Pratts Bottom is on the south-eastern edge of Greater London, on the border with Kent.
Leave the M25 at Junction 4 and follow the A21 towards Bromley. After one mile you will come to a roundabout; take the A21 towards Bromley. After one more mile you will reach the Pratts Bottom roundabout with an Esso garage adjacent. The village is half a mile up Rushmore Hill, which is the first exit, signposted for Knockholt
Take the A21 through Bromley towards Sevenoaks and Hastings. After 7 miles from Bromley, at the Pratts Bottom roundabout, take Rushmore Hill (third exit, towards Knockholt) for the village proper.