All room locations within the University are split into two parts -  the first part is made up of two letters and is the building code, the second part is the room number itself within that building.  The first number in these codes is the floor of the building that the room is on. 

Here is an example of how it works:

Room code DG227 is broken down into DG - De Grey Court, 227 - second floor room 227.

There is internal signage in all buildings to help you find the correct room.

The following table is a list of all the buildings on campus and their corresponding two letter building code.