MEMORANDUM **

Mehrdad Taimourzadeh appeals pro se from the district court’s judgment dismissing his Americans with Disabilities Act (“ADA”) action alleging that defendants *657 discriminated against him on the basis of his disability. We have jurisdiction under 28 U.S.C. § 1291. We review de novo a district court’s dismissal of an action as barred by the doctrine of res judicata. W. Radio Servs. Co., Inc. v. Glickman, 128 F.3d 1189, 1192 (9th Cir. 1997). We affirm.

The district court properly dismissed Taimourzadeh’s action on the basis of res judicata (claim preclusion) because his ADA and related state law claims were based on the same primary right asserted in a prior state court action that was dismissed with prejudice and Taimourzadeh did not appeal that dismissal. See Manufactured Home Cmtys., Inc. v. City of San Jose, 420 F.3d 1022, 1031 (9th Cir. 2005) (“To determine the preclusive effect of a state court judgment federal courts look to state law. California’s res judicata doctrine is based on a primary rights theory.” (citation omitted)); see also Citizens for Open Gov’t v. City of Lodi 205 Cal.App.4th 296, 140 Cal.Rptr.3d 459, 482 (2012) (concluding that a ruling was final for res judicata purposes when the time to appeal the trial court judgment had expired).

AFFIRMED.