PART T · Toilet accommodation
Part T building regulations explained
Part T concerns toilet accommodation in relevant buildings other than dwellings. It addresses the provision and arrangement of single-sex and universal toilets. It is separate from Part M accessibility and Part G sanitation.
What does Part T require
The requirement calls for reasonable provision of male and female single-sex toilets, or universal toilets where space precludes that provision. Universal toilets may also be provided in addition to single-sex facilities.
The layout should follow a justified approach for the building rather than a general preference applied without assessing the requirement.
Which buildings are covered
Check the proposed new building or relevant material change of use and the statutory limits. Part T has specific exclusions, including schools, relevant early years premises, certain custodial accommodation and relevant en-suite facilities.
Do not describe it as a rule for every existing toilet or for ordinary bathrooms in houses.
What is a universal toilet
It is a fully enclosed, self-contained facility for use by either sex, with the relevant washing and drying facilities within it. A cubicle opening into a shared handwashing area is not automatically equivalent.
The complete arrangement matters, including privacy, fittings and appropriate signage.
Does Part T decide toilet numbers
The guidance expressly distinguishes its arrangement requirements from the number of toilets and access to them. Other provisions and relevant standards need checking for those matters.
An accessible toilet under Part M is also not automatically interchangeable with every Part T facility.
What should be agreed before fitting out
Ask the designer to identify the scope, any exclusion and the complete sanitary layout. Coordinate Part T with Parts G, M, F and H where relevant.
Use finished dimensions and allow space for equipment. A compliant-looking sketch can become an unsuitable room after ducts, service boxing and fittings are added.