Step 1: Use the map below to get yourself to the red indicator that marks the rear (east) entrance to the ICICS/CS Building at UBC. My (shared) office is x461. The 'x' indicates I am in the 'extension' to the building.
Step 2: Enter my building via Engineering Mews, the alleyway that runs north of Agronomy Road at UBC between the extension (X-wing) of the ICICS/CS Building on the west side of the alleyway and the Dempster Pavillon on the east side of the alleyway.
Step 3: If you enter the building through the second set of doors on the left in the photo (roughly where the guy is standing in the alleyway) you will see an elevator. Take that to the 4th floor. My office is x461, which is about half-way down the hall.