St Brigid's College
|St Brigids College|
|Type||Private, Co-educational (Years K-6), Single-sex (Years 7-12)|
|Motto||Latin: Virtus Sola Nobilitat
(Virtue Alone Enobles)
|Colour(s)||Green and gold|
The campus consists of a girls high school for years 7−12 and a coeducational junior school for years K−6, sporting grounds, and boarding facilities for 137 students. The college has strong ties with Mazenod College, where many male students attending St Brigid's Primary School continue their education.
St Brigid's College was founded in 1929 by the Sisters of Mercy as an extension of the West Perth convent and college also named after Saint Brigid of Kildare. Construction of the buildings commenced in 1913 for Archibald and Maude Sanderson, and were used as a private day and boarding school for approximately 20 students.
In 1919, at the end of World War I, the buildings were sold to the Red Cross to be rented to the Repatriation Department to house sick and wounded soldiers. During this period the building was completed and oak trees from Windsor Castle were planted in the grounds.
In 1929, the building was let to the Perth Hospital as a convalescent home. Later in that same year, it was sold to the Sisters of Mercy for 9000 pounds. It was purchased by the Congregational Superior, Reverend Mother Brigid Watson. On 21 April 1929, Mother Teresa Rielly and seven Sisters took up residence with their first pupils − 35 boarders and 3 day students.
In 2005 St Brigid's College was entered in the Register of Heritage Places by the WA Heritage Council. 
The campus has been extended over its history as funds and space have become available. A Sisters Convent and Chapel was constructed in 1965 as an addition to the original building, which has been listed with the Heritage Council of Western Australia. This was followed in 1990 by the construction of a 157-person Boarding House to the rear of the campus.
The McAuley Wing was constructed in 1999 as a dedicated Technology, Science and Art building.
One of the College's additions is the Sister Mary Rose Fitness Centre, completed in 2002, which houses an indoor heated swimming pool, sprung dance floor and fitness equipment. The facility is available for paid use by the public. 
2012 heralded the completion of the new 'One World Centre', a $13 million building created on 4000 square feet of land which was once a road that separated the Junior School from the Middle and Senior Schools, Catherine Place. The One World Centre includes a new innovative library and resource space titled the Learning Plaza, student and public administration, staff offices and facilities as well as the Wandju room, a multi-purpose hall which uses the Noongar word for 'Welcome' as its namesake. 
In 2013, plans were announced in the 'Friends of St Brigid's College' magazine for a new addition to the College, an impressive performing Arts facility, the building of which will commence in 2014.
St Brigid's College is an accredited International Baccalaureate ‘World School’, Meeting the standards and practices of the Primary Years Programme and the Middle Years Programme. St Brigid's College is the only IB Catholic school in Western Australia and one of only a handful overall in the state to attain this status. 
St Brigid's contributes to the community through community service activities including school-wide projects such as fundraising and food drives on behalf of charities. Students in years 7 to 12 are also involved in a service-learning program called "Mercy In Action - Making A Difference", which encourages the spirit of mercy as espoused by Catherine McAuley, the founder of the Sisters of Mercy. This program requires students to complete a number of community service hours each year as part of their Religious Education study. Some of the suggested activities in Years 11 and 12 are blood donation, Red Cross soup patrol, peer mentoring and assisting community organisations.
As part of the service-learning component to St Brigid's College, each year a group of staff and students visit a Mercy Sisters outpost in Cambodia, having raised money and donations to contribute to communities there. In addition to this there is the Northwest Immersion trip, in which a group of staff and students visit communities in the North-West of Western Australia and donate time and charitable works.
The College houses are named after significant persons in the history of the College and the Sisters of Mercy:
- McAuley - blue - named after Venerable Catherine McAuley, founder of the Sisters of Mercy;
- Watson - red - named after Mother Bridget Watson, the Congregational Superior who purchased the original buildings from the Red Cross;
- Reilly - purple - named after Mother Teresa Reilly, who was the Mother of the original Sisters working at the school;
- Docherty - green - named after The Docherty family, who provided support for the boarding school, as well as establishing the expansive lawns which provide greenery to much of the campus;
- Shine - yellow - named after Sister Phillip Shine, noted for her contribution to the musical education of the students.
- O'Connor- orange- named after Catherine O'Connor
- Mazenod College, Western Australia - St Brigid's brother school
- List of schools in Perth, Western Australia
- List of schools in Australia
- List of boarding schools
- Sanderson, H.: "Lesmurdie: A Home in the Hills." The Nine Club, 1979
- Heritage Council of Western Australia (2006). "Heritage Council of Western Australia". Retrieved 2007-09-10.
- St Brigid's College, Lesmurdie: "Mercy In Action - Making A Difference" St Brigid's College, 2006
- St Brigid's College (2006). "About SBC - History - Mercy Sisters". Archived from the original on 2007-08-29. Retrieved 2007-09-10.