Designed for ageing in place? Check. Up to three or four bedrooms? Check. Can be folded down to 2.5 metres wide? Check. Meet the innovative VanHomes making the old granny flat look like the doghouse.

Retirement villages and land lease communities are both facing a shortfall of suitable sites and planning delays. Social and affordable housing is failing to keep pace with demand.

Research shows that many over-65s own their own home. But a large proportion have little in the way of wealth.

Australia is looking down the barrel of a rapidly ageing populatio