We applied in good time for the extention, a good three months before expiry date but I seem to recall the letter asking us to re-apply mentioned 'zoning' as reason for refusal. Our planning application is on a barn and are employing a local architect so he has taken care of the plans etc. The main problem encountered in our case has been with the right of way to the property. We have owned a cottage on same piece of land as the barn since 1999 and it appears have never had 'official' right of way to it. This should have been dealt with at the time of purchase (another story!). We heard fairly quickly , about two weeks, through our architect that the dossier was incomplete. (Letter followed after from DDE). Sorting out what's to be done about it is taking a little longer though. Before this occured we were told that we would hear decision within 3 months. I am lead to believe that as the planning application passes through each of the departments for approval they can ask for further information. If this is not the case perhaps other forum members will respond. Good luck with your application. Evie