Multi-story housing (buildings of 4 or more stories containing 10 or more dwelling units, as defined in 106.5) shall comply with 233.6.
All common use and public use spaces on all floors (levels) shall be accessible in compliance with the applicable requirements of this Code. Entrance doors to all individual dwelling units shall comply with 404.
All site improvements shall be accessible, including an accessible route from the public sidewalk, public transportation facilities and/or parking, if provided, to and through an accessible entrance.
A permanent audible and visual emergency warning system complying with 702 shall be provided in all public use and common use areas. Permanent or portable audible and visual emergency warning systems shall be installed on an as-needed basis at the request of an occupant with a disability in a minimum of 20% of all units in the building, but not less than one of each type or class of unit provided. If a permanent system is provided, the visual emergency warning system shall be arranged so the flashing light beam is visible in all rooms of the dwelling unit.
The owner shall provide not less than 20% of the dwelling units as adaptable. Either the accessible or adaptable dwelling units shall be distributed throughout the building to provide a variety of sizes and locations.
Adaptable dwelling units shall be designed and constructed so they may, upon application by the occupant, be converted to accessible units, with a minimum of structural changes, to meet the needs of individuals with different types or degrees of disability, and to comply with 812. Costs of conversion for the individual with a disability shall be borne by the owner.
An accessible route conforming to Chapter 4 shall be provided into and within all private patios, terraces, balconies, carports and garages designated for use by adaptable dwelling units.
Bathrooms in adaptable dwelling units shall comply with the space requirements of 812.3. Bathrooms shall be designed to allow, when converted to accessible units, for the installation of grab bars, water closets, toilet paper dispensers, mirrors, medicine cabinets, under-lavatory cabinets, in-tub or head-end bathtub seats, faucets, controls, pipe insulation, shower seats, and shower spray units without structural changes to the walls, floors or ceilings.
Dwelling units consisting of two stories are exempt from requirements for adaptability, as defined herein, if the required proportion of adaptable dwelling units required by 233.6 is met by other types of units distributed throughout the building; or, if accessibility to the second floor can be provided by the owner by the installation of a limited-use/limited-application elevator (LULA) complying with 408, a private residence elevator complying with 409 or a platform lift complying with 410 when appropriate and approved by administrative authorities.