Louisiana Revised Statutes Tit. 33, § 109. Legal status of official plan

A. Whenever a commission has adopted a master plan of a parish or municipality, as the case may be, or one or more major sections or districts thereof and has filed certified copies thereof as provided in R.S. 33:108, no street, square, park or other public way, ground, or open space, or public building or structure, or public utility, whether publicly or privately owned, shall be constructed or authorized in the parish or municipality, as the case may be, or in such planned section or district until the location, character, and extent thereof has been submitted to and approved by the commission. In case of disapproval, the commission shall communicate its reasons to the local legislative body which shall have the power to overrule such disapproval by a recorded vote of not less than two-thirds of its entire membership. However, if the public way, ground, space, building, structure, or utility is one the authorization or financing of which does not, under the law or charter provisions governing same, fall within the province of the local legislative body, then the submission to a planning commission shall be by the board, commission, or body having such jurisdiction, and a planning commission's disapproval may be overruled by such board, commission, or body by a vote of not less than two-thirds of its membership. The failure of a commission to act within sixty days from and after the date of official submission to a commission shall be deemed approval.

B. Whenever a parish or municipal planning commission has adopted a master plan, the governing authority of such parish or municipality shall consider such adopted master plan before adopting, approving, or promulgating any local laws, ordinances, or regulations which are inconsistent with the adopted elements of the master plan.