The Technology Wing is located on the southern portion of the Main Building. Because the Central Section of the building is on a raised foundation to the basement, and the Technology Wing is built level to the ground, there are ramps connecting the basement and first floors of the Central Section to the first and second floors of the Technology Wing, respectively. The tech wing was part of the original building. It used to be the ARMO Hall (Association of Regina Mundi Old Boys), thus there was previously dorms in that wing. There was also a hallway on the top floor of the tech wing (in the storage/office or T104), which was shut off and converted into part of T104. The tech was also added on in 1988, when the school underwent the major renos.