UK Toilet Cubicle Regulations: What You Need to Know in 2025

Introduction

Specifying commercial toilet cubicles in the UK means navigating a number of overlapping regulations and standards. This guide explains the key legislation and standards you need to know in 2025 — whether you are a specifier, architect, facilities manager or contractor.

BS 6465: Sanitary Installations

BS 6465 is the primary British Standard covering sanitary installations. It has three parts: Part 1 covers the scale of provision of sanitary appliances for use in buildings; Part 2 covers space requirements; Part 3 covers pre-plumbing, drainage and water supply for sanitary appliances. For toilet provision, Part 1 is the key reference — it sets out recommended minimum ratios for different building types including offices, schools, retail and places of assembly.

Building Regulations Part T (Sanitation, Hot Water Safety and Water Efficiency)

Approved Document T of the Building Regulations covers sanitation requirements in England. It includes requirements for the number of sanitary facilities, accessibility, and the provision of accessible (unisex) toilets. Part T references BS 6465 for provision ratios. For accessible provision, Part T and BS 8300 set out the dimensional requirements for accessible cubicles and the need for at least one accessible WC in most buildings.

Workplace (Health, Safety and Welfare) Regulations 1992

The Workplace Regulations require employers to provide adequate sanitary facilities for employees. They set out minimum provision for workplaces by number of employees, and require facilities to be clean, well-lit and well-ventilated. The HSE publishes guidance (ACoP L24) on how to comply.

HTM 63: NHS Healthcare Settings

Health Technical Memorandum 63 covers joinery systems in healthcare settings — worktops, cupboards, shelving and related items. It specifies materials, construction and performance requirements for items in clinical and semi-clinical areas, with infection control as a primary concern. CGL cubicles and solid-surface worktops are the typical specification for HTM 63-compliant healthcare washrooms.

School Toilet Charter and Ofsted

The School Toilet Charter sets out expectations for school toilet provision, privacy, hygiene, supervision and accessibility. Ofsted inspectors assess toilet facilities as part of their inspection framework, and poor facilities can affect school ratings. BS 6465 provision ratios apply to schools, with separate requirements for primary and secondary settings.

Summary for Specifiers

For any commercial washroom project, specifiers should reference BS 6465 for provision ratios, Building Regulations Part T for regulatory compliance, and the relevant sector guidance (HTM 63 for healthcare, School Toilet Charter for schools). Bridgewater Direct can advise on compliance for your specific project.