There are 3 car parks close to County Hall that you can pay for, but we would advise as it’s very busy in central London you use public transport where possible.
Waterloo Car Park is a 2 minute walk from County Hall but has no disabled parking bays - http://www.lookingforcarpark.com/
Q-Park Westminster is a 12 minute walk away and whilst it does not have any disabled parking bays, Q-Park strive to make their car parks accessible with lifts, ramps and automatic doors - http://www.q-park.co.uk/parking/london/q-park-westminster
Customers should contact Merlin Entertainment to book a coach parking bay on Belvedere Road by email (preferred) at [email protected] or by phone on 0333 322 2001. This is for coach pick up and drop off only, no long stay parking.