I was planning a rear roof dormer extension. The council have hit me with this:
If you decide that permission is required then you will need to make a planning application for the work and this will be assessed against our supplementary planning guidance for extending your home. This would require that the dormer is inset within the property by
0.7m to the side and 1m up from the eaves the ridge can be maintained at the same height as the existing ridge of the property.I would need planning permission due to other development on the house. The dormer would exceed permitted development. Also, on the council notes about needing planning permission, it mentions permitted development volume AND complying with this supplementary guidance. There is a house 4 doors away with a dormer showing very little roof slope below, and more like 40cm inset from the boundaries.
What is the legal status of the "supplementary guidance", and can it be successfully appealed against ? I'm sure I would have a case to build a dormer as big as the one 4 doors away.
Thanks, Simon.