The Fathers of the London Oratory in Brompton, near South Kensington, opened their first school in King William Street in the City of London in 1852 and two parochial schools in Chelsea in 1856. Seven years later, in 1863, at the request of Cardinal Wiseman, who wanted to provide a wider education for Catholic children than was available at that time, the Oratory Fathers established a school for boys in Chelsea, and in 1870 a school for girls staffed by the Daughters of the Cross. These schools were fee paying and they were the forerunners of the present school.
Both schools flourished but in the early part of the last century Cardinal Vaughan asked the Oratory Fathers to inaugurate the first Central Schools for Catholic children. This they did in 1912, developing the two schools which ceased to be fee paying, into Central Schools on a site in Stewart's Grove, Chelsea.
During both World Wars, sixty six 'Old Oratorians' lost their lives fighting for their country, with some of the men having been members of the Oratory Cadet Corps. The vast majority of Oratory boys joined the Army or RAF, but a select few did join the Royal Navy. Old Oratorians were recipients of decorations, such as the Croix de Guerre, the Distinguished Conduct Medal and the Military Cross. On the outbreak of war in 1939, the school, together with Fr Dale-Roberts of the Oratory, moved to Tonypandy in South Wales, whilst the school site in Stewart Grove was taken over by the War Office and used as a high status internment camp.
In 1959 the two central schools were amalgamated and in 1962 it was decided that the Daughters of the Cross were to be withdrawn after almost a century of devoted work. In 1963 the school was classed as a four-form entry grammar school admitting only boys since there were already many more selective places for girls than boys in the schools in the Westminster diocese. However, those girls currently at the school were, on the insistence of the newly appointed headmaster – who had applied for and been appointed head of a mixed school – allowed to remain at the school to complete their education.
The school moved to its present site in Fulham in 1970, now with six forms of entry (180) at 11+, with girls being admitted annually to the sixth form.
In September 1989 the school, formerly a voluntary-aided school, became a grant-maintained school, continuing in the trusteeship of the Fathers of the London Oratory, who own the building and grounds and appoint the majority of the governors.
The Junior House, occupying a newly built block adjacent to the Arts Centre, was opened in September 1996, to which 20 seven-year-old boys are admitted for a specialist music education, with a strong emphasis on Catholic liturgical music.