California construction litigation runs on a set of state-specific rules that reward preparation and punish delay. Whether the dispute involves defective work, unpaid invoices, or a project that finished late, the party bringing a claim has to clear threshold requirements, follow mandatory pre-suit procedures for certain claim types, and file within strict deadlines that vary by legal theory. Getting any of those steps wrong can end a case before the merits are ever heard.
The Three Main Types of Construction Disputes
Most California construction cases involve one or more of three categories. Defect claims allege that design, materials, or workmanship caused a building to fail or fall short of applicable standards. For new residential construction, the Right to Repair Act sets statutory performance standards covering water intrusion, structural integrity, soil and drainage, and building systems, and a violation is actionable even before visible damage appears.1California Legislative Information. California Civil Code 896
Payment disputes arise when someone on the project doesn’t get paid. Contractors and suppliers have contract claims, equitable claims for the reasonable value of their work when contracts are unclear, and statutory tools like mechanics liens and stop payment notices to force resolution.
Delay claims target a party’s failure to finish on time. Construction contracts often include a liquidated damages clause fixing a daily amount owed for each day past the completion deadline, and courts enforce those clauses when the agreed amount reasonably estimates the actual harm.2CSI Resources. Liquidated Damages: Compensation for Late Completion Sorting out who caused the delay usually requires technical schedule analysis.
Contractor Licensing Comes First
Before any other question, California asks whether the contractor was licensed. An unlicensed contractor cannot sue or recover any money for the 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 correct classification, for the entire time the contractor was on the job. Even a short lapse bars the claim.
The rule works in reverse too. A property owner who hired an unlicensed contractor can sue to recover every dollar paid for the work, and any security interest the contractor took to secure payment is unenforceable.3California Legislative Information. California Business and Professions Code 7031 A narrow exception exists for previously licensed contractors who acted in good faith to keep their license current and moved quickly once they discovered a lapse.
This catches people constantly. A subcontractor who lets a license expire mid-project can lose the right to collect fees they’ve already earned. Verify status through the Contractors State License Board before signing and periodically during the job.
The Right to Repair Act Pre-Litigation Process
For defect claims involving new residential construction purchased after January 1, 2003, the homeowner cannot go straight to court. The Right to Repair Act, starting at Civil Code Section 895, imposes a mandatory pre-litigation process that gives the builder a chance to inspect and either repair the defect or make a settlement offer.4Contractors State License Board. Construction Defect Notice to Owners of New Residential, Single-Family Homes
Notice and Inspection Deadlines
The homeowner starts by sending the builder a written claim by certified mail, overnight delivery, or personal delivery, describing the alleged defect in enough detail for the builder to understand what and where.5California Legislative Information. California Civil Code 910
If the builder chooses to inspect, the initial inspection and any testing must be completed within 14 days after the builder acknowledges the claim.6California Legislative Information. California Code CIV 916 If a second inspection is warranted, the builder must state the reasons in writing within three days of the first inspection and complete the second within 40 days of the first. Missing any of these deadlines releases the homeowner from the pre-litigation requirements, and the homeowner can file suit.
Repair, Cash, or Court
After inspections, the builder may offer repairs, a cash settlement, or both. A homeowner who accepts repairs has 30 days to authorize the work and can request a list of up to three independent contractors to perform it instead. A homeowner who wants to negotiate can demand mediation at the builder’s expense. If the builder offers only cash and the homeowner rejects it, the homeowner can proceed to litigation.
Mechanics Liens and Preliminary Notices
A mechanics lien is the most powerful collection tool available to anyone who supplies labor or materials to a California project. It attaches to the property, clouds the title so the owner cannot sell or refinance until it is resolved, and, if unpaid, can be foreclosed through a court-ordered sale.7California Legislative Information. California Code Civil Code 8416
Who Has to Send a Preliminary Notice
Before recording a lien, most claimants must first 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 has to serve it. That covers subcontractors, material suppliers, and equipment rental companies. A late notice doesn’t destroy lien rights entirely, but it limits the claim to work performed within 20 days before service and anything after that.
Recording and Foreclosure Deadlines
A general contractor must record the lien after completing the contract but before the earlier of two dates: 90 days after the work of improvement is completed, 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.
After recording, a new deadline starts. The claimant must file a foreclosure lawsuit within 90 days of recording. If they don’t, the lien expires automatically.10California Legislative Information. California Civil Code 8460 The only exception is a written credit extension recorded within the 90-day period, and even then the foreclosure action must be filed within one year after the work of improvement was completed.
Stop Payment Notices and Public Project Bonds
A stop payment notice targets the project’s money rather than the property. Serving the notice on the owner or construction lender forces those parties to withhold enough project funds to cover the debt. The notice works only if the claimant already 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
Stop payment notices matter most on public projects, where mechanics liens cannot attach to government-owned property. On state public works contracts exceeding $25,000, the prime contractor must post a payment bond equal to at least 100 percent of the contract price, giving subcontractors and suppliers a bond claim in place of a lien.12California Legislative Information. California Code Public Contract Code 7103
Deadlines to File Suit
California uses two different kinds of time limits, and they operate independently.
Statutes of Limitations
The statute of limitations sets the deadline for filing after a problem is discovered or should have been discovered. It varies by 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 based on negligence or trespass: three years from discovery.14California Legislative Information. California Code of Civil Procedure 338
In defect cases, the discovery rule often delays the start of the clock. A homeowner who doesn’t notice a hidden plumbing problem for two years after moving in hasn’t automatically lost their claim, because the period runs from the date the defect was, or reasonably should have been, discovered.
The Ten-Year Statute of Repose
The statute of repose is an absolute outer boundary. No claim based on a latent construction defect can be filed more than ten years after substantial completion, regardless of when the defect is discovered.15California Legislative Information. California Code of Civil Procedure 337.15 A latent defect is one that would not appear on a reasonable inspection. The ten-year period runs from the earliest of the final public agency inspection, the recording of a notice of completion, the owner’s beginning use of the improvement, or one year after work stops.
The repose statute does not shield builders who engaged in fraud or willful misconduct. Those claims survive past ten years.15California Legislative Information. California Code of Civil Procedure 337.15
Doctrines That Shape What You Can Recover
The Economic Loss Rule
When a construction defect causes only economic harm, like the cost to repair defective work or lost profits, the remedy generally lies in contract, not tort. Tort claims open up when the defect physically damages other property or injures someone. California’s Supreme Court has recognized that a breach of contract can also support tort damages when the breach involves an independent wrongful act like fraud or intentional misrepresentation.
The Right to Repair Act largely sidesteps this rule for new residential construction. Because the Act creates independent statutory performance standards, homeowners can recover the cost of repairing violations without proving damage to anything beyond the defective component itself.1California Legislative Information. California Civil Code 896
Implied Warranties on Residential Work
California imposes implied warranties on residential builders regardless of what the contract says. The implied warranty of habitability guarantees a home is safe and fit for its intended purpose. The implied warranty of reasonable workmanship requires construction to meet the standard a competent builder would achieve. Both extend to subsequent purchasers, not just the original buyer. These claims are separate from contract and negligence theories, and they sometimes survive when other claims are barred by the economic loss rule or a shorter limitations period.
Design Professional Standard of Care
Architects and engineers are judged against a different standard. The question is whether the design professional exercised the level of skill and care that a reasonably competent professional in the same field would have used under similar circumstances, taking into account local codes, regional practices, and site conditions. Errors in professional judgment are not automatically negligence. Proving a design negligence claim almost always requires expert testimony from someone in the same discipline.
Indemnity Clauses California Won’t Enforce
Indemnity clauses are standard in construction contracts, and California voids the aggressive ones. Any clause that requires a contractor or subcontractor to indemnify another party for that party’s sole negligence or willful misconduct is 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 active negligence onto a contractor, subcontractor, or supplier are void. The same rule applies to private projects where the owner is not acting as a contractor: that owner cannot use indemnity to offload liability for its own active negligence onto the parties doing the work.16California Legislative Information. California Civil Code 2782 Additional restrictions apply between residential builders and their subcontractors under the Right to Repair Act. Older form contracts frequently contain language California no longer enforces, so review before relying on it.
Attorney Fees Cut Both Ways
Under the general American rule, each side pays its own fees unless a contract or statute says otherwise. California adds a critical twist. If a construction contract contains an attorney fee provision favoring one party, Civil Code Section 1717 automatically makes it reciprocal. Whichever side wins the contract dispute can recover its reasonable fees, even if the clause only named one party.17California Legislative Information. California Code CIV 1717
A general contractor who drops a one-sided fee clause into a contract expecting to collect fees if it has to sue for payment can end up paying the owner’s fees if the owner prevails. The court determines the prevailing party based on who achieved greater relief. If the case settles or is voluntarily dismissed, neither side qualifies and no fees are awarded under Section 1717. Any contractual language purporting to waive fee rights under this section is void. In complex disputes where litigation costs can rival the amount at stake, the risk of paying the other side’s fees changes the calculus for both parties.