Unified Development Ordinance, 31st Supplement, May 2024

Article 12.2. Defined Terms | CHAPTER 12. DEFINITIONS

Modified Natural Stream An on-site channelization or relocation of a stream channel and subsequent relocation of the intermittent or perennial flow as evidenced by topographic alterations in the immediate watershed. A modified natural stream must have the typical biological, hydrological and physical characteristics commonly associated with the continuous conveyance of water. Monastery, Convent A place of residence for bona fide members of a religious order where members are housed in one or more buildings and carry on religious, medical, educational or charitable work in the community. n Natural Protective Yard A landscaped yard area that contains no buildings, vehicular surface area, loading, storage or display service areas, in which no tree disturbing activity or grading shall take place unless in accordance with an approved tree removal permit. No tree removal permit shall be issued if the cumulative grading and tree removal exceeds 30% of any natural protective yard. Natural Resource Buffer Yard Buffer areas that limit land disturbing activities adjacent to fragile environmental areas, which include, but are not limited to, watercourse buffers. New Construction Structures for which the “start of construction” commenced on or after the effective date of this UDO and includes any subsequent improvements to such structures. Non-Encroachment Area The channel of a river or other watercourse, including the area above a bridge or culvert when application, and the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the water surface elevation more than one (1) foot as designated in the Flood Insurance Study report. o

Off-Premises Sign Any sign or structure, pictorial or otherwise, regardless of size or shape that directs attention to a business, commodity, attraction, profession, service or entertainment conducted, sold, offered, manufactured, existing or provided at a location other than the premises where the sign is located or to which it is affixed. Sometimes called non-point-of-sale sign. Off-Site Stormwater Control Facilities The overall design, construction and maintenance of one or more devices and measures and associated drainage easements, conduits, inlets, channels, pipes and ditches, level spreaders, filters, buffers, bioretention areas, sand filters, detention basins, wetlands and ponds necessary to collect, convey, store and control stormwater runoff and pollutants for more than 1 lot. Stormwater control facilities serving contiguous properties or a subdivision or a portion of a subdivision greater than 1 lot are examples of off-site stormwater control facilities. One Hundred-Year Storm The stormwater runoff resulting from a rainfall of an intensity expected to be equaled or exceeded, on the average, once in 100 years and of a duration which will produce the maximum peak rate of runoff, for the watershed of interest under average antecedent wetness conditions. On-Premise Sign Any sign or structure, pictorial or otherwise, regardless of size or shape that directs attention to a business, profession, commodity, attraction, service or entertainment conducted, offered, sold, manufactured, existing or provided at a location on the premises where the sign is located or to which it is affixed. A sign that identifies both an on-premises subsidiary and an off-premises parent company is an off-premises sign. On-Site Stormwater Control Facilities The overall design, construction and maintenance of one or more devices and measures and associated drainage easement, conduits, inlets, channels pipes, ditches, level spreaders, filters, buffers, bioretention areas, sand, filters, detention basins, wetlands and ponds, necessary to collect, convey, store and control stormwater runoff and pollutants within and for a single lot. Open Space, Active Improvements to accommodate recreation or activity, such as play fields and play

12 – 15 Published May 2024

Part 10: Unified Development Ordinance City of Raleigh, North Carolina

Supp. No. 31