Steel Building opened in 1950 as a Convent for the Sisters of St. Martha, housing a chapel, dining hall, kitchen, infirmary and a dormitory for the Sisters who worked there.
When it was remodeled in 1975, to make way for the School of Music, it was named in honour of Dr. G. Douglas Steel, former Principal of Prince of Wales College.
The former chapel became the Dr. Steel Recital Hall and the infirmary and dormitory rooms became studios, with the lower level still functioning as kitchen and cafeteria until 1990. This lower level is now home to the School of Nursing, while the Music Department occupies the remainder of the building.
