21A.34.010: GENERAL PROVISIONS:
   A.   Statement Of Intent: An Overlay District is intended to provide supplemental regulations or standards pertaining to specific geographic features or land uses, wherever these are located, in addition to "base" or underlying zoning district regulations applicable within a designated area. Whenever there is a conflict between the regulations of a base zoning district and those of an Overlay District, the Overlay District regulations shall control.
   B.   Site Plan Review: Permitted uses and conditional uses in the Overlay Districts have the potential for adverse impacts if located and laid out on lots without careful planning. Such impacts may interfere with the use and enjoyment of adjacent property and uses. Site plan review is a process designed to address such adverse impacts and minimize them where possible. Site plan review of development proposals is required in the T Transitional Overlay District, the LC Lowland Conservancy Overlay District, and the LO Landfill Overlay District. All uses in these districts shall be subject to the site plan review regulations contained in chapter 21A.58 of this title. (Ord. 26-95 § 2(17-0), 1995)