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Chapter 8-7 — STRUCTURAL REGULATIONS

Section 8-704 — NONHISTORICAL ADDITIONS AND NONHISTORICAL ALTERATIONS

2025 California Historical Building Code (Title 24, Part 8) · 2025 edition · updated 2026-07-29 · California

8-704.1 New nonhistorical additions and nonhistorical alterations which are structurally separated from an existing historical building or structure shall comply with regular code requirements.

8-704.2 New nonhistorical additions which impose vertical or lateral loads on an existing structure shall not be permitted unless the affected part of the supporting structure is evaluated and strengthened, if necessary, to meet regular code requirements.

Note: For use of archaic materials, see Chapter 8-8.

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▸ Contents — 2025 California Historical Building Code (Title 24, Part 8)
2025 California Historical Building Code (Title 24, Part 8)
  1. Chapter 8-1 — ADMINISTRATION
  2. Chapter 8-2 — DEFINITIONS
  3. Chapter 8-3 — USE AND OCCUPANCY
  4. Chapter 8-4 — FIRE PROTECTION
  5. Chapter 8-5 — MEANS OF EGRESS
  6. Chapter 8-6 — ACCESSIBILITY
  7. ▸ Chapter 8-7 — STRUCTURAL REGULATIONS
    Overview
    1. Section 8-701 — PURPOSE, INTENT AND SCOPE
    2. Section 8-702 — GENERAL
    3. Section 8-703 — STRUCTURAL SURVEY
    4. Section 8-704 — NONHISTORICAL ADDITIONS AND NONHISTORICAL ALTE…
    5. Section 8-705 — STRUCTURAL REGULATIONS
    6. Section 8-706 — LATERAL LOAD REGULATIONS
  8. Chapter 8-8 — ARCHAIC MATERIALS AND METHODS OF CONSTRUCTION
  9. Chapter 8-9 — MECHANICAL, PLUMBING AND ELECTRICAL REQUIREMENTS
  10. Chapter 8-10 — QUALIFIED HISTORICAL DISTRICTS, SITES AND OPEN …

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