Glenthorne High School

State-Funded School

glenthorne-high-school-sutton-london

LondonRegion

SuttonLocal Authority

Sutton and CheamConstituency

SM3 9PSPostcode

8.9

Academic Performance

Previous Ofsted

About the School

Glenthorne High School is a state-funded secondary for pupils aged 11–18, located in Sutton, London.

Ofsted's most recent inspection is published as a report card rather than a single overall grade. It currently serves 1,754 pupils. Glenthorne High School is part of The Willow Learning Trust.

Ofsted Report Card

Inspected 6 Jan 2026 · published 23 Mar 2026

Current inspection

Safeguarding standards

Met

Evaluation areas

Inclusion
Exceptional
Curriculum and teaching
Strong standard
Achievement
Strong standard
Attendance and behaviour
Strong standard
Personal development and wellbeing
Exceptional
Post-16 provision
Strong standard
Leadership and governance
Strong standard

Previous Ofsted Rating

Subject Areas (previous framework)

Leadership &management

Good

Quality ofeducation

Good

Personaldevelopment

Good

Behaviour &attitudes

Outstanding

Sixth formprovision

Outstanding

Academic Performance

Well above average

Ranked against secondary schools in England · 2024-25

Attainment 8: 61.6
Grade 5+ in English & maths: 75.2%
EBacc average point score: 5.8

Ethnicity

White

47%

Asian

23%

Black

Mixed

Chinese

Any other group

Unclassified

Pupils

1,754

Total Pupils

49%Boys

51%Girls

Pupil Characteristics

Free school meals

13%

England average

27%

First language not English

27%

England average

22%

Young carers

England average

0%25%50%75%100%

DfE school census, January 2026.

Key Information

Phase: Secondary
Age range: 11 – 18
Deprivation band: Less deprived
Total pupils: 1,754
IDACI quintile: 2 (More deprived)
MAT name: The Willow Learning Trust

Inspection history

2 graded inspections published by Ofsted. Ungraded and monitoring visits are not shown.

Report published					Overall
15 Feb 2022	Good	Good	Good	Outstanding	Good
3 Aug 2012	Outstanding	Not reported in this inspection	Not reported in this inspection	Not reported in this inspection	Outstanding

A grey dot means Ofsted did not report that judgement in the inspection of the day — the sub-judgements shown here were introduced with the 2019 framework.

Ofsted data as at 31 December 2024. A school may have been inspected since, or had an ungraded visit that does not change its grade — check Ofsted’s own record.