Search within This 18.4.2.020 Applicability This section is included in your selections. A. Chapter 18.4.2 applies to residential, commercial, and manufacturing developments that are subject to chapter 18.5.2 Site Design Review. Note that some standards apply differently to developments located within Detailed Design Review, Downtown Design Review, and Historic Design Review overlays. B. Exceptions and Variances. Requests to depart from the requirements of this chapter are subject to subject to 18.5.2.050.E Exception to the Site Development and Design Standards.