Cal. Sts. & Hy. Code § 740.5
The department shall transmit a copy of such map, insofar as it relates to the land within a city, to the planning commission of the city or, if the city has not created a planning commission, to the governing body of the city.
The planning commission of such city or, if the city has not created a planning commission, the governing body of such city acting as a planning commission, shall thereafter notify the department of any application for a building permit for a building costing five thousand dollars ($5,000) or more in sufficient time to give the department an opportunity to purchase the right-of-way from such applicant.
The notices required to be given by the planning commission, or by the governing body acting as a planning commission, may be given by any other officer, board, commission, or department designated for that purpose by resolution of the governing body.
Ca. Sts. and High. Code § 740.5