- Founded in 1725 by a Chertsey merchant of the same name, the boys’ school launched provision for 25 girls a decade later, and moved to its present 13-acre site in 1819. In the intervening years it has functioned as a girls’ school; in September 2026, it will begin its transition back to coeducation with the ambition to become fully coeducational by 2030.
- The headmistress Debbie Picton describes this decision as one that will “enhance the educational opportunities ... and provide a structure that is more financially efficient and fit for the future and create a more inclusive community to reflect the modern world”.
- Facilities include a performing arts centre, a 340-seat auditorium and a sixth-form centre with conference meeting rooms.
- Old SWPS girls include Patricia Goddard, the longtime presenter of the talkshow Trisha.
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