A study of the phenomenon published by the think-tank last week concludes that solo living is likely to have major policy implications over the coming years.
The report finds that living alone is disproportionately expensive, especially for working-class people. Inequalities in income are likely to worsen if the trend continues, it warns.
The report also suggests that the increase in solo living could have significant environmental consequences. "The domestic sector makes use of almost a third of the UK's energy and more households will lead to greater energy use," it predicts.
Home Alone? can be viewed via www.PlanningResource.co.uk.