2022 California Standards for Accessible Design Guide (effective January 1, 2023)

11B-233.3.1.2 Residential dwelling units with adaptable features.

In facilities with residential dwelling units, adaptable residential dwelling units complying with Sections 11B-809.6 through 11B-809.12. shall be provided as required by Sections 11B-233.3.1.2.1 through 11B-233.3.1.2.6. Adaptable residential dwelling units shall be on an accessible route as required by Section 11B-206.

Exception: The number of required adaptable residential dwelling units shall be reduced by the number of units required by Section 11B-233.3.1.1.

11B-233.3.1.2.1 Elevator buildings.

Residential dwelling units on floors served by an elevator shall be adaptable.

11B-233.3.1.2.2 Non-elevator buildings.

Ground floor residential dwelling units in non-elevator buildings shall be adaptable.

11B-233.3.1.2.3 Ground floors above grade.

Where the first floor in a building containing residential dwelling units is a floor above grade, all units on that floor shall be adaptable.

11B-233.3.1.2.4 Multi-story residential dwelling units in buildings with one or more elevators.

In elevator buildings, facilities with multi-story residential dwelling units shall comply with the following:

1. The primary entry of the multi-story residential dwelling unit shall be on an accessible route.

2. At least one powder room or bathroom and kitchen shall be located on the primary entry level.

3. Rooms or spaces located on the primary entry level shall be served by an accessible route and comply with Sections 11B-809.6 through 11B-809.12.

11B-233.3.1.2.5 Multi-story residential dwelling units in buildings with no elevator.

In non-elevator buildings, a minimum of 10 percent but not less than one of the ground floor multi-story residential dwelling units shall be calculated using the total number of multi-story residential dwelling units in buildings on a site and shall comply with the following:

1. The primary entry of the multi-story residential dwelling unit shall be on an accessible route.

2. At least one powder room or bathroom shall be located on the primary entry level.

3. Rooms or spaces located on the primary entry level shall be served by an accessible route and comply with Sections 11B-809.6 through 11B-809.12.

11B-233.3.1.2.6 Public housing facility site impracticality.

The site impracticality tests in this section may be used to determine the number of required residential dwelling units with adaptable features in buildings without an elevator, located on sites with difficult terrain conditions or unusual characteristics.

Except as provided for in Section 11B-233.3.1.2.5, the provisions of this section do not apply to multistory dwelling units in non-elevator buildings.

11B-233.3.1.2.6.1 Single building with one common (lobby) entrance.

The following may only be used for determining required access to multifamily dwelling units, in a single building with one common (lobby) entrance, located on a site with difficult terrain conditions or unusual characteristics:

All ground floor units in non-elevator buildings shall be adaptable and on an accessible route unless an accessible route to the common (lobby) entrance is not required as determined by Test No. 1, Individual Building Test, or Test No. 3, Unusual Characteristics Test, as described in this section.

Sites where either Test No. 1 or Test No. 3 is used and it is determined that an accessible route to the common (lobby) entrance is not required, a minimum of 20 percent of the ground floor dwelling units shall comply with Section 11B-809.6, and all remaining ground floor dwelling units shall comply with the features listed in Section 11B-233.3.1.2.6.2 unless exempted by Test No. 3, Unusual Characteristics Test.

Test No. 1 -- Individual Building Test may only be used if the site has terrain over 15 percent slope.

Test No. 3 -- Unusual Characteristics Test may be used if applicable.

Provisions to Test Nos. 1 and 2. Where a building elevator is provided only as means of creating an accessible route to dwelling units on a ground floor, the building is not considered to be an elevator building for purposes of this code; hence, only the ground floor dwelling units would be covered.

11B-233.3.1.2.6.2 Test number one, individual building test.

It is not required by this code to provide an accessible route when the terrain of the site is such that both of the following apply:

1. The slopes of the undisturbed site measured in a straight line between the planned entrance and all vehicular or pedestrian arrival points within 50 feet (15,240 mm) of the planned entrance exceed 15 percent; and

2. The slopes of the planned finished grade measured between the entrance and all vehicular or pedestrian arrival points within 50 feet (15,240 mm) of the planned entrance also exceed 15 percent.

If there are no vehicular or pedestrian arrival points within 50 feet (15,240 mm) of the planned entrance, the slope for the purposes of Test No. 1 will be measured to the closest vehicular or pedestrian arrival point. For purposes of these requirements, vehicular or pedestrian site arrival points include public or resident parking areas, public transportation stops, passenger loading zones and public streets or sidewalks. To determine site impracticality, the slope would be measured at ground level from the point of the planned entrance on a straight line to:

1. Each vehicular or pedestrian arrival point that is within 50 feet (15,240 mm) of the planned entrance, or

2. If there are no vehicular or pedestrian arrival points within the specified area, the vehicular or pedestrian arrival point closest to the planned entrance.

In the case of sidewalks, the closest point to the entrance will be where a public sidewalk entering the site intersects with the walk to the entrance. In the case of resident parking areas, the closest point to the planned entrance will be measured from the entry point to the parking area that is located closest to the planned entrance.

11B-233.3.1.2.6.3 Test number two, site analysis test.

For a site having multiple buildings, or a site with a single building with multiple entrances, it is not required to provide a building entrance on an accessible route to all ground floor units under the following conditions:

1. Calculate the percentage of the total buildable area of the undisturbed site with a natural grade less than 10 percent slope. The analysis of the existing slope (before grading) shall be done on a topographic survey with 2 foot (610 mm) contour intervals with slope determination made between each successive interval. The accuracy of the slope analysis shall be certified by a licensed engineer, landscape architect, architect or surveyor.

2. Determine the requirement of providing an accessible route to planned multifamily dwellings based on the topography of the existing natural terrain. The minimum percentage of ground floor units required on an accessible route shall equal the percentage of the total buildable area (not restricted-use areas, flood plains or wetlands) of the undisturbed site with an existing natural grade of less than 10 percent slope.

3. In addition to the percentage established in paragraph (2), all ground floor units in a building, or ground floor units served by a particular entrance on an accessible route defined by a calculation of the straight line slope not exceeding 8.33 percent, between their planned entrances and an arrival point, shall be on an accessible route and comply with the provisions of Section 11B-809.6.

4. All additional ground floor units in a building, or ground floor units served by a particular entrance, not on an accessible route shall comply with the features listed in Section 11B-233.3.1.2.6.5.

5. In no case shall less than 20 percent of the ground floor dwelling units be on an accessible route and comply with the provisions of Sections 11B-809.6 through 11B-809.12.

11B-233.3.1.2.6.4 Test number three, unusual characteristics test.

Unusual characteristics include sites located in a state or federally designated floodplain or coastal high-hazard areas and sites subject to other similar requirements of law or code that require the lowest floor or the lowest structural member of the lowest floor be designed to a specified level at or above the base flood elevation. An accessible route to a building entrance is impractical due to unusual characteristics of the site when:

1. The original site characteristics result in a difference in finished grade elevation exceeding 30 inches (762 mm) and 10 percent measured between an entrance and all vehicular or pedestrian arrival points within 50 feet (15 240 mm) of the planned entrance; or

2. If there are no vehicular or pedestrian arrival points within 50 feet (15 240 mm) of the planned entrance, the unusual characteristics result in a difference in finished grade elevation exceeding 30 inches (762 mm) and 10 percent measured between an entrance and the closest vehicular or pedestrian arrival point.

11B-233.3.1.2.6.5 Additional requirements..

1. Grab bar reinforcement complying with Sections 11B-809.10.5.2, 11B-809.10.6.4, or 11B-809.10.7.3.

2. Interior door opening width complying with Section 11B-404.3.1.

3. Door and gate hardware complying with Section 11B-404.2.7.

4. Door signal devices complying with Section 11B-809.8.1.

5. Door maneuvering clearance complying with Section 11B-809.8.

6. Water closet seat height complying with Section 11B-809.10.7.4.

7. Electrical receptacles, switches and controls complying with Section 11B-809.12.

8. Faucets complying with Section 11B-809.10.8.6.

9. Water closet, bathtub and lavatory maneuvering clearances complying with Section 11B-809.10.

10. Removable base cabinets complying with Section 11B-809.9.3.