Gwinnett County |
Code of Ordinances |
Appendix A. UNIFIED DEVELOPMENT ORDINANCE |
Appendix Section 1.0 - Architectural Design Standards |
§ 6.1.0. Commercial and Non-Residential Buildings
(Commercial and Non-Residential buildings include but are not limited to office buildings, retail buildings, shopping centers, warehouses, places of worship, medical buildings, and industrial buildings.)
6.1.1
Exterior Wall Design
A.
The front, sides, and rear facades of buildings shall have glass, brick, and/or stone finish. Stucco/EIFS, textured concrete masonry, and/or fiber cement board siding finish shall be allowed, not to exceed 30 percent of any façade elevation. Architectural precast concrete and architectural non-ribbed metal panels with concealed fasteners may be allowed subject to Director's review.
B.
The front, sides, and rear facades shall incorporate changes in building material, texture, and color. Building mass shall incorporate plan offsets (minimum offset shall be 2 feet) every 50 linear feet. Exterior walls shall incorporate features such as storefront/windows, colonnade openings, false windows, decorative tower features, and/or recessed panels reminiscent of windows and doors, every 50 linear feet.
C.
Buildings in zoning districts that allow industrial classified buildings with industrial factory occupancies may have precast concrete or tilt-up concrete panels with textured coating finish. Concrete panels shall have a design pattern of architectural reveals and/or insets. The building facades shall incorporate a minimum of two colors. Building facades facing streets shall incorporate features such as storefront, building mass offsets, colonnade openings, false windows, and/or recessed panels reminiscent of windows and doors, every 50 linear feet.
D.
Multi-tenant retail (mercantile) buildings and shopping centers shall incorporate distinct architectural entry identity for individual tenant suites exceeding 10,000 square feet of gross floor area, such as towers, portico, gables, or offset façade with change of materials.
E.
Portable buildings shall be prohibited.
F.
Exposed neon or other types of color accent lighting shall be prohibited. Neon light graphic features or signage located on interior walls or bulkheads shall be located a minimum of 8 feet behind the exterior glass façade.
G.
Ornamental wall-mounted sconce lights located on the building elevation adjacent to an entrance must be of non-clear translucent panels with low wattage (not to exceed 30 watts) light source and the light/wall location must be at least 30 feet from the property line.
H.
Wall mounted electrical, mechanical, utility meters, and other utility equipment shall be screened. Screening height shall be equal to the height of the equipment. Equipment screens shall have a brick/stone finish, which is consistent with the finish materials of the building façade, or vegetative landscape screening shall be provided immediately in front of the equipment units.
I.
Ground mounted electrical, mechanical, and like utility equipment shall be screened. Screening height shall be equal to the height of the equipment. Equipment screens shall have a brick/stone finish, which is consistent with the finish materials of the building façade, or provide vegetative landscape screening immediately around the units.
J.
All parapets on buildings three stories or less shall incorporate cornice features which project horizontally a minimum of 1 foot.
K.
Under "glow" lighting of fabric, vinyl, or translucent material awnings shall be prohibited.
L.
Buildings shall incorporate landscape areas immediately in front of the building. Landscape areas shall have live ornamental shrubs and/or trees. Landscape areas shall be located not more than ten (10) feet from the building and shall be provided at intervals not to exceed fifty (50) linear feet. Building facades without windows or storefront shall incorporate landscape areas with vertical height plants. Buildings located on corner lots or double frontage lots, facing either public streets or private driveways shall be considered as having multiple fronts. Landscape areas shall be permanent in-ground installations. Moveable planters do not qualify as permanent installations. Sculptured topiary shrubs shall not depict product shapes or other graphic shapes.
(Ord. No. UDOA2014-00001(GCID No. 2014-0548), 7-22-14)
6.1.2
Roof and Parapet Design
A.
Flat roof buildings shall incorporate articulated parapets or facade projections such as porticoes or towers every 50 linear feet on all sides of the building.
B.
Pitched roof buildings shall incorporate articulated features every 50 linear feet on the front elevation. Articulated features shall include roof eave height changes, towers, spires, cupolas, dormers, and/or gables. Roofing material shall be limited to standing seam metal, natural slate or stone shingles, traditional tile, or architectural dimensional shingles.
C.
Fully pitched roof buildings may have a flat roof well located in the central area of the roof, not to exceed 50 percent of the roof area, with a pitched roof similar to a mansard design on all sides of the building. The height of the partial (mansard design) pitched roof profile must be equal in ridge height to the design height of a fully pitched 4 in 12 roof for that building.
D.
All roof mounted equipment, such as mechanical units, vent hoods, communication devices, and/or other building system(s) equipment, shall be screened from view on all sides of the building. Roof screening height shall be equal to the height of the equipment. Roof screening design shall include parapets, secondary roof screening systems, and/or individual equipment screens. Buildings with non-parapet roof edges exceeding 50 linear feet shall incorporate secondary roof screening systems that enclose groups of equipment units rather than a "box" around individual units. Secondary screening systems and/or individual equipment screens shall be a material consistent with the finish materials of building facades. Alternative screen materials such as decorative ABS panels with a textured stucco pattern may be submitted for consideration.
(Ord. No. UDOA2018-00001(GCID2018-0776) , Exh. A, 7-24-2018)