Andy Burnham has pledged 'the biggest council-housebuilding programme since the post-war period' - Matt Cardy/Getty ImagesAndy Burnham's council housebuilding blitz could cost nearly £50bn over 10 years, according to new research. To build 300,000 social rent homes, the think tank said a further £8bn would be needed over the 10-year period. Mr Burnham is yet to iron out the details on what his council housebuilding plans would involve but has promised to usher in the "biggest council-housebuilding programme since the post-war period". The findings from the think tank add to growing concerns about how Mr Burnham will fund his council housebuilding blitz as Britain grapples with challenging public finances. Alongside the Prime Minister's mission to boost council housebuilding, Mr Burnham has also promised to fix social care and take further measures to ease living costs.