Cupertino Building Permits Guide for Homeowners

Last updated November 13, 2026. Reviewed by the Cash Home Buyers CA team.

Cupertino accepts permit applications by email and says current plan review averages 20 to 30 business days for a first review. This guide explains how the Cupertino permit process works for homeowners: what the Building Division handles, how to apply, how long review takes, how inspections are scheduled, and what permit history means if you plan to sell.

Cupertino permits at a glance

Department	Building Division, Community Development Department, 10300 Torre Avenue, Cupertino, CA 95014
Phone	408-777-3228
Email	permitcenter@cupertino.gov
In-person counter	Monday to Thursday (Monday and Wednesday 7:30 a.m. to noon and 1 to 4 p.m.; Tuesday and Thursday 9 a.m. to noon and 1 to 4 p.m.)
Friday	Remote service, 7:30 a.m. to noon and 1 to 3 p.m.
How to apply	Download the form, then email the application, drawings and documents to the permit center
Average plan review	20 to 30 business days for the first review, 10 to 20 for each later review, per the city
Inspections	Scheduled online through the city’s permit portal

When you need a building permit in Cupertino

The city says permits are issued to make sure construction plans meet local, state and federal standards and that the work is inspected. Its permit page groups applications by project type: demolition, new construction, additions and remodels, detached and attached ADUs, revisions and deferred submittals, photovoltaic (solar) systems, commercial tenant improvements and signs. Inspections are required for every issued permit.

The city also keeps a Building Division FAQ, and it directs questions about the height and setbacks that apply to fences and detached structures to the Planning Department at 408-777-3208 or planning@cupertino.gov. If you are unsure whether a job needs a permit, ask before you start, because unpermitted work can surface later in a sale.

Step by step: how a Cupertino permit works

1. Prepare your documents

Download the application that matches your project, then follow the city’s electronic submittal process handout. Cupertino will not start an electronic plan review until the submittal meets its format requirements, so read the handout before you email anything.

2. Submit by email or in person

The city says you can apply in person or virtually. For a virtual application, email the application, drawings and supporting documents to permitcenter@cupertino.gov. If your project is ready to be issued, the city says it will issue the permit shortly after payment. If it needs plan review, staff send you a link to start the review process.

3. Pay plan review fees

Staff send a link to pay permit fees, and the city states that plan review fees must be paid before plan review begins. Fees vary by project, so use the city’s fee schedule for your scope of work.

4. Plan review and corrections

Cupertino reports that because of high volume, current plan review averages 20 to 30 business days for the first review and 10 to 20 business days for each later review.

Once an application is deemed complete, the city lists typical timelines by project type: additions and remodels, 15 days for the first review and 10 for a resubmittal; detached or attached ADUs, 10 days each; demolition, 10 to 15 days first and 10 for a resubmittal; single-family new construction, 15 to 20 days first and 10 for a resubmittal. Over-the-counter permits for certain work are same day.

5. Build, inspect and finish

Once the permit is issued, schedule inspections as work reaches each stage. After final approval, the city offers a Certificate of Occupancy or Certificate of Completion application, plus a temporary certificate of occupancy procedure where applicable.

How Cupertino inspections work

You schedule building inspections online through the city’s permit portal. The request asks for the permit number, address, type of inspection, desired date, and a contact name, phone and email. On the morning of your inspection, the city sends a confirmation email before 7:30 a.m. with a two-hour window, and the full daily schedule is visible online by 7 a.m.

Building inspection hours are Monday and Wednesday 7:30 to 11:30 a.m. and 12:30 to 4 p.m., Tuesday and Thursday 9 to 11:30 a.m. and 12:30 to 4 p.m., and Friday 7:30 to 11:30 a.m. and 12:30 to 3 p.m. Questions go to buildinginspectors@cupertino.gov or 408-777-3228. Fire inspections are handled separately by the Santa Clara County Fire Department at 408-378-4010.

ADUs, solar and other special projects

Cupertino lists ADUs and solar as their own permit categories, and it gives ADUs among the fastest review targets (10 days for each review round once complete). For size, setback and fee rules, see our Cupertino zoning and ADU guide. Work that triggers a code enforcement case is covered in our Cupertino code enforcement guide.

Permits and selling a Cupertino house

Permit history matters at sale time. Buyers, lenders and appraisers often ask whether additions, garage conversions and remodels were permitted, and California sellers generally disclose known unpermitted work on the transfer disclosure paperwork. Our statewide guide to selling as-is with unpermitted work explains the disclosure rules, and the seller closing costs guide covers what else to budget for.

With review times of a month or more in a high-volume permit office, cleaning up an open or unpermitted project before listing can add weeks.

If you own a Cupertino home with an open permit, an expired permit or work done without one, you generally have three paths: finish and close the permit before listing, disclose the work and accept a lower price on the open market, or sell as-is to a cash buyer who takes the house in its current condition. A short checklist helps you decide:

• Search your address in the city’s permit portal for open, expired or finaled permits.
• List any garage conversion, enclosed patio, added room or detached structure built without a permit.
• Gather final inspection records, certificates and contractor invoices for permitted work.
• Email the permit center to ask what it would take to legalize each item, including plans, fees and inspections.
• Compare the cost and time of that cleanup with a no-repairs cash sale.

How to sell a house in Cupertino

1. Review which work on the property was permitted and which was not.
2. Collect permits, final inspection records and any city notices.
3. Request a no-obligation cash offer for the house as it stands.
4. Choose your closing date.
5. Close with no repairs, permit cleanup or showings required.

Our local pages cover related situations in Cupertino, including selling as-is, selling fast and the cash offer process.

Frequently asked questions

How do I apply for a building permit in Cupertino?

Download the application for your project and email it, with drawings and documents, to permitcenter@cupertino.gov following the city’s electronic submittal process. You can also apply in person.

How long does Cupertino plan review take?

The city reports current averages of 20 to 30 business days for the first review and 10 to 20 business days for each later review, with shorter typical timelines for some project types once an application is complete.

When must plan review fees be paid?

The city states that plan review fees must be paid before plan review begins. Staff email a payment link.

How do I schedule a Cupertino building inspection?

Schedule online through the city’s permit portal. You need the permit number, address, inspection type, desired date and contact details, and you receive a two-hour window by email before 7:30 a.m. that day.

Who handles fire inspections in Cupertino?

The city lists the Santa Clara County Fire Department at 408-378-4010 for fire inspections.

Can I sell my Cupertino house with unpermitted work?

Yes. You can disclose it and sell as-is, including to a cash buyer. Our statewide guide explains the disclosure rules.

More guides

• We Buy Houses in Cupertino
• We Buy Houses in Santa Clara County
• Santa Clara County Property Tax Guide
• Cupertino Code Enforcement Guide
• Cupertino Zoning and ADU Guide
• All California Guides

Sources

• City of Cupertino: Permits
• City of Cupertino: Inspections
• City of Cupertino: Building

This guide is general information from public sources, not legal advice. Confirm current rules, fees and hours with the city.