Exit Willesden Green Tube (Jubilee Line) and turn right onto Walm Lane. At the junction with Willesden Lane turn left. Pass the petrol station and go straight over the traffic lights, continuing along Willesden Lane. After about 50 metres you will see Hillspring Lodge on your right hand side.
Willesden Lane is off the Hendon Way (A41) in Willesden Green. If you are driving into London the best route to take would be to join the A41 from North London via the M25, M1, A1 or A406 North Circular. Once on the A41 follow it to Cricklewood and turn right onto Cricklewood Lane, passing Cricklewood Rail, turning left on to Willeseden Lane after passing the Willesden Green tube station (on your right).