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Stratford, London
School 21 is an all-through free school in Stratford, London.
Government data shown for the 2024/25 academic year
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School 21 is an all-through free school in Stratford, London. It has not yet been rated by students on y.school. Be the first to rate this free school and help other students and parents understand what the school experience is really like.
In terms of academic performance, School 21 has a Progress 8 score of -0.05 (below the national average), an Attainment 8 score of 45.9, 68% of students achieving grade 4+ in English and Maths, 64% of pupils meeting the expected standard in reading, writing, and maths at KS2, an average A-Level grade of C+.
The school has 517 pupils on roll, a teacher turnover rate of 14.7%, 37% of pupils eligible for free school meals, an overall absence rate of 7.4%.
After leaving School 21, student destinations include 63% going on to university and 3% entering apprenticeships.
All student scores on y.school are calculated from anonymous ratings using a transparent, deterministic methodology. Scores are freshness-weighted (18-month half-life) and include confidence tiers based on sample size, diversity, and consistency. For full details, see the y.school methodology.
Profile completeness: 5 of 8 data domains · Good coverage
5.9
Average
/ 10
Data Score
Computed from 26 government data points. Not based on student reviews.
Source: DfE / Ofsted · context onlyGovernment data is shown for context and does not influence the student-review Student Score. Small schools can show extreme percentages from small sample sizes.
Latest government data shown is for the 2024/25 academic year; some figures cover earlier years.
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School 21 has a Progress 8 score of -0.05, which is below the national average of 0. Progress 8 measures how much progress students make between the end of Key Stage 2 and their GCSE results, compared to students with similar starting points nationally.
The school's Attainment 8 score is 45.9. Attainment 8 measures the average achievement of students across 8 qualifications including English, Maths, three EBacc subjects, and three open group qualifications.
68% of students at School 21 achieved grade 4 or above in both English and Maths GCSEs.
At School 21, 64% of pupils met the expected standard in reading, writing, and maths combined at the end of Key Stage 2.
75% met the expected standard in reading and 75% in maths.
Students at School 21 achieve an average A-Level grade of C+. This metric covers all A-Level and equivalent qualifications taken at the school.
School 21 has an overall absence rate of 7.4%. The national average for primary schools was approximately 6.0% (DfE, 2023/24).
The teacher turnover rate at School 21 is 14.7%. This measures the percentage of teachers who left the school in the past year.
School 21 has 517 pupils on roll.
37% of pupils are eligible for free school meals, which is used as a proxy for socioeconomic disadvantage.
7% of pupils receive SEN (Special Educational Needs) support or have an Education, Health and Care plan.
Based on the latest government data. Every child is different — use this as a starting point, not a verdict.
In context — vs similar-intake schools
Above par for its intakeSchool 21 is in the upper half for Progress 8 among schools with a similar intake (34–97% of pupils eligible for free school meals).
Compared with 697 schools nationally that have a similar share of disadvantaged pupils (34–97% of pupils eligible for free school meals). Raw league-table positions are heavily shaped by intake; this comparison isolates how a school performs relative to others facing similar circumstances. Progress 8 already accounts for prior attainment. Source: Department for Education.
See the schools that most outperform their intakeSchools like this one
Matched on the share of disadvantaged pupils plus special-needs, English-as-an-additional-language and school size — so you can compare like with like, not just by postcode.
National percentiles (100 = best) for the area around the school · 5/5 measures · Police.uk, DEFRA, NaPTAN, DfT STATS19, MHCLG IoD 2025.
Other schools in the Stratford area
After leaving School 21, 63% go on to university and 3% enter apprenticeships.