Montgrove College, an independent girls' school teaching the Catholic faith, came to birth through the efforts of a group of parents and educators. They were keen to see schools with the PARED philosophy in the outer western suburbs of Sydney. There were already two PARED (Parents for Education) schools operating in Sydney's Hills District, where the recognition of parents as first educators was the mainspring of the philosophy.Their efforts were rewarded in 1999 with the founding of Orchard Hills Preparatory School out of which Montgrove College grew. Originally the Preparatory School catered for boys, but, in 2004, it became co-educational. Three years later the school's name was changed to Montgrove College with a girls Year 3 class, the boys progressing to the new boys school, Wollemi College, at Werrington. Montgrove College now offers a Kindergarten to Yr 12 education, maintaining as part of its structure a co-educational K-2 school at Orchard Hills.