The Seismic Safety Construction Exclusion Claim Form (Form BOE-64) is the claim the San Diego County Assessor uses to exclude seismic retrofitting work on an existing structure from assessment under Revenue and Taxation Code section 74.5. It is one of the San Diego County property tax forms published by the Assessor, and it must be filed before construction is complete or within 30 days after. On this page you can fill out the form online on FillingPDF and download or print the completed PDF; the official PDF is published by the Assessor on the county website.
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What is BOE-64 (P1)?
The Seismic Safety Construction Exclusion Claim Form (Form BOE-64) is the claim a property owner files with the San Diego County Assessor to exclude the seismic retrofitting portion of construction on an existing structure from assessment.
The form is printed as Claim for Seismic Safety Construction Exclusion from Assessment and carries the revision mark REV. 12 (07-25). It rests on Section 74.5 of the Revenue and Taxation Code, which excludes from assessment the part of an existing structure that consists of the construction and reconstruction of seismic components.
The form explains two related steps. The property owner, primary contractor, civil or structural engineer, or architect certifies to the building department which portions of the project are seismic retrofitting components, as defined by section 74.5(b)(2). When the project is complete, the building department reports the costs of those portions to the Assessor.
"Seismic retrofitting components" means seismic retrofitting improvements and improvements using earthquake hazard mitigation technologies. The form states that alterations such as new plumbing, electrical or added finishing materials, made in addition to seismic-related work, are not seismic retrofitting improvements.
The exclusion expires upon a change in ownership of the property. The form also states that the document is subject to public inspection.
Who needs to file BOE-64 (P1)?
Owners of existing buildings or structures who are doing, or have done, seismic retrofitting work and want that work excluded from assessment use this claim under Revenue and Taxation Code section 74.5. The form says the property owner is the one who must file the documents supporting the exclusion with the Assessor.
Others the form names:
- The property owner, primary contractor, civil or structural engineer, or architect, who certifies to the building department the portions of the project that are seismic retrofitting components. The form asks you to answer YES or NO on whether that certification has been made.
- The person making the claim, who signs the certification at the bottom of the form.
The form limits what qualifies. The work must be retrofitting or reconstruction of an existing building or structure, or an improvement identified by a local government as hazardous to life in an earthquake. New plumbing, electrical work or added finishing materials made in addition to seismic work are not seismic retrofitting improvements. The exclusion ends when ownership of the property changes.
When to file BOE-64 (P1)
File the claim with the Assessor before construction is completed or within 30 days after completion. The form asks for the date, or anticipated date, of completion, so you can file it before the work is finished.
The property owner must then file all documents needed to support the exclusion with the Assessor no later than six months after the project is completed. Filing the claim form does not replace those documents.
The exclusion expires upon change in ownership of the property. The form prints no separate renewal cycle and no processing time.
Documents you need
- All documents necessary to support the exclusion, filed with the Assessor by the property owner no later than six months after completion of the project. The form does not list the specific documents.
How to fill out BOE-64 (P1)
Check that the exclusion fits your work
The claim covers seismic retrofitting components of an existing building or structure under Revenue and Taxation Code section 74.5. Read the definitions printed on the form before you start.
Correct the claimant name and address
In the CLAIMANT NAME AND MAILING ADDRESS block, make any necessary corrections to the printed name and mailing address.
Print the claimant name and parcel number
Enter the CLAIMANT'S NAME (PLEASE PRINT) and the ASSESSOR'S PARCEL NUMBER of the property.
Enter the property location
Fill in the STREET ADDRESS only if it differs from the mailing address, then the CITY and ZIP CODE.
Enter the completion date
In DATE (OR ANTICIPATED DATE) OF COMPLETION, give the actual or expected completion date of the construction. The claim is due before that date or within 30 days after it.
Add your contact details
Enter your DAYTIME TELEPHONE NUMBER, including the area code in the parentheses, and your E-MAIL ADDRESS.
Answer the certification question
Mark YES or NO on whether the property owner, primary contractor, civil or structural engineer, or architect has certified to the building department the portions of the project that are seismic retrofitting components.
Sign and date the certification
The person making the claim signs and dates under the CERTIFICATION. It includes an added certification that applies if the form is submitted with an electronic signature.
Leave the Assessor's block blank
Do not write in FOR ASSESSOR'S USE ONLY; the Assessor completes the date received, approved or denied, and any reason for denial.
Review and download the completed PDF
Check each entry and the signature, then download or print the completed PDF from FillingPDF. File it with the Assessor as described under How to submit, and send supporting documents within six months of completion.
How to submit BOE-64 (P1)
The form says the claim is filed with the Assessor and prints the Assessor's office details in its header; it names no other channel.
- Assessor's office: County of San Diego, Assessor, 1600 Pacific Hwy., Suite 103, San Diego, CA 92101.
- Telephone: (619) 531-5481, the number printed on the form, for questions about how to deliver the claim.
File the signed claim before construction is complete or within 30 days after. Send the documents that support the exclusion to the Assessor within six months after completion. The building department separately reports the costs of the seismic portions to the Assessor once the project is finished. The form is subject to public inspection. FillingPDF lets you fill out and download the PDF; submission follows the Assessor's channels above.
Common mistakes to avoid
- Filing the claim more than 30 days after the project is completed; the form says it must be filed before completion or within 30 days of it.
- Filing the claim but not sending the supporting documents to the Assessor within six months after completion.
- Answering YES to the certification question before the owner, primary contractor, engineer or architect has certified the seismic portions to the building department.
- Claiming new plumbing, electrical work or added finishing materials as seismic work; the form excludes them from seismic retrofitting improvements.
- Leaving the printed claimant name and mailing address uncorrected when they are wrong.
- Writing in the FOR ASSESSOR'S USE ONLY box (date received, approved, denied, reason for denial).
- Sending the claim unsigned or without the date beside the signature.
- Assuming the exclusion carries over to a new owner; it expires upon change in ownership.
Frequently asked questions
What is the seismic safety construction exclusion claim form?
It is Form BOE-64, the claim filed with the San Diego County Assessor to exclude seismic retrofitting components of an existing structure from assessment. It rests on Section 74.5 of the Revenue and Taxation Code.
What is the deadline to file Form BOE-64?
File it with the Assessor before construction is completed or within 30 days after completion. The property owner must then file all documents supporting the exclusion with the Assessor no later than six months after completion of the project.
What counts as seismic retrofitting for this exclusion?
The form defines it as retrofitting or reconstruction of an existing structure to abate falling hazards or to resist earthquake forces, plus improvements using earthquake hazard mitigation technologies. New plumbing, electrical or added finishing materials are not included.
Does the seismic safety exclusion transfer to a new owner?
No. The form states that the exclusion expires upon change in ownership of the property. The exclusion is therefore tied to the owner who filed the claim.
Who certifies the seismic work to the building department?
The property owner, primary contractor, civil or structural engineer, or architect certifies the seismic retrofitting portions to the building department. After completion, the building department reports the costs of those portions to the Assessor.
Where do I file Form BOE-64 in San Diego County?
File it with the Assessor. The form prints the address County of San Diego, Assessor, 1600 Pacific Hwy., Suite 103, San Diego, CA 92101, and the telephone (619) 531-5481. It names no other filing channel.
Can I fill out Form BOE-64 online?
You can fill out the PDF online on FillingPDF and download or print it. FillingPDF is independent of the San Diego County Assessor and does not file the claim; you submit it through the Assessor's channels.
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