Last updated 7 October 2026
School Guide verdict
Lewes Old Grammar School is a mixed independent secondary in Lewes, where good GCSE passes sit well above the national average, earning it a 4-star rating from School Guide. At its 2025 ISI inspection, the quality of academic and other achievements was judged good.
Top grades at GCSE (7-9) and top grades at A level (A*/A)
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At its 2025 ISI inspection, Lewes Old Grammar School was judged good for the quality of academic and other achievements.
At GCSE, 91.9% of pupils achieved good GCSE passes (5+ GCSEs grade 9-4 including English and maths), which is well above the national average of 38.9%.
There are 675 pupils on roll.
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