I have questioned the council on the conflict of interest side of things and they do appear to be investigating that. I’m not holding my breath though,.
My revised planing scheme included planting Western Red Cedar around the the observatory and growing it to a height of 2m. I also included painting the visible crown of the observatory (the dome above 2m in a sympathetic colour).
As I said the conservation officer is happy with the new scheme, its just the neighbouring district councilor who is the problem..