Sounds to me like you have Roma gypsies living next to you - the rug washing, we have a family across the road, rugs always hung out over the wall and too many to count living there but they are friendly and nice and keep themselves to themselves, so in general they are nice to live beside
however in your case and the rats/cat situation you really need to report it to the environmental health officer, as regardless of what they are doing or not doing with the rats it is a health risk to you and your family so it needs to be sorted asap, its a simple 5min call and they come out and do an inspection and set the wheels in motion to get the issued solved...they will use poison so if you have animals then keep them inside and unfortunately their cats may come off the worse for this if their is rats inside and out Im not sure how they can keep the cats in and the rats out
but ring them asap and get the issued resolved





Ended up cutting back all of the garden (as it was a bit over grown / made a nice area for them) and sprinkled poison everywhere where they could come in and also all around the garden.

