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Chapter 5 — PRESCRIPTIVE COMPLIANCE METHOD

Section 507A

California Existing Building Code (Title 24, Part 10) · 2022 edition · updated 2026-09-10 · California

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

HISTORIC BUILDINGS

507 A .1 Historic buildings. The provisions of this code that require improvements relative to a building’s existing condition or, in the case of repairs, that require improvements relative to a building’s predamage condition, shall not be mandatory for historic buildings unless specifically required by this section.

507 A .2 Life safety hazards. The provisions of this code shall apply to historic buildings judged by the code official to constitute a distinct life safety hazard.

[BS] 507 A .3 Flood hazard areas. Within flood hazard areas established in accordance with Section 1612.3 of the Califor- nia Building Code, or Section R322 of the California Residential Code, as applicable, where the work proposed constitutes substantial improvement, the building shall be brought into compliance with Section 1612 of the California Building Code, or Section R322 of the California Residential Code, as applicable.

Exception: Historic buildings meeting any of the following criteria need not be brought into compliance:

  1. Listed or preliminarily determined to be eligible for listing in the National Register of Historic Places.
  2. Determined by the Secretary of the US Department of Interior as contributing to the historical significance of a registered historic district or a district preliminarily determined to qualify as an historic district.
  3. Designated as historic under a state or local historic preservation program that is approved by the Department of Interior.

[BS] 507 A .4 Structural. Historic buildings shall comply with the applicable structural provisions in this chapter.

Exceptions:

  1. The code official shall be authorized to accept existing floors and existing live loads and to approve operational controls that limit the live load on any floor.
  2. Repair of substantial structural damage is not required to comply with Sections 405 A .2.3, and 405 A .2.4. Substantial structural damage shall be repaired in accordance with Section 405 A .2.1.

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.

5A-8 2022 CALIFORNIA EXISTING BUILDING 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.

CALIFORNIA EXISTING BUILDING CODE – MATRIX ADOPTION TABLE

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▸Contents — California Existing Building Code (Title 24, Part 10)
California Existing Building Code (Title 24, Part 10)
  1. Chapter 2 — DEFINITIONS
  2. Appendix A — GUIDELINES FOR
  3. Appendix B — SUPPLEMENTARY
  4. Appendix C — GUIDELINES FOR THE WIND
  5. Appendix D — BOARD OF
  6. Chapter 1 — SCOPE AND ADMINISTRATION
  7. Chapter 3 — PROVISIONS FOR ALL COMPLIANCE METHODS
  8. Chapter 4 — REPAIRS
  9. ▸Chapter 5 — PRESCRIPTIVE COMPLIANCE METHOD
    Overview
    1. Section 501
    2. Section 503
    3. Section 502
    4. Section 504
    5. Section 505
    6. Section 506
    7. Section 507
    8. Section 501A
    9. Section 502A
    10. Section 503A
    11. Section 504A
    12. Section 505A
    13. Section 506A
    14. Section 507A
  10. Chapter 6 — CLASSIFICATION OF WORK
  11. Chapter 7 — ALTERATIONS—LEVEL 1
  12. Chapter 8 — ALTERATIONS—LEVEL 2
  13. Chapter 9 — ALTERATIONS—LEVEL 3
  14. Chapter 10 — CHANGE OF OCCUPANCY
  15. Chapter 11 — ADDITIONS
  16. Chapter 12 — HISTORIC BUILDINGS
  17. Chapter 13 — PERFORMANCE COMPLIANCE METHODS
  18. Chapter 14 — RELOCATED OR MOVED BUILDINGS
  19. Chapter 15 — CONSTRUCTION SAFEGUARDS
  20. Chapter 16 — REFERENCED STANDARDS

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