The author of the report, Douglas McWilliams, said: 'The result of this will be to create a chronic housing shortage, which will force average house prices up faster than average earnings, especially in London and the South-East - good news for those already on the property ladder as they will see their house price increase in value. But for those with low incomes and those who have not yet purchased their first home, this will make the step on to the property ladder even more difficult, and will undoubtedly lead to an increase in the average age of the first-time buyer.'