A. Northwest Quadrant Overlay District:
1. Purpose: The purpose of the Northwest Quadrant Overlay District is to protect sensitive lands and wildlife habitat; allow for the continuation of agricultural uses; and allow for the development of lands in appropriate areas that contribute to the future economic growth of the city and will not negatively impact sensitive lands, habitats, and waterways in the area north of I-80 and west of the Salt Lake International Airport. Sites within this area may be subject to difficult environmental and site conditions. The overlay defines three subareas: the Development Area, the Eco-Industrial Buffer Area, and the Natural Area.
2. Public Improvements and Dedications: The undeveloped land in the Northwest Quadrant requires public improvements to ensure the long term development potential and success of the area. All development subject to a site development or building permit, shall be required to provide public improvements required by city departments as outlined in their master plans.
3. State and Federal Permits Required: A site development and/or building permit shall not be granted unless the applicant has first obtained any necessary State and/or Federal wetlands and/or stream alteration permits.
4. Precedence: For areas where the LC Lowland Conservancy Overlay District is mapped within the Northwest Quadrant Development Area and/or the Northwest Quadrant Eco-Industrial Buffer Area, the LC Lowland Conservancy Overlay District shall take precedence.
B. Northwest Quadrant Development Area: The purpose of this area of the Northwest Quadrant Overlay District is to allow for new development to occur in a way that allows for the growth of light industrial uses in the city while minimizing impacts to wildlife and the surrounding sensitive Great Salt Lake shore lands. This area is identified on the zoning map.
1. General Requirements:
a. Minimum Yard Requirements:
(1) Front Yard: 20'.
(2) Corner Side Yard: 20'.
(3) Interior Side Yard: None required.
(4) Rear Yard: None required.
b. Lighting: All lighting on the property, including lighting on the buildings, parking areas, and for signs shall be shielded to direct light down and away from the edges of the property to eliminate glare or light into adjacent properties and have cutoffs to prevent upward lighting. Uplighting and event searchlights are prohibited.
c. Roof Color: Light reflective roofing material with a minimum solar reflective index (SRI) of 82 shall be used for all roofs.
2. Landscaping Requirements: The purpose of the special landscaping for the Northwest Quadrant Development Area is to provide appropriate native landscaping that can survive in the unique conditions of the area, prevent noxious weeds, and to provide landscaping that will not negatively impact the adjacent sensitive lands and birds areas.
a. All landscaping shall consist only of native plants as identified in the "Salt Lake City Northwest Quadrant Plant List" on file with the city’s planning division.
b. Any areas disturbed by construction activity that will be left undeveloped shall be landscaped with plantings at an appropriate density to achieve complete cover within two years.
c. Noxious weed species as identified by the Utah Department of Agriculture and Food (or its successor) in the State of Utah Noxious Weed List (or its successor) shall be removed from landscaped areas and areas disturbed by construction activity. Noxious weeds shall be controlled for a period of two years and methods of control shall be identified on the landscape plan.
d. Required trees, including street trees, shall be chosen from the “Northwest Quadrant Plant List”. Noxious trees, as identified by the Utah Department of Agriculture and Food (or its successor) in the State of Utah Noxious Weed List (or its successor) are prohibited.
e. Any shrub required by Chapter 21A.48 of this title shall be selected from the “Salt Lake City Northwest Quadrant Plant List” have a mature height of at least three feet (3').
f. All other requirements in Chapter 21A.48 of this title apply. This section shall take precedence in the case of a conflict with Chapter 21A.48 of this title.
C. Northwest Quadrant Eco-Industrial Buffer Area: The purpose of this area of the Northwest Quadrant Overlay District is to provide an adequate buffer between the Natural Area, the adjacent Inland Sea Shore and the development of light industrial uses. Requirements in this area are meant to provide an area of transition from the natural environment to the built environment that will limit impacts to wildlife and sensitive areas. This area is identified on the zoning map.
1. In addition to the requirements listed in Subsection B of this section, properties located within the Northwest Quadrant Eco-Industrial Buffer Area are subject to the following requirements:
a. Glass Requirements: For buildings with more than 10% glass on any building elevation, a minimum of 90% of all glass shall be treated with applied films, coatings, tints, exterior screens, netting, fritting, frosted glass or other means to reduce the number of birds that may collide with the glazing. Any treatment must create a grid pattern that is equal to or smaller than two inches wide by four inches tall.
b. Fencing: When abutting the Northwest Quadrant Natural Area or the western City boundary, a see through fence that is at least fifty percent (50%) open with a minimum height of six feet (6') shall be erected along the property line to protect the Natural Area from development impacts and trespass.
D. Northwest Quadrant Natural Area: The purpose of this area of the Northwest Quadrant Overlay District is to protect sensitive lands and wildlife near the Great Salt Lake shorelands, to allow for the continuation of existing uses, and to limit new uses and new development in this area. This area is identified on the zoning map.
1. Permitted Uses and Improvements: Within the Natural Area, permitted developments and improvements to land are limited to the following:
Accessory use (associated with an allowed principal use).
Agricultural use.
Living quarters for caretaker or security guard.
Maintenance to existing infrastructure.
Natural open space.
Necessary infrastructure to support an allowed use.
Utility, building or structure (public).
Utility, transmission wire, line, pipe or pole (public).
Wildlife and game preserves.
2. Conditional Uses and Standards:
a. Uses and Improvements: The following uses and improvements are subject to conditional use standards contained in Chapter 21A.54 of this title:
Hunting club, (when allowed by the underlying zoning).
Underground utility transmission infrastructure (private), subject to the following:
(1) An appropriate plan for mitigation of any construction activities shall be prepared, and
(2) Absent any State or Federal regulations, a plan for creating no adverse impact should the line be abandoned shall be prepared.
Utility, building or structure (private).
Utility, transmission wire, line, pipe or pole (private).
b. Conditional Use Standards: In addition to demonstrating conformance with the conditional use standards contained in Chapter 21A.54 of this title, each applicant for a conditional use within the Northwest Quadrant Natural Area must demonstrate conformance with the following standards:
(1) The development will not detrimentally affect or destroy natural features such as ponds, streams, wetlands, and forested areas, nor impair their natural functions, but will preserve and incorporate such features into the development's site;
(2) The location of natural features and the site's topography have been considered in the designing and siting of all physical improvements;
(3) Adequate assurances have been received that the clearing of the site topsoil, trees, and other natural features will not occur before the commencement of building operations; only those areas approved for the placement of physical improvements may be cleared;
(4) The development will not reduce the natural retention storage capacity of any watercourse, nor increase the magnitude and volume of flooding at other locations; and that in addition, the development will not increase stream velocities;
(5) The soil and subsoil conditions are suitable for excavation and site preparation, and the drainage is designed to prevent erosion and environmentally deleterious surface runoff;
(6) The proposed development activity will not endanger health and safety, including danger from the obstruction or diversion of flood flow;
(7) The proposed development activity will not destroy valuable habitat for aquatic or other flora and fauna, adversely affect water quality or groundwater resources, increase stormwater runoff velocity so that water levels from flooding increased, or adversely impact any other natural stream, floodplain, or wetland functions, and is otherwise consistent with the intent of this title;
(8) The proposed water supply and sanitation systems are adequate to prevent disease, contamination and unsanitary conditions; and
(9) The availability of alternative locations not subject to flooding for the proposed use.
3. Landscaping: Landscaping is not required for uses and improvements within the Natural Area, except:
a. Any areas disturbed by construction activity that will be left undeveloped shall be revegetated with native plants as listed in the "Salt Lake City Northwest Quadrant Plant List".
b. Noxious weed species as identified by the Utah Department of Agriculture and Food (or its successor) in the State of Utah Noxious Weed List (or its successor) shall be removed from landscaped areas and areas disturbed by construction activity. Noxious weeds shall be controlled for a period of two years and methods of control shall be identified on the landscape plan. (Ord. 12-24, 2024: Ord. 10-24, 2024: Ord. 59-17, 2017)