Altrincham, Greater Manchester · Trafford
Altrincham Grammar School for Girls
Same 334/324 score as Altrincham Boys and Urmston, but its own catchment is a plain 8-mile radius rather than a defined postcode list.
AGGS opened in 1910 as a co-educational preparatory department, becoming a selective girls' grammar school after the 1944 Education Act. It shares the Trafford Consortium's GL Assessment test with Altrincham Boys, Sale, Stretford and Urmston, and its published qualifying score — 334 general, 324 for looked-after/Pupil Premium candidates — is numerically identical to Altrincham Boys' and Urmston's. Where it differs from its brother school is catchment: rather than a defined set of priority postcodes, AGGS draws a plain 8-mile radius from the school gate, with the precise boundary map available only in person at the school office rather than published online.
Key facts
- Gender
- girls
- Age range
- 11-18
- Region
- North West
- Local authority
- Trafford
- Established
- 1910
- DfE URN
- 137289
- Website
- https://aggs.bright-futures.co.uk/
Admissions
- Admissions authority
- The school sets its own test and criteria
- Entrance test board
- GL Assessment, shared with the Trafford Consortium (Altrincham Boys, Sale, Stretford, Urmston) on the same day.
- Test format
- Two papers of about an hour each, each covering verbal reasoning, non-verbal reasoning and mathematics combined, multiple-choice and machine-marked.
- Qualifying / pass mark
- A standardised score of 334 or above generally qualifies; looked-after children or Pupil Premium-eligible applicants qualify at 324-333 — identical to the published thresholds at Altrincham Grammar School for Boys and Urmston Grammar for the same cycle.
- Superselective?
- No
Its published qualifying score (334 general, 324 for looked-after/Pupil Premium) is numerically identical to Altrincham Boys' and Urmston's, so it isn't more selective than its known consortium partners on this measure. Qualifying-score data for Loreto, Sale, Stretford or Saint Ambrose wasn't part of this specific comparison, so this isn't a full picture across every Trafford-area selective school — just a confirmation it matches its closest, already-verified peers rather than exceeding them.
Catchment & priority criteria
An 8-mile radius from the school's Bowdon entrance, rather than a defined postcode list — the school states a detailed map is available for viewing at the school office, not published online.verify with school
No online postcode-level catchment map exists — the policy defines it only as an 8-mile radius with a detailed map available in person at the school office.
- Children with an EHCP or SEN statement naming the school
- Looked-after and previously looked-after children, regardless of address
- In-catchment Pupil Premium-eligible applicants
- In-catchment applicants with a sister who will attend at the time of admission
- In-catchment applicants generally, nearer first if oversubscribed
- Out-of-catchment Pupil Premium-eligible applicants, nearer first
- Out-of-catchment applicants with a sister who will attend, nearer first
- All other out-of-catchment applicants, nearer first
Results
| Year | Attainment 8 | GCSE 5+ Eng & Maths | Progress 8 | A*–A | A*–B |
|---|---|---|---|---|---|
| 2025 | 80.6 (Trafford average 57.9, England average 46.1) | 100.0% (Trafford average 63.9%, England average 45.4%) | Not calculated by DfE — no KS2 baseline data for this cohort nationally | 68% | 91% |
| A-level (549 entries): resolved from the school's own per-subject grade table after its summary table showed an internal arithmetic error. | |||||
| 2024 | 81.6 (Trafford average 58.3, England average 45.9) | 99.0% (Trafford average 66.4%, England average 45.9%) | +1.01 ('well above average'). The preceding year, 2022/23, scored +1.05, also 'well above average'. | 68% | 89% |
Ofsted
- Rating
- Outstanding
- Date
- 11 October 2022
- Report
- Read the full report
Sources
- 1. DfE Get Information About Schools — URN, status, gender, LA — https://www.get-information-schools.service.gov.uk/Establishments/Establishment/Details/137289
- 2. Determined Admissions Policy, entry September 2027 — https://aggs.bright-futures.co.uk/wp-content/uploads/2026/01/AGGS-Admission-Policy-2027.pdf
- 3. School's own September 2027 entry page — exam date, timeline — https://aggs.bright-futures.co.uk/admissions/september-2027-entry/
- 4. Trafford Consortium entrance test familiarisation guide — https://aggs.bright-futures.co.uk/wp-content/uploads/2023/07/Trafford-Familiarisation-Guide.pdf
- 5. School's own history page — founded 1910 — https://aggs.bright-futures.co.uk/our-school/school-history/
- 6. Ofsted report, inspected 11 October 2022 — https://reports.ofsted.gov.uk/provider/23/137289
- 7. DfE Compare School Performance — 2025 GCSE results — https://www.compare-school-performance.service.gov.uk/school/137289/altrincham-grammar-school-for-girls/secondary
- 8. DfE Compare School Performance — historic Progress 8 (2023, 2024) — https://www.compare-school-performance.service.gov.uk/school/137289/altrincham-grammar-school-for-girls/secondary/progress-measures-for-2023-and-2024
- 9. School's own 2025 A-level results page — https://aggs.bright-futures.co.uk/parents-carers/exam-results/a-level-2025/
Last updated 2026-08-30. Spotted something wrong? Tell us.