How do I submit the Encroachment Permit Application?

The form names the Department of Public Works, Road Operations - Permits, at 455 County Center, 2/Fl., Redwood City, CA 94063. It does not specify a submission method, so check the county website for current details.

What attachments does the application request?

The application asks applicants to attach a site plan and details of construction.

When is a USA inquiry ID required?

For planned excavation in a public right-of-way or private easement, the form says an inquiry identification number is required. It states the permit is not valid for excavation unless the applicant has obtained an inquiry ID.

San Mateo County, CA · San Mateo County

No notary required

Encroachment Permit Application

This application requests permission from San Mateo County for work that excavates, constructs, or otherwise encroaches on a county road right-of-way.

At a glance

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

What this form is

Applicants use this form to request permission for excavation, construction, or other activity in the right-of-way of a San Mateo County road. It asks for the activity location and description, proposed dates, applicant contact information, signature, and USA inquiry ID when applicable. The form requests an attached site plan and construction details and includes commitments concerning county requirements, inspection, indemnity, and insurance.

Who needs it

A person or organization planning excavation, construction, or other work in the right-of-way of a San Mateo County road needs this application.

How to submit it

Submit it to the county department named on the form; check the county website for current contact details and submission options.

About notarization

This application is signed and dated without a notary; attach a site plan and construction details, and obtain an inquiry ID before excavation when applicable.

How to submit this form

1
Download the Application
Download the Encroachment Permit Application for San Mateo County.
2
Complete the Application
Fill in the proposed activity location and description, dates, applicant details, and USA inquiry ID when applicable.
3
Gather the Attachment
Attach a site plan and details of construction.
4
Submit to the County
Submit the application to the county department named on the form; check the county website for current submission details.

Frequently asked questions

Do I need a notary for the Encroachment Permit Application?: No. The application is signed and dated without a notary. Attach a site plan and construction details, and obtain an inquiry ID before excavation when applicable.
How do I submit the Encroachment Permit Application?: The form names the Department of Public Works, Road Operations - Permits, at 455 County Center, 2/Fl., Redwood City, CA 94063. It does not specify a submission method, so check the county website for current details.
What attachments does the application request?: The application asks applicants to attach a site plan and details of construction.
When is a USA inquiry ID required?: For planned excavation in a public right-of-way or private easement, the form says an inquiry identification number is required. It states the permit is not valid for excavation unless the applicant has obtained an inquiry ID.

Need something notarized?

This Encroachment Permit Application doesn’t need a notary, but if you have another San Mateo County form that does, a commissioned online notary can help.