This chapter shall be enforced by the City Clerk, City Manager or Planning Commission or designee, acting under the direction of the Mayor. Requests for building permit forms shall be obtained from the City Clerk. Requests to erect, alter, move or improve all buildings shall be approved by the City Manager after verifying that the plans are in conformance with all ordinances of the City. It is a violation of this chapter for any person to change or permit the change in the use of land or buildings or structure or to erect, alter, move or improve any building or structure until a building permit or certificate of occupancy has been obtained. (1986 Code)