Navigation
Ofsted: None

St Mary's School

verifiedData: DfE 2024/25–2025/26 · Ofsted
personMrs Patricia Adams
location_onGerrards Cross, SL9 8JQ
phone 1753883370
verified

Ofsted

Unrated

groups

Students

425

trending_up

Attainment 8

37.6

leaderboard

GCSE Rank

#38 in Buckinghamshire

#3,167 of 4,663 nationally

summarize

St Mary's School is a Other independent school school in Gerrards Cross, serving ages 3-18.

article

School Summary

St Mary's School is an other independent school in Gerrards Cross, Buckinghamshire, admitting pupils aged 3-18. It has a sixth form offering post-16 education. The school has approximately 439 pupils on roll.

In 2025, pupils achieved an Attainment 8 score of 37.6, placing the school #38 in Buckinghamshire and #3,167 of 4,663 nationally. 1.80% of pupils achieved grade 5 or above in English and Maths. 43.1% of all GCSE entries were graded 9–7.

The sixth form offers 24 A-level subjects. 67.6% of A-level entries were graded A*–B, with 23.0% at A*–A. A-level value added: +0.12 — students made above-average progress at sixth form.

verified Source: DfE 2024/25–2025/26 · Ofsted

Academic Performance

verified Data: UK Gov 2024/25
analytics

Secondary Performance Trends (KS4)

2025
Progress 8 Score

-

Attainment 8

37.6

Grade 5+ E&M

1.80%

Grade 9–7 (all GCSEs)43.1%
Entering EBacc0.00%
EBacc APS3.03
2024
Progress 8 Score

NP

vs National Avg
Attainment 8

38.7

Grade 5+ E&M

-%

Entering EBacc0.00%
EBacc APS2.9
2023
Progress 8 Score

NP

vs National Avg
Attainment 8

49.3

Grade 5+ E&M

-%

Entering EBacc0%
EBacc APS4.26
2022
Progress 8 Score

NP

vs National Avg
Attainment 8

49.5

Grade 5+ E&M

-%

Entering EBacc0%
EBacc APS4.21
2021
Progress 8 Score

-

Attainment 8

-

Grade 5+ E&M

-%

Entering EBacc0%
EBacc APS-
2019
Progress 8 Score

NP

vs National Avg
Attainment 8

49.2

Grade 5+ E&M

-%

Entering EBacc0%
EBacc APS4.27
2018
Progress 8 Score

NP

vs National Avg
Attainment 8

58.4

Grade 5+ E&M

-%

Entering EBacc41%
EBacc APS5.18
workspace_premium

Sixth Form (A-Level) Performance

A-level results for students who stayed in sixth form at this school. Value added measures how much progress students made relative to their GCSE starting point.

2025
A-Level Value Added

+0.12

vs expected from GCSEs

Pupils make above-average progress at A-level.

Avg Grade

B-

Grade Breakdown
Achieving A*8.1%
Achieving A*–A23.0%
Achieving A*–B67.6%
VA Banding Average
A-level subjects offered24
2024
A-Level Value Added

+0.02

vs expected from GCSEs

Pupils make broadly expected progress at A-level.

Avg Grade

B-

2023
Avg Grade

B+

2022
Avg Grade

B+

Source: DfE A Level and Other 16-18 Results

Ofsted History

search_off

No inspection data

We couldn't find any historical Ofsted records for this specific school location.

Data sources: School information from GIAS (DfE). Ofsted inspection data from Ofsted. Performance data from DfE Performance Tables. Parent View data from Ofsted Parent View. Census data from DfE Explore Education Statistics. Rankings are computed by SchoolsInfo.uk using public DfE data. Data updated annually. Last refresh: March 2026. How we calculate rankings →

Disclaimer: The information on this page is provided for general reference purposes only and is sourced from publicly available government datasets. SchoolsInfo.uk is an independent website and is not affiliated with, endorsed by, or acting on behalf of any school, local authority, Ofsted, or the Department for Education. Data may not reflect the current position of the school — always verify directly with the school or the relevant official body before making any decisions. School performance data relates to historical cohorts and may not be representative of current or future results. Rankings and composite scores are compiled by SchoolsInfo.uk and do not constitute an official government assessment. Nothing on this page constitutes professional advice.

0 Selected
Compare