Can anyone help?
We live in a conservation area and have built a wooden lean to shed on the side of the house. We spoke to neighbours and everyone was happy. It is 5m square. Someone has complained and we have now a letter from the council saying we need planning permission as it is classed as an extension. I have been on the planning portal for extensions and outbuildings and is no clearer on the regulations. Spoken to the the council and they said it should be built out of brick?

We live in a conservation area and have built a wooden lean to shed on the side of the house. We spoke to neighbours and everyone was happy. It is 5m square. Someone has complained and we have now a letter from the council saying we need planning permission as it is classed as an extension. I have been on the planning portal for extensions and outbuildings and is no clearer on the regulations. Spoken to the the council and they said it should be built out of brick?