I would want to know where that side entry leads down to, is it shared between you and the neighbour? Is there a right of way or easement allowing you onto their property or vice versa.
No photo of the back of the house would possibly suggest the alleyway could be an issue.
Also if you drop down on the map and get to the right house it is next door but one to a shop. I would want to know how busy that get with cars etc as it is on the corner, plus if it is the same shop on street view it is open 6am to 11pm. Just worth a ponder.
But I agree, need to see ceilings meeting walls, look at sockets etc. Nothing is horrific, just cosmetic unless survey throws up anything else.