@Keeptoiletssafe For LEA-supported schools in England, it's Regulation 4 of the School Premises Act 2012, https://www.legislation.gov.uk/uksi/2012/1943/regulation/4/made
- Subject to paragraph (3), suitable toilet and washing facilities must be provided for the sole use of pupils.
- Separate toilet facilities for boys and girls aged 8 years or over must be provided except where the toilet facility is provided in a room that can be secured from the inside and that is intended for use by one pupil at a time.
- Where separate facilities are provided under paragraph (1) for pupils who are disabled, they may also be used by other pupils, teachers and others employed at the school, and visitors, whether or not they are disabled.
- Suitable changing accommodation and showers must be provided for pupils aged 11 years or over at the start of the school year who receive physical education.
For the Independent sector you want Regulation 23 of The Education (Independent Schools Standards) Regulations, 2014
- Subject to sub-paragraph (2), the standard in this paragraph is met if the proprietor ensures that-suitable toilet and washing facilities are provided for the sole use of pupils;
- separate toilet facilities for boys and girls aged 8 years or over are provided except where the toilet facility is provided in a room that can be secured from the inside and that is intended for use by one pupil at a time; and
- suitable changing accommodation and showers are provided for pupils aged 11 years or over at the start of the school year who receive physical education.
It's the DfE guidance document, Advice on Standards for School Premises, last updated March 2015, where we can see sloppy thinking & language from the DfE fostering confusion & error;
General planning
Toilet facilities need to be planned and designed so that:
- hand washing facilities are provided within or in the immediate vicinity of every toilet;
- the rooms containing them are adequately ventilated and lit;
- they are located in areas around the school that provide easy access for pupils and allow for informal supervision by staff, without compromising pupils’ privacy.
Where there is unisex provision, the privacy of the occupant needs to be ensured and this will be achieved by, for example, having adequate enclosure and a full height door.
On devolved arrangements I'm as puzzled as you.
Many apologies if any of this constitutes an egg-sucking lesson!
ETA, In case anyone was wondering, the Secretary of State for Education in March 2015 was Nicky Morgan.