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Chapter 1 — SCOPE AND APPLICATION

Section 1.8.2

California Residential Code (Title 24, Part 2.5) · 2022 edition · updated 2026-09-12 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

AUTHORITY AND ABBREVIATIONS 1.8.2.1 General. The Department of Housing and Community Development is authorized by law to promulgate and adopt building standards and regulations for several types of build- ing applications. The applications under the authority of the Department of Housing and Community Development are listed in Sections 1.8.2.1.1 through 1.8.2.1.3.

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

5. Where any portion of a building’s exterior is pre- served, but the interior of the building is removed, including all structural portions of floors and ceil- ings, the building is considered a new building for determining the application of California Building Code, Chapter 11A.

“HCD 1-AC” building standards generally do not apply to public use areas or public accommodations such as hotels and motels and public housing. Public use areas, public accommodations and public housing, as defined in Chapter 2 of the California Building Code, are subject to the Division of the State Architect (DSA-AC) in Chapter 11B and are referenced in Cali- fornia Building Code Section 1.9.1.

Enforcing agency— Local building department or the Department of Housing and Community Development.

Authority cited— Health and Safety Code Sections 17040, 17920.9, 17921, 17921.5, 17921.6, 17921.10, 17922, 17922.6, 17922.12, 17922.14, 17926, 17927, 17928, 17958.12, 18938.3, 18944.11 and 19990; and Government Code Sections 12955.1 and 12955.11.

Reference— Health and Safety Code Sections 17000 through 17062.5, 17910 through 17995.5, 18200 through 18700, 18860 through 18874, 18938.6, 18941, 19890, 19891, 19892 and 19960 through 19997; Civil Code Sections 1101.4, 1101.5, 1954.201 and 1954.202; Government Code Sections 12955.1 and 12955.1.1; and California Code of Regulations, Title 20, Sections 1605.1, 1605.3 and 1607.

1.8.2.1.3 Permanent buildings in mobilehome parks and special occupancy parks.

Application— Permanent buildings, and permanent accessory buildings or structures, constructed within mobilehome parks and special occupancy parks that are under the control and ownership of the park opera- tor. Sections of this code which pertain to applications listed in this section are identified using the abbrevia- tion “HCD 2.”

Enforcing agency— The Department of Housing and Community Development, local building department or other local agency that has assumed responsibility for the enforcement of Health and Safety Code, Division 13, Part 2.1, commencing with Section 18200 for mobilehome parks and Health and Safety Code, Divi- sion 13, Part 2.3, commencing with Section 18860 for special occupancy parks. Authority cited— Health and Safety Code Sections 17040, 17920.9, 17921, 17921.5, 17921.6, 17921.10, 17922, 17922.6, 17922.12, 17922.14, 17926, 17927, 17928, 17958.12, 18552, 18554, 18620, 18630, 18640, 18670, 18690, 18691, 18865, 18871.3, 18871.4, 18873, 18873.1 through 18873.5, 18938.3, 18944.11 and 19990; and Government Code Section 12955.1.

Reference— Health and Safety Code Sections 17000 through 17062.5, 17910 through 17995.5, 18200 through 18700, 18860 through 18874, 18941, 19890, 19891, 19892 and 19960 through 19997; Civil Code

DIVISION I CALIFORNIA ADMINISTRATION

1.8.2.1.1 Housing construction.

Application— Hotels, motels, lodging houses, apartments, dwellings, dormitories, condominiums, shelters for home- less persons, congregate residences, employee housing, factory-built housing and other types of dwellings contain- ing sleeping accommodations with or without common toi- let or cooking facilities including accessory buildings, facilities and uses thereto. Sections of this code which per- tain to applications listed in this section are identified using the abbreviation “HCD 1.”

Enforcing agency— Local building department or the Department of Housing and Community Development.

Authority cited— Health and Safety Code Sections 17040, 17920.9, 17921, 17921.5, 17921.6, 17921.10, 17922, 17922.6, 17922.12, 17922.14, 17926, 17927, 17928, 17958.12, 18938.3, 18944.11 and 19990; and Government Code Section 12955.1.

Reference— Business and Professions Code, Division 5; Health and Safety Code Sections 17000 through 17062.5, 17910 through 17995.5, 18200 through 18700, 18860 through 18874, 18938.6, 18941, 19890, 19891, 19892 and 19960 through 19997; Civil Code Sections 832, 1101.4, 1101.5, 1954.201, 1954.202 and 5551; Government Code Sections 8698.4, 12955.1 and 12955.1.1; and California Code of Regulations, Title 20, Sections 1605.1, 1605.3 and 1607.

1.8.2.1.2 Housing accessibility.

Application— Covered multifamily dwellings as defined in Chapter 2 of the California Building Code including, but not limited to, lodging houses, dormitories, timeshares, condominiums, shelters for homeless persons, congregate residences, apartments, dwellings, employee housing, fac- tory-built housing and other types of dwellings containing sleeping accommodations with or without common toilet or cooking facilities.

ellings as defined in_ Chapter 2 of the California Building Code including, but not limited to, lodging houses, dormitories, timeshares, condominiums, shelters for homeless persons, congregate residences, apartments, dwellings, employee housing, fac- tory-built housing and other types of dwellings containing sleeping accommodations with or without common toilet or cooking facilities.

Sections of this code identified by the abbreviation “HCD 1-AC” require specific accommodations for per- sons with disabilities as defined in Chapter 2 of the Cali- fornia Building Code. The application of such provisions shall be in conjunction with other requirements of the Building Standards Code and apply only to newly con- structed covered multifamily dwellings as defined in Chapter 2 of the California Building Code. “HCD 1-AC” applications include, but are not limited to, the following:

1. All newly constructed covered multifamily dwellings as defined in Chapter 2 of the California Building Code.

2. New common use areas as defined in Chapter 2 of the California Building Code serving existing cov- ered multifamily dwellings.

3. Additions to existing buildings, where the addition alone meets the definition of covered multifamily dwellings as defined in Chapter 2 of the California Building Code.

4. New common use areas serving new covered multi- family dwellings.

1-6 2022 CALIFORNIA RESIDENTIAL CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

Sections 1101.4, 1101.5 and 1954.201; Government Code Sections 12955.1 and 12955.1.1; and California Code of Regulations, Title 20, Sections 1605.1, 1605.3 and 1607.

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▸Contents — California Residential Code (Title 24, Part 2.5)
California Residential Code (Title 24, Part 2.5)
  1. Chapter 2 — DEFINITIONS AND ABBREVIATIONS
  2. Appendix AF — RADON CONTROL
  3. Appendix AI — PRIVATE SEWAGE
  4. Appendix AJ — EXISTING
  5. Appendix AK — SOUND
  6. Appendix AO — AUTOMATIC
  7. Appendix AR — LIGHT STRAW-CLAY
  8. Appendix AS — STRAWBALE
  9. Appendix AU — COB CONSTRUCTION
  10. Appendix AV — BOARD
  11. Appendix AW — 3D-PRINTED BUILDING
  12. ▸Chapter 1 — SCOPE AND APPLICATION
    Overview
    1. Section 1.2
    2. Section 1.3
    3. Section 1.4
    4. Section 1.5
    5. Section 1.6
    6. Section 1.7
    7. Section 1.8
    8. Section 1.8.2
    9. Section 1.8.3
    10. Section 1.8.4
    11. Section 1.8.5
    12. Section 1.8.6
    13. Section 1.8.7
    14. Section 1.8.8
    15. Section 1.8.9
    16. Section 1.8.10
    17. Section 1.9
    18. Section 1.10
    19. Section 1.11
    20. Section 1.12
    21. Section 1.13
    22. Section 1.14
    23. Section R101
    24. Section R102
    25. Section R103
    26. Section R104
    27. Section R105
    28. Section R106
    29. Section R107
    30. Section R108
    31. Section R109
    32. Section R110
    33. Section R111
    34. Section R112
    35. Section R113
    36. Section R114
    37. Section R201
    38. Section R202
  13. Chapter 3 — BUILDING PLANNING
  14. Chapter 4 — FOUNDATIONS
  15. Chapter 5 — FLOORS
  16. Chapter 6 — WALL CONSTRUCTION
  17. Chapter 7 — WALL COVERING
  18. Chapter 8 — ROOF-CEILING CONSTRUCTION
  19. Chapter 9 — ROOF ASSEMBLIES
  20. Chapter 10 — CHIMNEYS AND FIREPLACES
  21. Chapter 44 — REFERENCED STANDARDS
  22. Appendix AH — PATIO COVERS
  23. Appendix AL — PERMIT FEES
  24. Appendix AQ — TINY HOUSES
  25. Appendix AT — SOLAR-READY PROVISIONS—DETACHED ONE- AND
  26. Appendix AX — SWIMMING POOL SAFETY ACT
  27. Appendix AY — AREAS PROTECTED BY THE FACILITIES
  28. Appendix AZ — EMERGENCY HOUSING

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