St Paul's School 13+ Entry: the Complete 2027 Guide

St Paul's School admits boys into Year 9 (13+) through a three-stage process that starts almost three years earlier: registration via ISEB, the online Common Pre-Test in October or November of Year 6, written papers at the school in early January, and a Saturday interview soon after — with offers confirmed by the end of February of Year 6. Founded in 1509 and based on Lonsdale Road in Barnes, south-west London, St Paul's is one of the most academically selective boys' schools in Britain, and its 13+ process rewards early, structured preparation far more than last-minute cramming.

How does 13+ entry to St Paul's School work?

The headline most families miss is that 13+ entry is decided in Year 6, not Year 8. Although your son would not start at St Paul's until Year 9, the selection funnel — Pre-Test, written assessments and interview — runs during Year 6, and the offer that follows is then held (conditionally) for over two years. The school also requests a report from your son's current Head Teacher covering character, academic strengths and interests, which sits alongside his Pre-Test performance at stage one.

What is the ISEB Common Pre-Test and when is it taken?

The ISEB Common Pre-Test is an adaptive online assessment covering English, Mathematics, Verbal Reasoning and Non-Verbal Reasoning. St Paul's requires every registered 13+ candidate to sit it in October or November of Year 6, preferably at his current school; boys whose schools cannot administer it can sit it at St Paul's in November instead. Because the test is adaptive, question difficulty adjusts to performance as your son answers — which is why familiarity with the on-screen format and strict timing matters as much as underlying knowledge. Registration is made through ISEB rather than the school, is free of charge, and for 2029 entry opened in July 2026; St Paul's advises joining the ISEB mailing list so registration details arrive automatically.

One practical consequence of the adaptive format: a boy who rushes early questions can lock himself onto a harder or easier track than his true level. Timed practice under realistic conditions in the months before October of Year 6 is the highest-value preparation there is for this stage.

What do the January written assessments involve?

Candidates selected after the Pre-Test are invited to St Paul's in early January of Year 6 for two written papers: a 75-minute Mathematics paper and a 45-minute English paper. The school publishes its own guidance and sample questions for both on the 13+ selection procedure page — these are the single best indication of style and standard, and any preparation plan should be built around them. The Mathematics paper goes beyond routine Key Stage 2 content into multi-step problem solving; the English paper rewards precise comprehension and controlled, accurate writing rather than length.

Families comparing schools should note how this differs from other major London schools: Westminster also filters at 11 via the ISEB Pre-Test, but each school's own written round has a distinct character, so past-paper practice must be school-specific rather than generic.

What happens at the St Paul's 13+ interview?

Boys who perform well in the written assessments are interviewed on a Saturday in late January or early February. St Paul's is explicit about what the interview explores: numeracy skills, the ability to critically analyse source material, and your son's co-curricular interests, alongside a general conversation. This is not a test of rehearsed answers — interviewers present unfamiliar material and watch how a boy reasons aloud, changes his mind, and engages. While candidates are interviewed, parents attend a talk with the High Master and senior leaders, which is also a genuine chance to assess the school in return.

Preparation that works for this format is discussion practice: reading a short passage, chart or problem and talking through what it shows, what is missing and what might explain it. Preparation that fails is memorising answers to predicted questions — the format is designed to route around exactly that.

What are the possible outcomes — and what is the Year 8 route?

By the end of February there are three possible outcomes. First, an offer, which must be accepted by March of Year 7 and is conditional on continued good conduct and progress, including an unreserved Head Teacher's reference in Year 8; boys at prep schools that do not follow St Paul's prescribed Years 7–8 curriculum may face additional conditions, such as a minimum of 70% in prescribed subjects at Common Entrance. Second, an invitation to the 13+ Year 8 assessment: boys with potential re-sit English and Maths papers in September of Year 8, strong performers are interviewed in early October, and some are then offered Fourth Form (Year 9) places, with a few placed on a waiting list. Third, no offer.

The Year 8 route deserves more respect than it usually gets. St Paul's describes it as wanting to see boys again once they have had more time to develop academically and emotionally — for late-developing boys it is a real second door, not a consolation prize, and preparation for it should continue seriously through Year 7.

When should you register? Key dates for 2027–2029 entry

Dates come from the school's published selection procedure; verify the current cycle on the official St Paul's 13+ admissions pages before committing to a timeline, and address questions to the Registrar, Bernadette Lees (13plusentry@stpaulsschool.org.uk).

How should your son prepare for St Paul's 13+?

Work backwards from the October Pre-Test. In Year 5, focus on core Maths fluency and reading breadth — the Pre-Test's verbal sections punish a narrow vocabulary more than any other weakness. From the summer before Year 6, add timed, on-screen adaptive practice so the format holds no surprises. After a stage-one pass in mid-December, switch entirely to St Paul's own sample materials for the January papers: the 75-minute Maths paper needs multi-step problem stamina, and the 45-minute English paper rewards tight planning over word count. From January, practise talking through unfamiliar sources — graphs, short passages, puzzles — because that, not rehearsed biography, is what the interview measures. Our full St Paul's School 13+ guide covers each stage in more depth.

Three principles run through all of it. Verify every date against the school's official pages each term, because timelines shift between cycles. Keep your son's current school on side — the Head Teacher's report is a formal stage-one input, and the Year 8 reference is a condition of every offer. And treat conditions as live: a boy outside the prescribed curriculum who coasts after an offer can lose his place at Common Entrance.

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