Sir William Borlase’s Grammar School

Sir William Borlase’s Grammar School

Sir William Borlase’s Grammar School 11 Plus Guide

If you’re thinking about applying to Sir William Borlase’s Grammar School for your child, this guide covers everything you need to know about the 2025/2026 admissions process. From how to apply and what to expect in the entrance test to important dates and preparation advice, we’re here to guide you through each stage.

At a Glance

Assessment: GL Assessment

Fees Type: Free

Boarding: Day school

Admissions: Mixed Boys and Girls

Places per year: 150

Competition: High

Ofsted Rating: Outstanding

Introduction to

Sir William Borlase’s Grammar School

Sir William Borlase’s Grammar School (SWBGS) is a co-educational grammar school for students aged 11–18, located in Marlow, Buckinghamshire. Established in 1624, the school has a long-standing tradition of academic excellence and offers a broad curriculum that encourages creativity and critical thinking.

SWBGS is renowned for its strong emphasis on the performing arts, with facilities including a theatre, dance studios, and recording equipment. The school also excels in sports, with students competing at national levels in rowing, rugby, netball, and athletics.

Sir William Borlase’s Grammar School Key Information

In this section we regularly update information specific to Sir William Borlase’s Grammar School, to help prospective students and parents in the application process.

School Address

Full Address:

Sir William Borlase’s Grammar School, West St
Marlow
SL7 2BR

Contact Information

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Email Address enquiries@swbgs.com
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Telephone (Main Office) 01628 816500
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Website Address https://www.swbgs.com

Parking in the school

There is no parking on the school site for visitors. Parking near the school can be found below, all within a 10 minute walk.

  • West Street Parking, 71 West Street, Marlow SL7 2BS (Opening Times – Mon-Sun All Day)
  • Pound Lane Parking, Pound Lane, Marlow SL7 2UE (Opening Times – Mon-Sun All Day)
  • Riley Road Parking, Riley Road, Marlow, SL7 2NL  (Opening Times – Mon-Sun All Day)

Sir William Borlase’s Grammar School Ofsted Report

Outstanding

Latest inspection date:

1 May 2024

View Report
The quality of education Outstanding
Behaviour and attitudes Outstanding
Personal development Outstanding
Leadership and management Outstanding
Sixth-form provision Outstanding

Quick Summary

Overall rating: Outstanding

Teaching and curriculum: Outstanding

Behaviour and culture: Outstanding

Leadership and safeguarding: Outstanding

The Secondary Transfer Test (STT) Format

Sir William Borlase’s Grammar School uses the STT as it’s form of selective test. This is common to all of TBGS; every child attending a state primary school in Buckinghamshire is automatically registered for the STT.The STT is a GL 11 Plus under the GL exam board, all 13 schools which make up TBGS use the STT to select students out of. If your child attends a state-funded grammar school, they will automatically be entered into the STT for the appropriate year; registration for the STT is therefore only required where your child attended an independent school, or one outside Buckinghamshire. The content of the assessment tests beyond what is taught at primary education level; the test is designed to push candidates with the question difficulty and formatting. The unfamiliar format of the test and its difficulty can seem daunting. The 11 Plus Hero is here to help. We understand and are accustomed to the content of the test; its methodology and method of marking. We can provide a toolkit to your child, familiarising them with the test format and ensuring they have the best chance to succeed.

The STT: Overview

There are four key components to the STT, which is overseen and marked by the GL Exam Board, making it a GL 11 Plus Exam. The STT will assess candidates competency in English, Verbal Reasoning (VR), Non-verbal Reasoning (NVR) and Maths. For an in depth breakdown of the GL 11 Plus in Buckinghamshire, please visit our article ‘Selective Tests in Buckinghamshire – The GL 11 Plus Test’.

 

Overview:

The test consists of two exam papers, each taking approximately 60 minutes in length.

  • Paper One: Verbal Reasoning (VR) & English: VR and English each have their own section.
  • Paper Two: Non-verbal Reasoning (NVR) & Mathematics: NVR will include Spatial Reasoning (SR) too, and will have its own section. Maths will have its own section.

 

TBGS GL 11 Plus Test: Pass Criteria

Test scores are received by October for the following year of entry.  It is notable that younger children are not penalised for their age, the results are statistically standardised to compare any child’s score average to the average score of their school year. Further, there is no ‘pass mark’, for the STT; instead, admission is based on whether a candidate has met a ‘qualifying score’. This is the minimum aggregate score received upon sitting the STT that a child must receive in order to be eligible for admission to Sir William Borlase’s Grammar School. However, the ‘qualifying mark’ can vary from year to year. Although the qualifying mark cannot be predicted, it is estimated that the top 25% of students will achieve the qualifying mark 

Paper 1:

English and Verbal Reasoning (each with their own section)

Paper 2:

Maths and Non-verbal Reasoning (each with their own section)

The STT for TBGS entry - GL 11 Plus Assessment Criteria

English Maths Verbal Reasoning Non-verbal Reasoning Additional

Catchment Area

Sir William Borlase’s Grammar School uses a catchment area in its eligibility and oversubscription criteria. This catchment area can be found on the school website at https://www.swbgs.com/attachments/download.asp?file=9&type=pdf ; it is used within the school’s oversubscription criteria, as children living in this catchment area will be prioritised.

 

Oversubscription criteria:

Where the number of eligible admissions exceeds the number of places at Dr Challoner’s School, offers for a place at the school are made on a tiered basis. As a general rule, the prerequisite to meet the “qualifying score” still must be met, or the child must qualify for the school through a Selection Review. A summarised version of the oversubscription criteria is below. However, it is advisable that you read the whole oversubscription criteria, found in the 2023 Admissions Policy at https://www.swbgs.com/attachments/download.asp?file=1089&type=pdf 

 

  1. A Looked After or Previously Looked After* child who has received a score of at least 110 in the STT (children falling into this category therefore don’t have to meet the prerequisite score of 121);
  2. Up to a maximum of 10 places for children attracting the Pupil Premium**, living in the catchment area, who scored between 110 and 120 on the STT (children falling into this category do not have to meet the prerequisite standard of 121). In the event that more than 10 children fall into this category, priority is given to children who live closest to the school;
  3. Children eligible for Free School Meals, who score 121 on the STT or qualify to the school through a Selection Review;
  4. A maximum of 15 places for children who live in the school’s Priority Admissions area (outlined in the catchment map) and who have lived there since October of the preceding year of entry;
  5. Eligible children of staff where the member of staff has been employed there for 2 or more years, or the member of staff has been employed to fill a vacant post for which there is a demonstrable skill shortage;
  6. Children living in the catchment area of the school on October of the preceding year of entry;
  7. Siblings of children in years 7 to 12 who are on roll of the school at the time allocations are made and who are expected to be on the roll of the school at the time of proposed admission;
  8. Children who have exceptional medical or social needs which can only be met at the school;
  9. Once the above rules have been applied, any further places are offered in distance order;

 

Additional Eligibilities:

  • 10 of the 150 places in Year 7 are prioritised to students who are eligible for the Pupil Premium** and who are living in the schools catchment area of October of the preceding year of entry, whose score would not otherwise qualify them for admission.
  • The score must be an aggregate score of at least 110 on the STT. 
  • These places must be applied for by October of the preceding year of entry for first priority. If they’re not applied for, they will be allocated using the rules, in their order of priority, in the oversubscription criteria.

 

*A Looked After or Previously Looked After boy is one who is in or has previously been in state authority care.

**A child eligible for free school meals must be eligible for them from 31st October of the preceding year of entry, and must remain eligible at the date of entry.

 

For a full and detailed breakdown of the admissions process and to understand which category your child falls into, please visit the school’s 2023 admissions policy at https://swbgs.com/attachments/download.asp?file=1089&type=pdf  

Preparing for the 11 Plus Test at Sir William Borlase’s Grammar School

Here are some ways you can help your child prepare for the test.

School-specific 11 Plus revision

Prepare your child for the 11 Plus with a school-specific 11 Plus Essentials Pack, created to reflect Sir William Borlase’s Grammar School’s entrance assessment style.

Each pack includes carefully selected guides and 11 Plus revision papers covering the subjects assessed in the entrance test, helping your child focus their preparation on the most relevant areas.

Designed to support effective home study, the pack can be used independently or alongside tutoring to build confidence and strong exam technique.

Sir William Borlase's Grammar School Essentials Pack

Useful Tips

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Start Early

Begin preparation in Year 4 or early Year 5 to build skills gradually and avoid unnecessary pressure later on.

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Use Exam Papers

Timed practice papers help your child get used to the test format and develop strong exam technique.

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Target Weak Areas

Identify the subjects or question types your child finds most difficult and dedicate extra time to improving them.

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Encourage Daily Reading

Regular reading strengthens vocabulary, comprehension and critical thinking — all vital for success in the 11 Plus at Sir William Borlase’s Grammar School.

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Make Use of Online Resources

Digital tools can provide tailored practice, instant feedback and engaging activities to make preparation more effective.

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Best Chance of Success

Consistent, structured preparation will help your child feel confident, organised and ready to perform at their best in the test.

COMING SOON

11 Plus Mock Exams in Your Area

We are working on setting up local test centres to offer in-person 11 Plus mock exams that closely replicate the format used by Sir William Borlase’s Grammar School. These sessions will allow pupils to experience real exam conditions, helping to build both confidence and performance. Although this service is not yet available, you can register your interest using the form below, and we will get in touch as soon as mock exams are offered in your area.

Sir William Borlase’s Grammar School’s Key Dates and Application Information

The application process to all of TBGS, Sir William Borlase’s inclusive, require adherence to the deadlines put in place by Buckinghamshire Council and the school. For this reason, 11 Plus Hero updates information on the school and Buckinghamshire Council, for parents to keep track.

Registration for STT Opens

2 May 2025
Date passed

Registration Deadline

13 June 2025
Date passed

Practice Test

9 September 2025
Date passed

STT

11 September 2025
Date passed

Open Evening

24 September 2025
Date passed

Results Sent to Parents

10 October 2025
Date passed

Common Application Form Deadline

31 October 2025
Date passed

Offer Day

2 March 2026
3 days to go
How to Apply

Sir William Borlase’s Grammar School Application Process

To apply for a Year 7 place there are three steps.

1

Admissions Policy 2026

Make sure to read the Sir William Borlase’s Grammar School Admissions Policy PDF so you and your child are fully informed about the application process and eligibility requirements.

View Admissions Policy
2

Secondary Transfer Test (STT) Registration

You must complete the online registration between 2nd May and 13th June 2025 for your child to sit the Buckinghamshire Secondary Transfer Test. Late applications will not be accepted except in exceptional circumstances.

Visit Registration Website
3

Common Application Form (CAF)

The CAF must be submitted to your Local Authority by 31st October 2025, with Sir William Borlase’s Grammar School listed as one of your preferences. Both the STT registration and the CAF must be completed; failure to submit either will result in an incomplete application.

Sir William Borlase’s Grammar School FAQs

  • There is no official ‘pass mark’ for Sir William Borlase’s Grammar School. Instead, results are compared against the “qualifying score”. This is the minimum requirement for admission to Sir William Borlase’s Grammar School.
  • Sir William Borlase’s Grammar School is one of the 13 grammar schools which make up TBGS in Buckinghamshire; students are selected based on their performance in the Secondary School Transfer Test (STT). This entrance test is sat under the GL 11 Plus exam board; GL 11 Plus exam papers are multiple choice, and test a child’s competence in English, Maths, Verbal and Non-verbal reasoning.

All children who attended a state funded primary school under Buckinghamshire council will automatically be entered into the STT for their allotted year. If your child attended an independent school, or a school outside of Buckinghamshire, you will need to register them for the STT via the council website.

Schools Nearby

25 schools found within 25 miles of Marlow


Sir William Borlase's Grammar School

Sir William Borlase’s Grammar School, West St, Marlow
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
0.2 Miles Away High Competition View School

John Hampden Grammar School

John Hampden Grammar School, Marlow Hill, High Wycombe
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Boys Only
3.2 Miles Away High Competition View School

Wycombe High School

Wycombe High School, Marlow Road, High Wycombe
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Girls Only
3.3 Miles Away High Competition View School

Royal Grammar School

Royal Grammar School, Amersham Rd,, High Wycombe
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school, Boarding
Admissions: Boys Only
5.1 Miles Away High Competition View School

Burnham Grammar School

Burnham Grammar School, Hogfair Ln, Slough
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
6 Miles Away High Competition View School

Beaconsfield High School

Beaconsfield High School, Wattleton Road, Beaconsfield
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Girls Only
6.1 Miles Away High Competition View School

Herschel Grammar School

Herschel Grammar School, Northampton Avenue, Slough
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
7.9 Miles Away High Competition View School

Upton Court Grammar School

Upton Court Grammar School, Lascelles Rd, Slough
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
9.7 Miles Away High Competition View School

St Bernard's Catholic Grammar School

St Bernard’s Catholic Grammar School, 1 Langley Road, Slough
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
9.9 Miles Away High Competition View School

Dr Challoner's Grammar School

Dr Challoner’s Grammar School, Chesham Rd, Amersham
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Boys Only
10.1 Miles Away Medium Competition View School

Langley Grammar School

Langley Grammar School, Reddington Drive, Slough
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
10.9 Miles Away High Competition View School

Dr Challoner's High School

Dr Challoner’s High School, Cokes Ln,, Little Chalfont
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Girls Only
11 Miles Away High Competition View School

Reading School

Reading School, Reading
Assessment: FSCE
Fees Type: Free
Boarding: Day school, Boarding
Admissions: Boys Only
11.6 Miles Away Medium Competition View School

Kendrick School

Kendrick School, Reading
Assessment: Individual
Fees Type: Free
Boarding: Day school
Admissions: Girls Only
11.6 Miles Away View School

Chesham Grammar School

Chesham Grammar School, White Hill, Chesham
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
12.1 Miles Away High Competition View School

St Clement Danes School

St Clement Danes School, Chenies Road, Chorleywood
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
12.9 Miles Away View School

Rickmansworth School

Rickmansworth School, Scots Hill, Rickmansworth
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
14.7 Miles Away View School

Aylesbury High School

Aylesbury High School, Walton Rd, Aylesbury
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Girls Only
16.6 Miles Away High Competition View School

Aylesbury Grammar School

Aylesbury Grammar School, Walton Rd, Aylesbury
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Boys Only
16.8 Miles Away High Competition View School

Sir Henry Floyd Grammar School

Sir Henry Floyd Grammar School, Oxford Rd, Aylesbury
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
16.8 Miles Away High Competition View School

Queens' School Hertfordshire

Queens' School Hertfordshire, Aldenham Road, Bushey
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
18.5 Miles Away View School

Parmiter's School

Parmiter's School, High Elms Lane, Garston, Nr. Watford
Assessment: GL Assessment
Fees Type: Free
Boarding: Day school
Admissions: Mixed Boys and Girls
18.9 Miles Away View School

Tiffin Girls’ School

Tiffin Girls’ School, Richmond Road, Kingston upon Thames
Assessment: Individual
Fees Type: Free
Boarding: Day school
Admissions: Girls Only
22.8 Miles Away Very-high Competition View School

Tiffin School

Tiffin School, Queen Elizabeth Road, Kingston-upon-Thames
Assessment: Individual
Fees Type: Free
Boarding: Day school
Admissions: Boys Only
23.5 Miles Away High Competition View School

Queen Elizabeth's School Barnet

Queen Elizabeth's School, Queen's Road, Barnet
Assessment:
Fees Type: Free
Boarding: Day school
Admissions: Boys Only
24.9 Miles Away View School