The appeal process depends on the complexity of the issues relating to the requirements of the notice, and you have the options of proceeding either through written representations, informal hearing or Inquiry.
Many appeals in respect of Enforcement Notices are by means of an Inquiry, as there may need to be complex legal issues to discuss or consider. Whilst you may consider Written Representations to be appropriate to your case, the final decision as to the type of procedure will rest with the Planning Inspectorate, in consultation with yourself (or your agent) and the local planning authority.
A final decision will subsequently be made in writing after the site visit. The whole process from submission to decision should take around three months.