From either direction on the M50 motorway take exit 4, direction Ballymun. Heading towards Ballymun on the R108, take first exit left into Northwood Business Campus. Continue straight on through first roundabout past shops on left until second roundabout, turn right (3rd exit) at this roundabout then take next right and immediate left, Northwood House is on your left. The GPA offices are located on the fourth floor, furthest entrance on left.