Union City, CA Building Safety: Green Building Code (2026)
Key Facts
- Base code
- 2025 CalGreen (state-adopted)
- Effective date
- January 1, 2026
- Enforcing agency
- Building Inspection Division
- First infraction fine
- $150
- Appeals body
- City Council-appointed Board of Appeals
Summary
Union City adopts the 2025 California Green Building Standards Code (CalGreen) by reference as its local Green Building Standards Code, applying the state's mandatory green-building requirements to construction, alteration, and repair of buildings citywide.
The 2025 California Green Building Standards Code and State of California Amendments, published by the California Building Standards Commission, and all revisions and amendments heretofore and hereafter adopted by the California Building Standards Commission, are hereby adopted by reference as the Green Building Standards Code of the City of Union City, regulating the erection, installation, alteration, repair, relocation replacement, addition to, use or maintenance of buildings within the City of Union City.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4940544; v16 updated 2026-06-23).
Full Breakdown
Union City Municipal Code § 15.84.010 adopts the 2025 California Green Building Standards Code (CalGreen), with state amendments, as the city's Green Building Standards Code, governing erection, installation, alteration, repair, relocation, and maintenance of buildings citywide, effective January 1, 2026. The city layers on its own administrative provisions: citations for violations are infractions (§ 15.84.040), unresolved violations are a declared public nuisance the city may abate (§ 15.84.050), fees follow the adopted city fee schedule (§ 15.84.070), and appeals go to a City Council-appointed Board of Appeals (§ 15.84.080). The Building Inspection Division administers the code; the underlying green-building standards are set by the state, not the city.
Violations & Fines
Violations are infractions: $150 first offense, $300 second, $600 third (charged as a misdemeanor) under § 15.84.040, with each day of noncompliance a separate offense; unresolved violations are a declared public nuisance the city may abate.
Frequently Asked Questions
Does Union City have its own green building code?
What happens if a project violates the Green Building Standards Code?
Sources & Official References
Other rules in Union City
California rules heatmap·Compare Union City to another location·View the California building safety overview
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Green Building Code in Nearby Cities
How other cities in Alameda County handle green building code.