Is there any restriction on the number of alarm boxes allowed on a domestic property? The neighbour on one side has just had a new system installed, he has a double garage with a room over it, the side is about 8 feet from my house. He has had 5 boxes installed, one on the front of his house, one on the back, 3 on this garage, one on the front facing the road, one on the side at the top of the wall which is about 15 feet high and the last one on the rear wall of the garage. Both of the side and rear ones are about 8 feet away from my property. The are all live according to the neighbour so if the alarms ever go off I am a bit concerned that the noise will be intrusive. I don't know why he had so many fitted, a bit of an overkill in my opinion. Is he allowed to put them so close to my house?