Checking your area with Streetmap.co.uk I'm reminded that there is a large superstore just down the road from you. Can't remember if it's Sainsbury's or Tesco's?
Many moons ago I lived on the Kennington Park Estate opposite the Oval cricket ground and it was pretty chilled then. As mentioned on the other thread, get yourself a bike (and a quality lock!) and you'll find you live central to all things.