Mirvac considers sustainability and innovation to be key components in delivering cohesive communities that are safe, encourage healthy and active lifestyles and result in lower household expenses. Please note the following items are not mandatory and are intended to be used as a guide only.
Energy Consumption and Greenhouse gas-emission reduction
- Mirvac encourages all homes to achieve a 7 Star NatHERS rating. This may be achieved through incorporation of the following elements where necessary:
- Maximising opportunities for cross ventilation and provide high level operable windows in multi-level homes to allow for heat removal.
- Shading designed to restrict solar access to the living spaces in summer, whilst allowing beneficial solar access in winter.
- Increased rating of the wall and ceiling insulation to the required specification.
- Treated glazing or double glazing where necessary.
- Draft sealing (weather seals on external doors etc.) where necessary.
- Sealed exhaust fans where necessary.
- In addition to achieving a 6 Star rating on the building fabric, Mirvac encourage house designs to include the following energy saving features:
- Gas boosted solar hot water or electric heat pump hot water systems.
- Gas or induction cooktops. - LED light fittings throughout the home. - Exterior lighting fitted with motion sensors. - Low energy use appliances (aim for energy ratings greater than 4 star).
- Energy efficient air-conditioning systems (aim for a COP greater than 3).
- Standby ‘Green Switch’ or Smart home automation to reduce energy whilst the home is unoccupied.
- Solar photovoltaic electricity systems with battery storage.
Water Conservation and Reuse
- To assist in achieving an overall reduction in household water usage, Mirvac recommends that homes incorporate the following measures:
- Rainwater tanks for toilet flushing and irrigation.
- Dishwasher and washing machines with a 4 Star or greater WELS rating.
- Tapware and toilets with a 4 Star or greater WELS rating.
- Showers with a 3 Star WELS rating.
- Purchasers are encouraged to consider water efficient landscape design, soil mix, and plant selections, with a target of a minimum of 70% of planted species to be drought tolerant.