The Great Room
JW Marriott Grosvenor House Hotel
Park Lane
London W1K 7TN

Directions and a map to the venue can be found here.

Parking
On-site parking, fee: 11 GBP hourly, 42 GBP daily (limited availability)
Valet parking, fee: 42 GBP daily (limited availability)
Off-site parking, fee: 12 GBP hourly, 65 GBP daily
Daily congestion charge fee of £10 applicable to personal vehicles until 6.30pm