11B-233 Public Housing Facilities — 2025 Building Code (CBC)

11B- 233.1 General. Public housing facilities with residential dwelling units shall comply with Section 11B-233. See Chapter 2, Section 202 of this code for the definition of Public Housing.

11B- 233.2 Reserved.

11B- 233.3 Public housing facilities. Public housing facilities with residential dwelling units shall comply with Sections 11B- 233.3 and 11B-809.

Note: Senior citizen housing may also be subject to Civil Code, Division 1. Part 2. Sections 51.2, 51.3 and 51.4.

11B- 233.3.1 Minimum number: new construction. Newly constructed facilities with residential dwelling units shall comply with Section 11B- 233.3.1.

Exception: Where facilities contain 15 or fewer residential dwelling units, the requirements of Sections 11B- 233.3.1.1 and 11B- 233.3.1.3 shall apply to the total number of residential dwelling units that are constructed under a single contract, or are developed as a whole, whether or not located on a common site.

11B- 233.3.1.1 Residential dwelling units with mobility features. In facilities with residential dwelling units, at least 5 percent, but no fewer than one unit, of the total number of residential dwelling units shall provide mobility features complying with Sections 11B-809.1 through 11B- 809.4 and shall be on an accessible route as required by Section 11B- 206 .

11B-233.3.1.2 Residential dwelling units with adaptable features. In buildings with three or more residential dwelling units, adapt- able residential dwelling units shall comply with Section 11B-809.6 and 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. A residential building with one or more elevators shall have an elevator serve all floors with a residential dwelling unit primary entrance and all floors with common use areas. Elevators shall comply with Section 11B-407. Residential dwelling units on floors served by an elevator shall be adaptable.

Exceptions:

1. A building with only an elevator that serves a parking garage or building entry level not containing residential dwelling units to the first ground floor above grade containing residential dwelling units.

2. A building with a multi-story residential dwelling unit with an elevator within the unit.

11B-233.3.1.2.2 Ground floor residential dwelling units. Ground floor residential dwelling units shall be adaptable. A building may have one or more ground floors.

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 Multistory residential dwelling units in buildings with one or more elevators. In elevator buildings, facilities with multistory residential dwelling units shall comply with the following: 1. The primary entry of the multistory residential dwelling unit shall be on an accessible route on the floor served by the elevator.

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 Multistory 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 multistory residential dwelling units shall be calculated using the total number of multistory residential dwelling units in buildings on a site and shall comply with the following: 1. The primary entry of the multistory 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 deter- mine 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.

ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMMODATIONS, COMMERCIAL BUILDINGS AND PUBLIC HOUSING

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-233.3.1.2.6.5 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 topog- raphy 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-34 2025 CALIFORNIA BUILDING CODE

ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMMODATIONS, COMMERCIAL BUILDINGS AND PUBLIC HOUSING

11B-233.3.1.2.6.5 Additional requirements. In buildings without elevators and where site impracticality test numbers one, two or three reduce the required number of residential dwelling units with adaptable features, the remaining units shall provide the following: 1. Grab bar reinforcement complying with Section 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-404.2.3. 3. Door and gate hardware complying with Section 11B-404.2.7. 4. Door signal devices complying with Section 11B-809.8.4. 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.

11B- 233.3.1.3 Residential dwelling units with communication features. In public housing facilities with residential dwelling units, at least 2 percent, but no fewer than one unit, of the total number of residential dwelling units shall provide communication features complying with Section 11B- 809.5.

11B- 233.3.2 Residential dwelling units for sale. Residential dwelling units designed and constructed or altered by public entities that will be offered for sale to individuals shall provide accessible features to the extent required by this chapter.

11B-233.3.2.1 Buyer identified residential dwelling units for sale. The requirements of Section 11B-233.3.2 also apply to hous- ing programs that are operated by public entities where design and construction of particular residential dwelling units take place only after a specific buyer has been identified. In such programs, the covered entity must provide the units that comply with the requirements for accessible features to those pre-identified buyers with disabilities who have requested such a unit.

11B- 233.3.3 Additions. Where an addition to an existing building results in an increase in the number of residential dwelling units, the requirements of Section 11B- 233.3.1 shall apply only to the residential dwelling units that are added until the total number of residential dwelling units complies with the minimum number required by Section 11B- 233.3.1. Residential dwelling units required to comply with Sections 11B- 233.3.1.1 and 11B-233.3.1.2 shall be on an accessible route as required by Section 11B- 206 .

11B- 233.3.4 Alterations. Alterations shall comply with Section 11B- 233.3.4.

Exception: Where compliance with Section 11B- 809.2, 11B- 809.3 or 11B- 809.4 is technically infeasible, or where it is technically infeasible to provide an accessible route to a residential dwelling unit, the entity shall be permitted to alter or construct a comparable residential dwelling unit to comply with Sections 11B- 809.2 through 11B- 809.4 provided that the minimum number of residential dwelling units required by Sections 11B- 233.3.1.1 and 11B-233.3.1.3, as applicable, is satisfied.

11B- 233.3.4.1 Alterations to vacated buildings. Where a building is vacated for the purposes of alteration, and the altered building contains more than 15 residential dwelling units, at least 5 percent of the residential dwelling units shall comply with Sections 11B- 809.2 through 11B- 809.4 and shall be on an accessible route as required by Section 11B- 206. In addition, at least 2 percent of the residential dwelling units shall comply with Section 11B- 809.5.

11B- 233.3.4.2 Alterations to individual residential dwelling units. In individual residential dwelling units, where a bathroom or a kitchen is substantially altered, and at least one other room is altered, the requirements of Section 11B- 233.3.1 shall apply to the altered residential dwelling units until the total number of residential dwelling units complies with the minimum number required by Sections 11B- 233.3.1.1 and 11B-233.3.1.3. Residential dwelling units required to comply with Section 11B- 233.3.1.1 shall be on an accessible route as required by Section 11B- 206 .

Exception: Where facilities contain 15 or fewer residential dwelling units, the requirements of Sections 11B- 233.3.1.1 and 11B-233.3.1.3 shall apply to the total number of residential dwelling units that are altered under a single contract, or are developed as a whole, whether or not located on a common site.

11B-233.3.4.3 Alterations to residential dwelling units with adaptable features. The building standards for residential dwell- ing units with adaptable features do not apply to the alteration, repair, rehabilitation or maintenance of residential dwelling units constructed for first occupancy on or prior to March 13, 1991. Multifamily dwelling units with adaptable features constructed for first occupancy after March 13, 1991 shall be maintained in compliance with the accessibility standards in effect at the time of construction.

Exception: Where any portion of a building’s exterior is preserved, but the interior of the building is removed, including all struc- tural portions of floors and ceilings and a new building is constructed behind the existing exterior, the building is considered a new building for determining the application of this chapter.

11B- 233.3.5 Dispersion. Residential dwelling units required to provide mobility features complying with Sections 11B- 809.2 through 11B- 809.4 and residential dwelling units required to provide communication features complying with Section 11B- 809.5 shall be dispersed among the various types of residential dwelling units in the facility and shall provide choices of residential dwelling units comparable to, and integrated with, those available to other residents.

Exception: Where multistory residential dwelling units are one of the types of residential dwelling units provided, one-story residential dwelling units shall be permitted as a substitute for multistory residential dwelling units where equivalent spaces and amenities are provided in the one-story residential dwelling unit.

ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMMODATIONS, COMMERCIAL BUILDINGS AND PUBLIC HOUSING

11B-233.3.6 Graduate student and faculty housing at a place of education. Housing facilities that are provided by or on behalf of a place of education, with residential dwelling units leased on a year-round basis exclusively to graduate students or faculty, and that do not contain any public use or common use areas available for educational programming, are not subject to Section 11B-224 and shall comply with Section 11B-233.