A bid for a new winery that could turn Kent’s only city into “England’s sparkling wine capital” is facing another legal challenge. Environmental campaigners claim the approval of plans for the £32 million development at Canterbury Business Park, off the A2 near Bridge, were “rushed” as part of a process they say was unfair. They add it is “completely unnecessary” to build on the greenfield site, which sits in a protected Area of Outstanding Natural Beauty (AONB). However, Tenterden-based winemaking giant Chapel Down – which will run the operation – describes the latest efforts to thwart the pr…