The college arrived at Monkstown Park in 1950 from Eblana Avenue in Dún Laoghaire via a short stint on Tivoli Road.
[2] The intended mission of the college's former patron, the Congregation of the Christian Brothers established in 1802 by Edmund Ignatius Rice, was the education of poor boys in Ireland by providing them with basic levels of literacy.
[3] This was the broad aim of the school when it opened its doors in 1856 at Eblana Avenue in what was then known as Kingstown (now Dún Laoghaire), a port town south of Dublin City.
To that end, a decision was made to procure Monkstown Park in 1949 and to move the entire secondary department to this location.
A private junior school was then opened at the Monkstown College with Eblana Avenue taking secondary students again from 1954.
The ethos of the majority of Christian Brothers schools in Ireland in the early 20th century was a strongly nationalist and Gaelic one.
Kennedy and the local Vincent DePaul raised funds for the school at a gala dinner at what is now the Royal Marine Hotel Dún Laoghaire.
The Dún Laoghaire area suffered over 500 military fatalities during the war, with a significant number of these coming from school.
The school at Eblana prospered to an extent that it became impossible to accommodate both primary and secondary departments in the 19th century buildings, with the Dún Laoghaire parish hall often used to hold classes.
This was felt to hinder the college against other local schools who could provide on site sports to their students, facilities which the growing middle class demographic of the area expected.
In 1949 the Brothers purchased the nearby 22-acre (89,000 m2) estate of Monkstown Park, which had been most recently occupied by the Protestant Corrig School.
In order to procure the grounds, the Brothers released lands at Rochestown Avenue to Dún Laoghaire Corporation which had previously been used as the schools playing pitches.
The primary reason for not joining the scheme was the significant capital costs involved in maintaining a school the size of CBC.
In 1987 the school was further extended with a new administration building including new offices, a cafeteria, staff room and technology department.
Events included a Jubilee Concert and the opening of a wall with the names of all the pupils from the time in Monkstown from 1950 onwards, attended by the President of Ireland, Mary McAleese.
[11] Considerable controversy was caused in 2005 in the national media when it was announced, as CBC would receive a portion of the costs of funding the building despite being a fee-paying school from the Irish state.
Transition Year classes won the Comórtas Scannán TG4 in 2005 and were finalists in 2006, the 2005 group having their film represent Ireland in Italy in 2005.
Civics, geography, history, technical drawing, art, music, computers and home economics are also offered.
Extra-curricular subjects are also taught such as Computers, French, Physical Education, Speech and Drama, Singing and Musical Appreciation and Arts and Crafts.
Tutors are available to take students studying German and Music and the school runs an activity club on Fridays.
Class V performed Patrick Pearse's Íosagán[25] under the directorship of Thomas MacAnna, a future Tony Award winner, who was the drama and elocution teacher in the school at the time.
In 2015, CBC Transition Year's wrote and published a short story book, Brainstorms edited by writer Roddy Doyle.
Conlon went on to win the Individual prize at the All Ireland Schools' Debating Championship at University College Cork whilst the Team of Dooney and Barton finished as runners up.
In addition, Stephen Stack and Michael Barton triumphed at the Trinity College Dublin Schools' Debating Competition.
[35] CBC has produced a number of provincial and international rugby players including Paddy O'Donoghue, Patrick Casey, Joseph Brady and Barry O'Connor.
Other rugby figures include the former President of the IRFU, John Lyons and the former international referee Donal Courtney.
Major Team Athletics Honours Other sports taken include golf, swimming, tennis, sailing, orienteering, and squash.
A revival of the sport within the school occurred in 2002 when a team was formed playing 3 games against Mount Anville, King's Hospital and Blackrock College.
Notable past pupils from the Dún Laoghaire and Monkstown schools include: Arts and entertainment Religion and humanitarianism Sport Politics, legal and diplomats Business Academia and journalistic
CBC has been referenced in the popular satire of "South Dublin culture", the book series Ross O'Carroll Kelly.