Bummer that it's fallen through, but you should be able to make a much better deal in this market. BTW, I've brought a baby up in a fourth floor miniscule flat - you don't need to worry about space too much until they're about two years' old.
In the words of the sainted George Harrison, Watch out now, take care Beware of soft shoe shufflers Dancing down the sidewalks As each unconscious sufferer Wanders aimlessly Beware of maya
I know I'm getting older and therefore am probably senile, but I recall Camberwell Green having a rather splendiferous makeover only a few years ago. Indeed my daughter played in the little stream before the council in their wisdom, turned it off.