The regulations set forth in this chapter, or set forth elsewhere in this part when
referred to in this chapter, are the regulations for the SPI-18 Mechanicsville Neighborhood
Special Public Interest District. These regulations shall supplant existing districts
or portions of existing districts as shown on the attached map referenced in section 16-18R.003, except that all existing categories of historic protection designated pursuant to Chapter 20 of Part 16 shall continue in full force and effect and said existing historic protection
regulations shall be overlaid upon, and shall be imposed in addition to, the regulations
set forth in this chapter. Whenever the following regulations are at variance with
said existing historic protection regulations, the historic protection regulations
shall apply. Whenever the following regulations conflict with provisions of Part 16
other than historic protection regulations, the more stringent regulation shall apply.
The regulations set forth in sections 16-18R.001 through and including section 16-18R.025 shall apply to all properties located within the SPI-18 Mechanicsville Neighborhood
Special Public Interest District, including all subareas within the district, unless
otherwise indicated by subarea.