BM103 Building Design — 2025 California Residential Code

California Residential Code (Title 24, Part 2.5) · 2025 edition · updated 2026-10-19 · California

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

Cite as: 2025 California Residential Code (Title 24, Part 2.5) § BM103 · Effective January 1, 2026 · Official source: Building Standards Commission

BM103.1 Design organization.¶

3D-printed buildings, structures and building elements shall be designed by an organization certified in accordance with UL 3401 by an approved agency and approved by the building official in accordance with this section.

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BM103.2 Design approval.¶

The structural design, construction documents and UL 3401 report of findings shall be submitted for review and approval in accordance with Section 104.2.2.

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▸Contents — California Residential Code (Title 24, Part 2.5)

California Residential Code (Title 24, Part 2.5)

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