Compton is easily accessible by car as it is signed just off the A3 south of Guildford. Take the B3000 from the A3 signed to Godalming/Farnham (brown tourist signs to Loseley House) and then Compton. After the roundabout at the end of the slip road take the first left onto the B3000.
Continue along the B3000 for 2 miles until you see the sign for The Withies Inn. Turn left into Withies Lane and The Withies Inn is a few hundred yards on the right.