BarrelofFun said:Altering your roof, ie Skylight, needs planning permission, I'm afraid. I hope you don't have any old nimbys in your vicinity.
Acutally, ignore that. I was thinking of a bay window type 'window' which classifies as an extension. You don't need one for a skylight, unless of course you live in a listed building (which goes without saying).
Starry said:You don't always need planning permission. We're just starting some building works.
You need to get permission if you live in a conservation area, your home is a listed building, the work will go above the current height of your house, any dormer window will overlook a neighbour, you have a previous extension taking your home to it's development limit, any dormer window will face a road.
There were other reasons but those are the ones I remember off the top of my head.
We ended up needing permission (the dormer windows) but it went through with no bother.
BarrelofFun said:http://www.planningportal.gov.uk/england/genpub/en/1011888239467.html
This should help, as well. You should contact you citizens advice bureau if you are still unsure.
I work for a housing consultancy company and if you want any advice PM me, and I can ask about as we have some planning experts etc. People that have studied it in much more detail than the likes of me.