For a building to achieve compliance with Whole of Home provisions, the energy value of building services must not exceed a target energy value. This target energy value is equal to 70% of the energy value of a house of a similar size, having a:
3-star ducted heat pump, rated under the 2019 GEMS for space heating and cooling; and
5-star instantaneous gas water heater, rated under the 2017 GEMS; and
4 W/m2 Lighting power density serving all internal spaces.