11+ Tuition for Aylesbury Grammar School
Specialist preparation for AGS from our High Wycombe centre, for the GL Assessment Bucks Secondary Transfer Test (TBGS).
Aylesbury Grammar School is a boys’ grammar school in Aylesbury, Buckinghamshire (ages 11–18). Its latest Ofsted outcome is Outstanding (2022). In 2024/25 it recorded a GCSE Attainment 8 of 74.5, with 95.2% of pupils achieving grade 5 or above in English and maths (Department for Education). About 186 pupils join Year 7 each year, selected through The Buckinghamshire Grammar Schools (qualifying score 121 (standardised)).
How do you get into AGS?
Aylesbury Grammar School is a boys’ grammar school in Aylesbury, Buckinghamshire, for ages 11–18. Competition for places is strong: only 186 children are admitted to Year 7 each year, selected through the The Buckinghamshire Grammar Schools. Because places are decided mainly on the test score, focused preparation makes a real difference.
Think Smart Academy has been preparing children for the 11+ for over a decade. Our High Wycombe centre prepares AGS applicants for the Bucks Secondary Transfer Test. We teach Maths, English, Verbal Reasoning and Non-Verbal Reasoning in separate sessions rather than rushed combined lessons, and track progress with termly mock exams and parent reports. Classes are capped at eight students, and every child starts with a free diagnostic assessment so we can see where they need the most work.
- Founded 1598 by a bequest from Sir Henry Lee of Ditchley — one of England’s oldest grammar schools.
- Boys’ selective grammar with a sixth form; Ofsted Outstanding in all areas (2022).
- GCSE Attainment 8 of 74.5 (2024/25), far above the England average.
- Sibling cross-priority with partner girls’ grammar Aylesbury High School.
AGS at a Glance
- Type
- Boys grammar, ages 11–18
- Ofsted
- Outstanding (2022) (report)
- GCSE Attainment 8 (2024/25)
- 74.5 · DfE
- Grade 5+ in English & maths (2024/25)
- 95.2% · DfE
- Year 7 places
- 186 (Year 7 PAN 186 (September 2027 determined admissions policy).)
- Entrance test
- GL Assessment, Bucks Secondary Transfer Test (TBGS)
- Qualifying score
- 121 (standardised)
How does the AGS 11+ test work, and how are places allocated?
The Secondary Transfer Test (STT) assesses verbal reasoning, non-verbal reasoning and mathematics across two papers of about 60 minutes each, administered by Buckinghamshire Council for all Bucks grammar schools.
Qualifying score: A standardised Secondary Transfer Test Score of 121 or more automatically qualifies a child for a Buckinghamshire grammar school place.
How AGS allocates places: A catchment-area grammar (qualifying score 121). Priority order: looked-after children; up to 6 Pupil-Premium boys scoring 115–120; catchment Pupil-Premium boys; siblings of AGS boys; siblings of Aylesbury High girls; siblings of former AGS boys; qualified staff children; exceptional medical/social need; catchment boys; all other boys. Distance tie-breaker measured to the Walton Road main gate.
September 2027 entry: key dates
- Registration
- Opens 10:00 on Fri 1 May 2026, deadline 15:00 on Tue 2 June 2026
- Test date
- 8 and 10 September 2026 (practice on the 8th, main test on the 10th)
Frequently Asked Questions: AGS 11+ Preparation
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We’ve written a detailed, regularly-updated guide covering catchment, oversubscription criteria, results data and a preparation timeline.
Read the AGS guide →Compare AGS with another school
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Sources
School data on this page is taken from authoritative sources, last verified 22 May 2026: Ofsted (latest inspection report); the Department for Education’s Compare school and college performance service (GCSE 2024/25); and the school’s own admissions arrangements. A-level figures are the school’s published 2025 results (see the A-level section above for the exact source). Progress 8 is not shown because the DfE cannot calculate it for 2024/25 (no Key Stage 2 baseline after Covid-19).
