School profile Verified 18 August 2026

Buckinghamshire Private schools

St Mary's School

Packhorse Road, Gerrards Cross, SL9 8JQ

St Mary's School is a private secondary-stage school in Gerrards Cross, Buckinghamshire, with a published age range of 3-18.

Private school Girls Ages 3-18 Sixth form No boarders
Application ?
Apply direct to school
Age range
3-18
ISI ?
Likely to meet standards
Boarding ?
No boarders
Compare Official website Map

At a glance

Key facts

Sector
Private school
Gender
Girls only
Application ?
Apply direct to school
Age range
3-18
Boarding ?
No boarders
Route check
Independent schools do not use the local-authority grammar-school catchment model; check the school site for boarding, transport and eligibility rules.
ISI ?
Likely to meet standards

Overview

A happy child is a successful child: that simple proposition gives St Mary's School its emotional centre. Since 1872, the Gerrards Cross community has grown from Nursery and Reception through Prep, Senior House and Sixth Form while keeping girls known as individuals. Warmth is paired with an expectation that pupils will develop confidence, kindness and the judgement to make good choices.

Senior life places academic challenge beside creativity, leadership and pastoral care. Girls are encouraged to think for themselves, take sensible risks and respond constructively to difficulty. Achievement is therefore tied to personal growth and contribution beyond the classroom, rather than treated as a matter of marks alone.

Cedar House provides the Sixth Form setting, with A-level teaching joined by the two-year Ignite programme. Careers and higher-education guidance, leadership and co-curricular activity give the stage a purposeful bridge between school and adult life. The ambitions of the young women are central to that experience, with support designed to help them turn interests into informed next steps.

Entry points include Nursery and Reception, Year 3, Years 5 or 6 before the senior transition, Year 7 and Year 12; other-year applications are considered when places exist. Visits are part of the process, which considers a girl's strengths, interests and talents alongside assessment. The result is an all-through girls' education with a distinctly personal tone in Gerrards Cross.

Key points

Assessment route
Applications are made directly to the school. Check the school's own admissions pages for registration dates, entrance assessment stages, interviews, fees, scholarships and bursaries.
Places and demand
Published Year 7 place numbers and applicant-per-place data are not included in GIAS for this private-school seed profile.
Catchment
Private-school eligibility is not controlled by the local-authority grammar catchment model; check boarding, day-pupil, transport and any sibling or faith rules on the school site.
Results
1.8% grade 5+ in English and maths and 37.6 Attainment 8
Sixth form
Sixth form available with 0% AAB or better.

GCSE benchmark

Latest 2024/25 KS4 measures compared with Buckinghamshire and England.

School Local authority England
GCSE benchmark comparison Latest GCSE benchmark measures for St Mary's School, Buckinghamshire, and England. 0 50 100 Att. 8 5+ E&M EBacc APS EBacc %
Attainment 8
37.6
Grade 5+ English and maths
1.8%
EBacc APS
3.03
EBacc entry
0%

Attainment 8 trend

Recent published Attainment 8 scores compared with Buckinghamshire and England.

School Local authority England
Attainment 8 trend line Attainment 8 over time for St Mary's School, Buckinghamshire, and England. 70 56.7 43.3 30 21/22 22/23 23/24 24/25

School details

Sector
Private school
School type
Other independent school
Funding
Independent fee-paying
Application
Apply direct to school
Gender
Girls only
Age range
3-18
Headteacher
Mr Lars Fox
Pupil roll
391 pupils
Sixth form
Yes

Location and contact

Address

Address
Packhorse Road, Gerrards Cross, Buckinghamshire
Postcode
SL9 8JQ

School leadership

Headteacher
Mr Lars Fox

School contact

School phone
01753883370

Admissions contact

Admissions team
Admissions
Admissions phone
01753883370

Admissions

Application route
Apply direct to school
Age range
3-18
Gender
Girls only
Boarding
No boarders
Day fees
Check school fees page
Scholarships and bursaries
Check school site
Entrance details
Entrance assessment details are not part of the GIAS open data extract.
Admissions note
GIAS confirms the school type and age range; fees, scholarships, bursaries and entrance assessments should be checked on the school's own website.

GIAS confirms the school type and age range; fees, scholarships, bursaries and entrance assessments should be checked on the school's own website.

Independent schools do not use the local-authority grammar-school catchment model; check the school site for boarding, transport and eligibility rules.

Oversubscription and eligibility

Use the official admissions policy for the current priority order and eligibility rules.

Exam and test format

Entrance route and assessment

Entrance assessment details are not part of the GIAS open data extract.

Assessment route
Apply direct to school
Papers and stages
1 paper
Format
Mixed format

Papers and rounds

  1. Paper 1

    Year 7 entry and scholarship assessment (2027 entry)

    2026 Key Admission Dates: Year 7 2027 Friday 30 October 2026 Registration Deadline Friday 30 October 2026 Scholarship and Bursary Application Deadline Wednesday 4 November 2026 Art Portfolios Submitted Saturday 14 November 2026 Assessment Day Monday 16 November 2026 Scholarship Assessments Friday 5 December 2026 Outcome Letters Monday 1 March 2027 Acceptance Deadline DD 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MM 01 02 03 04 05 06 07 08 09 10 11 12 YYYY 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 Go Explore our Social Channels Follow the St Mary's Story Facebook Instagram LinkedIn

Application

  1. Year 7 registration deadline for 2027 entry

    Friday 30 October 2026

    Route: 11+ / Year 7; entry year: 2027.

  2. Year 7 scholarship and bursary application deadline for 2027 entry

    Friday 30 October 2026

    Route: 11+ / Year 7; entry year: 2027.

  3. Year 7 art portfolio submission deadline for 2027 entry

    Wednesday 4 November 2026

    Route: 11+ / Year 7; entry year: 2027.

  4. Year 7 assessment day for 2027 entry

    Saturday 14 November 2026

    Route: 11+ / Year 7; entry year: 2027.

  5. Year 7 scholarship assessments for 2027 entry

    Monday 16 November 2026

    Route: 11+ / Year 7; entry year: 2027.

  6. Year 7 outcome letters for 2027 entry

    5 December 2026

    Route: 11+ / Year 7; entry year: 2027.

  7. Year 7 acceptance deadline for 2027 entry

    Monday 1 March 2027

    Route: 11+ / Year 7; entry year: 2027.

How to apply

  1. 1

    Apply direct to the school

    Independent-school admissions are handled by the school rather than the local authority CAF.

    Check school admissions

Results

Attainment snapshot

Attainment 8 ?
37.6 Attainment 8
GCSE results
1.8% grade 4+ in English and maths
Grade 5+ English and maths ?
1.8% grade 5+ in English and maths
EBacc average point score ?
3.03 EBacc APS
A-level results
0% AAB or better
A-level average points
38.20 A-level points per entry

Inspection

Likely to meet standards

Latest inspection: 4 November 2024

Use the latest ISI report for inspection detail.

Quick summary

  • Latest ISI report: Non-Routine Inspections 2024 records an inspection beginning 4 November 2024. The report says the school was likely to meet the relevant standards for the proposed material change.

Similar schools and comparisons

Nearby schools families also consider

Local rivals appear first, followed by nearby alternatives where the journey and admissions route are still comparable.

Nearby schools with similar results

Closest comparable alternatives with a similar academic profile, so parents can weigh local fit and results together.

FAQ

Frequently asked questions

How does St Mary's School handle admissions?

St Mary's School handles applications directly. Check the school website for registration dates, entrance assessments, interviews, fees, scholarships and bursaries.

How do I apply to St Mary's School?

1. Apply direct to the school: Independent-school admissions are handled by the school rather than the local authority CAF.

When are the key dates for St Mary's School?

Year 7 registration deadline for 2027 entry: Friday 30 October 2026. Year 7 scholarship and bursary application deadline for 2027 entry: Friday 30 October 2026. Year 7 art portfolio submission deadline for 2027 entry: Wednesday 4 November 2026. Year 7 assessment day for 2027 entry: Saturday 14 November 2026. Year 7 scholarship assessments for 2027 entry: Monday 16 November 2026. Year 7 outcome letters for 2027 entry: 5 December 2026. Year 7 acceptance deadline for 2027 entry: Monday 1 March 2027

What does the latest inspection picture look like for St Mary's School?

St Mary's School is currently rated Likely to meet standards following the latest published inspection dated 4 November 2024.