On 1 August 1950, the Dominican Sisters opened the first Catholic School in Rustenburg. St Margaret’s Convent, as it was then named, was situated on the corner of Smit and von Willeigh Streets in Rustenburg Town and had a grand total of 15 students. The school was registered by the Transvaal Education Department on 15 November 1950.

In 1961, the Dominican Sisters withdrew from Rustenburg, to be replaced by the Sisters of Charity of St Paul the Apostle who continued to grow the school in number and in excellence.