Many queries can actually be quickly resolved without writing in. To find out when a planning application is required, check out Do I need planning permission?
There is a national plain English guide to the planning system
Each weekday between 0930 and 1200 we will have a planner available to answer queries on a first come first served basis. Our offices are closed to the public. This service is for short telephone conversations (01539 724555) or brief email replies only and not in person. Generally telephone conversations will be more effective.