All new homes and building extensions must meet energy efficiency requirements. The table below provides an overview:
New House Extensions
All new house extensions must achieve a prescribed insulation and glazing performance as nominated in the Building Code of Australia.
In most instances, extensions cannot be modelled with computer software to achieve 6 star energy rating without re-insulating walls or upgrading existing windows throughout the whole house.
House extensions are not required to be installed with a rainwater tank or solar hot water system.
All new houses must comply with one of the following:
Dwellings energy efficiency depends on building characteristics such as size, orientation, shape and surrounding environment.
All new buildings must be include either a 2000L rainwater tank connected to all toilets or a solar hot water system.
For information about water tanks, please see the information sheet - Rainwater Tanks. If you would like to know more about sustainable housing please refer to Make Your Home Green or Sustainability Victoria .
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