The collective total for the new mandatory housebuilding target would rise from 300,000 a year to 370,000 under Labour, with an obligation to build homes in all areas, Angela Rayner told MPs in parliament. Councils in England could be forced to build on low-quality green belt sites to meet mandatory targets as part of a government shake-up of planning rules. Under the new regime all local authorities will have a duty to deliver more homes, and unless they produce a clear plan for how this will happen, ministers could step in and take over the process Housebuilding targets could force councils in England to build on ‘grey belt’ Business live – latest updates