Residential dwelling units that must meet the design requirements of the Fair Housing Act are referred to as “covered units”. The ANSI A117.1 Type B dwelling unit is equivalent to a “covered unit”.
All of the bathrooms within a covered unit shall meet the following requirements:
- be on an accessible route,
- have 32″ nominal clear width doorways (a 34″ door will suffice),
- have switches, outlets, and controls in accessible locations,
- have reinforcing around toilets, tubs, and showers for the future installation of grab bars.
Powder rooms (toilet rooms without a bathtub or shower) shall comply with all of the above except the reinforcement in the walls is not required.
In addition to these 4 requirements, the bathrooms must comply with the clear floor space requirements of either Specification A or Specification B. If Spec A is selected, the clear floor spaces apply to all of the bathrooms in the unit and each fixture in those bathrooms. If Spec B is selected, the clear floor spaces apply to just one bathroom and to just one of each type of fixture in the bathroom.
In both Spec A and Spec B bathrooms, clear floor space is required at the lavatory, water closet, bathtub and a 30″ by 48″ clear floor space must be provided beyond the swing of the door so that the user can enter and close the door.
Spec B bathrooms require a bit more clear floor space and are usually larger than Spec A bathrooms. The most noticeable difference is that in a Spec B bathroom a parallel approach clear floor space is required at the control end of the bathtub.
If there is only one bathroom in a dwelling unit, it is permissible to use either Spec A or Spec B.
The following pages are taken from the Fair Housing Act Design Manual
Specification A Example: fairch7 36
Specification B Example: fairch7 37
Powder Room Example: fairch7 38
Note that if a powder room is the only toilet facility on the entry level of a covered multi-story unit, it must have reinforcing in the walls and conform to either the Spec A or Spec B requirements.