Colin. You didn't say what the planning permission was for but yes, such a condition is both legal and enforceable. Assuming the permission relates to a use of land it is giving the planning authority the ability to assess the impacts of the use over a period of time (in this instance 2 years). The reason for the condition sets this out and relates the imposition of the condition to the relevant policy. Once the 2 years are nearly up you will need to reapply and the Council will, if the impact was acceptable, give you a permanent permission ... and if not, refuse permission for the continuation. If it's the latter, and you do not discontinue the use and restore the land, the breach of the condition will provided a route to enforcement action (unless you are successful at appeal). If you are not prepared to wait you could appeal against the imposition of the condition ... but I wouldn't advise it. You might end up loosing the entire permission. You could also consider an application to remove or vary it. Mike
