Would you buy a house on a corner that is back to back semi detached? With one side of the house facing a walkway and the garden to the other side? A side garden if that makes sense. And running along the boundary of your side garden is a lane for a neighbour behind to access back garden. If it was just private lane for them fine, but I’m worried about people using it for anti social behaviour. Also unsure about side garden instead of back, in general.