Construction litigation in California runs on a tight set of statutes, mandatory pre-suit steps, and specialized doctrines that make it unlike ordinary contract fighting. Deadlines are short, some are absolute, and threshold rules like contractor licensing can end a case before anyone argues the merits. Knowing which rules apply to your dispute, and in what order, is usually the difference between a claim worth pursuing and one that is already lost.
What Kind of Construction Claim Do You Have
Most California construction disputes fall into three groups, and many lawsuits combine them.
Defect claims allege that design, materials, or workmanship caused a building to fail or fall short of applicable standards. Homeowners typically bring these as breach of contract, negligence, or statutory violations. For new residential construction, the Right to Repair Act sets out performance standards covering water intrusion, structural integrity, soil and drainage, plumbing, electrical, and fire protection, and a violation is actionable even before visible damage appears.1California Legislative Information. California Civil Code 896
Payment disputes arise when a contractor, subcontractor, or supplier doesn’t get paid for work or materials. These are usually breach-of-contract actions, but unpaid parties also have statutory tools — mechanics liens and stop payment notices — that work outside the contract.
Delay claims target a party’s failure to finish on time. Construction contracts often set a liquidated damages amount for each day past the completion deadline. Courts enforce these clauses when the agreed amount reasonably estimates the actual harm from delay rather than functioning as a penalty.2CSI Resources. Liquidated Damages: Compensation for Late Completion Sorting out who caused the delay usually requires technical schedule analysis.
Contractor Licensing Comes Before Everything Else
California’s licensing rule is a gatekeeper. An unlicensed contractor cannot file suit or recover any money for work they performed, no matter how strong the underlying claim.3California Legislative Information. California Business and Professions Code 7031 The license must have been valid, in the proper classification, for the entire time the work was performed. Even a brief lapse bars the claim.
It cuts the other way too. A property owner who hired an unlicensed contractor can sue to recover every dollar paid for the work, and any security interest the unlicensed contractor took is unenforceable.3California Legislative Information. California Business and Professions Code 7031 A narrow exception exists for a previously licensed contractor who acted in good faith to maintain licensure and promptly fixed the lapse once discovered.
Verify license status through the Contractors State License Board before any project starts and again if a dispute is brewing. A subcontractor who let a license expire mid-project can lose six figures in earned fees over a paperwork gap.
The Right to Repair Act Requires Pre-Suit Notice
For defect claims on new residential construction purchased after January 1, 2003, California requires a mandatory pre-litigation process before anyone can file suit.4Contractors State License Board. Construction Defect Notice to Owners of New Residential, Single-Family Homes The process, in the Right to Repair Act starting at Civil Code Section 895, lets the builder inspect and either repair or offer a settlement.
The homeowner begins by sending the builder a written claim by certified mail, overnight delivery, or personal delivery, describing the alleged defect with enough detail to show what is wrong and where.5California Legislative Information. California Civil Code 910 A homeowners association can identify affected units by address rather than listing every owner.
The statute sets strict inspection timelines for the builder. The initial inspection and any testing must be done within 14 days after the builder acknowledges the claim, and any second inspection within 40 days of the first.6California Legislative Information. California Code CIV 916 Missing any deadline releases the homeowner from the pre-litigation requirements and clears the way to court.
After inspections, the builder may offer repairs, cash, or both. The homeowner has 30 days to accept and authorize repair work, and may ask the builder for a list of up to three independent contractors to perform the repair instead. The homeowner can request mediation at the builder’s expense. If the builder offers only cash and the homeowner rejects it, the homeowner can file suit.
Mechanics Liens and Stop Payment Notices
A mechanics lien attaches to the property itself, clouds title, and can force a court-ordered foreclosure sale if the debt goes unpaid.7California Legislative Information. California Code Civil Code 8416 For most claimants it is the strongest collection tool available on a private project.
Preliminary Notice
Before recording a lien, most claimants must serve a preliminary notice on the property owner, general contractor, and any construction lender within 20 days of first providing labor or materials.8California Legislative Information. California Code CIV 8204 Anyone without a direct contract with the owner — subcontractors, material suppliers, equipment rental companies — has to serve it. A late notice doesn’t destroy lien rights entirely, but it limits the claim to work performed within 20 days before the notice was served and anything after.
Recording and Enforcement Windows
The timing is unforgiving. A general contractor must record the lien after completing the contract but before the earlier of 90 days after completion of the work of improvement or 60 days after the owner records a notice of completion.9California Legislative Information. California Civil Code 8412 Miss the window and the lien right is gone.
Once recorded, the claimant must file a foreclosure lawsuit within 90 days or the lien expires automatically.10California Legislative Information. California Civil Code 8460 A credit extension recorded within that 90-day period can push the deadline, but the foreclosure action must still be filed within one year after the work of improvement was completed.
Stop Payment Notices
A stop payment notice targets the project’s money rather than the property. Serving it on the owner or construction lender forces those parties to withhold enough project funds to cover the debt. The notice is valid only if the claimant served the required preliminary notice and files the stop payment notice before the mechanics lien recording deadline expires.11California Legislative Information. California Civil Code Title 2 Part 6 Chapter 5 Article 1
On public projects, mechanics liens cannot be recorded against government-owned property, so stop payment notices and payment bond claims carry the weight. On state public works contracts exceeding $25,000, the prime contractor must post a payment bond of at least 100 percent of the contract price.12California Legislative Information. California Code Public Contract Code 7103
How Long You Have to Sue
California imposes two separate kinds of time limits on construction claims, and confusing them is a common and expensive mistake.
Statutes of Limitations
The statute of limitations sets the deadline for filing suit after a problem is discovered or should have been discovered. The period depends on the legal theory:
- Breach of a written contract: four years from the date of breach.13California Legislative Information. California Code Code of Civil Procedure 337
- Breach of an oral contract: two years.
- Injury to real property under negligence or trespass: three years from discovery.14California Legislative Information. California Code of Civil Procedure 338
In defect cases the discovery rule often delays when the clock starts. A homeowner who doesn’t notice a hidden plumbing problem for two years after moving in hasn’t necessarily lost rights, because the period runs from the date they discovered or reasonably should have discovered the defect.
The Ten-Year Statute of Repose
Regardless of discovery, no claim based on a latent construction defect can be filed more than ten years after substantial completion.15California Legislative Information. California Code of Civil Procedure 337.15 A latent defect is one not visible on reasonable inspection. The ten-year clock starts from the earliest of the final public agency inspection, recording of a notice of completion, the date the owner begins using the improvement, or one year after work stops.
The repose period does not protect builders who engaged in fraud or willful misconduct. Those claims survive past the ten-year line.15California Legislative Information. California Code of Civil Procedure 337.15
Economic Loss Rule and Implied Warranties
The economic loss rule controls whether a party can sue in negligence for purely financial harm or is confined to contract. In general, when a construction defect causes only economic loss — the cost to repair defective work, lost profits — the remedy is in contract. Tort claims become available when the defect causes physical harm to other property or injures a person. California’s Supreme Court has recognized that a contract breach can support tort damages when it is accompanied by an independent wrongful act such as fraud or intentional misrepresentation.
For new residential construction, the Right to Repair Act largely sidesteps the rule. Because the Act creates independent statutory performance standards, homeowners can recover repair costs for code violations without proving damage beyond the defective component.1California Legislative Information. California Civil Code 896
California also implies warranties in residential construction. The implied warranty of habitability guarantees a home is safe and fit for its intended purpose; the implied warranty of reasonable workmanship requires work meeting the standard of a competent builder. Both apply even when the contract is silent on quality, and both protect subsequent purchasers in addition to the original buyer. Implied warranty claims are separate from contract and negligence theories, so they sometimes survive when other claims are barred by the economic loss rule or a shorter limitations period.
Design Professional Liability Is Judged Differently
Architects and engineers face a different standard than builders. The question in a design negligence case is whether the professional exercised the skill and care a reasonably competent professional in the same field would have used under similar circumstances. The standard is not perfection, and errors in professional judgment do not automatically equal negligence. The benchmark accounts for local codes, regional construction practices, and site conditions.
Because the standard varies by region and project type, proving design negligence almost always requires expert testimony from someone in the same discipline. A court or jury can’t simply decide a roof should have been designed differently; it needs an expert to explain what a competent architect or engineer would have done.
Indemnity Clauses Have Limits
Indemnity clauses in construction contracts usually push risk down the chain, often onto a subcontractor. California limits how far that can go. Any clause requiring a contractor or subcontractor to indemnify another party for losses caused by that other party’s sole negligence or willful misconduct is void and unenforceable.16California Legislative Information. California Civil Code 2782
For contracts entered on or after January 1, 2013, the restrictions go further. On public works, clauses shifting liability for the public agency’s own active negligence to a contractor, subcontractor, or supplier are void. The same rule applies to private projects where the property owner is not acting as a contractor: the owner cannot use indemnity to offload liability for its own active negligence onto parties doing the work.16California Legislative Information. California Civil Code 2782 Additional restrictions apply to indemnity between builders and subcontractors under the Right to Repair Act. Older form contracts frequently contain language California no longer enforces, so check existing provisions against the current statute.
Attorney Fee Recovery Is Reciprocal
Under the general American rule, each side pays its own fees unless a contract or statute says otherwise. Civil Code Section 1717 changes the calculation in construction contracts: if the contract includes an attorney fee clause favoring one party, California automatically makes the clause reciprocal. Whichever side wins the contract dispute can recover reasonable fees, even if the contract names only one party as the fee recipient.17California Legislative Information. California Code CIV 1717
A general contractor who inserts a one-sided fee clause expecting to collect on a payment suit may end up paying the owner’s fees if the owner wins. The court decides the prevailing party based on who achieved greater relief. If the case settles or is voluntarily dismissed, neither side qualifies as prevailing under Section 1717, and no fees are awarded. Any contractual language purporting to waive these fee rights is void. In disputes where litigation costs can rival the amount at stake, that reciprocity fundamentally changes the risk calculation on both sides.