davidg said:
West London, new to road cycling, getting fitter!?
There's Kingston Wheelers, depending on how far west you are. Not ridden with them myself but I've seen people at events and they seem to have a fair range of ages and abilities and be pretty friendly.
Or if you are that way inclined there's Willesden CC, one of the biggest audax clubs. They do road and other cycling though audax is what they're best known for.
Of course you could do laps of Richmond Park with London Dynamo but of you're new to road cycling that might not be the best place to start.