If you're wanting to swap out your flat roof for a pitched roof and change the windows's doors on your existing lean-to. Obviously you are increasing the volume. Therefore you need planning permission and building regs to be involved.
I'm wondering if this counts as a new build and the building regs will want you to redo all the foundations even though you leaving the existing walls in place.
The lean-to with solid double brick side and front walls have been in place for over 25 years. One of the walls is shared with the neighbour for his lean-to. The foundation is pretty deep as far as I can tell but probably not deep enough for currently new builds.
I'm wondering if this counts as a new build and the building regs will want you to redo all the foundations even though you leaving the existing walls in place.
The lean-to with solid double brick side and front walls have been in place for over 25 years. One of the walls is shared with the neighbour for his lean-to. The foundation is pretty deep as far as I can tell but probably not deep enough for currently new builds.