Part M of the Building Regulations requires that reasonable provision is made for accessible toilets in buildings other than dwellings, where relevant types of building work are undertaken (typically the erection, extension or alteration of a building). Statutory guidance as to how that requirement can be met is contained in Approved Document M (Access to and use of buildings) Volume 2: Buildings other than dwellings. Section 5 of the Approved Document provides detailed guidance on suitable toilet and sanitary accommodation. Government has no current plans to amend these requirements, but will keep guidance on toilet provision under review.
For existing public and commercial buildings, the Equality Act 2010 places duties on building owners, employers and business operators to put in place suitable management practices and to make reasonable adjustments to physical features of buildings in order to ensure that disabled people are not placed at a disadvantage when compared to a non-disabled person. This includes consideration of the nature and availability of toilet provision.