Do I need a permit for a backyard shed in Campbell?

Yes, if it's over 200 square feet or over 10 feet tall. Sheds under 200 square feet and under 10 feet don't require permits as long as they're detached, single-story, and set back at least 5 feet from property lines. Even exempt sheds need to meet setback and height limits, so measure first. If you're adding electrical service to any shed, a permit is mandatory regardless of size.

How much does a typical permit cost in Campbell?

Campbell uses a sliding-scale fee based on construction valuation. A simple deck ($5,000–$10,000 valuation) typically costs $150–$300 for the permit. Fence permits are flat-fee around $100–$150. Electrical subpermits run $125–$250. Room additions and solar systems are typically $400–$800. Plan-review fees are rolled into the base permit fee; there are no hidden add-ons for plan checks or inspections. Request a fee estimate when you file—the city publishes a fee schedule online.

Can I do electrical work myself in Campbell?

No. California law (Business & Professions Code § 7026) requires all electrical work in owner-occupied homes to be done by a licensed C-10 (electrical) contractor or by the homeowner if the homeowner holds a valid C-10 license. Homeowners cannot simply pull a permit and do the work themselves. You can hire a licensed electrician, pull the permit in their name, and oversee the work—but the license sits with them. The electrician files the initial permit, requests inspections, and pulls the final sign-off.

How long does plan review take in Campbell?

Routine projects (fences, decks, small electrical work) 1–3 days. Standard projects (solar, small additions, ADUs) 2–4 weeks. Complex projects (large additions, remodels over $100,000, commercial work) 4–8 weeks or more. Resubmittals after a rejection typically add 1–2 weeks. If you submit incomplete plans, add another week. Campbell publishes average turnaround times by project type on its website—check before you file so you can plan your schedule.

What's the most common reason permits get rejected in Campbell?

Missing or incomplete information. Most rejections are administrative: missing title report, no soils report on a footing detail, stamped plans not signed by a licensed professional, or a single-line electrical diagram that doesn't match the load-calculation sheet. The second-most common reason is undersized structural members (headers, beams, joists) for the loads they're carrying. Third is failure to show property lines, setbacks, or easements on the site plan. Use the city's checklist before you submit. It saves a rejection cycle.

Do I need a soils report for my deck in Campbell?

Almost certainly, if your deck is in a footing-critical area. Bay Mud and expansive clay require professional analysis. Granitic foothills soil is usually more stable, but you still need to show either (a) a soils report, or (b) photographic or written evidence that adjacent structures on similar soil have remained stable for 10+ years with no movement. The Building Department makes the call based on location. Submit your site photos and property history with your application, and the reviewer will tell you if they need a report. It costs $500–$1,500 and takes 1–2 weeks. Get ahead of it.

What happens if I pull a permit and then decide not to finish the project?

Permits expire in Campbell after 180 days if no work has begun. If work has started, the permit remains valid for 1 year from issuance (extendable by request for an additional year). If you abandon the project mid-work, you still need a final inspection to confirm the work is safe or removed. Unpulled permits are free to abandon—just don't file. Once filed, contact the Building Department and request permit closure or cancellation. There's no fee to cancel, but you forfeit the permit fee if you paid one.

Can I hire a contractor who isn't licensed in California?

No. Any contractor performing construction work in California must hold a valid Contractors State License Board (CSLB) C-10, C-15, C-20, or other applicable license for the scope of work. Homeowners sometimes hire out-of-state contractors thinking state licensing doesn't apply—it does. Contractors without valid CSLB licenses cannot legally pull permits or sign off on work. The Building Department will catch this at plan review or first inspection. Verify your contractor's license on the CSLB website before you hire them.

Is there a way to get my permit approved faster?

Completeness is the fastest path. Submit all required documents, stamped plans, title report, soils report (if needed), and a filled-out application the first time. Incomplete submissions reset the clock. Campbell also offers over-the-counter permitting for simple projects (small decks, fences, electrical subpermits)—if you're eligible, drop in during business hours with complete plans and you can get approval in a few hours. Call ahead to confirm current over-the-counter eligibility for your project type.

Building Permits in Campbell, CA (2026)

Do I need a permit in Campbell, CA?

Campbell sits in the Santa Clara Valley where the foothills transition to Bay flatland. The city's building code is based on the 2022 California Building Code (Title 24), which means you're subject to both state and local requirements. The distinction matters: California is one of the toughest permit jurisdictions in the country, and Campbell enforces it consistently. Almost any structural work, electrical upgrade, plumbing addition, or deck will need a permit. The good news is the city has moved toward online permit intake, and most routine projects (decks, fences, small additions) move faster than you'd expect. The bad news is rejection rates are high—typical reasons include inadequate soil reports for footings, missing title reports, undersized headers in load-bearing walls, and electrical single-line diagrams that don't match current NEC standards. Campbell's Building Department is thorough and will catch those problems before you pour concrete or run wire. Owner-builders are allowed under California Business & Professions Code Section 7044, but electrical and plumbing work must be done by licensed contractors (or a licensed owner-builder who pulls the trade license). This article walks you through what requires a permit, what doesn't, how to file, what it costs, and what happens if you skip it.

What's specific to Campbell permits

Campbell is one of three Bay Area cities that have fully moved to online permit filing. The city portal is integrated with its case-management system, so you can track plan review, inspection scheduling, and final sign-off in real time. Most routine permits (fences under 6 feet, decks under 200 square feet, small electrical work) can be filed and approved over-the-counter within a few days if your plans are complete. More complex projects (additions, new accessory dwelling units, solar systems) require 2–4 weeks of plan review. The city publishes a checklist for each project type—use it before you submit. Missing items are the #1 reason for rejects.

Soil testing is non-negotiable in Campbell because of the Santa Clara Valley's subsurface complexity. Bay Mud dominates near the low-lying areas, expansive clay in some neighborhoods, and granitic foothills elsewhere. For any deck, foundation, or retaining wall over 4 feet, the Building Department will ask for a soils report prepared by a licensed geotechnical engineer. This is not optional, and it costs $500–$1,500 depending on the scope. Small decks on stable hillside lots sometimes escape the requirement if you can provide evidence of adjacent structures and stable soil history, but don't count on it. Get the engineer involved early.

The city adopts the 2022 California Building Code (CBC) without major local amendments. That means you're following state Title 24 energy standards, state seismic requirements (Campbell is in an active seismic region—the Hayward Fault system is 20 miles away), and state electrical and plumbing codes. The 2022 CBC is more stringent than the 2019 version on three fronts: it requires rigid conduit or cable trays for all accessible electrical runs in garages, mandates AFCI protection on virtually all 120-volt circuits in homes, and sets much tighter energy-compliance paths for windows and insulation. Plan for that when you size materials.

One quirk specific to Campbell: the city requires title reports or property-tax records for all permit applications, even small jobs. This is to verify legal ownership and identify any deed restrictions or easements that might affect your work. You can order a title report from a title company ($200–$400) or submit a copy of your property-tax bill and a notarized statement of ownership. The Building Department will not begin plan review without it. This delays intake by a week or so if you're not prepared. Have it ready before you walk in.

Inspection scheduling is fast if you request it promptly. Campbell uses an online inspection-scheduling portal—once your work is ready, you can book an inspection slot for 1–3 days out. The city aims to schedule all inspections (footing, rough-in, final) within 48 hours of your request. Final inspection typically takes 24 hours. The Building Department keeps a single inspector rotation, so you're likely to see the same inspector twice on a larger project. Get to know them. They're strict but fair, and if you've got questions about code language, they'll explain it on-site.

Most common Campbell permit projects

These are the projects Campbell homeowners file for most often. Each has its own quirks, fee structure, and timeline.

Solar panels

Rooftop and ground-mounted solar systems need permits. California Energy Commission (CEC) Form 50-40-R (now Title 24 forms) must accompany the application. Most systems get over-the-counter approval; expect 5–10 days with a Title 24 compliance letter.

Accessory dwelling units (ADUs)

California Government Code § 66411 allows second units on single-family lots in most cases. Campbell enforces state rules; detached ADUs under 850 square feet often qualify for expedited review. Plan 4–8 weeks for approval and inspections.

Do I need a building permit in Campbell, CA?

Do I need a permit in Campbell, CA?

What's specific to Campbell permits

Most common Campbell permit projects

Solar panels

Accessory dwelling units (ADUs)

Do I need a building permit
in Campbell, CA?