If you want somewhere fairly quiet, I used to live on the Denmark Hill estate, and it was fine. Denmark Hill station is not too far away, and good sized flats - many with 3 or 4 beds, many with a small balcony. A few have little patio gardens. Not many immediate local facilities though. The Dog Kennel Hill estate can't be beaten for location (shops, station) but it's a bit more noisy. The Nunhead estate, on the corner of Peckham Rye and Nunhead Lane, seems quite nice. The flats are a good size, and of course you're right next to the Rye. Nunhead and Peckham Rye stations are within an easy walk. I like Norman Court up near Dulwich Park and the old Harvester, but transport is not so good unless you like buses.