Hello -
I recently discovered that the guttering downpipe of the largish (12 square metre) conservatory of my recently bought house just goes into the clay and ends, right next to the footings. There's not even anything resembling a soakaway, which might explain why the conservatory is moving a bit.
So, I've added a bit more guttering, and the conservatory now drains into one of the downpipes on the main house, which in turn drains into a shared rainwater sewer. It's definitely a rainwater sewer, because the drainage plans show separate rainwater and foul sewers serving the house.
Do I need some kind of building regulations approval for doing this? Some on-line discussions suggest this is required.