I live in a flat in a converted building. I live in the roof (3rd floor) and have an existing dormer overlooking a great view of a river and I previously had planning permission to extend it but let it lapse. I now have put in a pre application to extend it and put balcony on. Planners said they would oppose balcony as we over look other back gardens (despite these houses all having balconies overlooking us) they said I could have a Juliet balcony. I talked to an architect who said that as long as you cant sit outside it is a Juliet balcony, is this so I suppose my question is what is the maximum width planners would be likely to allow and consider not full balcony