A. Residential Development: Residential style and design should enhance the SBW overlay zone by blending into the overall appearance of the byway corridor environment and should be unique and different in its design and layout as compared to standard elements and materials used in current home construction schemes.
1. Residential developers are encouraged to establish subdivision designs that include the design principles of the SBW overlay zone.
2. Residential developers creating subdivisions of five (5) or more lots should develop design standards for the subdivision incorporating the following elements from the SBW overlay zone design standards:
a. Subdivision layout and architectural designs that consider the visual orientation to Legacy Parkway, the local street accesses, pedestrian pathways and open spaces within the byway corridor to create an attractive appearance when viewed from these areas.
b. A minimization of the apparent mass of residential buildings through the use of a variety of vertical and horizontal planes, roof pitches, rooflines, windows, reveals and alcoves.
c. When building facades face Legacy Parkway, a local street or any pedestrian pathway within the byway corridor, the design should incorporate porches, entryways, window boxes and other such features to accent the building. Additional elements such as balconies and other such overhangs should also be incorporated to encourage a human scale to the building and minimize blank walls and facades.
d. Residential buildings are encouraged to have natural or natural appearing materials and should minimize the use of unnatural appearing materials such as metal, glass, vinyl and plastics.
e. Colors and finishes should complement the byway corridor environment. Stains, flat paints and matte finishes should be incorporated, while reflective or shiny paints and finishes shall be avoided.
f. Grading and drainage for the subdivision shall minimize the amount of grading of the land to avoid excessive erosion, visual scarring and other similar impacts and should utilize natural drainageways and/or patterns.
g. Drainage systems should direct stormwater and other runoff into swales, retention areas and other systems to maximize infiltration and improve water quality before such water is introduced into other water sources.
h. Landscaped and open space areas should be consolidated and oriented toward Legacy Parkway and pedestrian pathways located within the byway corridor.
i. Common landscaping and open space areas should incorporate a mixture of ornamental and native grasses or local climate planting. Plantings should include the predominant use of ornamental grasses, shrubs and wildflowers that complement the byway corridor environment.
j. Trees and evergreens in common open space areas should be used sparingly to promote the grassy character of the shoreland area. Trees may be used in common open space for areas needing shading, screening and privacy.
k. Nonlinear transition areas between the manicured and natural areas should be created to soften the appearance of any transition line. An appropriate barrier element, such as a colored concrete mow strip, shall be used to prevent undesirable encroachment or overgrowth to be intermingled between the natural and manicured areas.
l. Fencing and walls should be used sparingly, especially in landscape and open space areas, and should use materials and styles to complement the architectural style of the buildings and the byway corridor environment. White vinyl and other bright reflective fence and wall materials should not be used in the SBW overlay zone.
B. Viewshed Protection: Buildings and similar structures should be designed and placed where their visual impact is minimized to the greatest extent possible, as viewed from the Legacy Parkway and other public spaces within the byway corridor area.
1. Buildings should be set back a minimum of two hundred feet (200') from the Legacy Parkway right of way or to the maximum extent possible if less than two hundred feet (200') of space is available.
2. All main buildings and associated site landscaping and open space areas within two hundred fifty feet (250') of Legacy Parkway should be visually oriented toward the parkway.
3. View corridors should be created to allow visual connections easterly toward the Wasatch Mountains and westerly toward the shorelands of the Great Salt Lake. Buildings should not be massed in a manner that creates a complete visual fortress, specifically as viewed from the Legacy Parkway or any other major arterial road within the byway corridor area.
4. All service areas and back lot uses, such as loading docks, dumpsters, storage areas, etc., should be located behind the main buildings or properly screened or visually buffered from view from the Legacy Parkway, a local street, or any pedestrian pathway within the byway corridor or, where deemed applicable, the Legacy Preserve.
5. Where allowed by this title, areas for storage, equipment parking or other such activities, should be screened and segmented into smaller spatial areas and may be connected together by access lanes, green space and other buildings.
C. Open Space And Critical Lands: Open spaces are to be provided to protect and buffer critical natural areas and to enhance or create desirable view corridors eastwardly toward the Wasatch Mountains and westerly toward the Legacy Preserve and the shorelands of the Great Salt Lake.
1. Development proposals should identify critical lands, such as wetland areas, stream corridors, canals and other such sensitive lands. The design and development layout should protect and/or incorporate these features as buffers, open spaces, trail and passive recreation amenities, drainage corridors and transition areas.
2. Create or locate open space areas adjacent to or oriented toward the Legacy Parkway, the Legacy Preserve or toward natural areas such as wetlands.
3. Incorporate open space areas into the development pattern that creates visual and/or physical connections to the Legacy Parkway and the Legacy Preserve.
4. Develop trailheads and trail connections as part of the open space development pattern that provides access to the public trails systems in the area.
5. Use critical land areas to manage drainage and stormwater retention needs of development.
D. Public Right Of Way, Roadway And Parking Lot Surfacing Design: Properly designed roadway and parking lot placement can create opportunities for decentralizing stormwater management for the SBW overlay district and allow effective infiltration water runoff in a more natural manner. Basic strategies include low impact roadway layouts, narrower road surface widths, shared accesses and driveways and open section roadways. Additionally, streetscape elements are important contributors to creating a sense of place that can add to the experience of working, living and playing within the byway corridor.
1. Roadways and parking lot areas should be placed to avoid crossing slopes where significant cut and fill will be required. Roadways and parking lots should run parallel to the natural contours of the site and perpendicular to any significant slope areas. Design of the roadway network and parking lot areas may involve some give and take in achieving layouts compatible with the existing topography.
2. Shared driveway use should be incorporated into the site and building layout, including consideration of development on adjacent sites. Driveways should be limited to twenty five feet (25') (residential) and thirty five feet (35') (commercial, industrial and institutional) in width. All driveway surfaces should be sloped or crowned in a manner to evenly drain (not erode) onto adjacent vegetative areas (not onto public streets) where the runoff will infiltrate or travel via sheet flow.
3. The primary roadway and parking lot design style should be open section or "country drainage" flanked by filter strips and swales instead of curb and gutter. If curbs are deemed necessary to stabilize the roadway or lot edges, the design should primarily consist of invisible curbs (same level as the surface); other design strategies may include periodic curb cuts, or perforated curbs.
4. Clear zone and shoulder grading should properly accommodate the use of filter strips and swales to direct water onto adjacent vegetative areas (not onto public streets) where the runoff will infiltrate or travel via sheet flow.
5. Public street design and development within the byway corridor should reflect the proper design theme motif and be unified across the corridor. The streetscape design should include the use of, but not limited to, the following types of elements:
a. Interpretive signs and kiosks;
b. Street trees with decorative planting beds or decorative grating;
c. Decorative light fixtures and street signs;
d. Benches or places to rest;
e. Bike lanes and bike racks;
f. Decorative waste cans and drinking fountains;
g. Trailhead and spur connections to the area's trail systems. (Ord. 2012-35, 12-4-2012)