Indiana Code Title 36. Local Government § 36-7-4-201

Sec. 201. (a) For purposes of IC 36-1-3-6, a unit wanting to exercise planning and zoning powers in Indiana, including the issuance of permits under IC 8-1-32.3 (except as otherwise provided in IC 8-1-32.3), must do so in the manner provided by this chapter.

(b) The purpose of this chapter is to encourage units to improve the health, safety, convenience, and welfare of their citizens and to plan for the future development of their communities to the end:

(c) Furthermore, municipalities and counties may cooperatively establish single and unified planning and zoning entities to carry out the purpose of this chapter on a countywide basis.

(d) METRO. Expanding urbanization in each county having a consolidated city has created problems that have made the unification of planning and zoning functions a necessity to insure the health, safety, morals, economic development, and general welfare of the county. To accomplish this unification, a single planning and zoning authority is established for the county. However, in an excluded city (as described in IC 36-3-1-7):

have exclusive territorial jurisdiction within the boundaries of the excluded city. Unless expressly provided otherwise, any reference in this chapter to the legislative body with regard to an excluded city is a reference to the legislative body of the excluded city, and any reference in this chapter to the board of zoning appeals with regard to an excluded city is a reference to the board of zoning appeals of the excluded city, if the excluded city has a board of zoning appeals.