Isleworth and Syon School for Boys
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Isleworth and Syon School for Boys is a converter academy in Isleworth for boys aged 11 to 18. It has 951 pupils and room for 979. About 28 in every 100 pupils come from a low-income family, about the same as most schools in England. We give it 33 out of 100. That puts it below schools like it, ahead of 2% of the 50 schools most like it. Ofsted's last grade was good, back in 2023.
Ridgeway Road, Isleworth, TW7 5LJ020 8568 5791isleworthsyon.orgCo Headteacher Simon / Jo Fisher / Higginbottom headteacherAll details
What Ofsted found
Ofsted's last full inspection was on 14 November 2023, back when it gave schools one overall grade. Read the report on Ofsted's website.
Good overall.
Earlier inspections (1)
| Date | Type | Outcome |
|---|---|---|
| 12 May 2022 | Ungraded | School remains Good (Concerns) - S5 Next |
Results
GCSE results, summer 2025
167 pupils sat their GCSEs. Here is how they did against every state secondary in England.
All GCSE measures, year by year
| Measure | 2025 | 2024 | 2023 | 2022 | 2019 | 2018 | Hounslow | England |
|---|---|---|---|---|---|---|---|---|
| Pupils at the end of Year 11 | 167 | 210 | 175 | 203 | 161 | 170 | – | – |
| Average GCSE scoreAttainment 8 | 43.1 | 48.2 | 45.5 | 52.0 | 49.4 | 49.1 | 48.6 | 46.8 |
| Progress from age 11Progress 8 | – | +0.09 | -0.27 | +0.08 | -0.01 | +0.30 | – | – |
| Strong pass in English and mathsGrade 5+ in English and maths | 38% | 44% | 39% | 51% | 45% | 49% | 51% | 46% |
| Standard pass in English and mathsGrade 4+ in English and maths | 55% | 64% | 64% | 71% | 70% | 68% | 68% | 66% |
| Core subjects scoreEBacc average point score | 3.70 | 4.31 | 3.98 | 4.61 | 4.50 | 4.55 | 4.41 | 4.15 |
| Taking the core subjectsEBacc entry | 7% | 16% | 13% | 16% | 34% | 49% | 52% | 41% |
| Average GCSE score: low-income pupilsAttainment 8, disadvantaged | 39.3 | 42.2 | 39.8 | 47.2 | 47.0 | 43.7 | – | – |
| Average GCSE score: other pupilsAttainment 8, non-disadvantaged | 44.8 | 51.1 | 47.3 | 53.7 | 50.5 | 51.9 | – | – |
| Average GCSE score: pupils who started behindAttainment 8, low prior attainers | – | 28.7 | 30.2 | 37.2 | – | 34.5 | – | – |
| Average GCSE score: pupils who started aheadAttainment 8, high prior attainers | – | 64.8 | 60.4 | 69.2 | 60.0 | 62.6 | – | – |
Subjects
Results came out for 21 GCSE subjects in 2025. Each figure is the share of pupils who got a grade 5 or better, next to the average for state secondaries in England.
Subjects that did worse than the England average: Economics (26% here, 70% across England), Computer Science (22% here, 56% across England), Music (33% here, 61% across England), Art and Design (32% here, 58% across England).
The small number is how many pupils sat each subject. Subjects with fewer than six pupils aren't published.
Every subject against England, 2025
| Subject | Entries | Grades 9 to 7 | Grades 9 to 5 | Grades 9 to 4 | England 9 to 5 | Rank in England |
|---|---|---|---|---|---|---|
| English Language | 166 | 10% | 45% | 59% | 54% | 2,232 of 3,210 |
| Mathematics | 165 | 17% | 46% | 62% | 53% | 1,992 of 3,211 |
| English Literature | 164 | 12% | 43% | 64% | 58% | 2,546 of 3,202 |
| Statistics | 160 | 13% | 38% | 62% | 51% | 267 of 375 |
| Combined Science | 152 | 9% | 40% | 60% | 36% | 1,089 of 3,084 |
| Geography | 78 | 12% | 32% | 49% | 51% | 2,523 of 3,116 |
| History | 73 | 10% | 37% | 47% | 52% | 2,413 of 3,126 |
| Engineering | 61 | 7% | 20% | 33% | 46% | 40 of 51 |
| Business | 51 | 6% | 35% | 49% | 51% | 1,328 of 1,806 |
| Computer Science | 51 | 6% | 22% | 43% | 56% | 1,746 of 1,861 |
| Physical Education | 35 | 9% | 34% | 46% | 56% | 1,281 of 1,559 |
| Art and Design | 28 | 7% | 32% | 43% | 58% | 2,463 of 2,818 |
| Spanish | 24 | 17% | 50% | 71% | 54% | 1,153 of 1,941 |
| Economics | 19 | 5% | 26% | 68% | 70% | – |
| Drama | 19 | 26% | 47% | 74% | 60% | – |
| Music | 15 | 20% | 33% | 53% | 61% | – |
| Physics | 13 | 77% | 100% | 100% | 82% | – |
| Chemistry | 13 | 62% | 100% | 100% | 81% | – |
| Biology | 13 | 69% | 85% | 100% | 82% | – |
| Film Studies | 12 | 0% | 50% | 58% | 52% | – |
| French | 11 | 36% | 64% | 82% | 60% | – |
In combined science each pupil gets two grades and we count the lower one. Rankings only include state secondaries where 20 or more pupils sat the subject.
A level and sixth-form results, 2025
61 students finished sixth-form courses.
All sixth-form measures, year by year
| Measure | 2025 | 2024 | 2023 | 2022 | 2019 | 2018 |
|---|---|---|---|---|---|---|
| Students | 61 | 112 | 89 | 91 | 162 | 139 |
| Average A level points per entryA level APS per entry | 34.11 | 35.71 | 34.83 | 37.09 | 29.76 | 30.89 |
| Average A level grade | C+ | B- | C+ | B- | C | C |
| Best three A levelsBest 3 A levels APS | 34.00 | 37.06 | 35.63 | 37.32 | 30.67 | 31.14 |
| AAB or better in subjects universities likeAAB+ in two facilitating subjects | 9% | 20% | 26% | 29% | 16% | 18% |
| A level progressA level value added | +0.18 | +0.00 | – | – | -0.17 | -0.10 |
| Applied general courses: points per entry | 32.95 | 33.11 | 33.05 | 35.71 | – | – |
| T levels: points per entry | – | 34.64 | 41.09 | 38.08 | – | – |
| Stayed and finishedRetained and assessed | 95% | 96% | 100% | 96% | 89% | 96% |
A level subjects
11 A level subjects had results in 2025. Each figure is the share of students who got an A* to B, next to the average for state sixth forms in England. When only a handful of students take a subject, its figures jump around from year to year.
Strongest A levels
Every A level subject against England, 2025
A levels only. BTECs, T levels and other courses are in the table above. Subjects with fewer than five students aren't published.
Does every child do well here?
A good school does well by every child, not just on average. Each row compares two groups of pupils here. The grey marks show the same two groups across England. Every gap at this school is smaller than the gap across England. When a group has fewer than about ten pupils, its figures jump around a lot from year to year.
At GCSE, 2025
Low-income means the child has had free school meals at some point in the last six years. A group's figure isn't published when it has fewer than six pupils.
Getting a place
Open to all. There is no entrance test.
199 places were empty (16% of the total), so almost everyone who applies gets in. Pupil numbers have fallen by 9% since 2021/22, so places are getting easier to find.
Each council publishes its own figures on how many families applied and how far away the last child to get a place lived. We are adding councils one at a time. If you have a link to Hounslow council's admissions booklet, send it to us.
Who goes here
Who a school teaches matters. That is why our score compares it with schools that take in a similar mix of children, not with every school in the country.
The most common needs among pupils getting extra support: emotional and mental health (64), Autistic spectrum disorder (22), language and communications needs (22), Specific learning difficulty (16), Moderate learning difficulty (15), Other difficulty or disability (4).
How the mix of pupils has changed
| Census | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|---|
| Pupils on roll | 951 | 1,021 | 1,087 | 1,099 | 1,107 | 1,118 |
| Pupils from low-income familiesFree school meals | 28% | 27% | 26% | 26% | 23% | 21% |
| Pupils learning EnglishEnglish as an additional language | 58% | 60% | 61% | 63% | 65% | 66% |
| Pupils getting extra supportSEN support | – | 12% | 12% | 12% | 13% | 12% |
| Pupils with an EHC planEducation, health and care plans | – | 2% | 2% | 1% | 1% | 1% |
Attendance and behaviour
In 2024/25 pupils were in school 92.5% of the time. Across similar schools in England it was 91.4%.
Attendance year by year
| Measure | 2024/25 | 2023/24 | 2022/23 | 2021/22 | 2020/21 | 2018/19 | England |
|---|---|---|---|---|---|---|---|
| Sessions missedOverall absence | 7.6% | 7.8% | 8.1% | 7.0% | 4.2% | 4.9% | 8.6% |
| Missed with permissionAuthorised absence | 4.9% | 5.1% | 5.3% | 4.7% | 3.0% | 3.3% | – |
| Missed without permissionUnauthorised absence | 2.7% | 2.8% | 2.7% | 2.3% | 1.2% | 1.6% | – |
| Pupils missing a lot of schoolPersistent absence | 23.5% | 25.0% | 25.9% | 20.3% | 9.1% | 10.1% | 23.9% |
| SuspensionsSuspension rate | 13.6 | 14.7 | 13.7 | 8.7 | 10.3 | – | – |
| Permanent exclusionsPermanent exclusions | 0 | 0 | 0 | 0 | 0 | – | – |
What pupils do next
After GCSEs
Where the 175 pupils who left in 2022/23 were a year later.
Among pupils from low-income families it was 84%, compared with 93% for everyone else.
Earlier years
| Destination | 2022/23 leavers | 2021/22 leavers | 2020/21 leavers | 2019/20 leavers |
|---|---|---|---|---|
| Still in education, work or training | 91% | 94% | 97% | 95% |
| Education | 89% | 91% | 94% | 94% |
| Apprenticeship | 1% | 1% | 1% | 0% |
| Work | 1% | 3% | 1% | 1% |
| Not in education, work or training | 5% | 5% | 2% | 2% |
After sixth form
Where the 87 pupils who left in 2022/23 were a year later.
Where the ones heading for university went
Among students from low-income families, 71% went on to degree-level study or training.
Earlier years
| Destination | 2022/23 leavers | 2021/22 leavers | 2020/21 leavers | 2019/20 leavers |
|---|---|---|---|---|
| Still in education, work or training | 81% | 83% | 91% | – |
| Education | 60% | 69% | 74% | – |
| Apprenticeship | 1% | 0% | 0% | 3% |
| Work | 20% | 14% | 17% | – |
| Not in education, work or training | 10% | 8% | 7% | – |
Staff and money
From the government's count of school staff in November 2025 and the school's published accounts.
Money
From the academy accounts return, year to August 2025. The per-pupil figures are compared with other secondary schools in England that report their accounts the same way.
Reserves are the money left over at the end of the year, kept back for emergencies and big projects. Being in the red year after year is a warning sign. Very large reserves can mean money sitting in the bank instead of being spent on today's pupils. Academy figures are rounded to the nearest £1,000 and include a share of any money the trust holds centrally.
The area around the school
Crime figures come from police.uk. The police record each crime at the nearest of a fixed set of map points rather than the exact spot, so “within 500 m” is only rough. House prices are from HM Land Registry sales nearby over the last two years.
Nearby schools
The closest secondary schools, nearest first. Hover over a row to see it on the map.
| School | Type | Distance | Pupils | Ofsted | Score | |
|---|---|---|---|---|---|---|
| Nishkam School West London | Free school | 780 m | 1,491 | Outstanding 2024 | 96 | Compare |
| Bolder Academy | Free school | 0.7 miles | 909 | Good 2022 | 57 | Compare |
| The Green School for Girls | Academy | 0.7 miles | 872 | Good 2023 | 75 | Compare |
| The Green School for Boys | Free school | 0.8 miles | 721 | Good 2020 | 47 | Compare |
| Gumley House RC Convent School, FCJ | Academy | 0.9 miles | 1,013 | Good 2024 | 82 | Compare |
| Lift Kingsley | Academy | 1.0 miles | 971 | No overall grade 2025 | 64 | Compare |
| Lampton Academy | Academy | 1.2 miles | 1,528 | Outstanding 2024 | 82 | Compare |
| Heston Community School | Academy | 1.2 miles | 1,311 | Good 2022 | 71 | Compare |
Compared with schools like it
Our score compares Isleworth and Syon School for Boys with the 49 schools in England whose pupils are most like its own. We match on family income, how many children are learning English, special needs, the neighbourhood, the size of the school and how it admits pupils. Those 49 schools are dotted all over the country, so we don't list them. What matters is where this school sits among them.
Nearby schools with a similar mix of pupils that score higher
Of those 49 schools, these are within 25 km and score at least five points more than Isleworth and Syon School for Boys, nearest first. A school with the same kind of pupils and a higher score is the fairest sign that it gets more out of them.
| School | Type | Distance | Pupils | Ofsted | Score | |
|---|---|---|---|---|---|---|
| The Green School for Boys | Free school | 0.8 miles | 721 | Good 2020 | 47 | Compare |
| The Fulham Boys School | Free school | 6.1 miles | 822 | Good 2022 | 87 | Compare |
| Wimbledon College | Roman Catholic | 6.7 miles | 1,266 | Good 2023 | 89 | Compare |
| Coombe Boys' School | Academy | 7.2 miles | 1,007 | Good 2023 | 80 | Compare |
| Richard Challoner School | Academy | 7.4 miles | 1,079 | Outstanding 2022 | 96 | Compare |
| Southborough High School | Academy | 7.4 miles | 935 | Good 2023 | 74 | Compare |
| Marylebone Academy | Free school | 7.6 miles | 561 | Good 2022 | 54 | Compare |
| Rutlish School | Voluntary | 7.6 miles | 1,471 | No overall grade 2024 | 94 | Compare |
How the score was worked out
The score is out of 100. A 33 means that once everything below is added up, this school comes out ahead of 33% of secondary schools in England. Results bounce around from year to year, especially in small schools, so we also show a likely range: 25 to 44. That range is wide enough that the school could sit in the next band, so take the band as a rough guide rather than a verdict. Every part is judged against schools with a similar mix of pupils. For small schools we pull each part towards the group average, so one unusual year can't swing the score too far.
| What we looked at | How much it counts | Against schools like it | Effect on the score | Based on |
|---|---|---|---|---|
| Results over three years | 20% | in line | -0.01 | 2025, 2024 and 2023 results; 167 pupils |
| Ofsted inspection | 20% | in line | +0.02 | Ofsted grade, 2.8 years old |
| Progress pupils make | 20% | above | +0.07 | DfE progress measure; 167 pupils |
| Direction of travel over five years | 10% | well below | -0.11 | results and attendance falling year on year |
| Attendance and behaviour | 10% | in line | +0.03 | 2024/25; 882 pupils |
| Results, allowing for the mix of pupils | 10% | well below | -0.27 | Attainment relative to schools with a similar intake; 167 pupils |
| What pupils do next | 5% | in line | +0.00 | 175 pupils |
| What parents say | 0% | no data | – |
Worked out on 13 September 2026 (method v1). Read how the score works, including every weight and the checks we run. Think a number is wrong? Tell us.
Questions parents ask
Is Isleworth and Syon School for Boys a good school?
The figures are weak. Isleworth and Syon School for Boys scores 33 out of 100. That is below schools that take in a similar mix of pupils, and ahead of 2% of the 50 schools most like it in England. The score could fairly be anywhere from 25 to 44, so a few points either way between schools doesn't mean much. Its results have been slipping over the last five years.
What is Isleworth and Syon School for Boys's Ofsted rating?
Ofsted rated Isleworth and Syon School for Boys good at its last full inspection on 14 November 2023.
How good are Isleworth and Syon School for Boys's GCSE results?
In summer 2025, 38% of pupils got a grade 5 or better in both English and maths. Across England it was 46%. Its Attainment 8 score, which is the average grade across a pupil's best eight subjects times ten, was 43.1, against 46.8 for England. In each subject, pupils here finished about level with children across England who started secondary school at the same level.
How many pupils does Isleworth and Syon School for Boys have?
951 pupils aged 11 to 18 were on the roll in January 2026. It has 979 places, so it is 97% full. It is a boys' school.
Is Isleworth and Syon School for Boys oversubscribed?
Probably not. 199 places were empty in 2024/25 (16% of the total), so most families who apply get a place.
What is attendance like at Isleworth and Syon School for Boys?
Pupils were in school 92.5% of the time in 2024/25. Similar schools in England managed 91.4%. 23% of pupils missed at least a tenth of the year.
How big are the classes at Isleworth and Syon School for Boys?
The average class had 21.7 pupils in January 2026. Across England it was 22.8. 5% of classes had more than 30 pupils.
Does Isleworth and Syon School for Boys have a sixth form?
Yes. The average A level grade in 2025 was C+. 11 A level subjects had results in 2025; the full list is in the results section.
These answers come straight from the figures on this page and update when new data comes out.
Contact and details
- Address
- Ridgeway Road, Isleworth, TW7 5LJ
- Telephone
- 020 8568 5791
- Website
- www.isleworthsyon.org
- Headteacher
- Co Headteacher Simon / Jo Fisher / Higginbottom
- Type of school
- Converter academy (Academy converter, academies)
- Phase
- Secondary school, ages 11-18, with sixth form
- Gender
- Boys
- Religious character
- None
- Single-academy trust
- Isleworth and Syon School for Boys (1 schools)
- Local authority
- Hounslow
- Ward
- Osterley & Spring Grove
- Constituency
- Brentford and Isleworth
- Setting
- Urban: Nearer to a major town or city
- Opened
- 1 March 2012 (academy converter)
- URN
- 137940 · LAESTAB 3134500 · UKPRN 10036707
- Formerly
- Isleworth and Syon School for Boys
Recent changes
- New KS4 results for 2024/25
Where these figures come from
- School details: Department for Education, Get Information About Schools, refreshed daily (this page rebuilt 13 September 2026).
- Inspections: Ofsted management information, monthly; latest publication in our data 27 August 2026.
- GCSE results: DfE key stage 4 performance tables, 2024/25 final.
- Attendance: DfE pupil absence in schools in England, 2024/25 full year.
- Pupil characteristics: DfE school census, January 2026.
- Staff: DfE school workforce census, November 2025.
- Class sizes: DfE schools, pupils and their characteristics, January 2026.
- Pupil premium: DfE allocations and conditions of grant, 2026 to 2027.
- Money: DfE financial benchmarking and insights tool, academy accounts return 2024/25.
- A level subjects: DfE A level and other 16 to 18 results, subject entries and grades, 2024/25.
- Neighbourhood: police.uk street-level crime, HM Land Registry price paid data, NaPTAN bus stops, English Indices of Deprivation 2025.
- All under the Open Government Licence v3.0. Full list and update calendar.