5 Star Energy Rating
There are energy efficiency standards that apply to all new homes, relocated homes, and alterations and extensions to existing homes.
New homes
Including mud brick houses and new homes with timber sub-floor construction
All new homes must have
- a 5 Star energy rating for the building fabric, and
- water conservation measures, and
- either a rainwater tank for toilet flushing or a solar hot water system.
Relocated homes and alterations to existing homes
From 1 May 2008 the 5 Star energy standard applies to all relocated homes and alterations/additions to existing homes.
Alterations/additions or relocations must have
- a 5 Star energy rating for the building fabric.
There is no requirement for a solar hot water system or a rainwater tank for toilet flushing.
Large alterations
If your alterations represent more than 50% cent of the original volume of the building (including any alterations carried out in the previous three years), the existing building must be brought up to the same standards as the new construction (that is 5 Star building fabric, not a rainwater tank or a solar hot water system).
Smaller extensions
Any extension above 25% of floor area of the existing building or 1,000 square metres (whichever is the lesser) must fully comply with the new standard.
However, if the extension is less than this, there are certain circumstances where the relevant building surveyor has discretion to allow partial compliance where the requirement is overly onerous, technically impractical or does not provide a level of benefit commensurate with cost.
Energy Raters
Your building plans will need to be reviewed by an Energy Rater, to assess whether they comply with the 5 star energy rating.
The 5 Star energy rating is carried out by Energy Raters accredited with Sustainability Victoria. A list of Energy Raters can be found on the Sustainability Victoria web site.
More information
For further information, please contact Maroondah City Council Building Services
on 9298 4327.
