In 1831, the residence of the Superior General of the Irish Christian Brothers and the centre of teacher training was moved to North Richmond Street (O’Connell Schools) Dublin from Our Lady's Mount (North Monastery) in Cork. In 1874, the residence of the Superior General of the Irish Christian Brothers was transferred to
Belvedere House in
Drumcondra now the President's House in
St Patrick's College of Education. In 1881, the Congregation moved to
Marino House, on the original
Lord Charlemont demesne. In 1900, the foundation stone was laid for a new Generalate, called St Mary's, and this is still the main building on the college campus today. St Mary's building was completed, and opened, in 1905. The college trained Christian Brothers who taught throughout the world, on all five continents. In 1926, the Congregation became involved in the Irish National School system, and consequentially the college's focus on primary education increased. In 1929, the Department of Education recognised the college as a teacher training college and students were awarded a ''National Teachers' Diploma'' (NT) on completion of their course. In 1971, Brothers of other orders such as the De La Salle, and Marist Brothers, began to attend the college. From 1972, lay students were admitted to Marino Institute of Education. The
B.Ed qualification gained from Marino Institute of Education was validated by
Trinity College Dublin. In 2006, Dr. Anne O'Gara was appointed President of Marino Institute of Education. 2012 saw
Trinity College Dublin join the Christian Brothers in Co-Trusteeship of Marino Institute of Education. In May 2018, Dr. Teresa O'Doherty was appointed President ==Other activities ==