Households living in separate dwellings decreased from 2008 to 2011, new survey data shows.
The Australian Bureau of Statistics (ABS) Environmental Issues: Energy Use and Conservation data for March found that 77.5 per cent of Australian households live in separate houses compared to 77.4 per cent in 2008.
Tasmania remains the state with the highest number of households living in separate houses, despite a recorded 0.5 per cent decrease from 2008 to 2011.
This is the first time drops have been recorded since 2005 for New South Wales, South Australia, Northern Territory and ACT.
Western Australia and Queensland were the only states to show increases in households living in separate dwellings at 0.4 per cent and 2.4 per cent respectively.
Flats, units and apartments as household residences are most common in capital cities, at 17 per cent, than outside the centres, at 8 per cent.
Northern Territory, Victoria and NSW all recorded increases in households living in flats, units and apartments.
The ABS Energy Use and Conservation Survey was conducted in March 2011 and included 12,841 households.