Cal. Gov. Code § 37114
If real property is conveyed by a city and it is subsequently determined and mutually agreed by the legislative body of the city and the person to whom the property was conveyed that an error was made in the description of the property conveyed, so that less property is included in the description than was intended by the parties, the legislative body of the city may by resolution recite the facts of such error and approve such determination and agreement; thereafter the legislative body may execute or cause to be executed a corrective deed without conforming to the requirements of law, if any, for the sale of real property by cities and without commencing a judicial action to reform the deed.
A similar procedure may be followed with respect to property conveyed to a city, where the error results in more property being conveyed than was intended. In either case the resolution of the legislative body shall be conclusive as to the facts recited therein as to good faith purchasers or encumbrancers for value.
This section shall not apply to a conveyance by or to a city if the error is in the published description required by law or charter, nor shall this section require notice of such sale or purchase to be published if not otherwise required by law.
Ca. Gov. Code § 37114