Because the school was privately owned for the first 70 or so years of its existence, there are few official records of its early years. The first mention of "St Margaret’s" is in 1898, when a newspaper advertisement appeared, announcing that Elizabeth Isabella Tulloch would be moving the school to "St Margaret’s, Oak Hill Park." Tulloch, the school's founder, was principal of the school, and its owner, for 44 years.
In 1928 Hilda Jean Copinger took over on Tulloch's retirement, with co-principal Margaret Macrae overseeing the academic side. The joint rule was formally dissolved in 1933.
Location
Since 1954 the school has one main building and two outside classrooms in Kidderpore Gardens in the residential part of Hampstead.