Soft-Story Retrofit: Carlsbad vs San Diego
How do soft-story retrofit rules compare between Carlsbad, CA and San Diego, CA?
Carlsbad, CA
San Diego County
No data available yet for Carlsbad.
San Diego, CA
San Diego County
San Diego does not currently have a mandatory citywide soft-story retrofit ordinance like Los Angeles. However, the city has adopted the California Existing Building Code Appendix A (Seismic Retrofit Guidelines) and may require retrofit upon substantial remodel or change of occupancy. The Rose Canyon Fault presents significant seismic risk to multi-story wood-frame buildings.
View full San Diego rules →Key Facts Comparison
| Fact | Carlsbad | San Diego |
|---|---|---|
| Mandatory Ordinance | - | No citywide mandate (as of 2025) |
| Code Reference | - | CA Existing Building Code Appendix A |
| Seismic Risk | - | Rose Canyon Fault (M6.9 capable) |
| Trigger | - | Substantial remodel or occupancy change |
Highlighted rows indicate differences between cities.
Carlsbad FAQ
No FAQs available.
San Diego FAQ
Does San Diego require soft-story retrofits?
Not as a mandatory citywide program like Los Angeles. However, retrofit may be required when obtaining permits for substantial remodels (exceeding 50% of building value) or changes of occupancy.
Is San Diego at risk for earthquakes affecting soft-story buildings?
Yes. The Rose Canyon Fault runs through the city and is capable of producing a magnitude 6.9 earthquake. Multi-story wood-frame buildings with tuck-under parking are particularly vulnerable.
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