Sacred Heart College and the Three2Six Project are Catholic, Marist institutions. This means that they trace their foundations and heritage to the Marist Brothers and that their mission links to that of the international Marist community.
The Marist Brothers were founded in France in 1817 by Saint Marcellin Champagnat, who had a passion for educating the most disadvantaged children in his community and ensuring that they knew and felt that they were valued and loved. In 1889, the Marist Brothers opened Sacred Heart College in Johannesburg. It was then known as Marist Brothers Observatory and was a boys school.
In 1924, the school moved to its current site on Eckstein Street and in 1980 it amalgamated with two local girls schools to form what we now know as Sacred Heart College, Marist Observatory.