Disabled Access Requirements - CBC Chapter 11B

The information below is intended to highlight the the disabled access requirements for new and existing  public buildings, public accommodations (hotels, motels and similar), commercial buildings and publicly funded housing. These types of buildings are subject to the requirements of Chapter 11B of the 2025 California Building Code (CBC). Applicants are strongly advised to higher a licensed architect or Certified Access Specialist (CASp) to help navigate the federal and State disabled access requirements. For more information about the CASp program and a list of certified specialists please visit Division of State Architects CASP program.

Newly Constructed Buildings

All areas of newly designed or newly constructed public buildings, public accommodations, commercial buildings, and publicly funded housing shall be accessible to persons with disabilities as required by Chapter 11B. Accessibility to buildings shall be provided for all occupancy classifications except as modified or enhanced by CBC Chapter 11B, but never to the exclusion of them.

Existing Buildings

All existing public buildings, public accommodations, commercial buildings, and publicly funded housing shall be accessible to persons with disabilities as required by CBC Chapter 11B.  

Additions to existing buildings:

Each addition to an existing building or facility shall comply with the requirements for new construction and shall comply with CBC section 11B-202.4. 

Alterations to existing buildings

Where existing elements or spaces are altered, each alerted element or space shall comply with the applicable requirements of CBC 11B, Division 2 (Sections 11B-201 through 11B-250), including section 11B-202.4. When alterations or additions are made to existing buildings or facilities, an accessible path of travel to the specific area of alteration or addition shall be provided. The primary path of travel shall include: 

  1. A primary entrance to the building or facility, 
  2. Toilet and bathing facilities serving the area, 
  3. Drinking fountains serving the area, 
  4. Public telephones serving the area, and  
  5. Signs 

Unreasonable hardship for alterations to existing buildings - CBC Section 11B-202.4 exception 8

CBC Section 11B-202.4 exception 8 establishes the requirements for when the cost of compliance creates an unreasonable hardship which is defined as;

  • When the adjusted construction cost (all costs directly related to a project's construction, such as labor, material, equipment, services, utilities, contractor profit, and overhead) as, defined in the 2025 CBC, is less than or equal to $209,208.00; or
  • When the cost of full compliance exceeds $209,208.00 the cost of compliance is determined to be an unreasonable hardship.

Requirements for when an unreasonable hardship is created:

  • When the adjusted construction cost as, defined in the 2025 CBC, is less than or equal to $209,208.00 then the cost of compliance with CBC Section 11B-202.4 shall be limited to 20 percent of the adjusted construction cost. 
  • When the cost of full compliance exceeds $209,208.00 the cost of compliance is determined to be an unreasonable hardship. Compliance shall be provided by equivalent facilitation or to the greatest extent possible without creating an unreasonable hardship; but in no case shall the cost of compliance be less than 20 percent of the adjusted construction cost. 

In all cases, when an unreasonable hardship is created, access shall be provided to the extent that it can be without incurring a disproportionate cost California Building Code 11B-202.4. In choosing which accessible elements to provide, priority should be given to those elements that will provide the greatest access in the following order: 

  1. An accessible entrance 
  2. An accessible route to the altered area 
  3. At least one accessible restroom for each sex 
  4. Accessible drinking fountain
  5. Accessible telephone When possible, additional accessible elements such as parking, storage, and alarms 

A Disabled Access Unreasonable Hardship Application Form(PDF, 170KB)  must be completed and submitted with all other construction documents at the time a project is being submitted for a Building permit.

Important Cost Considerations: 

  • For the purposes of this exception, the adjusted cost of alterations, structural repair or additions shall not include the cost of alteration to path of travel elements required to comply with Section 11B-202.4. 
  • If an area has been altered without providing an accessible path of travel to that area, and subsequent alteration of that area or a different area on the same path of travel are undertaken within three years of the original alteration, the total cost of alterations to the areas on that path of travel during the preceding three-year time period shall be considered in determining whether the cost of making that path of travel is disproportionate. 

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