Licensing & CSLB
Unpermitted work rarely creates a problem when it is done. It creates a problem when someone else finds it — an inspector, an appraiser, or most often a buyer’s inspection during a sale years later. At that point a contractor can face two entirely separate tracks: a disciplinary exposure under the Contractors State License Law, and a civil exposure to whoever is now holding the property. This guide, reviewed by Jayson R. Elliott, keeps the two apart, because they run on different rules and different clocks.
This is worth getting right at the outset, because it explains why the analysis splits the way it does. The Contractors State License Law does not itself require permits. Permit requirements are set by building laws — the state building standards as adopted and amended, and the local ordinances of the city or county with jurisdiction. What varies between jurisdictions is which work requires a permit and what the process is.
The license law enters as a consequence. Business and Professions Code section 7110 makes willful or deliberate disregard and violation of the building laws of the state or of any political subdivision a cause for disciplinary action. So the permit obligation comes from the building code, and the license exposure comes from disregarding it.
That structure has a practical implication contractors sometimes miss: whether a permit was required is a question about the local code in force at the time and place of the work, not a question the license law answers.
Section 7110 reaches willful or deliberate disregard and violation of state or local building laws, along with safety and labor laws, compensation insurance laws and the Unemployment Insurance Code, the Subletting and Subcontracting Fair Practice Act, and specified Health and Safety Code and Water Code provisions.
Two points carry over from the discipline guide. Section 7110 has no counterpart to section 7109(a)’s architect-prepared-plans exception — so plans stamped by an architect do not answer a charge under this section. And the willfulness element is generally understood to require only a general intent to do the act rather than a specific intent to violate the law, though appellate treatment of that question has not been uniform and the term is undefined in the statute.
Unpermitted work often travels with workmanship allegations, but those are a separate provision. Section 7109(a) addresses willful departure in any material respect from accepted trade standards, and section 7109(b) addresses willful departure from plans or specifications where it is prejudicial to another and made without the required consents.
Work can be unpermitted and perfectly built, or permitted and badly built. A contractor responding to a matter should know which section is actually being invoked, because a defense addressing workmanship does not answer a building-law charge.
Section 7091 sets the disciplinary limitation periods, and the way it is structured produces a question worth flagging on this specific topic.
Section 7091(a)(1) requires a complaint alleging patent acts or omissions to be filed within four years of the act or omission. Section 7091(b)(1) allows ten years for a complaint alleging latent acts or omissions — but that longer window is written narrowly. By its terms it applies to latent acts or omissions that may be grounds for action under section 7109(a), regarding structural defects as defined by regulation.
Read against the text, the ten-year window is tied to section 7109(a) grounds. A charge framed under section 7110 for disregard of building laws is not obviously within that subdivision’s scope. Whether and how that plays out in a given matter is not something this page can resolve — it depends on how the conduct is characterized and charged — but it is a genuine question, and it means the frequent shorthand that “unpermitted work carries a ten-year window” should not be taken at face value.
Note also section 7091(a)(2) and (b)(2): the deadline for the disciplinary action itself is the later of the underlying period or 18 months from the date the complaint was filed with the registrar. The age of the work alone does not settle whether a matter is timely.
Two clocks, one project Disciplinary track: §7091 periods, measured from the act or omission, with the 18-month-from-complaint extension. Civil track: Code Civ. Proc. §338(d) three-year fraud period with delayed discovery, and §337.15’s ten-year absolute repose for latent construction defects. They are independent. One closing tells you nothing about the other.
When unpermitted work turns up in a sale, the first obligations in play belong to the seller. The Real Estate Transfer Disclosure Statement requirements at Civil Code section 1102 and following run to the seller, and Civil Code section 1102.1 provides that an “as-is” sale does not waive them.
A contractor who performed the work years earlier is generally not a party to that transaction and is not the one making the disclosure. That distinction matters, and the related pillar on contractor liability in real estate transactions develops it — the contractor’s exposure, where it exists, arises from the contractor’s own conduct rather than from the seller’s disclosure duty.
A subsequent purchaser has no contract with the contractor, so any claim is in tort, and it faces two independent hurdles. The first is duty: whether a contractor owes a duty of care to a non-privity purchaser runs through the Biakanja v. Irving (1958) 49 Cal.2d 647 factors, extended to construction professionals in Beacon Residential Community Assn. v. Skidmore, Owings & Merrill LLP (2014) 59 Cal.4th 568 — though Beacon is an architect case and its extension to contractors specifically is doctrinal inference rather than a direct holding.
The second is the economic loss rule. Under Aas v. Superior Court (2000) 24 Cal.4th 627, negligence recovery is unavailable for construction defects that have not caused actual property damage or personal injury. Unpermitted work that is structurally sound and has damaged nothing is, in that framing, a purely economic problem — the cost of legalizing or redoing it. Where the work has caused damage, or where the project falls within the Right to Repair Act, the analysis changes.
Claims framed as concealment rather than negligence run on different rules again, and the current controlling authority on concealment and the economic loss rule is Rattagan v. Uber Technologies, Inc. (2024) 17 Cal.5th 1.
Two provisions bound the civil track. Code of Civil Procedure section 338(d) sets a three-year period for fraud with a delayed-discovery rule, under which the plaintiff bears the burden to plead the time and manner of discovery and the inability to have discovered earlier. Code of Civil Procedure section 337.15 sets a ten-year absolute statute of repose for latent construction defects, regardless of when they were discovered.
Most jurisdictions have some process for permitting work after the fact, and what it requires — inspections, exposing concealed work, engineering, bringing the work to current code rather than the code in force when it was built — varies substantially between them. It is a local question and this page cannot answer it for any particular property.
What is worth understanding is that legalization is usually the thing the parties actually want. A buyer wants a clean record; a seller wants the sale to close. Where a contractor is asked to participate in or fund that process, the request often arrives before anyone has decided whether there is a claim — which is precisely why what gets said in that period matters.
General points only. What a specific contractor should do depends on what was received and what the project file shows.
Before you ask
Business and Professions Code section 7110 makes willful or deliberate disregard and violation of the building laws of the state or of any political subdivision a cause for disciplinary action. The permit requirement itself comes from those building laws — state building standards and local ordinances — rather than from the Contractors State License Law, which supplies the disciplinary consequence.
No. The architect-prepared-plans exception appears in Business and Professions Code section 7109(a), which addresses departures from accepted trade standards. Section 7110, which reaches disregard of building laws, contains no counterpart — so building to architect-prepared plans does not answer a charge that the work violated building law.
There is no single answer, because the disciplinary and civil tracks run separately. On the disciplinary side, Business and Professions Code section 7091 sets a four-year window for patent acts and a ten-year window written specifically for latent acts that may be grounds under section 7109(a) regarding structural defects — with the disciplinary action itself due within the later of that period or 18 months from the complaint filing. On the civil side, Code of Civil Procedure section 337.15 sets a ten-year absolute repose for latent construction defects.
It should not be assumed. Business and Professions Code section 7091(b)(1) ties the ten-year complaint window to latent acts or omissions that may be grounds for action under section 7109(a) regarding structural defects as defined by regulation. A matter charged under section 7110 for disregard of building laws is not obviously within that subdivision, so the common shorthand that unpermitted work carries a ten-year window is worth checking against how the conduct is actually characterized.
The disclosure obligations under Civil Code section 1102 and following run to the seller, and Civil Code section 1102.1 provides that an “as-is” sale does not waive them. A contractor who performed the work years earlier is generally not a party to that transaction; any exposure the contractor has arises from the contractor’s own conduct rather than from the seller’s disclosure duty.
A buyer with no contract with the contractor must proceed in tort and faces two independent hurdles. Duty to a non-privity purchaser runs through the Biakanja v. Irving factors, and Aas v. Superior Court (2000) 24 Cal.4th 627 bars negligence recovery for defects that have not caused actual property damage or personal injury. Unpermitted work that is sound and has damaged nothing presents a purely economic loss in that framing.
Keep reading
Breadcrumb + pillar parent
“the discipline guide” — §7109/§7110 detail
§7091 timing detail
“the related pillar on contractor liability in real estate transactions”
Duty analysis for non-privity purchaser
Economic loss rule section
“the first-steps guide in the real estate pillar”
Civ. Code §1102.1 reference
Inline first mention: patent defect, latent defect, permit, repose, non-privity
Attorneys section — end of article
If this describes your situation, an attorney affiliated with Bay Legal PC, CA Bar No. 332479, can review it with you.