Cal. Public Resources Code § 5029

(a) The commission shall, within 90 days after the approval by the director of the issuance by the commission of an historical resources designation for an individual property, submit to the county recorder for recordation, and the county recorder shall record, a certified resolution establishing the historical resources designation. For historical resources designations approved prior to March 15, 1993, the commission may submit for recordation, and the county recorder shall record, a certified resolution of historical resources designation. (b) Any local agency, or unit thereof, shall, within 90 days of an historical resources designation by the local agency or unit for an individual property, submit to the county recorder for recordation, and the county recorder shall record, a certified resolution establishing the historical resources designation. For historical resources designations made prior to March 15, 1993, the local agency, or unit thereof, may submit for recordation, and the county recorder shall record, a certified resolution of historical resources designation. (c) The resolution shall include the name of the current property owner, the designating entity, the specific historical resources designation, and a legal description of the property. (d) The recorder shall index the recorded resolutions of the commission or local agency, or unit thereof, listing the respective agency as the “grantor” and the current owner as the “grantee” for that purpose. (e) For the purpose of this section, the term “historical resources designation” means the California Register of Historical Resources and any local historical resources designation resulting in restrictions on demolitions or alterations. (f) This section shall have no effect on the right, title, or interest in the property identified after March 15, 1993, which is acquired by a bona fide purchaser for value between the time of designation of the property as a historical resource and time that the designation is recorded unless the purchaser had actual knowledge of the designation. (g) This section shall have no effect upon the title to any property that is subject to this section.