School guide
Altrincham Grammar School for Boys
Marlborough Road, Bowdon, WA14 2RS
Latest Ofsted
OutstandingWhat to know
Draft previewAGSB is the natural boys' counterpart to AGGS — academically intense, well-resourced, and with a sixth form that consistently sends pupils to Russell Group universities and Oxbridge. Sport has real weight here alongside academics, and the school culture rewards boys who like structure and clear expectations. As with any selective school, the 11+ itself is the main hurdle: competition for places is fierce, and families should prepare their son for both the test and the pace of life once he's in.
The essentials
Facts that help you decide
Ofsted rating
OutstandingGetting a place
Competitive
Progress 8
0.88
Attainment 8
71.6
Attendance
97%
PAN
200
School size
1350 pupils
Age range
11–18
Sixth form
Yes
Gender
Boys
Entry type
Grammar (11+)
Admissions
Can my child get a place?
The rules, recent outcomes and context that matter when judging your chances.
2026 entry – actual outcomes
Admission outcome
Applicants scoring 373 or above received offers.
217 places allocated in 2026.
Performance
How do pupils perform here?
A plain-English view of the school's results, trends and Trafford context before you dive into the full data.
Consistently improving
Performance has improved steadily over recent years.
In 2024/25, pupils achieved an Attainment 8 score of 78.5, above the national average of 46. Progress 8 was not calculated nationally for 2024/25. Overall absence stood at 4.51%. 75% of leavers progressed to higher education.
Strengths
- Strong GCSE attainment. Attainment 8 score of 78.5 is above the national average of 46.
- Above-average progression into higher education. 75% of leavers progressed to higher education.
- Excellent sixth-form outcomes. Average A Level grade of A-.
- Consistent academic performance. Progress 8 has remained positive in every year on record.
Watch Points
No significant performance concerns identified from the available data.
Based on official Department for Education datasets. Latest update: 2024/25. Not available nationally: Progress 8 for 2024/25, Exam performance data for 2020/21 (Covid-19 disruption).
Ofsted
What does Ofsted say?
The latest inspection judgement, what has changed and the fuller history when you need it.
Current Ofsted Status
- Latest report published
- 10 November 2022
- Safeguarding
- Effective
- Category of concern
- None
Formal monitoring
No serious concerns are currently flagged by Ofsted.
School life
What's it actually like day to day?
The practical details and everyday experience that official performance data can't tell you.
Altrincham Grammar School for Boys is a boys secondary school for pupils aged 11–18. It has a sixth form for post-16 study. Facilities on site include Sixth-form centre, Sports hall, Music school, Science labs. A school uniform is required.
Uniform
A school uniform is required.
Holiday & after-school support
Sponsored partnerVisit
Open days
Check the event details below, then use the school's own website for booking information where required.
Saturday 28 September 2024
Whole-school open morning
Tours, subject taster sessions and a headteacher address.
Latest
News
This term
AGSB rowing crew wins regional regatta
The senior rowing crew took first place at a regional schools regatta.
Keep exploring
Similar schools
Common questions
Parent questions
Is AGSB difficult to get into?+
Yes — it is one of the most competitive grammar schools in the borough, with places offered on 11+ performance.
Does it have a sixth form?+
Yes, with strong progression to competitive universities including Oxbridge.
Your next step
What should you do next?
Take the next step in your decision, whichever feels right for where you are.