To drive to Mole Valley from London, take the A3 towards Guildford and then the A246 towards Leatherhead. From Brighton, take the A24 towards Dorking and then the A25 to your destination.
If you prefer to take the train, you can take the South Western Railway from London Waterloo to Dorking or Leatherhead stations. From Guildford, you can take trains operated by Great Western Railway or South Western Railway to Dorking or Box Hill & Westhumble stations.
If you're already in Surrey, you can easily get to Mole Valley from nearby towns such as Reigate, Redhill, and Horsham by car or train.
A suggested route from Horsham is to take the A24 towards Dorking, while for Reigate or Redhill, you can take the A25 towards Dorking or the A217 towards Leatherhead.