"Richard J." wrote:
Parking in Richmond's Old Deer Park car park (adjacent to the A316,
which is the continuation of the M3) is currently £5 for up to six
hours or £7 for up to 24 hours (£6 and £8 respectively from 5th
February): its free after 6.30pm. Its only a short walk to Richmond
station, from where a fast train will get to Waterloo in 10 minutes.

Not that fast, in the afternoon anyway; 19 minutes is the fastest. On a
Tuesday afternoon (when the OP is travelling), the time to get to Waterloo
from arrival at Richmond station (including waiting for the train) would
be between 19 and 33 minutes, average 26 minutes. Curiously, despite
having 4 tracks from Barnes onwards, none of the all-stations stopping
trains are overtaken by the fasts.

That's probably because there just aren't that many fast trains, due to the
fact that all the fast/semi-fast trains from Staines onwards originate from
Reading, where there's only one set of lines each way.

--
"For want of the price of tea and a slice, the old man died."