Project doubles number of new starter homes in England to 200,000 . Properties will be 20 % cheaper than their market value for under-40s . Starter homes can cost 450,000 or £no more than £250,000 in London .
Project doubles number of new starter homes in England to 200,000 . Properties will be 20 % cheaper than their market value for under-40s . Starter homes can cost no more than £250,000 or £450,000 in London .