Herschel Grammar School Sixth Form Entry Requirements

Herschel Grammar School is a co-educational selective academy in Slough, Berkshire (URN 137726) whose sixth form admits 160 students to Year 12, at least 10 of them from other schools. Entry is by GCSE grades alone: five passes at grades 9-5, grade 5 in Mathematics and in English Language or Literature, and an average point score of at least 5.5 across every GCSE taken. There is no 16+ entrance test.

That last condition decides most applications, and it is the one that none of the pages ranking for this search in August 2026 states in full. The school publishes the number inside a PDF; the guides that rank alongside it say only that there is "a minimum average GCSE points score". This page gives the figure, shows the arithmetic on real grade sets, and separates what applies at 16+ from what applies at 11+ — because at Herschel those two things are genuinely different, and the difference decides whether a family living six miles away should bother applying.

What GCSE grades does Herschel require for Year 12?

Herschel's Minimum Entry Requirements for 2026/2027, dated November 2025, sets out four conditions that every applicant meets or does not. They are cumulative. Clearing three of them is not a partial pass.

Source: Herschel Grammar School, General Entry Requirements 2026-2027.

The fourth condition is the one worth reading twice. It runs "across all GCSE subjects", not across your best five and not across the subjects you intend to continue. A candidate who clears the first three conditions comfortably can still fail on the fourth, and that is the failure mode nobody warns them about.

How the GCSE average point score is worked out

The calculation is deliberately simple: add the numerical grade for every GCSE you sat, then divide by the number of GCSEs. Herschel's own worked example takes a candidate with grade 8 English Language, grade 5 English Literature, grade 6 Mathematics, grade 6 Biology, grade 9 Chemistry, grade 7 Physics, grade 8 History, grade 9 French, grade 4 Business and grade 6 Physical Education. That totals 68 points across 10 subjects — an average point score of 6.8.

Notice what that example quietly demonstrates. It includes a grade 4. A single weak grade does not disqualify anyone, because the average absorbs it. What disqualifies people is a spread of middling grades with no strong ones to lift the mean. The two cases below are our own arithmetic applied to Herschel's published rule, and they show where the line actually falls.

Source: rows two and three are our own calculations using the method set out in Herschel's General Entry Requirements 2026-2027; row one is the school's published example.

The "solid but flat" candidate is the instructive one. On any ordinary reading of the entry criteria that student qualifies: five passes, yes; grade 5 Maths, yes; grade 5 English, yes. The average point score condition removes them anyway. If your child is tracking a band of grade 5s with one or two 6s, the arithmetic matters more than the headline requirement, and it is worth doing on mock results in December rather than discovering it on results day.

What a fourth A Level costs at Herschel

Herschel operates a second, higher threshold that none of the guides ranking for this query mention. To enrol on a four A Level programme, the school requires a GCSE average point score of at least 6.8 across all subjects. That is a materially different student from the one who clears 5.5.

The gap between the two numbers is wide. Clearing 5.5 means roughly a spread of grade 5s and 6s. Clearing 6.8 means a spread of 7s with strong grades on top — which is why Herschel's own worked example, a genuinely strong grade set, lands exactly on 6.8 rather than above it. Treat that example as the boundary case it is.

The fourth subject is also constrained by what it can be. Further Mathematics at Herschel must be taken as the fourth subject and is available only to students who have also chosen A Level Mathematics, and it requires grade 8 in GCSE Maths at Higher tier. So the common ambition — Maths, Further Maths, Physics and one more — needs the grade 8 in Maths, the grade 7 in Physics, the grade 7 in Maths that A Level Physics separately demands, and the higher average overall. Any one of those missing and the programme is three subjects.

Which A Levels need which GCSE grades — and where two Herschel documents disagree

Beyond the general conditions, every A Level carries its own GCSE requirement. Herschel publishes seventeen subjects plus the Extended Project Qualification. The demanding ones are worth knowing early, because they are decided by GCSE option choices made in Year 9.

Source: Herschel Grammar School, Summary of Subject-Specific Entry Requirements for Entry 2026.

Two things about that document deserve saying plainly, because a parent comparing versions will hit both.

First, the school does not permit Business and Economics as a subject combination. That is a hard rule stated in a footnote, not a preference, and it catches students who assume the two are complementary.

Second, Herschel's two published statements of the subject criteria do not match each other. The Course Information Booklet for entry in 2026 gives the Psychology requirement as grade 6 in Maths, grade 6 in English Language or Literature, and grade 6 in Biology. The separate summary sheet, linked from the same page of the school's website, adds an alternative: grade 6 in Biology or 6-6 in Combined Science. A student who took Combined Science reads one document and is excluded, reads the other and is not.

The same summary sheet carries a dating error on its cover, which reads "for Entry 2026 (at November 2026)" while the school's own website labels the identical file "at Nov 2025". On the balance of the evidence the summary sheet is the later document and the more permissive reading is the operative one — but neither of us is the admissions office. If Combined Science is your route into Psychology, email the sixth form admissions address on the school's website and get the answer in writing before the January deadline. Do not assume.

Is there a test or interview at 16+?

Herschel does not set a 16+ entrance examination and does not interview candidates as a selection device. The determined admissions arrangements are explicit that the minimum requirements rest on three things only: an average point score, minimum grades in best English and Mathematics, and subject-specific grades for the A Levels chosen. Nothing else is assessed.

What does happen is a reference and a conversation. External applicants are told that following receipt of the application and reference they "may be invited for a post-16 discussion"; the school's timeline shows successful external applicants invited to a discussion morning before the Easter break. Internal applicants have a short discussion with sixth form staff in February. Neither is a hurdle in the way an interview at a selective independent school is a hurdle — the offer that follows is conditional on grades, and grades alone decide whether it converts.

Source: Herschel Grammar School, Timeline for applications to join the Sixth Form in September 2026. The school notes these timings may be subject to change.

That timeline is the school's published schedule for the September 2026 intake, whose cycle closed with the Enrolment Day on Thursday 20 August 2026. Herschel republishes the document each autumn, so treat the pattern of dates as the reliable part and confirm the exact ones for your own year of entry against the school's current timeline.

Two features of that calendar are worth planning around. The deadline is late January, before most schools have finished processing mock results and roughly seven months before the grades that decide the outcome exist. And external applicants wait until mid-May for a conditional offer, months after internal applicants have theirs. If you are applying from outside, budget for a long silence.

The Enrolment Day date lines up with the national calendar rather than with anything Herschel controls. GCSE results for the June 2026 series reach centres from 19 August 2026 and are released to students on 20 August 2026, per the JCQ dates published in AQA's key dates calendar. A Level results for the same series went to students on 13 August 2026. Herschel enrols on the GCSE date, not the A Level one.

How many Year 12 places are there, and how many go to outsiders?

The published admission number for Year 12 is 160. The published admission number for students admitted from outside the school is 10 — and Herschel states in the same sentence that this "is a minimum number", which is the opposite of how a published admission number normally reads.

The mechanism behind that wording matters. Herschel's governors hold an explicit power to admit above the planned admission number in order to ensure the minimum target of 160 students in Year 12 is reached. Year 12 is the point at which some of the school's own Year 11 cohort leaves for other sixth forms, colleges or apprenticeships. Every departure opens a seat, and the governors have written themselves the authority to fill it from outside. So the external intake is a floor of 10 that flexes upwards, not a ceiling of 10 that turns applicants away.

If external applicants do exceed the places available, the tie-break is short: looked-after and previously looked-after children who meet the entry requirements come first, then applicants who meet the subject requirements for the courses with space remaining, ranked by GCSE average point score. That is the third place on this page where the average point score decides something. It is the number Herschel runs its sixth form on.

Does the four-mile catchment apply at 16+?

Herschel is one of four schools in the Slough Consortium of Grammar Schools, alongside Langley Grammar School, St Bernard's Catholic Grammar School and Upton Court Grammar School. The consortium exists to coordinate Year 7 entry through a common 11+ examination. Its rules are strict, geographic, and widely known locally — which is exactly why they get carried across to 16+ by mistake.

They do not carry across. The two sets of criteria share almost nothing.

Source: Herschel Grammar School, Determined Admissions Arrangements, September 2027 Entry.

The practical consequence is straightforward. A family in Windsor, Iver or Farnham Royal who ruled Herschel out at 11+ because of the four-mile line has no distance obstacle at 16+. Nothing in the Year 12 criteria measures where you live. What replaces geography is arithmetic, and the arithmetic is harder to argue with — but it is at least entirely within a student's control, which the distance rule never was.

One restriction does apply in the other direction. Students must come directly into the sixth form from Year 11; no student is admitted to repeat or restart Year 12. A gap year between GCSEs and A Levels closes this route, as does a year begun elsewhere.

Two Herschel admissions policies are online. Only one governs

A search for Herschel's sixth form entry requirements in August 2026 returns, on the first page, a Herschel admissions policy hosted by Slough Borough Council. It is a real document, correctly attributed, and every sixth-form number in it is wrong.

Sources: the council-hosted Herschel admissions policy, an appendix to the Secondary Schools Admissions Report at the Slough Admissions Forum of 22 January 2009, and Herschel's determined admissions arrangements for September 2027 entry.

The 2027 determined admissions arrangements govern. The council document is an archived committee paper, not a live policy, and nothing on the page hosting it says so. We are flagging it because it ranks, because it looks official, and because a parent who plans around 30 external places and a headteacher's letter will prepare for the wrong process. If a source you are relying on mentions 250 sixth form places at Herschel, it is quoting a paper from 2009.

How the other three Slough Consortium sixth forms compare

Applicants to Herschel are almost always weighing the other consortium schools at the same time, and one assumption is worth dispatching before it costs anyone an application. All four are co-educational. Herschel is not a single-sex school with a mixed sixth form, and neither is any of its neighbours, so the argument that 16+ is the only route in for one sex — true at several English grammar schools — does not apply anywhere in Slough.

Source: Department for Education, Get Information About Schools, records checked establishment by establishment. All four are recorded as Selective, age range 11 to 18, with an official sixth form.

Every one of those schools is running above its recorded capacity, Herschel by the widest margin relative to size, at 1,062 pupils against a capacity of 900. That is context for the governors' discretion described above rather than an argument against applying: a school already over capacity at 11 to 16 still holds a Year 12 target it is obliged to reach. The Slough grammar school arrangements at 11+ are shared across the consortium, but the sixth form criteria are not — each of the four publishes its own, and none can be inferred from Herschel's.

If your comparison started at 11+, our guides to Langley Grammar School, Upton Court Grammar School and St Bernard's Catholic Grammar School cover the consortium test and the separate faith criteria that apply at St Bernard's.

What happens if you miss the grades, or apply late

Herschel's public position on late applicants is unusually direct, and it is worth quoting rather than paraphrasing. The school's sixth form admissions page tells anyone who has not already applied that it is "unlikely to able to accommodate you in Year 12", while still offering an email route on results day for those who want to try. It also warns that the admissions inbox is not monitored until 19 August, the day before results reach students.

If you have an offer and miss the grades, the position is more hopeful. Enrolment is based on exam results, and the school's own booklet tells applicants that if the required grades do not materialise, the choices available will be discussed on GCSE Results Day. In practice that means a conversation about dropping to three subjects, changing one subject for another whose GCSE requirement you did meet, or in some cases a subject whose criteria you cleared through Combined Science rather than a separate science.

There is a hard stop on all of it. No student is admitted to Year 12 after 15 school days from the beginning of the autumn term, defined as the first day of school for students. Applicants who meet the requirements sit on a waiting list until that date and then no longer. Late September is not a window; it is the closing of one.

Two further constraints are worth knowing before you build a plan around a particular set of A Levels. Places on individual courses are subject to availability, the school gives no guarantee of preferred course choices, and it reserves the right to withdraw a course that is not financially viable to run. And Herschel does not enter students for AS Levels at the end of Year 12 — internal exams are used instead, with the linear A Levels sat at the end of Year 13. The school tells applicants that its most successful learners spend about 30 hours a week on independent study.

Preparation for a points-based sixth form entry looks different from preparation for an entrance exam. There is no test to practise. There is a GCSE profile to lift, subject by subject, in the year before the January deadline — which is why the useful work happens in the autumn of Year 11, not in results week. Our guide to grammar school sixth form entry requirements sets out how these thresholds vary between schools, and what happens when a sixth form withdraws a place after GCSE results covers the position if an offer does not convert. For a nearby contrast in mechanism, Burnham Grammar School in Buckinghamshire scores a best-eight points total rather than an average across all subjects — a different authority, a different rule, and not one that reads across to Herschel.

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