The ageing society poses one of our greatest housing challenges. By 2026 older people will account for almost half (48 per cent) of the increase in the total number of households, resulting in 2.4 million more older households than there are today. By 2041 the composition of the older age group will have changed dramatically. There will be a higher proportion of the older age groups, including the over 85s, a greater number of older people from black and minority ethnic groups, and double the number of older disabled people. One in five children born today can expect to live to 100 years old.