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Longdean School is a secondary academy in Hemel Hempstead, East of England. It has not yet been rated by students on y.school. Be the first to rate this academy and help other students and parents understand what the school experience is really like.
In terms of academic performance, Longdean School has a Progress 8 score of -0.29 (below the national average), an Attainment 8 score of 42.5, 63% of students achieving grade 4+ in English and Maths, an average A-Level grade of C+.
The school has a teacher turnover rate of 0.8%, 17% of pupils eligible for free school meals, an overall absence rate of 8.8%.
After leaving Longdean School, student destinations include 57% going on to university and 5% 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.
Longdean School has a Progress 8 score of -0.29, 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 42.5. Attainment 8 measures the average achievement of students across 8 qualifications including English, Maths, three EBacc subjects, and three open group qualifications.
63% of students at Longdean School achieved grade 4 or above in both English and Maths GCSEs.
Students at Longdean School achieve an average A-Level grade of C+. This metric covers all A-Level and equivalent qualifications taken at the school.
Longdean School has an overall absence rate of 8.8%. The national average for secondary schools is approximately 5.5%.
The teacher turnover rate at Longdean School is 0.8%. This measures the percentage of teachers who left the school in the past year.
17% of pupils are eligible for free school meals, which is used as a proxy for socioeconomic disadvantage.
30% of pupils receive SEN (Special Educational Needs) support or have an Education, Health and Care plan.
After leaving Longdean School, 57% go on to university and 5% enter apprenticeships.
Source: Department for Education, Ofsted. Data shown for context only — does not influence the Student Score.
Data last updated: May 2026
Crime Nearby
137/mo
Within ~1 mile (Police.uk)
Violent Crime
53/mo
39% of total
Air Quality
Good
NO₂: 9.6 µg/m³ · PM2.5: 7.3
Bus Stops
12
Within 500m
Source: Police.uk, DEFRA UK-Air, DfT NaPTAN. Based on the school's location — actual conditions may vary.
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Other schools in the Hemel Hempstead area
5.6
Average
/ 10
Data Score
Computed from 23 government data points. Not based on student reviews.
Source: Department for Education / Ofsted. Data shown for context only — does not influence the Student Score. Small schools may show extreme percentages due to small sample sizes.