Construction Defects in California: Builder Liability and Homeowner Remedies

What Should You Do When Your Home Has Construction Defects?

A construction defect is a deficiency in the design, materials, or workmanship of a building that results in damage to the structure or fails to meet applicable building codes and standards. Few experiences are more disheartening than discovering that your newly built or recently renovated home has serious construction defects. The roof leaks, the foundation cracks, the plumbing fails, or the drainage system sends water into your living space instead of away from it. These are not minor inconveniences — they are failures that can render a home uninhabitable and cost tens or hundreds of thousands of dollars to repair.

I have represented homeowners who purchased properties from reputable builders only to discover, sometimes years after moving in, that the construction fell far below acceptable standards. The common thread in these cases is that the defects were not visible during a standard home inspection. They were hidden behind walls, beneath floors, and under landscaping — ticking time bombs that only revealed themselves when the damage became impossible to ignore.

What Qualifies as a Construction Defect in California?

California's Right to Repair Act, codified in Civil Code Sections 895-945.5 (commonly known as SB 800), defines specific construction standards that builders must meet. The law covers virtually every component of residential construction: foundations, structural elements, roofing, plumbing, electrical systems, exterior walls, windows, doors, drainage, and soil-related issues.

A defect exists when any of these components fails to perform as required by the standards established in the Act. This is a significant departure from the common law approach, which required homeowners to prove negligence. Under SB 800, the focus is on whether the construction meets the defined standards, not on whether the builder was careless. If the roof leaks, that is a violation of Section 896(a), regardless of how careful the roofer was during installation.

What Is the Pre-Litigation Process for Construction Defect Claims?

Before a homeowner can file a construction defect lawsuit against a builder, SB 800 requires a mandatory pre-litigation process. The homeowner must provide the builder with written notice of the claimed defects, and the builder has the right to inspect the property, document the conditions, and offer to repair the defects or settle the claim.

This process has specific timelines. The builder must acknowledge the claim within 14 days, complete an inspection within 14 days after that, and provide a written offer of repair within 30 days of the inspection. If the builder fails to respond or the homeowner rejects the repair offer as inadequate, the homeowner may proceed with litigation. In my experience, this pre-litigation process resolves a meaningful percentage of construction defect claims, but only when the builder takes the process seriously and offers genuine repairs rather than cosmetic patches.

Step	Timeline	Requirement
1. Written Notice to Builder	Before filing suit	Describe defects in reasonable detail (Civil Code § 910)
2. Builder Acknowledgment	14 days after notice	Builder must acknowledge receipt
3. Builder Inspection	14 days after acknowledgment	Builder inspects the claimed defects
4. Written Repair Offer	30 days after inspection	Builder offers to repair or compensate
5. Homeowner Response	Reasonable time	Accept, reject, or negotiate offer
6. File Lawsuit (if unresolved)	Within statute period	10 years latent / 4 years patent (CCP § 337.15)

Statutes of Limitation and Repose

Construction defect claims in California are subject to specific time limits that vary by the type of defect. The statute of limitations — the deadline for filing a lawsuit — is generally four years from the date the defect was discovered or should have been discovered. But California also imposes statutes of repose, which set absolute deadlines measured from the date of substantial completion of construction, regardless of when the defect was discovered.

For most defects, the statute of repose is ten years under Code of Civil Procedure Section 337.15. For latent defects — those not apparent through reasonable inspection — the period is also ten years. For patent defects that are readily observable, the period is shorter. These overlapping deadlines create a complex timeline that requires careful analysis to ensure claims are filed before any applicable deadline expires.

Theories of Liability

Homeowners pursuing construction defect claims in California may proceed under several legal theories. The SB 800 standards provide a statutory basis for claims against original builders of residential properties. Breach of contract claims arise from the construction contract itself, which impliedly requires work to be performed in a good and workmanlike manner. Negligence claims hold builders and subcontractors to the standard of care expected of competent professionals in their trades.

Strict liability may apply when a builder sells a defective home, treating the transaction similarly to a product sale. The implied warranty of habitability, recognized in Pollard v. Saxe & Yolles Dev. Co. (1974), provides additional protection for homebuyers, establishing that every new home sold carries an implied warranty that it is suitable for habitation.

Taking Action

If you discover construction defects in your home, the most important steps are to document everything and act promptly. Photograph the defects, keep records of any water intrusion or damage, preserve any communications with the builder, and consult with an attorney before the statutes of limitation or repose expire. The sooner you act, the more options you have — and the better your chances of holding the responsible parties accountable for the cost of making your home what it should have been from the beginning.