Note plug sockets. How many, are the in suitable positions.
Check out parking.
Check if neighbours have access rights.
Look.for damp, bits painted over not matching rest of decor
Is like a show home? If so where will you keep your vacuum ironing board, mop bucket, suitcases etc.
Whats the roof like?
check the boiler to gage how old it is.
Look at the fuse board.
What condition are the radiators in?
What's nearby - schools? Rat-run, nearest shop to get a pint of milk and bread.
Is the bus stop outside your door.
Is ot a conversation area?
What are the neighbours houses like? If extended and this one isn't- gives you an idea of the president set if the want to extend