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Sutton Zone Grammar Schools: The Complete 11+ Guide for 2027 Entry

Here's the detail that catches most Sutton families off guard: there's no such thing as "the Sutton 11+ exam." What looks like one admissions process from the outside is actually two — a shared first-stage test every applicant sits, the Sutton SET, followed by a second stage that looks completely different depending on which school your child applies to.

That two-stage structure is good news in one sense (your child doesn't sit five separate exams for five schools) and a source of real confusion in another (the schools themselves aren't identical, and treating them as one interchangeable group leads to avoidable mistakes).

This guide is for you if:

• Your child is in Year 5 or Year 6 and you're considering Wilson's School, Sutton Grammar School, Wallington County Grammar School, Wallington High School for Girls, or Nonsuch High School for Girls
• You want to understand how the SET actually works, not just that it exists
• You're trying to work out realistic timelines, what each school is actually looking for, and where families most commonly go wrong

We'll also touch on Greenshaw High School, a partially selective school that uses the same first-stage test for a smaller number of places, since it's often mentioned in the same breath as the five main grammar schools.

What is the Sutton Zone, and why does it work differently to other 11+ areas?

Most areas that run selective 11+ testing use one exam board (like GL Assessment or CEM) across every school in the area, or each school sets its own paper independently. Sutton does something in between: the schools cooperate on a shared first stage, then diverge for a second stage that reflects what each individual school actually wants to see.

Five schools currently sit inside this shared system as fully selective grammar schools:

• Wilson's School (boys)
• Sutton Grammar School (boys)
• Wallington County Grammar School (boys, with a mixed sixth form)
• Wallington High School for Girls
• Nonsuch High School for Girls

A sixth school, Greenshaw High School, is partially selective — it uses the same first-stage test to allocate a defined number of selective places, alongside non-selective admissions for the rest of its intake.

The practical benefit of the shared-test model: if you're applying to more than one Sutton school, your child doesn't have to sit multiple first-stage exams. They sit the SET once, and — provided you've requested it — the result is shared with every participating school on your list.

Stage 1: the Sutton SET, explained properly

The SET (Selective Eligibility Test) is the qualifying hurdle every applicant clears before any individual school looks at their result. It's designed to test what your child has actually learned in primary school, not abstract puzzle-solving.

What's actually tested

Both papers are multiple choice, and both are pitched at the Key Stage 2 curriculum — meaning the content lines up with what your child is being taught in Year 5 and 6 anyway, rather than testing separate "11+ skills" from scratch.

This is the detail that surprises a lot of parents: the SET does not include verbal reasoning or non-verbal reasoning. If you've seen 11+ preparation books built around reasoning puzzles, coding sequences, or odd-one-out shape questions, know that none of that is relevant to the SET stage itself. That time is much better spent on solid English comprehension work and Maths fluency.

How the pass mark works: each school sets its own qualifying mark for the SET after the papers have been marked — it isn't published as a fixed target in advance. In practice, this means families are typically told only whether their child has qualified for Stage 2, not their exact score. Don't go looking for a specific number to aim for; focus on genuine preparation instead of chasing a target that doesn't exist yet.

Stage 2: how it splits by school

Only children who qualify at Stage 1 are invited to sit Stage 2 — and this is where the "one shared exam" idea gets more nuanced, not where it stops applying entirely.

The two girls' schools share a paper. Nonsuch and Wallington High School for Girls both use the Nonsuch and Wallington Second Stage Entrance Examination (NWSSEE), sat by both schools' applicants on the same date.

The three boys' schools also share one paper — but not one outcome. Wilson's, Sutton Grammar and Wallington County Grammar sit a single, common Second Stage test (Maths and English) on the same date, so a boy applying to more than one of the three doesn't sit it three times. What differs is what happens to the result afterward: each school applies its own admissions criteria, scoring approach and weighting to that shared paper, so qualifying at one doesn't automatically mean qualifying at another. See our full breakdown of Stage 2 by school for exactly how each one evaluates it.

Greenshaw doesn't have a Stage 2 at all. Because it's only partially selective, Greenshaw allocates its selective places directly from SET performance, without an additional exam stage.

Unlike the SET, Stage 2 is not multiple choice. Expect an extended writing task for English and a standard-format maths paper — a meaningfully different skill set from the multiple-choice Stage 1, which is worth building into your preparation plan well before Stage 2 approaches.

Wilson's extra step: the Aptitude Test Day

Wilson's School is the one school in this zone that adds a further stage beyond Stage 2: an Aptitude Test Day, for boys who've been shortlisted after Stage 2 results are in. This isn't mirrored at any of the other four fully selective Sutton schools, so if Wilson's is on your list, build this extra date into your planning and don't assume the process ends where it does for the other schools.

School-by-school snapshot

A few notes worth expanding on:

Wilson's has no formal catchment area. Where places can't be separated on merit alone, priority goes first to boys resident in the London Borough of Sutton, then by straight-line distance to the school. Combined with consistently heavy demand — one tuition-sector estimate puts it at roughly four boys competing per place for a recent entry year, though treat that as indicative rather than an official school figure — this makes Wilson's one of the most competitive schools in the zone by reputation.

Nonsuch's catchment is unusually well-documented. It's defined as a 5.25 km radius circle measured from the school, a figure that's consistently corroborated across multiple sources — more reliable than the catchment boundaries quoted for Sutton Grammar, Wallington County or Wallington Girls, which we'd recommend checking directly against each school's current published admissions policy before relying on them.

Nonsuch's place allocation has several tiers, roughly in this order: looked-after and previously looked-after girls first; then a small fixed allocation for girls eligible for Pupil Premium or Service Premium; then the largest single category — girls with the highest combined SET and Stage 2 scores, regardless of where they live; then remaining catchment-area girls who've met the qualifying score. If you're outside Nonsuch's catchment circle, this "top scores regardless of address" category is the route in — it's worth understanding before assuming catchment alone decides who gets a place.

Ofsted ratings and what they can (and can't) tell you

As of their most recent inspections, Wilson's is rated Outstanding across every category (September 2022), while Nonsuch is rated Good, with all five sub-categories at Good (2021). We haven't been able to verify current, consistent ratings for the other three schools in this pass — check reports.ofsted.gov.uk directly using each school's URN for the most current inspection outcome.

A rating difference between two schools doesn't automatically mean one offers a meaningfully worse education than the other — inspection cycles, dates, and the specific framework used at the time all affect outcomes. Use Ofsted reports as one input among several, not the deciding factor.

The 2027-entry timeline

Always confirm exact dates directly with each school closer to the time — the schedule above reflects the 2027-entry cycle as researched, but admissions timetables are set (and occasionally adjusted) by the schools and local authority each year.

Parent advice

Start earlier than you think you need to. Not with formal tutoring necessarily — but with an honest look at where your child's English and Maths actually stand against the Key Stage 2 curriculum, roughly a year out from the SET date. Because Stage 1 doesn't test reasoning skills, this is genuinely different preparation from what many generic "11+ prep" resources assume.

Decide your school list with the differences in mind, not just reputation. A no-catchment school with heavy demand (Wilson's) is a different competitive proposition to a defined-catchment school with a large "top scores anywhere" allocation (Nonsuch). Applying to multiple Sutton schools is low-cost, since the SET is shared — but Stage 2 preparation genuinely differs by school group, so don't leave that differentiation until after Stage 1 results land.

Mistakes to avoid

• Forgetting to tick the box to share your SET result across schools — this is avoidable and has real consequences.
• Treating verbal/non-verbal reasoning practice as essential for the SET — it isn't tested at Stage 1 in this zone.
• Assuming Stage 2 will feel like Stage 1. It's a different format (extended writing, not multiple choice) and deserves separate preparation time.
• Losing track of the national common application deadline because attention is focused entirely on the Sutton-specific dates.
• Quoting demand/oversubscription figures you've seen quoted informally as if they're official — always sanity-check against the school's own published statistics.

Student tips

If you're the one actually sitting these exams — well done for getting this far in a guide written mostly for grown-ups.

For the SET: you're being tested on English and Maths you've already been learning in school. That means the best preparation is making sure you're genuinely confident with what you're doing in class right now — comprehension, spelling, fractions, shapes, problem-solving — rather than separate "puzzle" practice.

For Stage 2: this is a different kind of test. Instead of picking an answer from a list, you'll need to write your own answers, including a longer piece of writing. Practise writing at length under a time limit, not just answering short questions — pacing yourself is a skill in its own right.

A note on nerves: it's completely normal to feel nervous before a test like this. The children who do best usually aren't the ones who feel nothing at all — they're the ones who've practised enough that the format feels familiar, so the nerves don't get in the way on the day.

Tutor notes

For tutors working with Sutton-zone families, a few points worth flagging explicitly to parents who may not realise them:

• Stage 1 has no reasoning component. If a family arrives with a generic 11+ reasoning workbook, redirect the conversation early — that prep time is better spent on comprehension technique and arithmetic fluency, which is where SET marks are actually won or lost.
• The pass mark is set post-hoc, so "aim for X%" targets are fiction unless a school has explicitly published one for the current cycle. Frame progress around genuine competence against the KS2 curriculum, not a moving target.
• Stage 2 writing technique is a distinct skill from Stage 1 comprehension, and often under-practised because families assume "good at English" transfers automatically. Extended, timed writing practice — with real editing, not just first-draft output — pays off disproportionately here.
• Girls' families preparing for NWSSEE should treat Nonsuch and Wallington Girls as one preparation track, since they share the paper — but should still research each school's own ethos and oversubscription criteria separately, since those diverge even though the exam doesn't.

Common mistakes

Parents

• Not ticking the box to share the SET result across schools
• Over-indexing on reasoning practice that isn't tested at Stage 1 in this zone
• Treating informally-quoted oversubscription figures as official school data
• Missing the national common application deadline while focused on Sutton-specific dates

Students

• Practising only multiple-choice question styles and being caught off guard by Stage 2's extended writing format
• Not practising writing under real time pressure before Stage 2
• Over-focusing on speed at the expense of accuracy in the SET's multiple-choice papers

Tutors

• Applying a generic, reasoning-heavy 11+ curriculum without adapting it to the SET's actual English/Maths-only Stage 1 format
• Not distinguishing Stage 1 and Stage 2 preparation as genuinely separate skill-building phases
• Failing to flag the separate, earlier access-arrangements deadline (where relevant, e.g. Nonsuch) to families who may need it

Frequently asked questions

Related SharpY Mind resources

• 📘 The 11+ Guide — every guide we have, mapped
• Sutton 11+: Why a Higher Score Can Lose
• National Offer Day & the CAF: Timeline Explained
• Grammar Schools by Region: Zone & Catchment Guide
• Does Your Target School Even Test Verbal Reasoning?
• CEM vs GL Assessment: Why It Changed
• How Many Children Compete Per Place?
• Do You Need a Tutor for the 11+?
• Is my child ready for the 11+? Free 2-minute quiz →
• Which exam board does my school use? →