1952, an addition to the Kearns Memorial Wing added three new classrooms, a students’ library and a principal’s office. In 1954, a new convent was constructed on the north side of the property. The former convent was renovated into 2 classrooms and space for the Music Department, which had a staff of 4. The enrollment was 725 students and the school now had a staff of 22. In 1962, a chapel/auditorium was built, a project led by principal Sister Mary Christine. In 1967, another building was constructed with 12 classrooms, labs and a gym. Despite this, however, by 1972 the enrollment of Immaculata had dropped to 400 students. As Immaculata celebrated its golden anniversary in 1978, male students were enrolled for the first time. In 1984, grades 7 and 8 students were added. When Immaculata marked its 60th anniversary in 1988, James J. Shea was appointed as the school’s first lay principal, overseeing an enrollment of 870 students. After Immaculata celebrated its 65th anniversary in September 1994 (after 2 years of major renovations), the school moved to the current location at 140 Main Street. It has been declared an arts academy. The high school's current location was originally built in 1929-1930 to house both St. Patrick's High School and St. Patrick's College (Ottawa), a now defunct Catholic post-secondary institution administered by the Oblate Fathers. In 1973, St. Patrick's sold the building to Algonquin College, who operated a satellite campus there until it sold the building to the Ottawa Roman Catholic Separate School Board to house Immaculata in 1994. Edward Cuhaci was the architect for the renovations undertaken in 1994. In 2000, a satellite classroom site for Immaculata High School was set up in the basement of St. Mary’s Home, to enable an initial enrollment of 10 pregnant teenagers from all schools in the city to continue with their academics during their pregnancies. The school held its first graduation in June 2000. In January 2002, the program, now called St. Mary’s Home Community Outreach, moved into 780 rue de l’Eglise. Immaculata High School celebrated its 75th anniversary in 2003. In 2007, Principal Thomas D'Amico was named one of Canada's Outstanding Principals. The school's sports team is the Immaculata Saints, and the school mascot is the saint bernard 'Bernie Mac'. Principals All of the Sisters who were principals were Grey Sisters of the Immaculate Conception: Sister Loyola (1928) (while students attended classes