Based on notes provided by Cassie Herschel-Shorland, Access and Museum Design Consultant www.cassiehs.com, via the GEM list:
The following provision is recommended and to meet the requirements of the current Building Regulations (for England):
- at least one wheelchair user accessible unisex WC should be provided at each location where there standard male/female WCs are provided;
- also at least one cubicle in the standard male and female WCs with extra space (by providing an outward opening doors) and weight bearing grab-rails, plus a lower height washbasin/drier option;
- where there is only space for 1 WC within a building then make this an accessible unisex type but with greater width to accommodate a standing height basin in addition to the wall-hung hand wash basin;
There are other considerations such as:
- provide an accessible WC on each floor and within 40m of any area of activity/work (if there is a lift then each alternate floor may be acceptable but only if there are no additional physical barriers en-route and within 40m);
- if there are 4 or more standard WC cubicles in the standard male/female WCs then make one an enlarged cubicle;
- locate at least 1 accessible WC close to the building entrance and facilities such as café/waiting area;
- locate WCs consistently on multi-storey buildings;
- where there is more than 1 accessible WC provide alternate transfer sides.
What you can implement will depend on whether you are referring to an existing building, alteration or a new-build; also the extent of alteration planned, permissions required (such as listed building consent) and location of services and what is reasonable/practicable to do.
For detail on layout and fittings do refer to the following or advise whoever is responsible for this (architect, builder, operations?) to do so.
The Building Regulations Approved Document M – Access to and Use of Buildings
Office of the Deputy Prime Minister, 2004 edition (incorporating 2010 and 2013 amendments)
BS 8300:2009+A1:2010 Design of Buildings and their approaches to meet the needs of disabled people – Code of Practice. The British Standards Institution, 2010 ( available to purchase from BSI)
For children the following may be useful:
Building Bulletin 102: Designing for disabled children and children with special educational needs
Also consider multi-faith provision and wash facilities.