"The fastest growing section of the population and as such the one which will be a major driver of the coming housing crisis, is the over 65s, the number of who is expected to increase by 50% in the next couple of decades, to 15.5 million by 2030.
There is a chronic shortage of appropriate housing stock for downsizing in old age.
"Survey after survey has shown that the preferred home for pensioners would be a bungalow - indeed it would be the home of choice for around a third of the population. However, bungalows constitute just one in 50 British houses".
It appears that developers are unwilling to build more single-storey homes due to the land space they take up which does not fit well with the developers' preferred density of 35-50 dwellings per hectare."