Sign Your Own Building Permit, Get Free Lawsuit
Signing your own building permit is the most expensive money-saving decision available to a California homeowner, and almost nobody reads the form they hand you to do it.
Here’s the version that ended up in front of the California Supreme Court. A homeowner bought a house, planned a remodel that would add over 750 square feet, and put their own name on the permit instead of a contractor’s. Then they hired an unlicensed contractor to run the work. That contractor brought his own laborer to help demolish the roof, and the laborer was seriously hurt on the job.
The homeowner’s defense was reasonable enough on its face. I’m a homeowner, not a construction company. Workplace safety rules are for job sites, not houses.
The court didn’t buy it. And the reason has almost nothing to do with the roof.
tldr; When you sign your own building permit in California as an owner-builder, you take on the general contractor’s role, and if you then hire anyone unlicensed, state law can treat you as the employer of that person and their workers. That means potential exposure to workplace safety standards, injury liability, and payroll obligations, while your homeowner’s insurance may not cover any of it. Hiring a licensed contractor and having the permit pulled in their name moves that risk off you.
What Actually Happened in Cortez v. Abich
The remodel was substantial. Significant portions of the house were demolished and rebuilt, and new rooms were added. The homeowner acted as owner-builder rather than hiring a licensed general contractor, and the man hired to run it wasn’t licensed either.
Octoviano Cortez was the laborer. He was hired by the unlicensed contractor, not by the homeowner directly, which is the detail most people assume protects them. He was badly injured working on the roof demolition, and he sued the homeowners for negligence and premises liability.
The trial court threw the case out. The Court of Appeal agreed on one key point, holding that a home remodel counted as “household domestic service,” a category that Cal-OSHA safety rules specifically don’t reach. Housekeepers and nannies, essentially. Not job sites.
The Supreme Court reversed that in 2011. Its reasoning was textual rather than dramatic: the statute defines covered employment to include excavation, demolition, and construction work, and tearing off a roof to add rooms to a house is demolition and construction by any ordinary reading. So the domestic-service carve-out didn’t apply, and the homeowners lost the shield they were standing behind. You can read the full opinion if you want the whole thing.
Where the “Employer” Part Actually Comes From
Worth being precise about this, because it’s the part that gets garbled in retellings, including some legal blogs.
The Supreme Court in Cortez did not rule that homeowners are automatically the employers of unlicensed workers. It expressly said the opposite, calling the question of whether unlicensed contractors and their workers must be treated as homeowners’ employees “difficult and unsettled” in that court.
The employer status came from somewhere else: California Labor Code section 2750.5, plus a 1998 Court of Appeal decision called Rosas v. Dishong. The statute works out this way in practice. An unlicensed person doing work that requires a license can’t be an independent contractor as a matter of law. Strip away “independent contractor” and one label is left, which is employee. Employee of whoever hired them.
So the mechanism is two pieces stacked. The Labor Code makes you the employer because your contractor was unlicensed. Cortez then confirms that workplace safety standards apply to the project, so a plaintiff can build a negligence claim on top of safety violations at what you thought was just your house.
Cortez also didn’t end with the homeowners paying out. It ended with them losing the argument that would have gotten them dismissed, which sent the case back to be fought on the merits. That’s still a personal injury lawsuit you’re defending as an employer, without an employer’s insurance.
None of this is legal advice, and if you’re in the middle of something like this you want an actual construction attorney rather than a blog post. What follows is the practical shape of the risk.
You Sign This Exact Warning to Get the Permit
Here’s the part that makes the whole thing slightly absurd. California building departments hand owner-builder applicants a declaration to initial, line by line, before issuing the permit.
Pull up a typical owner-builder property owner’s package and you’ll find the homeowner agreeing, in writing, that they may be held liable and subject to serious financial risk for injuries sustained by an unlicensed person and that person’s employees while working on the property. The same form has them acknowledge their homeowner’s insurance may not cover those injuries, that they’re the responsible party of record on the permit, and that they could protect themselves by hiring a licensed contractor and having the permit filed in the contractor’s name instead.
People initial all of it in about ninety seconds at a counter, on the way to saving what they think is fifteen percent.
The Insurance Gap Is the Real Problem
Most homeowners assume their policy absorbs anything that happens on their property. It’s a fair assumption for a guest tripping on a step. It’s a bad assumption for a construction injury on a project you’re running.
CSLB puts it plainly on its own owner-builder risks page: if your workers are injured, or your subcontractors are unlicensed or carry no liability and workers’ compensation coverage and they get hurt, you could be asked to pay for injuries and rehabilitation through your homeowner’s policy, or face lawsuits.
Read that as a range of outcomes rather than a promise of coverage. Some policies pay something for residence employees. Many exclude construction work, business activity, or injuries to workers on a project the homeowner is directing. The dollar figures in construction injury claims tend to run well past residential policy limits anyway, and the gap between the claim and the coverage is you.
There’s also the paperwork side people forget entirely. CSLB’s owner-builder responsibilities page notes that if you use anyone other than a licensed subcontractor, you may be considered an employer, which brings state and federal registration, income tax withholding, Social Security taxes, workers’ compensation insurance, disability, and unemployment compensation. Nobody remodeling a bathroom expects to become a payroll department.
The Liens You Didn’t See Coming
One more piece worth knowing, because it’s the risk that shows up even when nobody gets hurt.
As owner-builder, you’re responsible for ordering materials and making sure suppliers get paid, and for supervising, scheduling, and paying subcontractors. If your unlicensed contractor collects your money and stiffs the lumber yard or the framer, those parties can file mechanics liens against your property. You paid once. The lien says you owe it again, and it attaches to the house.
When Owner-Builder Actually Makes Sense
This isn’t an argument that the exemption is a trap in every case, and plenty of capable people use it well.
It works when you’re genuinely doing the work yourself, or when you’re contracting with properly licensed subcontractors and you understand what supervising them involves. Per CSLB’s definition, the site has to be your principal residence, occupied for twelve months before the work is finished, and you can’t build and sell more than two structures in any three-year period.
Where it goes wrong is specific and predictable. You sign as owner-builder to skip a general contractor’s fee, then hand the actual work to someone unlicensed because their number was better. That combination is what produced Cortez. The permit put the homeowner in the GC’s chair, and the unlicensed hire made them an employer while sitting in it.
How to Keep the Savings Without the Liability
A few things that actually reduce exposure, in rough order of how much they matter.
- Have the permit pulled in a licensed contractor’s name. That single move puts the responsible party of record on someone carrying a license and insurance.
- Verify every license number yourself at cslb.ca.gov, and confirm the name on the license matches the name on the contract and the invoice.
- Get certificates of insurance for general liability and workers’ comp emailed directly from the carrier, not screenshotted.
- Confirm the license classification covers your work, because a general license doesn’t authorize a panel upgrade.
- Ask your own insurance agent, in writing, what your policy does with a worker injury on a project you’re directing. Do this before the project, not after the claim.
- If you still want to owner-build, use only licensed subs, and keep lien releases as you pay each one.
Our earlier piece on handyman red flags and the questions to ask covers the behavioral side of vetting.
Why We’d Rather You Verify Us
We’ve had to earn our way into properties tied to names like Pandora, Macy’s, Chanel, and Nordstrom, and we carry $2 million in general liability coverage. Neither fact makes anyone better with a nail gun. What they answer is the question sitting underneath this entire article, which is who pays when something goes wrong on your property.
When the permit is in a licensed contractor’s name and that contractor is insured, an injury on your job is their claim. When it’s in yours and the crew is unlicensed, it’s yours. That’s the whole difference, and it costs a lot less than most people assume.
You can see the range of what we handle on our services page, browse completed work in our portfolio, or read a bit about who we are. Landlords and property managers might want our guide to reducing maintenance costs, and if you’re weighing what to fix first, we wrote about home repairs that get expensive when ignored.
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Frequently Asked Questions
What is an owner-builder in California?
A property owner who acts as their own general contractor on a project at their own property. The site must be your principal residence, occupied for twelve months before the work finishes, and you can’t build and sell more than two structures in any three-year period.
Can I be sued if a worker is injured at my house?
Yes, and hiring through an unlicensed contractor makes it considerably more likely. Under Labor Code section 2750.5, an unlicensed person doing licensed work can’t be an independent contractor, which can make you their employer for liability purposes.
Does homeowner’s insurance cover a construction worker’s injury?
Sometimes partially, often not at all. CSLB warns that you could be asked to pay through your policy or face lawsuits. And many of these policies exclude construction or business activity. Ask your carrier specifically, in writing, before work starts.
Is it cheaper to be an owner-builder?
On paper you skip a general contractor’s fee, which is usually a meaningful percentage. What you take on instead is scheduling, supervision, code compliance, supplier payment, lien exposure, and potential employer liability, and one injury claim erases the savings many times over.
What did Cortez v. Abich decide?
The California Supreme Court held in 2011 that Cal-OSHA’s household domestic service exemption doesn’t cover a substantial residential remodel involving demolition and construction, so workplace safety standards applied to the project.
How do I avoid owner-builder liability?
Hire a licensed contractor and have the building permit issued in their name, so they’re the responsible party of record. Verify the license and insurance yourself before any money changes hands.
Final Thoughts
A remodel that added 750 square feet to a house turned into a Supreme Court case. Just because of 2 decisions. The homeowner signed the permit. Then they hired someone unlicensed.
Either one alone is survivable. Together they moved a construction injury out of a contractor’s insurance policy and onto a family’s house.
The fee you avoid by owner-building is a known number you can see on a quote. The liability you pick up is an unknown number you find out about later, usually from a lawyer.
This same California paperwork trap shows up in renter repair law too, and if you want to see what happens when unlicensed work gets caught rather than just risked, 14 arrests and $174,000 gone covers the enforcement side.
Anyways….
Thinking about pulling your own permit and want a straight answer about whether it’s worth it? We at The Handy Geeks handle a lot. From repairs, maintenance, and remodels for homes, rentals, and commercial properties, licensed, insured, and happy to be the name on the permit.
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