What is the Affidavit for Plan Duplication?

It is the form a customer completes to request copies of approved building plans maintained by the Humboldt County Building Division.

What information does the affidavit request?

It asks for the requester’s name, the building or property location, and the plan number or sheets requested. It also includes plan-use conditions and permission sections.

Do I need a notary for the Affidavit for Plan Duplication?

No. The document is signed without a notary; the requester and licensed professional or building owner sign and date it, and no notarized attachment is identified.

Humboldt County, CA · Humboldt County

No notary required

Affidavit for Plan Duplication

Building plan customers complete this affidavit to request copies of approved plans from the Humboldt County Planning and Building Department.

At a glance

Issued by: City of Humboldt County · Humboldt County, Humboldt County, California
Notarization: Not required: file this form without a notary.
Official source: humboldtgov.org
Blank form: Download the PDF
Catalogued: Oct 5, 2026
Machine-readable: JSON record · about the forms index

What this form is

Use this affidavit when requesting copies of approved building plans held by the Humboldt County Building Division. It asks for the requester’s name, the property location, and the plan numbers or sheets requested, and includes conditions limiting how copied plans may be used. The form also contains sections for a licensed professional or building owner to acknowledge the terms and give permission for release.

Who needs it

Anyone requesting copies of approved plans from the Building Division completes the affidavit; the professional of record and building owner may also need to provide written permission.

How to submit it

Send the completed affidavit to the County of Humboldt Planning and Building Department, Building Division, 3015 H Street, Eureka, CA 95501. The form also lists phone (707) 445-7245.

About notarization

This document is signed without a notary; the requester and the licensed professional or building owner sign and date it, and no notarized attachment is identified.

How to submit this form

1
Download the Affidavit
Download the Affidavit for Plan Duplication from this page.
2
Complete the Request
Enter your name, the building or property location, and the plan numbers or sheets you are requesting.
3
Gather Required Permissions
The form includes sections for a licensed professional or building owner to acknowledge the terms and give permission for release.
4
Send It to the Building Division
Send the completed affidavit to the County of Humboldt Planning and Building Department, Building Division, 3015 H Street, Eureka, CA 95501.

Frequently asked questions

What is the Affidavit for Plan Duplication?: It is the form a customer completes to request copies of approved building plans maintained by the Humboldt County Building Division.
What information does the affidavit request?: It asks for the requester’s name, the building or property location, and the plan number or sheets requested. It also includes plan-use conditions and permission sections.
Do I need a notary for the Affidavit for Plan Duplication?: No. The document is signed without a notary; the requester and licensed professional or building owner sign and date it, and no notarized attachment is identified.
How do I submit the Affidavit for Plan Duplication?: Send the completed affidavit to the County of Humboldt Planning and Building Department, Building Division, at 3015 H Street, Eureka, CA 95501.

Need something notarized?

This Affidavit for Plan Duplication doesn’t need a notary, but if you have another Humboldt County form that does, a commissioned online notary can help.