[4] In addition to science laboratories and IT space, the school had for many years a substantial lending and reference library with two paid staff and a rota of parent volunteers, and while the collection had to be moved to make space for teaching, the library room hosted a talk by Bono in late 2022.

[7] There have been plans for many years for a new school building to be added onsite to cater for the extra students, whose numbers are otherwise leading to pressure on space and loss of other facilities to additional classroom need; as of 2022, there is no spare classroom space, nor changing rooms for sport.

[7] In 2017, the Department of Education and Skills commissioned a major architectural firm, Wejchert, to design a new main school building, and they assembled a full construction project team.

[10] The school was originally located in Ringsend, and moved to a new premises on Sir John Rogerson's Quay in 1773.

In September 1976, 14-year-old drummer Larry Mullen Jr. posted a notice on the school's noticeboard, looking for fellow musicians.

[22] Christopher Nolan's autobiographical novel Under the Eye of the Clock, which won the Whitbread Award, is based around his time in Mount Temple.