English regulations regarding access and use in buildings are mainly gathered in Approved Document M. This file suggests the following in relation to baby changing facilities:
- Sanitary facilities should be available to everybody, including users of either gender with babies.
- Wheelchair-accessible unisex toilets should not be used for baby changing.
- An enlarged cubicle 1200mm wide in a separate-sex toilet washroom could benefit parents with children, among other users; besides other fittings like bathroom grab rails, one should consider to install a fold-down table inside such a compartment.
- In large buildings, it is "desirable" to provide separate facilities for baby changing.
With similar suggestions, Irish booklets on the matter add:
- Hand washing and drying facilities should be provided adjacent to the baby changers, along with nappy disposal bins, and a shelf or table for personal belongings.
- An accessible place for breast-feeding (separate from the toilet facilities) should be furnished wherever space allows so. It is expected to be equipped with a comfortable chair and have room for a large pram or pushchair.
Please, read the source texts or consult a professional to confirm this information.