Glenthorne High School, Sutton

Ofsted's report card from its 6 January 2026 inspection grades Glenthorne High School on 7 areas: 2 exceptional and 5 strong standard. Report cards replaced single-word judgements in November 2025, on a five-point scale from exceptional to urgent improvement.

Inclusion - Exceptional. "Leaders have created a highly inclusive culture that enables pupils to flourish in this school."

Personal development and wellbeing - Exceptional. "Leaders' exceptionally well-coordinated and personalised system of pastoral support helps to ensure that pupils' individual needs are identified and met."

Achievement - Strong standard. "Over time, pupils achieve consistently well at this school."

Attendance and behaviour - Strong standard. "Over time, pupils' attendance is consistently high, including for disadvantaged pupils."

Curriculum and teaching - Strong standard. "Leaders have devised a highly ambitious, well-sequenced curriculum."

Leadership and governance - Strong standard. "Leaders and governors provide high-quality oversight and direction."

Post 16 provision - Strong standard. "Students in the sixth form follow an ambitious and well-planned curriculum."

Safeguarding standards were met.

Ofsted's next steps for the school: "• Leaders and those responsible for governance should sustain the effectiveness of their work in areas that are currently having a transformational impact on pupils, including in inclusion and in work to develop pupils' personal development and wellbeing. They should continue to further strengthen other high-performing areas of the school's work so that these also have an equally positive impact on pupils' experiences in school".

From the headteacher's welcome: "Glenthorne Sixth Form offers a diverse, academic and creative curriculum in the context of a thriving community spirit. Our students are encouraged to persevere, to take responsibility for themselves and others, and to enjoy their learning. We are proud of the qualifications our young people achieve and most importantly, the high quality university courses and apprenticeships they go onto."

In 2026, pupils at Glenthorne High School averaged an Attainment 8 score of 63.6, the average grade across their best eight GCSEs. The average state school scored 62.3 in Sutton and 47 across England.

80% passed English and maths at grade 5 or above, against 72% in Sutton and 47% in England.

That is up from 61.6 in 2025.

Its most recent Progress 8 score, for 2024, was 0.75: pupils made well above average progress compared with pupils nationally who started secondary school at the same level. Progress 8 was not published for 2026.

Disadvantaged pupils averaged an Attainment 8 of 51.8, against 66.4 for other pupils at the school - a gap of 14.6 points.

Pupils sat GCSEs in 24 subjects; after English and maths, the most popular were Combined Science, Art and Design and History.

For September 2026 entry, 481 families put Glenthorne High School as their first choice and 2001 named it as one of their preferences, for 255 places offered. That is 1.9 first choices for every place. 274 families who put it first were not offered a place there.

The nearest other state secondary schools to Glenthorne High School are Greenshaw High School (0.8 miles, Good, Attainment 8 56.5); Carshalton Boys Sports College (1.2 miles, Good, Attainment 8 46.1); Harris Academy Morden (1.2 miles, Outstanding, Attainment 8 50.9); and Sutton Grammar School (1.2 miles, Good, selective, Attainment 8 82.6).

Glenthorne High School's 2026 results were higher than 3 of these 4 schools.

Glenthorne High School is one of 3 schools run by The Willow Learning Trust, an academy trust.

210 parents answered Ofsted's Parent View survey about Glenthorne High School (as of April 2026): 87% would recommend the school, 81% say their child is happy there and 47% of those with a view say bullying is dealt with well.

The strongest agreement was that pupils behave well (88%); the weakest, that the school deals with bullying well (among parents with a view) (47%).

Of the 260 pupils who finished Year 11 in 2023/24, 90% stayed in education or training for at least two terms, including 20% to a further education college, 3% to an apprenticeship and 1% into work.

Of the 155 students who left the sixth form in 2023/24, 74% went on to university or other higher education, 2% to apprenticeships and 11% into work. 26% went to one of the most selective third of universities.

13.2% of pupils are eligible for free school meals, well below the average state school (25%), and 27.1% speak English as an additional language, against 18.8% on average, according to the 2026 school census.

The largest ethnic groups are White British (36%), Asian (23%) and Mixed (9%).

In 2026, 148 pupils (8.4%) received SEN support and 80 (4.6%) had an education, health and care plan, against 16.2% and 4.6% at the average state school. The most common need among them is autism.

Glenthorne High School has a resourced provision for autism: 20 places, 22 pupils on roll.

The nearest railway station is Sutton Common Station, about 750 metres away (roughly a 9-minute walk).

6 bus stops are within a five-minute walk; the closest is Glenthorne High School, 140 metres away.

In 2024/25, Glenthorne High School issued 167 suspensions, 9.4 for every 100 pupils (the average state school: 6.3), and 2 permanent exclusions.

The primary schools closest to Glenthorne High School are Abbey Primary School (0.2 miles), Westbourne Primary School (0.6 miles), Brookfield Primary Academy (0.6 miles) and All Saints Benhilton CofE Primary School (0.7 miles). Admission does not depend on which primary a child attends unless the school's policy names feeder schools.