Directions to 3 College Green
The Department of Political Science at Trinity College Dublin is located on the 4th and 5th floors of 3 College Green, with a view south over Dame Street, east across the TCD campus to Howth Head, and north-west towards the Phoenix Park. Access is via the doors at 3 College Green; on the map of the TCD campus, the department's building is on the western corner of College Green and Foster Place (type 'Political Science' into the Search box).
As the map shows, the departmental and staff offices are not located on the main Trinity Campus but rather directly across College Green, facing the historic Bank of Ireland building across the tree-lined and taxi-rich Foster Place. Some offices are located next door at 3-4 Foster Place in the historic AIB Bank, a listed building. The Political Science office is located in room 5.02. To reach it, take the first lift as far as floor 4 (confusingly, that part of the building has only four floors whereas the part in which the department is located has five floors). Turn left out of the lift, through the glass door, along to the end of the corridor, and then turn right; you'll now be facing Room 5.02, the main departmental office.
The Department's undergraduate noticeboard is located one floor below the departmental office, in the corridor leading to 3 College Green; to reach it, take the first lift as far as floor 3 and turn left.