Article – Property and Build On 30 April, Australias building ministers agreed to include minimum accessibility standards in the 2022 National Construction Code. This decision reflects how housing needs to be more flexible to meet the changing needs of an aging population during … On 30 April, Australia’s building ministers agreed to include minimum accessibility standards in the 2022 National Construction Code. This decision reflects how housing needs to be more flexible to meet the changing needs of an aging population during the next decades. Within 40 years, the number of Australians with a mobility limitation is estimated to almost double from 3 million to nearly 6 million.