Rohnert Park, CA Building Safety: Green Building Code (2026)
Key Facts
- Adopted code
- 2025 CALGreen, Title 24 Part 11
- Residential appendix
- A4, Voluntary Tier I measures adopted
- Nonresidential appendix
- A5, Voluntary Tier I measures adopted
- Excluded
- Energy efficiency divisions A4.2, A5.2
- Adopting ordinance
- Ord. No. 989, 10-28-2025
Summary
Rohnert Park adopts the 2025 California Green Building Standards Code, CALGreen, Title 24 Part 11, under Section 15.26.010, including the Tier I voluntary residential and nonresidential measures in Appendix Chapters A4 and A5, except their energy efficiency divisions, which the city's separately adopted Energy Code already covers.
The 2025 Edition of the California Building Standards Code, known as the California Code of Regulations, Title 24, Part 11, published by the California Building Standards Commission, including Appendix Chapter A4, Residential Voluntary Measures at Tier I level for New Residential Construction except Division A4.2 Energy Efficiency and Appendix Chapter A5, Nonresidential Voluntary Measures at Tier I level for New Non-Residential Construction except Division A5.2 Energy Efficiency, one copy of which has been filed for use and examination by the public in the office of the building official, is adopted by reference.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 51 Update 2).
Full Breakdown
010 adopts the 2025 California Green Building Standards Code, known as CALGreen, Title 24 Part 11 of the California Code of Regulations, by reference, with a copy on file for public inspection in the building official's office. The adoption goes beyond the code's mandatory measures: the city specifically incorporates Appendix Chapter A4, the Residential Voluntary Measures at Tier I level for new residential construction, and Appendix Chapter A5, the Nonresidential Voluntary Measures at Tier I level for new non-residential construction, making those elevated measures locally enforceable rather than optional. 22. 20), all readopted by Ordinance No. 989 on October 28, 2025.
Violations & Fines
Constructing a project that fails to meet the adopted CALGreen Tier I measures, or performing green building work without a required permit, is a misdemeanor under Section 15.04.060, with a fine up to $1,000 and up to six months in jail unless the citing officer elects to charge it as an infraction. Each day the noncompliance continues counts as a separate offense.
Frequently Asked Questions
Are CALGreen's voluntary Tier I measures mandatory in Rohnert Park?
What green building code does Rohnert Park use?
Why doesn't CALGreen's energy efficiency section apply here?
Sources & Official References
Other rules in Rohnert Park
California rules heatmap·Compare Rohnert Park to another location·View the California building safety overview
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