Primary school

St Mary's Church of England Primary School

  • Voluntary Controlled School
  • ages 3–11
  • Mixed
  • Church of England
  • Slough
  • SL1 2AR
Ofsted Good · inspected Jan 2016

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Results · 2024/25

Ranked 4,914 of 15,057 primaries in England · top 33%

Top % in England, by year
2015/16: top 63%63%2016/17: top 58%2017/18: top 53%2018/19: top 46%2022/23: top 65%2023/24: top 29%29% · 2023/242024/25: top 33%No exams

Against South EastArrows: South East rank change since 2018/19

Expected standard, RWM71% · South East 64%8/10 Above+18 pts
Higher standard, RWM3% · South East 7%2/10 Well below South East+9.1 pts
Reading score105 · South East 1063/10 Below
Maths score105 · South East 1055/10 Middle+9.9 pts
Show KS2 results by year

No exams 2019/20–21Not published 2021/22

Expected standard, RWM
2015/16: 49% · 84 pupils · South East 57%2016/17: 60% · 60 pupils · South East 65%2017/18: 66% · 59 pupils · South East 68%2018/19: 69% · 59 pupils · South East 68%2022/23: 56% · 86 pupils · South East 61%2023/24: 71% · 90 pupils · South East 62%2024/25: 71% · 87 pupils · South East 64%71%49%No exams
Higher standard, RWM
2015/16: 10% · 84 pupils · South East 5%2016/17: 7% · 60 pupils · South East 8%2017/18: 12% · 59 pupils · South East 10%2018/19: 3% · 59 pupils · South East 10%2022/23: 3% · 86 pupils · South East 7%2023/24: 4% · 90 pupils · South East 7%2024/25: 3% · 87 pupils · South East 7%12%3%No exams
Reading score
2015/16: 101 · 84 pupils · South East 1032016/17: 102 · 60 pupils · South East 1052017/18: 104 · 59 pupils · South East 1062018/19: 104 · 59 pupils · South East 1052022/23: 103 · 86 pupils · South East 1062023/24: 107 · 90 pupils · South East 1062024/25: 105 · 87 pupils · South East 106107101No exams
Maths score
2015/16: 102 · 84 pupils · South East 1032016/17: 103 · 60 pupils · South East 1042017/18: 105 · 59 pupils · South East 1052018/19: 105 · 59 pupils · South East 1052022/23: 103 · 86 pupils · South East 1042023/24: 106 · 90 pupils · South East 1042024/25: 105 · 87 pupils · South East 105106102No exams

Getting in · 2026

First-choice families who got in85.0%
85 of 100 who put it first2014 · 92.8%2026 · 85.0%
By preference
ChoiceAppliedOffered
1st10085
2nd314
3rd221

Last distance offered: London only

Inspections · 2006–2025

  1. 2006Good
  2. 2009Good
  3. 2013Requires improvement
  4. 2016Good
  5. 2019Remains Good
  6. 2025Ungraded visit

5 strong areas

  • Outcomes for pupils
  • Early years provision
  • Effectiveness of leadership and management
  • Personal development, behaviour and welfare
  • Quality of teaching, learning and assessment

0 weak areas

5 areas graded

Pupils · 2024/25

On roll · Jan 2026675
Free school meals (past 6 years)30.3%
First language not English65.9%
SEN support13.1%
EHC plan2.2%
Absence (sessions missed)6.1%
Persistently absent pupils16.9%

Girls 47.9%Boys 52.1%

99% full · 682 places

Parent View

Earlier survey (before Nov 2025) · as at 1 Sep 2025 · 85 responses (12.5% of pupils)

  • My child is happy at this school90.6% agree
  • My child feels safe at this school92.9% agree
  • The school makes sure its pupils are well behaved94.1% agree
  • My child has been bullied and the school dealt with the bullying quickly and effectively · 58.8% not applicable65.7% agree
  • The school makes me aware of what my child will learn during the year83.5% agree
  • When I have raised concerns with the school they have been dealt with properly · 29.4% not applicable83.3% agree
  • Does your child have special educational needs and/or disabilities (SEND)?18.8% yes
  • My child has SEND, and the school gives them the support they need to succeed · asked only of the 18.8% who said Yes above50% agree
  • The school has high expectations for my child78.8% agree
  • My child does well at this school88.2% agree
  • The school lets me know how my child is doing89.4% agree
  • There is a good range of subjects available to my child at this school85.9% agree
  • My child can take part in clubs and activities at this school92.9% agree
  • The school supports my child's wider personal development78.8% agree
  • I would recommend this school to another parent83.5% yes

Workforce · 2025/26

Pupils per teacher21.4
Pupils per adult10.3
  • Classroom teachers 26.3
  • Leadership 4
  • Teaching assistants 29.8
  • Other support 12.3

Teachers 30.3 FTE · Whole workforce 72.4 · 90 people

Financials · 2025/26

Income per pupil£6,716
Spend per pupil£6,856
Staff spend per pupil£5,545
Reserve per pupil£440
  • +£285,321revenue reserve
  • −£91,063in-year balance

Grants £6,883 · self-generated £133 · premises £314 per pupil