Campaigners fear a “beautiful” wildlife haven could be destroyed to make way for a new “all-through” school as part of plans for new homes on a barracks site. Maidstone council’s local plan review seeks to allocate space for more than 19,000 homes by 2039 and includes the redevelopment of the Invicta Park Barracks site to meet that goal. The Army says it will quit the site by 2029 and the council has pencilled it in for 1300 new homes. But David Spencer, the planning inspector who signed off on Maidstone’s plans, insists the site will also need to provide a new secondary school. Kent County Co…