What are the regulations for school toilets in the UK?

Most questions about school toilets come down to three things: who must have separate facilities, how many toilets a school needs, and which building rules apply when you refurbish. The answers are shorter than people expect, because the law says less than many assume and leaves the detail to guidance.

This guide covers England, where most of the rules sit in one regulation. Scotland and Wales have their own school premises rules, so check those if you are outside England.

The one regulation that matters

The School Premises (England) Regulations 2012 cover maintained schools. Regulation 4 deals with toilets and washing facilities, and it does four things:

1. Pupils must have suitable toilet and washing facilities for their sole use.
2. Separate toilet facilities must be provided for boys and girls aged eight or over, except where a toilet is in a room that can be secured from the inside and is meant for one pupil at a time.
3. Facilities provided for disabled pupils may also be used by other pupils, staff and visitors.
4. Pupils aged 11 or over who take part in PE need suitable changing rooms and showers.

Academies and free schools are covered by matching wording in the independent school standards, so the same rules apply whatever the school’s status.

What “for their sole use” means

Pupil toilets should not double as staff or visitor toilets. Staff need their own. The exception is accessible toilets, which the regulation allows anyone to use.

What “secured from the inside” means

This is the key to unisex designs. A row of cubicles with gaps above and below is not a room. A fully enclosed toilet with floor-to-ceiling walls and a door that locks from the inside is. We cover this in our guide to unisex toilets in schools.

How many toilets a school needs

The regulations do not give a number. DfE’s non-statutory advice, Standards for school premises, offers example ratios instead:

So a primary of 210 pupils with a 26-place nursery would be about 14 toilets on these figures, and a 1,500-pupil secondary about 75. The advice is clear that these are examples, not minimums. A school with short, staggered breaks and well-spread blocks may manage with fewer; a split site with one block at the far end may need more. Our cost planner works the numbers for your roll.

Urinals are commonly counted towards the total for boys. Many trusts now prefer fewer urinals and more enclosed cubicles, because cubicles work for everyone and are easier to supervise.

Washbasins and water

DfE advice says washing facilities should be in, or right next to, every toilet area, with hot and cold water. Hot water at the tap must not pose a scalding risk, and it gives 43°C as the usual maximum for nursery and primary basins. In practice that means a thermostatic mixing valve on the supply to pupil basins and troughs.

Accessible toilets

DfE advice describes an accessible toilet as a room with its own toilet and washbasin (and possibly a shower), with a lockable door that opens onto circulation space rather than a stair, and a reasonable travel distance from where pupils learn. Many schools also have pupils who need a hygiene room with a changing bench and hoist. These sit outside the general ratios and depend on your pupils’ needs; your SENCo and the pupils’ care plans are the starting point.

Does Part T of the Building Regulations apply?

No. Part T, which came into force in England on 1 October 2024, requires single-sex toilets in many new non-domestic buildings. The amending regulations expressly exclude schools as defined in the Education Act 1996, and early years premises. Schools follow the School Premises Regulations instead.

Other Building Regulations still apply to the building work itself. New drainage, a new ventilation system or a change to fire routes may need building control approval, while swapping sanitaryware like for like usually does not. Your contractor or designer should tell you which applies to your scheme before work starts.

What inspectors and parents notice

None of this is in the regulations, but it is what drives complaints:

• Privacy. Gaps at cubicle hinges and locks, broken bolts and doors that do not close.
• Smell. Usually ventilation or failing seals and traps, not cleaning.
• Supervision. Long corridors into blocks staff cannot see.
• Avoidance. Pupils who will not use the toilets all day, which affects health and learning.

A good refurbishment answers all four. See what good school toilets get right.

The short version

Separate toilets for boys and girls from age eight, unless each is a single lockable room. About one toilet per 20 pupils aged five and over, and one per 10 under five, as a guide rather than a rule. Basins next to every toilet area, with warm water capped at about 43°C for younger pupils. Part T does not apply to schools. When you plan a refurbishment, start from these and then design for privacy, supervision and cleaning.

Planning a school toilet refurbishment to meet these rules? Send us the brief.