Cranbrook School 13+ Preparation

Cranbrook School is a state boarding grammar school in Cranbrook, Kent, that selects Year 9 (13+) entrants through its own Cranbrook School Entrance Exam, not the ISEB Common Pre-Test used by most independent senior schools. For September 2027 entry the school is offering 8 day places and 52 boarding places, with applications closing on 2 November 2026 and the exam sat on Saturday 14 November 2026.

Leading Tuition provides specialist one-to-one preparation built around this specific exam. Because Cranbrook sets its own three papers — English, non-calculator mathematics and non-verbal reasoning — rather than the computer-adaptive ISEB Pre-Test used at many other 13+ schools, a programme built around ISEB question types is the wrong preparation for this particular entry point. Our tutors work from Cranbrook's own published exam overview and structure sessions around exactly what the school tests, not what a generic 13+ course assumes it tests.

Does Cranbrook Use the ISEB Pre-Test? What the Year 9 Entrance Exam Actually Tests

Cranbrook describes its own admissions structure plainly: "Uniquely, Cranbrook School has 3 entry points" — Year 7 day entry through the Kent 11+ Test, Year 9 entry (day and boarding) through the school's own Cranbrook Entrance Exam, and Sixth Form entry assessed on predicted GCSE points. Our Cranbrook School 11+ guide covers the Year 7 Kent Test route, and our Cranbrook School sixth form guide covers Year 12 entry; this page is about the middle route, Year 9 entry at 13+, which is the one most generic 13+ guides get wrong by assuming it follows the ISEB Common Pre-Test used at independent schools such as Charterhouse. It does not. Families who search for ISEB Pre-Test preparation and assume it applies to Cranbrook are preparing for the wrong assessment entirely.

The Cranbrook School Entrance Exam consists of three papers, sat on the same day by day and boarding candidates alike. The Mathematics paper is 45 minutes, non-calculator, and drawn from the topics in Cranbrook's own Year 7/KS3 curriculum overview; students are expected to show full working, not just final answers. The English paper is also 45 minutes, split into two tasks of around 20 minutes each — one continuing a short piece of descriptive fiction from a given opening, the other writing a persuasive piece in a specified form such as a letter or a speech, again continuing from an opening the school provides. The Non-Verbal Reasoning paper runs for 30 minutes and covers shape relationships, sequences and coded features, similar in kind to the NVR sections used at 11+.

The absence of a Verbal Reasoning paper is the detail most competitor guides miss, because it is the opposite of what the ISEB Common Pre-Test tests: ISEB is computer-adaptive and includes English, Mathematics, Verbal Reasoning and Non-Verbal Reasoning together. Cranbrook's own paper, by contrast, has no VR component at all. Cranbrook's published exam overview also notes candidly that its NVR familiarisation material is "designed for use with candidates at an 11+ admissions point, but are still judged to be appropriate for 13+ candidates" — in other words, there is no dedicated published 13+ NVR resource for this specific exam, only 11+ material repurposed for an older year group. Overseas candidates sitting the exam remotely follow a different route again: their NVR component is replaced entirely by part one of an online CAT4 Level E test, which is why some preparation sites mention CAT4 in connection with Cranbrook — it applies only to remote overseas sittings and to late or in-year applicants after December, not to the standard November sitting most day and boarding candidates take.

Because we know exactly which paper Cranbrook drops and which it keeps, our tutors do not spend session time drilling verbal reasoning question types that will never appear on this exam. That time goes instead into non-calculator arithmetic practice and NVR pattern work — the two areas Cranbrook's own materials confirm are tested, and the one area (VR) it confirms is not.

How Competitive Is Cranbrook 13+ Entry?

Cranbrook's Year 9 cohort holds 150 places in total: 98 day and 52 boarding. Most of the day allocation is not available to new applicants at all — 90 day places are filled automatically by Cranbrook's own Year 8 pupils progressing internally, leaving just 60 places genuinely open to outside candidates for September 2027: 8 day and 52 boarding. That asymmetry is worth sitting with. A family applying for one of the 8 external day places is competing for a place roughly nine times scarcer, in raw numbers, than a family applying to board. It is also the reverse of the pattern at Cranbrook's sixth form, where day places for external candidates outnumber boarding places (see our sixth form guide for the exact split) — Cranbrook is boarding-led at 13+ and day-led at 16+, and a family assuming the two entry points behave the same way is working from the wrong assumption.

For September 2027 entry, applications open on 1 September 2026 and close on 2 November 2026 — a date confirmed directly on Cranbrook's own Year 9 admissions page. Several independent 13+ preparation guides currently give the deadline as simply "the end of October", which understates how much time families actually have and appears not to reflect the confirmed 2027-entry date. The exam itself follows on Saturday 14 November 2026 at 9am, the same date and time for both day and boarding candidates.

Geography plays a role for day applicants in the same way it does at Year 7: priority is given to families living within Cranbrook's defined Priority Area, covering a small number of named civil parishes around the school plus an 8.5-kilometre radius. Our 11+ guide sets out that priority area in full, since the geography is the same one used at Year 7. Boarding applicants at 13+ face no such geographic test — like Cranbrook's sixth form boarding route, Year 9 boarding is open to families from anywhere in the UK or overseas, provided the candidate holds a UK or Irish passport or Right of Abode.

How Leading Tuition Prepares Students for Cranbrook's Own Exam

Our preparation for Cranbrook candidates follows the shape of the exam itself rather than a standard 13+ curriculum. In Mathematics, many candidates arrive from a Year 7 education where calculators have played some part in problem-solving, so the first stage of our programme is deliberately calculator-free: timed arithmetic, fraction and ratio work, and multi-step problem solving built entirely around the Year 7/KS3 topics Cranbrook draws its own paper from, with full working required exactly as the school expects.

In English, we treat the two writing tasks as genuinely separate skills rather than one general "writing" lesson. The descriptive continuation task rewards vivid, controlled sentence-level detail; the persuasive task rewards matching tone and structure to a specified form — a letter reads differently from a speech, and marks are awarded specifically for matching form, audience and purpose. We run each task under its own 20-minute time limit from early in a programme, because pacing under a hard time limit is a skill in itself, not something that develops automatically from untimed practice.

In Non-Verbal Reasoning, we start from the same position Cranbrook's own guidance points families to: 11+ familiarisation material, since no dedicated 13+ NVR bank exists for this exam. Rather than leaving a family to work out which of the many available 11+ resources are actually appropriate for an older, 13+ candidate, our tutors select and pace this material specifically for Year 8 pupils, moving faster through the easier pattern types and spending more time on the coded-feature questions that tend to catch older candidates out precisely because they have not seen this format since Year 5 or 6, if at all.

Programmes typically begin in the spring or summer term of Year 7, giving well over a year of structured preparation before the 14 November 2026 exam date, though families starting later in Year 8 can still build an effective programme around the specific paper structure above. For boarding candidates who pass the written exam, we also prepare students for the suitability interview that follows in early December — a conversation-based assessment of how a candidate is likely to settle into boarding life, quite different in character from the written papers that come before it.

What Happens After the Exam — Results, Interviews and Scholarships

Cranbrook notifies all candidates of their exam score on 27 November 2026 — a pass or fail notification rather than an offer itself. From there, the day and boarding routes diverge again. Day candidates receive their result on National Offer Day; Cranbrook's own 2027 key-dates document names this as "Monday 1 March", though the year printed alongside it reads 2026, a year out of step with the rest of that same document's 2027-entry timeline. National Offer Day is a fixed, nationally coordinated date, and 1 March 2027 — the date already confirmed on Cranbrook's own Year 7 key dates for the same September 2027 entry year — is the figure families should plan against.

Boarding candidates who pass the written exam are invited to a suitability interview, held in person or on Teams in early December 2026, with exact dates to be confirmed nearer the time. Offers are then made to successful boarding candidates by 16 December 2026 — around three months earlier than day candidates find out, because the boarding route does not wait for National Offer Day. Families who are not offered a place, whether day or boarding, can appeal; Cranbrook's own guidance places 13+ appeals at around 22-24 April 2027, with exact dates also still to be confirmed at the time of writing.

Scholarships are a separate matter from admission itself, and this is another point competitor guides frequently get wrong or leave out. Cranbrook publishes 3 Entrance Scholarships and 14 Academic Scholarships, plus two Music Scholarships, but — as the school states directly — "there are no Scholarships for those applying for Year 7 entry", and the same is true of the Year 9 admissions process itself: scholarships are not awarded as part of gaining a place. Instead, students who have already secured a place register for scholarship examinations once they are on roll at Cranbrook, sitting a further scholarship paper alongside a review of their original 13+ Entrance Exam performance. For an ambitious candidate, preparing thoroughly for the entrance exam itself is therefore not just about securing the place — a strong performance also keeps the later scholarship route open.

For the wider Cranbrook admissions picture beyond Year 9, our Cranbrook School 11+ guide covers the Kent Test route into Year 7, and our Cranbrook School sixth form guide covers Year 12 entry requirements, including how the day-boarding balance flips at that stage. Families comparing Cranbrook's own exam against the ISEB route used elsewhere may also find our ISEB Pre-Test preparation page useful for context, and our 13+ resources hub for wider practice material. Full official detail on the Year 9 route sits on Cranbrook's own Year 9 day admissions page and boarding admissions page, and families should always confirm exact 2027 dates directly with the school's admissions team nearer the time.

Frequently Asked Questions