[1] Park House School was founded in Morehampton Road, Dublin 4, in 1932 by Froebel-trained Lilian Mary Rouviere Fayle.

She was the daughter of Methodist leader WK Fayle, who had a hardware shop in Birr, County Offaly, and the niece of the suffragist, novelist, and playwright Susanne Rouviere Day.

The school also runs a dedicated international programme for overseas students and short-term boarding options for day pupils.

Rathdown is the only school in Ireland that uses a methodology called Mind Lab to develop thinking abilities and life skills through strategy games.

Its operations are overseen by a board of management, composed of four governors, two parents and two teachers, with the school head attending.

Annually, Rathdown sends a team of students and staff to Romania, to volunteer with Habitat for Humanity Ireland to help build houses for local families.

[14] For over 20 years, Rathdown School has been involved in Model United Nations (MUN), allowing the girls to build confidence in public speaking and debating as well as a lasting interest in international affairs.

The school's sports facilities consist of hockey pitches, including a new, world-class, water-based hockey pitch, the Merrion Fleet Arena,[15] tennis courts, outdoor basketball and netball courts, an indoor sports hall, athletics track and tartan cricket crease.