California · Penalties in every state · What needs no permit here

Building without a permit in California

By Mario Bailey Last checked · 3 official sources

Quick answer

California makes it a criminal misdemeanor to violate the State Housing Law or the State Building Standards Code provisions adopted under it, which covers construction, alteration, or maintenance of a building without required permits. The state ceiling is a fine up to $1,000, up to six months in jail, or both.

Source: Health & Safety Code 17995; Health & Safety Code 17960; Business & Professions Code 7031.5. Details and the official text are cited below.

What California law says

California makes it a criminal misdemeanor to violate the State Housing Law or the State Building Standards Code provisions adopted under it, which covers construction, alteration, or maintenance of a building without required permits. The state ceiling is a fine up to $1,000, up to six months in jail, or both. Enforcement is local: the building department of every city or county enforces the State Building Standards Code within its own jurisdiction, so most cities and counties also layer their own municipal-code penalty on top of the state misdemeanor. Permit applicants face a separate, smaller exposure too: anyone who files a false or missing contractor-license statement on a permit application is subject to a $500 civil penalty.

Cited from Health & Safety Code 17995; Health & Safety Code 17960; Business & Professions Code 7031.5: official text. Localities enforce these rules and may add their own fees and procedures on top.

Can you get a permit after the work is done?

California has no separate statewide as-built or retroactive-permit statute. Instead, Health and Safety Code 17980 sets the abatement process a local enforcement agency must follow once it finds a building built, altered, or maintained in violation of adopted building standards, which reaches unpermitted work discovered after the fact. The agency must give 30 days notice to abate, or a shorter notice if there is an immediate health or safety threat, before it can start a court action. Once a building is found substandard, the agency must move to abate it by repair, rehabilitation, vacation, or demolition, and the owner gets to choose repair over demolition unless the repair is not completed on the required schedule. Agencies must prefer repair over vacation of the building when it is economically feasible without requiring more than 75% of the dwelling to be repaired. The actual permit fee and any penalty multiplier charged for work done without a permit is set by local ordinance, not by state statute.

Cited from Health & Safety Code 17980(a); 17980(c)(1)-(2): official text.

The typical path, whatever your locality calls it: stop any ongoing work, contact the permit office before they contact you, apply for the permit describing what was actually built, and expect the office to require opening up or inspecting concealed work. Voluntarily coming forward generally goes better than waiting for a complaint or a sale to surface it.

What California permit offices charge when work starts first

The statute above sets the ceiling; the bill comes from the local office. 2 California jurisdictions we cover publish a specific surcharge for work started before the permit, quoted here from the fee schedule or permit page we verified, each linked to the page that carries the citation.

Jurisdictions not listed either publish no surcharge clause or publish one we could not quote from an official schedule; their permit pages state what we could verify.

Who can pull the permit

California exempts an owner from contractor licensing under section 7044 when they personally perform all the work on their own property, or any work they do not perform themselves is done by their own employees paid only wages, and none of the improvements are intended or offered for sale. It also exempts an owner who directly contracts with licensed contractors for each trade, as long as no more than four of the single-family residential structures involved are intended or offered for sale in a calendar year; this route does not apply if the owner instead contracts with a general contractor for the construction. A homeowner may also improve their own principal residence without a license, as long as the work is done before any sale, they have actually resided there for the 12 months before completion, and they have not used this exemption on more than two structures more than once in any three-year period. Selling a self-built structure within one year of completion creates a rebuttable presumption that it was built for sale, which defeats the exemption, and selling five or more structures within a year makes that presumption conclusive. Separately, every city or county that requires a permit must also require the applicant to file a signed statement giving their contractor license number or the basis of their claimed exemption; a false or missing statement carries a civil penalty of up to $500.

Cited from Business & Professions Code 7044(a)-(b); Business & Professions Code 7031.5: official text.

Common questions about unpermitted work in California

What is the penalty for building without a permit in California?
California makes it a criminal misdemeanor to violate the State Housing Law or the State Building Standards Code provisions adopted under it, which covers construction, alteration, or maintenance of a building without required permits. The state ceiling is a fine up to $1,000, up to six months in jail, or both. (Health & Safety Code 17995; Health & Safety Code 17960; Business & Professions Code 7031.5)
Can you get a permit after the work is done in California?
California has no separate statewide as-built or retroactive-permit statute. Instead, Health and Safety Code 17980 sets the abatement process a local enforcement agency must follow once it finds a building built, altered, or maintained in violation of adopted building standards, which reaches unpermitted work discovered after the fact. (Health & Safety Code 17980(a); 17980(c)(1)-(2))
Who can pull a permit in California?
California exempts an owner from contractor licensing under section 7044 when they personally perform all the work on their own property, or any work they do not perform themselves is done by their own employees paid only wages, and none of the improvements are intended or offered for sale. It also exempts an owner who directly contracts with licensed contractors for each trade, as long as no more than four of the single-family residential structures involved are intended or offered for sale in a calendar year; this route does not apply if the owner instead contracts with a general contractor for the construction. (Business & Professions Code 7044(a)-(b); Business & Professions Code 7031.5)

Was a permit needed in the first place?

Not every project needs one. Across the 14 California jurisdictions we have verified, 0 answered rules need no permit at all and 60 turn on a size or scope condition the jurisdiction publishes. If the work falls under one of those, the question changes from penalties to paperwork.

What you can build without a permit in California, jurisdiction by jurisdiction

Related situations in California

How California compares: building without a permit, state by state.

See which parts of the work needed a permit, then send us the details

Permit help

Want help getting unpermitted work approved?

Tell us where your project stands. Where we have a vetted local pro who handles permits in California, we connect you; otherwise we reply with the exact steps and office links for your situation. Free to ask; no obligation.

PermitNotebook is not a government agency and does not file permits. This is a free referral request; we may earn a fee if you hire a pro we introduce. Partners never influence our permit data. Privacy policy.

From the Library

Your local permit office

Enforcement, after-the-fact fees, and the exact fix-it process are local. We cover these California permit offices:

Official sources

This page summarizes state law from the official sources listed above, with a last checked date. It is not legal advice. Penalties and procedures are applied by local offices and courts case by case; for anything contested or high stakes, confirm with your permit office or a licensed professional in California.