Taxi: From main (eastern) exit. Ask for the Senate House car park.
Walk (about 15 minutes):
Leave the station by footbridge and rear (western) exit, turn right
into Guildford Park Road; after 200 yards there is a clearly marked footpath
to the university via a car park.
You are now at the bottom-right corner
of the campus map. The car park leads directly to a road through the
university campus. Remain on the road, following it around to the left,
leading into the Senate House car park. Directly ahead, there is a doorway to
the AA building staircase. The Mathematics Department is on the 4th floor.
Alternative to the staircase: there is a freight lift. Proceed into
the Senate House car park as before, but don't enter the AA door.
The lift is located on the right-hand-side of the AA building (viewed from
the car park).