Guide
San Jose Building Permits Guide: Requirements, Fees & Timeline
San Jose Building Permits
San Jose Building Permits: Your Essential Guide from 9Builders
At 9Builders, we understand that navigating San Jose’s building permit process can feel overwhelming. Whether you’re planning a home addition, ADU, or interior remodel, securing the right permits is crucial to ensure your project complies with local codes and proceeds without costly delays.
01
What Is a Building Permit?
Building permits provide legal authorization to undertake major construction projects on your property, ensuring that your plans comply with safety standards and local building codes. They protect you, your contractors, and your neighbors by verifying that structural, electrical, plumbing, and mechanical work is performed safely and correctly. Proceeding without the proper permits can lead to hefty fines, work stoppages, or even the requirement to undo completed work
In San Jose, you’ll need a building permit for any project that involves:
Erecting, installing, extending, repairing, or altering a building or structure
Installing or modifying electrical, plumbing, or mechanical systems
Minor cosmetic or non-structural jobs—such as painting your home or installing a fence under 7 feet tall—do not require a permit
02
How Much Do Permits Cost?
Permit fees in San Jose are calculated based on your project’s scope and total construction value. Expect to pay roughly 6 %–9 % of your overall building cost. Additional charges for plan reviews, impact fees, insurance, and inspections may apply. You can submit payments online, by wire, or by check. If you need faster turnaround, an expedited review option is available for an extra fee
03
Typical Timeline
From application to final approval, San Jose’s permit process can span 10 to 40 weeks, depending on plan complexity, required revisions, and department workload. Under ideal conditions, the initial plan review may take as little as two weeks. To avoid delays, ensure your submission is complete and accurate, and work with licensed professionals who are familiar with local requirements
04
6 Steps to Obtain Your Permit
Complete the Application
Download and fill out the San Jose building permit form online—or submit in person at a Permit Center.
Prepare Your Site Plan
Detail your project’s scope, timeline, and site layout. 9Builders can handle this for you.
Submit for Plan Review
Schedule a review appointment. Minor revisions may be required before approval.
Receive Approval
Once approved, your permit is issued and you can begin construction.
Schedule Inspections
Coordinate interim inspections with the City to verify compliance during construction.
Final Inspection & Sign-Off
After completion, pass the final inspection to close out your permit
05
Why Partner with 9Builders?
Avoid fines, safety hazards, and resale complications by working with our experienced team. 9Builders handles permit preparation, submission, and coordination with San Jose’s permit office, delivering a hassle-free experience from design through final inspection.
06
Final Thoughts
Ready to get started? Contact 9Builders today for a free estimate and let us guide you through every step of the San Jose building permit process.
Frequently Asked Questions: Your Essential 9Builders Guide to Navigating San Jose Building Permits
Building Permits
What projects require a building permit in San Jose?
Any new construction, additions (including ADUs), major remodels, and significant electrical, plumbing, or mechanical work require permits. Minor cosmetic changes—like painting, installing cabinets, or replacing fixtures—typically do not.
How long does it take to get a permit approved?
Standard plan review in San Jose can take 2–6 weeks for simple projects and up to 20+ weeks for complex or multi-discipline projects. Working with 9Builders can help streamline your submittal and reduce review cycles.
What documents do I need for my application?
You’ll need:
Completed San Jose permit application form
Site plan showing property lines and proposed work
Detailed floor plans, elevations, and structural calculations
Energy compliance (Title 24) forms for conditioned space
Any specialized reports (e.g., geotechnical, arborist)
How much will my permit cost?
Fees are based on your project’s assessed valuation and can range from about 6 % to 9 % of your total construction cost. Additional fees may apply for plan review, impact mitigation, and inspection. 9Builders provides a permit-fee estimate upfront.
Can I expedite my permit review?
Yes. San Jose offers an “Expedited Review” option for an extra fee, reducing your review time by roughly 50 %. 9Builders can handle that request on your behalf to accelerate your timeline.
What inspections are required during construction?
Typical inspections include: footing/foundation, framing, rough-in (electrical/plumbing/mechanical), insulation/energy, and final walkthrough. 9Builders coordinates all inspections and ensures you pass each stage.
What happens if my plans are rejected?
The city will issue a correction letter detailing required revisions. You’ll need to address each comment and resubmit. Our experienced permit team at 9Builders minimizes correction rounds by delivering code-compliant drawings from the start.
Do I need an architect or engineer’s stamp?
Structural changes (e.g., adding beams, enlarging openings) usually require a licensed civil or structural engineer. Architectural plans often need a registered architect for compliance. 9Builders can connect you with trusted design professionals.
How do I close out my permit?
After passing your final inspection, the city issues a “Certificate of Final Completion.” Keep this document for your records—it’s critical for resale, refinancing, and insurance.
How can 9Builders help me?
We manage everything: design coordination, permit application, city liaison, inspection scheduling, and final sign-off. Our turnkey approach saves you time, reduces stress, and helps you avoid costly delays.
Stay Connected with Us
Looking for Assistance with Your Building Permit in San Jose?
408-647-6476
Need Expert Help Securing Your San Jose Building Permit?
