Rancho Cucamonga, CA Rental Property Rules: Just Cause Eviction (2026)

1946.2. (a) Notwithstanding any other law, after a tenant has continuously and lawfully occupied a residential real property for 12 months, the owner of the residential real property shall not terminate a tenancy without just cause, which shall be stated in the written notice to terminate tenancy. If any additional adult tenants are added to the lease before an existing tenant has continuously and lawfully occupied the residential real property for 24 months, then this subdivision shall only apply if either of the following are satisfied: (1) All of the tenants have continuously and lawfully occupied the residential real property for 12 months or more. (2) One or more tenants have continuously and lawfully occupied the residential real property for 24 months or more. (b) For purposes of this section, "just cause" means either of the following: (1) At-fault just cause, which means any of the following: (A) Default in the payment of rent. (B) A breach of a material term of the lease, as described in paragraph (3) of Section 1161 of the Code of Civil Procedure, including, but not limited to, violation of a provision of the lease after being issued a written notice to correct the violation. (C) Maintaining, committing, or permitting the maintenance or commission of a nuisance as described in paragraph (4) of Section 1161 of the Code of Civil Procedure. (D) Committing waste as described in paragraph (4) of Section 1161 of the Code of Civil Procedure. (2) No-fault just cause, which means any of the following: (A) (i) Intent to occupy the residential real property by the owner or the owner's spouse, domestic partner, children, grandchildren, parents, or grandparents for a minimum of 12 continuous months as that person's primary residence. (B) Withdrawal of the residential real property from the rental market. (D) (i) Intent to demolish or to substantially remodel the residential real property.