We used to be in SW9 and we moved to SE25 5 months ago, very same reason. We both love it (and Gary the greyhound does to). The area is not at all like London, but people are super friendly and we have a park 3 steps away! P.S: feel free to drop a PM if you want to come a check the area and local park... Heads up it is pretty quiet, but there is one good pizza and a small craft beer place... Quite a lot of property for your money, as houses often go under asking price. Also rougher but much cleaner than Lambeth!