"In January 2015, the First District Court of Appeals decided that, while Costa–Hawkins allows a landlord to establish a new rental rate where the "original occupants" on the lease no longer permanently reside at the premises, this decontrol was not available to the landlord where a minor child, who moved in with his parents at the commencement of the lease, remained there after they had vacated.In "Mosser Companies v. San Francisco Rent Stabilization and Arbitration Board", the appellate court affirmed the trial court's judgment.