GCSE rank #16 In-site school
Chelmsford County High School for Girls
Chelmsford, Essex
Ofsted: Outstanding Girls only
Consortium guide
Essex 11 Plus CSSE
Understand how the CSSE 11 Plus works, which schools share it, what the assessment usually looks like, and the practical checks to make before building a shortlist.
8 schools CSSE / FSCE 7 key dates
Last checked 29 Mar 2026
Applies To
All 9 grammar schools that are part of the Consortium of Selective Schools in Essex.
Test Format
Two papers – one in mathematics and one in English – written by the CSSE for the consortium each year.
Eligibility
There are no formal entry requirements to sit the CSSE 11 Plus exam.
Places Available
Over 1,300 grammar school places are available annually across the CSSE schools.
Applications
Around 5,000 children apply to take the CSSE test each year.
01 / Route overview
What this route covers
The CSSE 11 Plus exam is the entrance assessment used by all grammar schools that form part of the Consortium of Selective Schools in Essex.
In this section
- What the route covers
- Which schools use it
- What to compare next
Essex 11 Plus CSSE is a shared route used by 9 schools, so it helps to get clear on the test, timeline, and school list before narrowing further.
Once the Essex (CSSE) route itself is clear, the shortlist usually improves when you compare travel, admissions rules, and school fit instead of treating every school on the route as interchangeable.
Schools using this route
These are the schools currently linked to the Essex (CSSE) route.
GCSE rank #14 In-site school
Colchester County High School for Girls
Colchester, Essex
Ofsted: Outstanding Girls only
GCSE rank #12 In-site school
Colchester Royal Grammar School
Colchester, Essex
Boys only
GCSE rank #7 In-site school
King Edward VI Grammar School, Chelmsford
Chelmsford, Essex
Ofsted: Outstanding Mixed
GCSE rank #78 In-site school
Southend High School for Boys
Southend-on-Sea
Ofsted: Outstanding Boys only
GCSE rank #52 In-site school
Southend High School for Girls
Southend-on-Sea
Ofsted: Outstanding Girls only
GCSE rank #34 In-site school
Westcliff High School for Boys Academy
Westcliff-on-Sea, Southend-on-Sea
Ofsted: Outstanding Boys only
GCSE rank #46 In-site school
Westcliff High School for Girls
Westcliff-on-Sea, Southend-on-Sea
Ofsted: Outstanding Girls only
What to compare next
- Travel time and how realistic the school day looks from home
- Oversubscription and admissions rules applied after the test result
- School type, setting, and whether the environment suits your child
- Any route-specific deadlines, forms, or extra steps to keep alongside the shared test
02 / Selection test
Exam format and structure
The exam includes two one-hour assessments designed to test academic knowledge and reasoning skills in English and maths.
In this section
- Paper structure
- Subjects covered
- Stages or provider
Paper structure
Paper 1: English (CSSE)
See the papers and topics below.
Paper 2: Mathematics (CSSE)
See the papers and topics below.
What the test covers
60-minute test plus 10 minutes of reading time
Section 1
Covers comprehension, grammar, punctuation, vocabulary and literacy-style questions
Section 2
Creative writing task
60-minute test
Covers arithmetic, algebra, geometry, statistics, and problem-solving
Standard format requiring written responses (not multiple choice)
03 / Scoring
Pass mark and score guidance
The CSSE 11 Plus Test is standardised to allow fair comparison between pupils of different ages. Each child receives standardised scores for English and maths, along with a total combined score.
In this section
- Score mix
- Threshold notes
- How marks are described
How the final score is worked out
Southend priority area and local schools: 55–60%
Out-of-area Southend schools
65%
Colchester County High School
65–70%
CRGS and KEGS (priority area)
70%
KEGS (out of area)
75%
Although the required score may vary slightly each year and between schools, no offers are made to children who score below a standardised total of 303 . Recent data gives a rough guide to the minimum percentage scores needed:
It’s important to note that your child must perform consistently across both papers. A high score in one subject won’t compensate for a low score in the other.
04 / Applications
Key dates and how to apply
To apply, you must register your child via the CSSE website during the official registration period.
In this section
- Registration timing
- Test day
- Application steps
Key dates
Registration opens
Tuesday 13th May 2025
Registration closes
Friday 27th June 2025
CSSE Test date
Saturday 20th September
Test day for religious, illness or exceptional circumstances only
Tuesday 30th September 2025
Results day
Monday 13th October 2025
Secondary school application deadline
Friday 31st October 2025
National offer day
Sunday 1st March 2026
Application steps
Register Online
Visit the CSSE website and complete the online application form.
Select a Test Centre
Children typically sit the test at the school selected during registration. If full, an alternative school centre will be offered.
Save Your Confirmation
Keep your confirmation email for future reference.
07 / Shortlisting
Admissions points to compare school by school
Once the route itself is clear, treat the linked schools as separate choices. This is usually where travel, oversubscription rules, and school fit start to matter most.
In this section
- Travel and realism
- Oversubscription rules
- School-by-school fit
The shared route keeps the testing process simpler, but the final shortlist usually depends on how each linked school applies its admissions rules and how practical each option still looks once travel is taken seriously.
Check these before you rank schools
- Travel time and how realistic the school day looks from home
- Oversubscription and admissions rules applied after the test result
- School type, setting, and whether the environment suits your child
- Any route-specific deadlines, forms, or extra steps to keep alongside the shared test
08 / Preparation
How to prepare for this route
Helping your child prepare early and consistently can make a significant difference. Here are some effective strategies:
In this section
- What to practise
- How to plan
- How to stay grounded
Start Early
Begin preparation in Year 4 or early Year 5 for steady progress.
Use Practice Papers
Work through past papers and timed tests to build familiarity.
Focus on Weak Areas
Identify and revisit topics where your child needs more support.
Read Regularly
Daily reading strengthens comprehension and vocabulary.
Use Online Resources
Interactive tools can help tailor revision and keep learning engaging.
With the right preparation and support, your child can approach the CSSE 11 Plus Test with confidence.
09 / FAQs
Questions families often ask
Use these answers as a planning guide, then confirm the live admissions details for your application year.
In this section
- Common questions
- Decision checks
- Application-year details
Does one CSSE 11 Plus result cover every school on this page? +
In broad terms, yes: the shared CSSE 11 Plus route lets one test result support several school applications. The important caveat is that final admissions rules can still differ between the schools using that route.
Does a qualifying score guarantee a place? +
No. A strong or qualifying result may keep a school in play, but final offers still depend on the admissions policy, oversubscription rules, and how competitive that year is.
What should parents compare once the route itself is clear? +
Parents usually make better decisions when they compare whether you are aiming at Chelmsford, Colchester, or Southend-linked schools, and how that changes travel, oversubscription thinking, and the school list you should prepare for. That turns a broad route into a realistic shortlist instead of a wish list.
Who usually manages registration or applications for Essex (CSSE)? +
The live process usually sits with CSSE-linked schools and the relevant local authority process. This page helps you understand the route, but the final registration and admissions instructions should always be checked on the live official pages for the relevant year.