From airport take N 2 towards City, at hospital bend cross left over to M3 (De Waal Drive) towards City, about 200 m before the end of M 3 (new houses on the mountain site), turn left into Barnham Avenue, follow through to the 3rd stop street, turn left into Derryst towards mountain, cross Chelmsford Road straight into Pinetree Crescent to No.17.