As above basically! Seen a house that ticks a lots of boxes in a market where there isn't a lot coming on, but there is a small electrical substation at the bottom of the garden. Not in the garden but right next to it - one wall forms part of the boundary. My worry isn't about safety as such, but more re-sale value and whether it would put future buyers off/ affect house price. Size is about 3x3m in a small brick building. No noise that I noticed but wasn't massively listening for it. Would really appreciate different people's thoughts about whether you would consider it?