Back to blog

St Thomas More High School 11+ guide

By
Atom
|
November 18, 2025

Thinking about applying to St Thomas More High School? Find out everything you need to know about admissions and how to prepare your child for success in the 11 plus.

Key information about St Thomas More High School

  • Address: St Thomas More High School, Kenilworth Gardens, Westcliff-on-Sea, Essex, SS0 0BW
  • Number of pupils: 1,200+
  • Admissions contact: [email protected]
  • Number of places in Year 7: 180 (including 30 selective places)
  • 11+ exam: CSSE 11+
  • Catchment area: yes

Dates for your diary

  • Tuesday 13th May 2025: registration opens for the CSSE 11 plus
  • Friday 27th June 2025: registration closes for the CSSE 11 plus, and deadline for requests for special adjustments
  • July 2025: parents receive test centre information by 16th July
  • Saturday 20th September 2025: CSSE 11 plus exam
  • Monday 13th October 2025: parents receive CSSE 11 plus results
  • Friday 31st October 2025: secondary school applications close at 5pm
  • Monday 2nd March 2026: secondary school national offers day

About St Thomas More High School

St Thomas More High School is a Catholic bilateral school for boys with a mixed sixth form in Westcliff-on-Sea. While the school is predominantly non-selective, 30 'selective' places are reserved each year for boys who pass the 11 plus exam.

The school aims to provide a disciplined, caring and stable environment. St Thomas More produces confident young people who are ready to make a difference in the wider world. Ofsted states that "pupils are supported to become active, mature, articulate and responsible young citizens in society; that is the measure of a Tommy More boy."

How to apply to St Thomas More High School

St Thomas More High School is a bilateral school. This means that only a proportion of places are academically-selective. These places are reserved for children who pass the 11 plus entrance exam.

St Thomas More is a member of the Consortium of Selective Schools in Essex (CSSE). All 10 schools in the CSSE use the same 11 plus exam. This means that your child will only need to take the exam once – even if they’re applying to other schools in the consortium.

The deadline to register for the CSSE 11 plus exam is 27th June 2025. The exam will take place on Saturday 20th September 2025 and you’ll receive your child’s results in mid-October. You can then use these results to decide whether to apply for a place at St Thomas More High School.

Regardless of whether you intend to apply for a selective or non-selective place at St Thomas More, you’ll need to name the school as one of your preferred schools on the secondary school common application form. This will be available on your home council website from early September and must be submitted by 31st October.

Remember – passing the entrance exam doesn’t guarantee that your child will be allocated a selective place. Many schools are often oversubscribed with qualified children. Schools and their admissions authorities work through admissions criteria to prioritise children for places. We’ve included the admissions criteria for St Thomas More High School below.

What subjects are on the entrance exam?

The CSSE 11 plus exam consists of two papers. Each paper lasts around one hour.

  1. English: this consists of reading comprehension and creative writing
  2. Maths: questions are based on the Key Stage 2 maths curriculum

Get your free 11+ learning plan and topic list

Find out exactly what your child needs to study for their target grammar school. Simply enter the school, and Atom will generate a personalised 11+ learning plan and topic list aligned to that school’s exams – so you can focus on what really matters.

Get my plan

How does place allocation work at St Thomas More High School?

Each of the two CSSE papers are worth up to 60 marks (120 in total). Your child’s final marks will be standardised and weighted.

Each school in the CSSE sets its own qualifying score, and this varies from year to year. St Thomas More High School only allocates selective places to children who live within the catchment area and who achieve a standardised score of at least 303. In 2023, no selective places were offered to any children applying to St Thomas More High School.

If more children apply to St Thomas More High School than there are places available, the school applies oversubscription criteria in the order below. Priority is always given in each group to Catholic children.

  1. Up to 30 places for boys who pass the CSSE 11 plus and who live within the catchment area
  2. ‘Looked after’ and ‘previously looked after’ boys from Catholic families
  3. Baptised Catholic boys living within the named parishes (see below)
  4. Baptised Catholic boys
  5. Boys who attend an Assisi Catholic Trust primary school (see below)
  6. Other ‘looked after’ and ‘previously looked after’ boys
  7. Catechumens and members of an Eastern Christian Church
  8. Children of other Christian denominations whose membership has been evidenced by a religious minister
  9. Any other children whose families wish them to receive a Catholic education

What is the catchment area for St Thomas More High School?

The catchment area for St Thomas More High School covers the postcode areas SS0, SS1, SS2, SS3, SS4, SS5, SS6, SS7, SS8 and SS9. Selective places are only available for children who live within these postcode areas.

What are the named parishes for St Thomas More High School?

Baptised Catholic boys who live within one of the following parishes are prioritised for places at St Thomas More High School under criterion 3:

Our Lady of Lourdes, Leigh on Sea; St. Helen’s, Westcliff on Sea; Sacred Heart, Southend on Sea; St. Georges, Shoebury; St. Peter’s, Eastwood; St. John Fisher, Prittlewell; St. Teresa’s, Rochford; Holy Family, South Benfleet; Our Lady of Ransom, Rayleigh and Our Lady of Canvey, Canvey Island.

What are the feeder schools for St Thomas More High School?

Boys who attend an Assisi Catholic Trust Primary School are prioritised for places at St Thomas More High School under criterion 5. These namely cover Our Lady of Lourdes Catholic Primary School and Nursery, Leigh on Sea; St. Helen’s Catholic Primary School, Westcliff on Sea; Sacred Heart Catholic Primary School and Nursery, Southend on Sea; St. George's Catholic Primary School, Shoeburyness; St. Teresa’s Catholic Primary School, Rochford; Holy Family Catholic Primary School, South Benfleet; Our Lady of Ransom Catholic Primary School, Rayleigh and St Joseph’s Catholic Primary School, Canvey Island.

Atom’s top tips for 11 plus preparation

The 11 plus is designed to select the most academically able children in the country. Here are our top tips to help you and your child feel confident for exam day!

Bitesize learning

It’s important to build a good knowledge base before the 11 plus. Using a ‘little and often’ approach when learning is key – our brains encode new information more effectively when dealing with smaller ‘chunks’ of information. For children aged 10–11, child psychologists recommend regular study sessions of 20–30 minutes.

Atom Home makes learning a more enjoyable process for your child. They'll explore exciting worlds full of interactive questions, earning coins to spend in the Atom shop. Atom adapts to your child, showing them questions at just the right level of difficulty to keep them motivated.

Verbal reasoning learning path on Atom Home

Read widely

11 plus exams test your child’s ability to analyse and interpret written information. Regular reading is a great way to help your child build these skills.

Encourage them to read books from different genres and by a diverse range of authors. Increasing the variety of your child’s reading will help them understand different styles, tones and purposes. Meanwhile, reading a little every day will help widen their vocabulary, sharpen their analytical thinking, and enhance their imagination.

Refine exam technique

When your child feels confident with the topics they’ve learnt in Year 5, they’ll be ready to put their knowledge to the test.

Practice tests can help your child develop problem-solving skills and build confidence working under test conditions. They’re also a great way to consolidate learning and highlight knowledge gaps for further improvement.

With Atom Home, you'll unlock online mock tests and printable practice papers. Enjoy automatic marking and progress tracking with the online tests, and help your child get familiar with the real exam experience with printable practice papers.

Maths mock test question on Atom Home

Celebrate progress

Setting regular, achievable goals and celebrating your child’s progress – no matter how big or small – will help keep their motivation high.

Make sure to encourage a growth mindset. This means celebrating effort, as well as achievement! When your child makes mistakes or struggles to understand a particular topic, help them understand that they’ll improve through practice. Regular praise will help your child improve their resilience when tackling new and challenging topics.

No items found.
No items found.
No items found.
No items found.

Take control of your child’s 11+ preparation.

Not sure if your child is on track for the grammar school 11+? You don’t need to guess what to cover or whether they’re ready. Atom shows you exactly what to practise each week and how they’re performing, so you can stay ahead of the process without the stress.

Endorsed by grammar schools, trusted by families.

Start your free trial and help your child feel fully prepared for the 11+.

Try Atom for free