Wallington County Grammar School 11+ Preparation

Wallington County Grammar School is a selective boys' grammar school in the London Borough of Sutton that admits 150 boys into Year 7 through a two-stage entrance test. Stage one is the Sutton Selective Eligibility Test, sat on 15 September 2026 for entry in September 2027; stage two follows on 3 October 2026. The two are not equal: the school combines them two fifths SET, three fifths Second Stage.

How does entry to Wallington County Grammar work for 2027 entry?

Two separate examinations stand between a boy and a place, and they sit three weeks apart in the autumn of Year 6 — before the local authority application is even submitted. The first is the Selective Eligibility Test, which the school's arrangements describe as being "run in conjunction with five other selective and partially selective schools in the London Borough of Sutton". A single registration covers all six. Boys who reach the Wallington County Grammar qualifying mark in the SET are then invited to the Second Stage Test, which is "run jointly between WCGS, Sutton Grammar School and Wilson's School".

Registration is a school process; application is a council process; and confusing the two costs families places every year. Registering for the SET does not name Wallington County Grammar as a preference. That happens on the Common Application Form, which must reach the home local authority by 31 October, months after the tests are sat. Offers then come from the home local authority on or about 1 March.

Where do the marks actually come from?

This is the sentence in the admission arrangements that ought to shape a family's whole plan, and it appears on none of the pages currently ranking for this school: "The total standardised score is made up of two fifths from the SET total score and three fifths from the Second Stage total score."

Worked through, that is 40 per cent of the final standardised score from the September papers and 60 per cent from the October papers. The Second Stage Test therefore carries half as much weight again as the test most families spend the year preparing for. It is also the paper almost nobody drills, because it is written rather than multiple choice and there are no official past papers to buy.

The weighting does not make the SET optional. It works as a gate: a boy who does not reach the Wallington County Grammar qualifying mark in the SET is never invited to the Second Stage Test and cannot be ranked at all, however strong his writing. So the SET has to be passed comfortably and then, in the three weeks that follow, the effort has to move to extended written answers under time. Families who treat 15 September as the finish line lose most of the marks that decide the outcome.

The same logic applies at the other Sutton grammar schools, though each sets its own combined standard, so the mark that qualifies at one will not necessarily qualify at another.

What is on the SET and Second Stage papers?

Sutton Grammar School, which hosts the shared consortium information, is unusually direct about this: the SET "is made up of two papers; a multiple-choice Maths paper and a multiple-choice English paper", and "the tests do not include verbal reasoning or non-verbal reasoning". That single sentence contradicts a large amount of published preparation advice, and it contradicts a great deal of the preparation advice families are given.

The English paper covers spelling and reading comprehension; the maths paper is "broadly based on the Key Stage 2 curriculum". Each runs between 40 and 50 minutes, with a rest break between the two. A standardisation for age mechanism is applied to the SET result, so a boy born in August is not measured against a boy born the previous September on raw marks.

The Second Stage Test is a different exercise altogether. The consortium states that it "is made up of two papers; a Maths paper and an English paper", that the papers "will not include verbal or non-verbal reasoning, and are not multiple choice", and that each runs "around 45 minutes to 1 hour in length". Written maths working and an extended piece of writing are what carry the larger share of the marks.

Who gets the 150 places, and does a Sutton postcode help?

The arrangements set a published admission number of 150 and then divide it into three quotas. The total allocated under Priorities 1 to 3 — looked-after children, children of long-serving staff, and then straight rank order of combined test performance — "will not initially exceed 110". Up to 25 places are held for boys eligible for Pupil Premium. Up to 15 are held for boys whose permanent home address on 31 October falls in a listed set of postcodes: SM1, SM2, SM3, SM4, SM5, SM6, SM7, KT4 8, CR0 4 and CR4 4.

The arithmetic is worth doing explicitly, because no competing page does it: 110 plus 25 plus 15 comes to exactly 150. The postcode criterion is therefore not a catchment area but a quota of one place in ten. Ninety per cent of the intake is decided on test performance with no reference to where a boy lives, and any place left unfilled in the Pupil Premium or postcode quotas reverts to Priority 3, which is rank order again.

The London Borough of Sutton's own allocation table makes the same point from the other direction. It records the furthest distance to which places were offered at each secondary school; for Wallington County Grammar the entry is N/A, because distance never became the deciding factor. Non-selective neighbours tell a different story: Cheam High School offered to 1,325 metres and Greenshaw High School to 1,108 metres.

Distance is not entirely absent. Where two boys finish level on rank order and one place remains, the tie is broken on straight-line home-to-school distance measured by the council's mapping system, and then, if they are equidistant, by drawing lots. But that is a tie-breaker at the margin, not a filter applied to the whole list. A family in Croydon, Merton or north Surrey is not competing at a structural disadvantage — a point worth holding on to when reading the borough guide to Sutton's selective system.

Does Wallington County Grammar publish a pass mark?

No, and it is worth being plain about why. The consortium's position is that "it is not possible to state a pass mark in advance of the test" and that the mark "will be decided by the participating schools after the test has been marked". The standard is set once the papers are marked and the shape of that year's cohort is known, which means it moves from year to year.

What the school does define is the standard's structure rather than its level: a boy is regarded as being of selective ability if he reaches the combined qualifying standard from the SET and the Wallington County Grammar Second Stage Test. Even that is not the end of it. The arrangements state that "success in the Entrance Examinations does not guarantee an offer of a place; the school's published oversubscription criteria will be applied to successful candidates".

So any specific number circulating as the Wallington threshold — a standardised score, a percentile, a percentage on a practice paper — is somebody's estimate. Some of those estimates are reasonable; none of them is published, and none of them will be confirmed after the event either. The practical consequence for a family is that you cannot prepare to a target score. You can only prepare to be comfortably above the standard on both papers, which in practice means treating full marks as the aim on the multiple-choice paper and building genuine written fluency for October.

What do the school's results say about the standard?

The Department for Education's figures for pupils who completed Key Stage 4 in the summer of 2025, published in April 2026, put Wallington County Grammar's Attainment 8 score at 77.7 against a Sutton average of 59.3 and an England average of 46.1. The proportion reaching grade 5 or above in English and maths was 99.3 per cent, against 67.9 per cent across Sutton and 45.4 per cent nationally. Its EBacc average point score was 7.25.

One number that circulates widely for this school should be treated carefully. Progress 8 figures are quoted for it in several places, but the DfE states that "we are not able to calculate Progress 8 scores for academic years 2024/25 and 2025/26" because there is no Key Stage 2 baseline for those cohorts. Any recent Progress 8 score attributed to Wallington County Grammar is either an older figure or an estimate.

Ofsted's published rating for the school is Outstanding, from a school inspection carried out on 15 November 2022 and reported on 29 December 2022. The school takes girls as well as boys into the sixth form, where there are 175 selective places in Year 12 and a minimum of 25 external places, more likely 35 to 50 once internal progression is known.

The primary documents behind all of this are public: the school publishes its key dates for entry in September 2027, the trust publishes the full determined arrangements, and the DfE performance record and Ofsted report are open. Any adviser quoting a Wallington figure should be able to point at one of them.

How should a boy prepare for a test weighted like this?

The structure dictates the plan more than the school's reputation does. Three things follow from it directly.

First, the September paper is an accuracy exercise, not a reasoning one. Two multiple-choice papers of 40 to 50 minutes on Key Stage 2 maths and on spelling and comprehension reward speed and precision on material a strong Year 6 pupil already knows. Time is the binding constraint. Practice that raises the number of questions attempted without raising the error rate is worth more than practice on harder content, and time spent on verbal or non-verbal reasoning workbooks is time spent on skills this consortium does not test.

Second, the three weeks between 15 September and 3 October are the highest-value weeks in the whole timetable, and most families waste them waiting for results. Three fifths of the final standardised score comes from papers sat in that window, in a format — written maths working, extended writing to a prompt — that cannot be improved by multiple-choice drilling. Preparation for the Second Stage Test should begin well before the SET, not after it.

Third, one registration covers six schools, so the sensible question is not only whether a boy can reach the Wallington standard but which combination of schools his profile suits. Boys taking the shared boys' Second Stage paper are in contention at Wilson's School and Sutton Grammar on the same day's work; families with daughters should look at Wallington High School for Girls and Nonsuch High School for Girls, which sit their second stage on a different date. Our 11+ tuition programme is built around that calendar rather than around a generic year of reasoning practice.

A note on what preparation cannot do. The SET may be taken only once in an admissions round, there is no reserve sitting, and there are no official past papers for either stage. Familiarity has to come from the sample materials the school publishes and from work in the right formats, not from a bank of real papers that does not exist.

Reviewed August 2026: places, dates, paper formats, score weighting and oversubscription quotas checked against the Wallington County Grammar School admission arrangements and the Sutton consortium's own admissions pages; attainment figures checked against the Department for Education and Ofsted.

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