Health and Safety Code § 33374
ARTICLE 5. Procedure for Adoption of Redevelopment Plans by the Legislative Body
After the adoption of a redevelopment plan for a project area by the legislative body, all applicants for building permits in the area for a period of two years thereafter shall be advised by the building department of the community that the site for which a building permit is sought for the construction of buildings or for other improvements is within a redevelopment project area.