BBC News Published image copyrightReuters Proposals for controversial planning reforms in England have been revised, after new housing targets prompted a backlash amongst many Conservative MPs. A computer-based formula used to decide where houses should be located has been "updated" to focus more on cities and urban areas in the North and Midlands. Ministers said cash for brownfield sites would be distributed more fairly outside London and the South East. Some MPs in southern England said their areas risked being "concreted over". The government wants to 300,000 new homes to be built across England each year by the mid-2020s. In August, it proposed a new formula designed to provide a rough estimate to councils on how many properties needed to be built in their communities.