M25, J9 (Leatherhead) take signs for Dorking (A24). At Leatherhead roundabout (Jn of A243, A24, and B2122) take A24 s.p. Dorking continue 0.6 miles and fork left into Headley Road. After 1.9 miles turn right onto Tilley Lane, which becomes Church Lane. The Cock Inn is on left hand side after 0.5 miles. Use top carpark and double park with known hash cars.
Pub does very good food at reasonable prices and won the Surrey Life food and drinks award for Pub of the Year 2017. If you want to eat suggest contacting pub early and booking a table (Tel: 01372 377258 or cockinnheadley.co.uk).