By City A.M. Reporter The boss of housebuilder Berkeley has warned that Britain’s planning, tax and red tape regime have created an “increasingly uncertain, unpredictable and burdensome” environment for new projects. Berkeley Group chief executive Rob Perrins used a market update this morning to warn that the three-pronged attack on building would drive investment away from urban areas. “It will lead to lower productivity, fewer jobs being created and net zero being harder to achieve, as the efficient re-use of land in urban settings to deliver, well-connected, nature-rich new communities, nea…