Isleworth and Syon School for Boys, Isleworth

In 2026, pupils at Isleworth and Syon School for Boys averaged an Attainment 8 score of 46.2, the average grade across their best eight GCSEs. The average state school scored 48 in Hounslow and 47 across England.

44% passed English and maths at grade 5 or above, against 52% in Hounslow and 47% in England.

That is up from 43.1 in 2025.

Its most recent Progress 8 score, for 2024, was 0.09: pupils made about 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 43.2, against 47.7 for other pupils at the school - a gap of 4.5 points.

Pupils sat GCSEs in 23 subjects; after English and maths, the most popular were Statistics, Combined Science and History.

For September 2026 entry, 82 families put Isleworth and Syon School for Boys as their first choice and 318 named it as one of their preferences, for 134 places offered. It had fewer first-choice applications than places. Every family who put it first was offered a place there for 2026 entry.

The nearest other state secondary schools to Isleworth and Syon School for Boys are Nishkam School West London (0.5 miles, Outstanding, Attainment 8 64.5); Bolder Academy (0.7 miles, Good, Attainment 8 51.7); The Green School for Girls (0.7 miles, Good, Attainment 8 52.9); and The Green School for Boys (0.8 miles, Good, Attainment 8 45.4).

Isleworth and Syon School for Boys's 2026 results were higher than 1 of these 4 schools.

Of the 210 pupils who finished Year 11 in 2023/24, 94% stayed in education or training for at least two terms, including 26% to a further education college, 1% to an apprenticeship and 1% into work.

Of the 103 students who left the sixth form in 2023/24, 61% went on to university or other higher education, 3% to apprenticeships and 11% into work. 17% went to one of the most selective third of universities.

57.8% speak English as an additional language, against 18.8% on average, according to the 2026 school census.

The largest ethnic groups are Asian (39%), White British (16%) and other ethnic groups (14%).

In 2026, 120 pupils (12.6%) received SEN support and 24 (2.5%) 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 social, emotional and mental health needs.

Isleworth and Syon School for Boys had 75 teachers in 2026, one for every 14 pupils: more teachers per pupil than a typical secondary school, at about one for every 17.

The nearest railway station is Isleworth, about 690 metres away (roughly a 9-minute walk).

14 bus stops are within a five-minute walk; the closest is Ridgeway Road / Great West Road, 200 metres away.

In 2024/25, Isleworth and Syon School for Boys issued 139 suspensions, 13.6 for every 100 pupils (the average state school: 6.3), and no permanent exclusions.

The primary schools closest to Isleworth and Syon School for Boys are Spring Grove Primary School (0.6 miles), Marlborough Primary School (0.6 miles), The Smallberry Green Primary School (0.7 miles) and Isleworth Town Primary School (0.7 miles). Admission does not depend on which primary a child attends unless the school's policy names feeder schools.