Hi there,

I've got a friend arriving at Heathrow Airport in a week, and he's
going to be staying at my place. The problem is that he's arriving in
the morning that day, while I myself won't be flying back in via
Gatwick till later that evening. The plan is that he's going to
explore London on his own, and that we'll meet up together later on
and take a train to where I live (Uxbridge-ish).
He's going to be bringing luggage along, and will be travelling into
London on the tube. I was looking for a convenient station (no
changing trains and somewhere in central London if possible) for him
to leave his luggage, that is on or close to our route back home.
Wouldn't want to be travelling back to Heathrow to pick up the
luggage, and rather not
Later that evening I will be getting into London via the Gatwick
Express to Victoria, and from there on it's Victoria line to Green
Park, Jubilee to Finchley Road and Met. onwards.

Green Park might be a good station to meet up with him, but does it
have lockers? What other stations do?
We could meet up at Victoria since I'm going there anyway, but I
rather not have him change trains with all the luggage.
Any other suggestions? King's Cross would be a bit far out but I
suppose that since it's a big national rail station it will definitely
have lockers.