Hi Alex,
I think you’re in north Kent, not too far from where Greater London starts? My view is that a lot of SE London is very undervalued, ditto the conurbations on the railway line from Abbey Wood to Dartford. The delays to the Crossrail have in my view left that area as good value, which will pick up significantly when Crossrail opens. If you look at Victorian maps of the South East, a lot of what is now SE London was Kent. I don’t see London’s expansion stopping and transport links giving a 30 minute or less commute into central London can only be good for prices.
Just a personal view albeit one where I’ve put my money where my mouth is!