Seismic Safety

Shelly Scott, Assessor - Recorder - County Clerk

Earthquake Mitigation/Seismic Retrofit New Construction Exclusion

Specified seismic retrofitting and earthquake hazard mitigation features that are added to existing buildings may be excluded from reassessment. An owner must notify the Assessor prior to, or within 30 days of, the completion of the construction project that he or she intends to claim this exclusion. The applicant must also certify (or have certified) to the Assessor in writing those portions of any new construction project that are specifically attributable to seismic retrofit or earthquake mitigation technologies.

Please note that previously installed seismic retrofit or earthquake mitigation technologies are not excluded from reassessment when property changes ownership.

An application for this exclusion must be filed with the Assessor.  The form is available online at the following link to the Application for Exclusion form or you may call our office at (415) 473-7215 and request a form.

If you need additional information or have more questions, please contact the Marin County Assessor at (415) 473-7854 or send an email. The office of the Marin County Assessor is located at Marin Civic Center Room 208, 3501 Civic Center Drive, San Rafael, CA. Office hours are 9:00 a.m. – 4:00 p.m., Monday through Friday.