services and common areas, which are usually managed by the building owner.
  • A whole building rating also covers the tenanted space. These ratings are only disclosed when there is inadequate metering to obtain a base building rating.


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Related resources

  • CBD general guides

    The Commercial Building Disclosure (CBD) Program requires most sellers and lessors of large office spaces to provide energy efficiency information to prospective buyers and tenants. These guidance notes are provided by the program on disclosure obligations.


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  • CBD Lighting Assessment Guidance

    A tenancy lighting assessment is an important component of a Building Energy Efficiency Certificate (BEEC) required under the Commercial Building Disclosure (CBD) Program. The guides and forms required are available here. 


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  • Map of Green star rated properties

    When choosing your next office accommodation, check out an interactive map of the best performing properties under Green Star and NABERS.


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  • Building Energy Efficiency Register

    Tenants can use this register of Building Energy Efficiency Certificates to see how their potential or existing landlord compares to the market. The certificates are issued by the Department of Climate Change and Energy Efficiency.


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  • Commercial Building Disclosure

    Commercial Building Disclosure (CBD) is a national program to improve the energy efficiency of Australia’s large office buildings. It requires most sellers and lessors of large office spaces to provide energy efficiency information to prospective buyers and tenants.


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