In law all appeals are made to the National Assembly for Wales. The Assembly will appoint a Planning Inspector to decide the appeal.
In certain cases, usually involving large or significant proposals, the Assembly will reserve the right to decide the appeal itself. However in most cases the Assembly delegates the decision on the appeal to the appointed Planning Inspector.
The Planning Inspector will usually have the right to decide the appeal. He/She can allow the appeal and grant planning permission subject to such conditions as are appropriate. Alternatively he/she can dismiss the appeal and refuse to grant planning permission.
A similar appeals system exists for appeals against planning enforcement notices and refusals (or non-determination of) certificates of lawfulness.
Planning Inspectors will be professional people from various disciplines who have had experience of working in town and country planning. They will range from lawyers, to engineers to architects, surveyors and planners from both the public and private sectors.