Chapter 5A — PRESCRIPTIVE COMPLIANCE METHOD

Section 502A — ADDITIONS

2025 California Existing Building Code (Title 24, Part 10) · 2025 edition · ingested 2026-07-07 · California

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502 A .1 General. Additions to any building or structure shall comply with the requirements of the California Building Code for new construction. Alterations to the existing building or structure shall be made to ensure that the existing building or structure together with the addition are not less complying with the provisions of the California Building Code than the existing building or structure was prior to the addition. An existing building together with its additions shall comply with the height and area provisions of Chapter 5 of the California Building Code . Where a new occupiable…