Nick Clegg will say that the shortage of homes for young people has created a "generational shift" in the debate, with people becoming more receptive to the idea of new developments which in the past would have been strongly resisted.
The babyboomers of the fifties and sixties, people who were largely catered for by the massive housing expansion after the Second World War, are now watching their children struggle.
The plight of the next generation is making what was an abstract housing shortage increasingly tangible and real. And as we, as a society, become more open to development that creates the space for politicians to be bold.
More top news
Wet and windy in the north tomorrow, bright and warm in the south.
The Democratic presidential told reporters: 'Anybody who complains about the microphone is not having a good night.'
A young girl made a tearful plea at a Charlotte City Council meeting in the US following the shooting of a black man by a police officer.