Altrincham Grammar School for Girls 11+ Tuition
England's largest single-sex grammar school — 204 places, Trafford consortium GL Assessment, test date Monday 14 September 2026. Expert one-to-one preparation from Leading Tuition.
About Altrincham Grammar School for Girls
Altrincham Grammar School for Girls (AGGS) is a selective state grammar school located on Cavendish Road, Bowdon, Altrincham, WA14 2NL. With approximately 1,250 pupils on roll, it is widely recognised as the largest single-sex grammar school in England. The school holds an Outstanding judgement from Ofsted, most recently confirmed in October 2022, placing it among the highest-performing state secondary schools in the country.
AGGS offers a broad curriculum from Year 7 through to sixth form, with strong results at both GCSE and A-level. The school has a reputation for academic rigour combined with an active co-curricular programme, making it a highly sought-after destination for families across the Trafford area and beyond. Its published admissions number for Year 7 is 204 places, and the school is consistently oversubscribed by a significant margin.
As part of the Trafford Grammar School Consortium, AGGS uses the same entrance examination as Altrincham Grammar School for Boys, Sale Grammar School, Stretford Grammar School and Urmston Grammar School. This means families who wish to be considered for multiple Trafford consortium schools only need to register for and sit the test once, though each school has its own admissions criteria and oversubscription rules applied after the qualifying standard is met.
| Detail | Information |
|---|---|
| School name | Altrincham Grammar School for Girls (AGGS) |
| Type | State selective grammar — girls only, Year 7–13 |
| Location | Cavendish Road, Bowdon, Altrincham |
| Year 7 places | 204 |
| Entrance test | Trafford Consortium GL Assessment |
| Exam date (2026 entry) | 14 September 2026 |
| Test subjects | Verbal Reasoning, Non-Verbal Reasoning, Mathematics |
| Ofsted rating | Outstanding |
The Trafford Consortium 11+ Examination
The Trafford consortium 11+ entrance examination is produced and administered by GL Assessment. It consists of two papers, each approximately one hour in length, taken on the same day at the school. The two papers together assess three core skill areas: verbal reasoning, non-verbal reasoning and mathematics. Questions are multiple-choice and the papers are strictly timed, requiring both accuracy and good exam technique.
The standardised qualifying score set by the consortium is 334 or above. Achieving this score means a child is considered academically selective, but it does not guarantee a place at AGGS in particular. Because the school is oversubscribed, places are allocated in ranked order based on the oversubscription criteria published in the admissions policy, which give priority to looked-after children, pupils with relevant EHCPs, and then qualifying applicants by postcode area.
The entrance examination will take place on Monday 14 September 2026. Registration for the test opens at midday on Thursday 23 April 2026 and closes at midday on Friday 19 June 2026 via the Trafford GL consortium portal at traffordgl.applicaa.com. Families must also list AGGS on their Common Application Form (CAF) submitted to their home local authority by 31 October 2026. Results are communicated by email in mid-October, ahead of the CAF deadline.
What the AGGS 11+ Tests in Detail
Understanding exactly what the test assesses is the foundation of effective preparation. The GL Assessment format used by the Trafford consortium covers three broad areas:
Verbal Reasoning includes a wide range of question types: finding synonyms and antonyms, completing analogies, identifying the odd word out, solving word connections, missing-letter puzzles, number codes expressed through letters, and reading-comprehension-style inference questions. Strong vocabulary, logical thinking and fast processing speed are all essential. Many children find verbal reasoning the most demanding area to improve quickly, which is why early, consistent practice is important.
Non-Verbal Reasoning presents problems in visual and spatial form: identifying patterns in sequences, finding the odd figure out, completing grids, rotating shapes, identifying reflections and mirror images, and recognising figure analogies. This section tests spatial thinking and pattern recognition rather than curriculum knowledge, meaning targeted practice can deliver significant score improvements even for children who do not initially feel confident in this area.
Mathematics in the GL Assessment goes beyond straightforward arithmetic. Questions involve multi-step problems covering fractions, percentages, ratio, algebra (functional rather than algebraic notation), data interpretation, geometry, and word problems requiring careful reading. Children who have only covered early Year 6 curriculum content may find some topics unfamiliar, making it important to extend beyond the standard school syllabus during preparation.
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Book a Free ConsultationWhy AGGS Is So Competitive
Altrincham Grammar School for Girls attracts applicants from across Greater Manchester and beyond. Several factors drive the high level of competition. First, the school's Outstanding Ofsted judgement and exceptional GCSE and A-level outcomes are well-documented and widely reported. Second, because AGGS is a state-funded school with no fees, it offers an elite education at no direct cost, making it highly desirable for families across all income levels. Third, as the largest single-sex grammar in England, it has a national profile that attracts families who would not otherwise consider travelling to Altrincham.
In practical terms, this means that even children who achieve the 334 qualifying score may not receive an offer if they are not in a priority postcode area and if demand from higher-scoring or in-area pupils exhausts the 204 available places. Families from outside the priority postcodes who are serious about AGGS should aim for scores significantly above the qualifying threshold to give their child a strong competitive position. A tutor who understands the specific scoring distribution and postcode dynamics of AGGS admissions can help set realistic targets and a preparation plan calibrated to meet them.
How Leading Tuition Prepares Children for AGGS
At Leading Tuition, we work with families across Altrincham, Bowdon, Hale, Sale, Timperley, Urmston and the wider Trafford and Greater Manchester area to prepare children for the Trafford consortium test. Our preparation programmes are built around the specific GL Assessment format and are fully personalised to each child.
We begin every engagement with a diagnostic assessment that mirrors the actual test structure. This allows our tutors to identify your child's current performance level across verbal reasoning, non-verbal reasoning and mathematics, and to pinpoint the specific question types and topic areas where additional work will have the greatest impact. Rather than generic preparation, we build a programme that addresses real gaps and builds on genuine strengths.
Sessions focus on both knowledge and technique. Verbal reasoning preparation covers vocabulary expansion, logical rule-following and speed-building. Non-verbal reasoning work develops systematic pattern recognition and spatial reasoning. Mathematics sessions extend beyond the school curriculum to ensure children are confident with all GL Assessment question types including ratio, percentage, algebra and multi-step word problems.
As the test date approaches, we shift emphasis to timed full-paper practice under realistic exam conditions. This builds the stamina and confidence needed to sustain high performance across two one-hour papers. Tutors provide written feedback after every session, and parents receive regular progress summaries. We are also available to discuss results, next steps and strategy with parents throughout the preparation period.
Timetable and Key Dates for September 2026 Entry
Planning your child's preparation around the official admissions calendar is important. Here are the key dates for AGGS Year 7 entry in September 2026:
- Registration opens: Midday, Thursday 23 April 2026 (traffordgl.applicaa.com)
- Registration closes: Midday, Friday 19 June 2026
- Entrance examination: Monday 14 September 2026, held at AGGS
- Results issued: Mid-October 2026 (by email)
- CAF deadline: 31 October 2026 (submitted to home local authority)
- National Offer Day: 1 March 2027
We recommend starting tuition no later than January 2026 for September 2026 entry. Families who can start in Year 4 or early Year 5 will have the greatest flexibility in the pace and depth of preparation. Contact us to discuss the right start point for your child's current level.
Frequently Asked Questions
When should we start preparing for the AGGS 11+?
We recommend starting structured 11+ preparation in Year 4 or early Year 5. Altrincham Grammar School for Girls is one of the most competitive grammars in England, with 204 places attracting well over a thousand applicants each year. Starting early allows your child to build genuine fluency across verbal reasoning, non-verbal reasoning and mathematics at a pace that avoids last-minute pressure. A Year 5 September start is still very effective, provided practice is consistent and progressively more challenging. Starting in Year 6 is possible but leaves limited time to close meaningful gaps.
What is the AGGS qualifying score threshold?
The Trafford consortium standardised qualifying score is 334 or above. AGGS is consistently oversubscribed, so achieving the qualifying score alone does not guarantee a place. Offers are made first to looked-after children and those with an EHCP naming the school, then by oversubscription criteria including priority postcode areas. The higher your child scores above 334, the stronger their position in the ranked list.
What does the AGGS 11+ exam consist of?
The AGGS 11+ uses the Trafford consortium GL Assessment entrance examination, consisting of two papers each approximately one hour long. The papers assess verbal reasoning, non-verbal reasoning and mathematics skills. The test takes place on Monday 14 September 2026 at the school. Registration runs from midday 23 April 2026 to midday 19 June 2026 via traffordgl.applicaa.com.
Does AGGS give priority to specific postcodes?
Yes. After admitting looked-after children and EHCP pupils, AGGS gives priority to qualifying applicants in designated postcode areas (typically including WA14, WA15, WA13, M33 and M23). Families outside these postcodes can still gain a place if their child scores highly enough, but competition is particularly intense. Check the most recent AGGS admissions policy on the Trafford consortium website for the current full postcode list.
How does Leading Tuition prepare pupils for AGGS?
Leading Tuition offers personalised one-to-one tuition tailored to the Trafford GL Assessment format. Our tutors conduct an initial diagnostic to identify gaps in verbal reasoning, non-verbal reasoning and maths, then build a structured programme covering each skill area systematically. We use timed practice papers throughout preparation, gradually increasing to full exam conditions so your child is confident on test day. Tutors provide detailed written feedback after every session so parents can track progress clearly.
Is AGGS an all-girls school throughout?
Altrincham Grammar School for Girls is a girls-only school in Years 7 to 11. With approximately 1,250 pupils on roll, it is the largest single-sex grammar school in England. The school holds an Outstanding Ofsted judgement (most recently October 2022) and consistently ranks among the top performing state secondaries nationally.
What are the key application deadlines for AGGS 2026 entry?
Registration for the consortium test opens midday 23 April 2026 and closes midday 19 June 2026. The entrance examination is Monday 14 September 2026. Results are issued by mid-October 2026. The Common Application Form (CAF) must be submitted to your home local authority by 31 October 2026. National Offer Day is 1 March 2027.