What Permits Do You Need for a Tenant Improvement?

If you're building out a new office, retail space, or restaurant in the Bay Area, you need a tenant improvement permit. Here's what that means and what to expect.

What a TI permit covers

A tenant improvement permit covers work done to the interior of an existing commercial space, new walls, ceilings, electrical, plumbing, HVAC, and finishes. It does not cover changes to the building's exterior or structural system unless those are part of the scope.

Almost every commercial build-out requires one. The only exception is purely cosmetic work like painting or replacing carpet, and even then, it depends on the jurisdiction.

Running a restaurant or retail buildout? See our specific breakdown of restaurant and retail TI permits in San Francisco.

How long does a commercial TI permit take in the Bay Area

San Francisco: 8–16 weeks for standard TI projects. Complex projects involving change of occupancy, fire suppression, or accessibility upgrades take longer.

San Jose: 6–12 weeks for most commercial TI projects. San Jose has a relatively efficient over-the-counter process for straightforward scopes.

Oakland: 8–14 weeks. Multiple department sign-offs are common, Planning, Building, Fire, each adding time if not coordinated properly.

Not sure where your project stands? Our expediting service can review your scope and map out the fastest path to approval.

The most common TI permit mistake

Starting construction before the permit is issued. In the Bay Area, stop-work orders on commercial spaces are aggressively enforced. The cost of a stop-work order, fines, delays, potential demolition of un-permitted work, far exceeds the cost of doing it right upfront.

PermitBox manages commercial TI permits across the Bay Area. If you have a lease signed and a build-out to deliver, book a consulting call and we'll map out your permit timeline before you break ground.

Book at permit-box.co.

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San Francisco Commercial Permit Expediting in 2026

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How to Track Permits in San Francisco