CSSE 11+: The Essex grammar school entrance exam explained

The CSSE 11+ is the shared entrance exam for the Consortium of Selective Schools in Essex. If you're applying to a grammar school in Essex, this is most likely the test your child will sit. Your child takes the exam once and the result is used by every CSSE member school.

This guide covers everything a parent needs to know up front: Which schools belong to the consortium, how the two papers are structured, how scoring works, the headline qualifying score, and the key dates for September 2026 entry to Year 7 in 2027.

Most of the selective state schools in Essex sit within CSSE. The consortium currently has ten member schools, covering Chelmsford, Colchester, Southend and the surrounding areas, and including both the fully selective grammars and several partially selective high schools.

The one Essex grammar that isn't part of CSSE is Chelmsford County High School for Girls (CCHS), which uses the FSCE entrance test on a different date. If you're applying to CCHS as well as a CSSE school, your child will sit two exams in different sittings.

CSSE membership can shift, so always cross-check the current list on csse.org.uk before you register. The current members are King Edward VI Grammar School (KEGS Chelmsford), Colchester Royal Grammar School, Colchester County High School for Girls, Southend High School for Boys, Southend High School for Girls, Westcliff High School for Boys, Westcliff High School for Girls, St Bernard's High School, St Thomas More High School, and Shoeburyness High School.

The CSSE test is two papers in one day: English and maths. Unlike many other consortium tests, there's no verbal or non-verbal reasoning paper. The format is also closer to a traditional written exam than a multiple-choice answer sheet.

The English paper runs for one hour plus 10 minutes' reading time. It splits into a reading comprehension section and a creative writing task. Comprehension uses an unseen text with a mix of literal, inferential and language-analysis questions. The writing task usually offers a choice of prompts; CSSE does not publish a word-count requirement, but practising a clearly structured piece (typically around 200 to 300 words within the time available) is a sensible target.

The maths paper runs for one hour. It's set on the Key Stage 2 national curriculum and covers arithmetic, problem-solving and reasoning. The paper mixes short factual questions with multi-step worded problems.

Each paper is marked out of 60 and weighted equally, so the test is effectively 50% English and 50% maths.

Each paper is marked out of 60 and combined into a total raw score out of 120. That total is then age-standardised, which adjusts each child's score against the average for their exact age in months. A child born in August isn't disadvantaged against a child born in September.

The published minimum qualifying standardised score for CSSE has historically been 303. Hitting 303 puts your child in the pool of children who can be considered for a place at a CSSE school, but it doesn't guarantee an offer.

Individual schools then apply their own admissions criteria. Most CSSE schools rank candidates by distance from the school, but some also consider faith criteria, looked-after children priority, and sibling links. Some popular schools effectively need scores well above 303 because of the distance tiebreaker.

The CSSE timeline follows a similar shape every year. These dates are for September 2027 entry to Year 7 (the test sat in September 2026):

The most useful preparation is steady work on the underlying Key Stage 2 skills, not endless past papers. Strong reading comprehension comes from reading widely and being able to talk about what you've read. Strong creative writing comes from practice with structure (a clear opening, a turning point, a resolution) and a habit of varying sentence length.

For maths, focus on the four operations done quickly and accurately, fractions and decimals, percentages, basic geometry and worded problem-solving. Mental arithmetic speed makes a noticeable difference under time pressure.

CSSE publishes a small set of free familiarisation materials on its own site. Use those to show your child what the paper looks like, then move on to varied practice rather than drilling the same handful of questions. Plenty of children sit the CSSE without any tutoring at all. If you do choose to use a tutor, six to nine months of focused work in Year 5 is usually enough.