What Counts as a Construction Defect in California?

A construction defect is a failure of a building or improvement to perform as it should because of deficient workmanship, design, materials, or site preparation. The familiar categories are water intrusion, foundation movement and cracking, roofing failures, plumbing and electrical problems, and code violations, but defects range from cosmetic irritations to structural dangers.

California handles residential defects in new homes through the Right to Repair Act, Civil Code section 895 and following, which sets detailed functionality standards and requires homeowners to give builders notice and an opportunity to repair before most lawsuits. Different rules and deadlines govern commercial projects and renovation work. Limitations periods are layered: shorter periods for patent defects that are apparent on reasonable inspection, and an outside 10 year limit for latent defects that hide below the surface.

Defect cases are evidence-heavy: expert investigations, destructive testing, repair estimates, and fights over which of the developer, general contractor, subcontractors, design professionals, and their insurers bears each slice of responsibility. Early documentation and prompt notice protect both owners and builders.