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Back to Medway

Sir Joseph Williamson's Mathematical School

Rochester, ME1 3EL

Boys

Ofsted: Outstanding

A boys' grammar school on Maidstone Road in Rochester, part of Leigh Academies Trust, that admits girls into its sixth form. Rated Outstanding by Ofsted in every area, including sixth form (March 2023). Admits through the Medway Test.

Key Information

School Type

Boys

Age Range

11-18

Sixth Form

Yes

Year 7 Places

~203

Founded

1701

DfE Number

887/4530

Ofsted Rating

Outstanding

Last inspected: March 2023

Ofsted ratings are based on inspections of schools. For the full inspection report, visit the Ofsted reports website.

11+ Admissions

Exam Board: GL Assessment

GL Assessment is the most widely used 11+ test provider in England. Tests are multiple-choice format and assess English, Mathematics, Verbal Reasoning, and Non-Verbal Reasoning. GL tests follow a structured, predictable format which can make preparation more straightforward. Since CEM stopped offering paper-based 11+ tests in 2023, GL has become the dominant exam board.

English

Mathematics

Verbal Reasoning

Non-Verbal Reasoning

Key Dates for Medway

Registration Opens
18 May 2026
Registration Deadline
12 June 2026
Test Date
15-16 September 2026

School Application Deadline
31 October 2026

Confirmed Medway Council dates for September 2027 entry; out-of-Medway pupils sit on 19-20 September 2026. Register on the Medway Parent Portal; verify at medway.gov.uk.

School Website

Visit Official Website

Location

Rochester

ME1 3EL

Medway

View on Map

Local Authority

Medway Council

Admissions Info

Other Schools in Medway

Chatham Grammar School

Girls

Good

Fort Pitt Grammar School

Girls

Outstanding

Holcombe Grammar School

Boys

Good

Rainham Mark Grammar School

Co-educational

Good

View All Medway Schools

Important Information

This profile is compiled from publicly available sources including the Department for Education (DfE), official school websites, local authority admissions portals, and Ofsted inspection reports. Data was last verified in December 2025.

Disclaimer: Information may change without notice. Admission criteria, test dates, and policies are subject to annual updates. Always verify details directly with Sir Joseph Williamson's Mathematical School before making decisions. From September 2024, Ofsted no longer provides overall effectiveness ratings for state schools.

Continue Your Learning Journey

Complete 11 Plus Syllabus

36 topics, 125 question types and 128 worked examples covering every 11+ subject and exam board.

11+ Mock Exams

Full-length mock exams in GL and CEM format under realistic exam conditions.

11+ Preparation Guide

Year-by-year preparation guide for Year 3, Year 4 & Year 5 with study schedules and expert strategies.

FSCE Exam Guide

Understand the new FSCE 11+ exam format, which schools use it, and how it compares to GL & CEM.