1. Nonconforming Buildings: In all residential, business, industrial and institutional districts, buildings which are nonconforming by type (e.g., pole or engineered steel) existing upon the effective date hereof shall be allowed to expand using materials similar to those of the principal structure; provided, that:
a. The expansion shall not exceed twenty five percent (25%) of the size of the existing building.
b. A maximum of one building expansion shall be allowed after January 1, 2008.
c. Such buildings shall be subject to all other requirements of subsection
11-3-9C of this title pertaining to the expansion of nonconforming buildings or structures.
d. Other lot and building requirements of this title and the Building Code are satisfactorily met.
2. Architectural And Aesthetic Compatibility: Buildings in all zoning districts shall maintain a high standard of architectural and aesthetic compatibility with surrounding properties to ensure that they will not adversely impact the community's public health, safety and general welfare.
3. Steel Or Aluminum Buildings: Except in association with farming activities, no galvanized, corrugated, unfinished, or sheet steel or aluminum buildings (walls or roofs) shall be permitted in any zoning district.
4. Exterior Building Materials:
a. For the purpose of this section, materials shall be divided into classes as follows:
(b) Stone (natural or artificial).
(c) Integral colored split face (rock face) concrete block.
(a) Architectural precast panel.
(b) Stucco (natural or artificial)/EIFS (exterior insulated finish system).
(c) Curtain wall panels of steel, aluminum and fiberglass, provided such panels are factory fabricated and finished with a durable, nonfade surface and secured with corrosion resistant fasteners.
(a) Steel, aluminum or fiber cement siding.
(b) Concrete composite board.
(c) Standard concrete precast panel.
(b) Wood (natural or composite) provided the surfaces are finished for exterior use, or wood of proven exterior durability is used, such as cedar, redwood, or cypress.
b. Residential Uses: Except as otherwise specified in subsection B of this Section, the primary exterior building facade finishes for residential uses shall consist of Class I, Class II, Class III, and/or Class IV materials.
c. Commercial And Institutional Uses: Except as otherwise specified in subsection B of this Section, the primary exterior building facade finishes for commercial and institutional uses shall consist of Class I, Class II, and/or Class III materials.
d. Industrial Uses: Except as otherwise specified in subsection B of this Section, the primary exterior building facade finishes for industrial uses shall consist of Class I, Class II, and/or Class III materials.
e. Building Foundations: Building foundations that extend less than two feet (2') above grade need not comply with the exterior building material requirements of this subsection A4 of this Section.
1. R-3 Medium Density Residential And R-4 High Density Residential Districts:
a. Unit Width: The minimum width of a dwelling unit within the R-3 District shall be twenty five feet (25').
b. Decks Or Porches: Provision shall be made for possible decks, porches or additions as part of the initial dwelling unit building plans. The unit lot shall be configured and sized to include decks or porches.
c. Minimum Overhang: In case of gable roof, a minimum eighteen inch (18") roof overhang or soffit shall be required for all residential structures.
d. Exterior Building Finish:
(1) Townhomes: The exterior of townhome dwelling units shall include a variation in building materials which are to be distributed throughout the building facades and coordinated into the architectural design of the structure facing the public right-of-way to create an architecturally balanced appearance. A minimum of twenty five percent (25%) of the area of front building facades shall be composed of Class I materials.
(2) Multi Family: A minimum of twenty five percent (25%) of the area of all building facades shall be composed of Class I materials. Class IV materials are not an allowable primary exterior building facade finish for High Density Residential Districts.
e. Utilities And Screening: Exterior utility meters and/or fixtures shall be located in interior side or rear yards when possible and shall be screened from view of adjacent properties and the public right-of-way.
f. Drives: Private drives shall include plans and areas for snow storage.
g. Open Space and Recreational Uses: In addition to the park dedication requirements stipulated by the City subdivision ordinance, a minimum of ten percent (10%) of the gross development project area shall be in usable open space and recreational use for the project residents. Such areas shall be specifically designed for both the active and passive use by the project residents and may include swimming pools, trails, nature areas, tot lots, exercise equipment, saunas, etc. Said areas and facilities shall be private, except in those cases where the City agrees to assume responsibility for all or a portion of the recreational space. In those cases where private ownership is maintained, the land and facilities shall be subject to the requirements set forth in a development agreement.
2. R-5 Downtown Residential and B-2 Downtown Business Districts:
a. Window And Door Openings:
(1) In the R-5 district, window and door openings shall comprise not less than thirty percent (30%) of the area of the ground floor of street facing facades.
(2) In the B-2 district, window and door openings shall comprise not less than forty percent (40%) of the area of the ground floor of street facing facades and not less than thirty percent (30%) of the area above the ground floor of street facing facades.
(3) Windows shall be designed with openings that recess or extend forward in order to create a strong rhythm of light and shadow in keeping with traditional architecture.
(4) Mirrored glass or glass block shall not be used on street facing facades. Glass on windows and doors shall be clear or slightly tinted, allowing views into and out of the interior.
(5) Window shape, size and patterns shall emphasize the intended organization of the facade and the definition of the building.
b. Architectural Detailing: Corners, cornices, windows, and doorways shall include additional architectural detailing beyond the basic building wall materials or pattern of traditional style buildings. All facades facing public areas shall provide architectural detailing.
c. Building Entrances: Primary entrances on all buildings shall face the primary abutting public street or walkway, or linked to that street by a clearly defined and visible walkway or courtyard. Additional secondary entrances may be oriented to a secondary street or parking area.
d. Intersections: At intersections, buildings shall be placed such that building facades are at or near the sidewalk on both streets.
(1) The primary facade(s) of buildings forty feet (40') or more in width shall be articulated into smaller increments through the following techniques (or something similar):
(a) Stepping back or extending forward a portion of the facade.
(b) Use of different textures or contrasting, but compatible, materials.
(c) Division into storefronts with separate display windows and entrances.
(d) Arcades, awnings, window bays, balconies or similar ornamental features.
(e) Variation in rooflines to reinforce the articulation of the primary facade.
(2) Buildings shall have a well defined base, middle and top. The base or ground floor shall be visually distinct from the upper stories through a change in building materials, window shape or size, an intermediate cornice line, an awning, arcade or similar technique.
f. Exterior Building Materials:
(1) In the R-5 district, a minimum of fifty percent (50%) of street facing facades and forty percent (40%) of nonstreet facing facades shall be composed of Class I materials. The balance of the facades may be made up of Class II and/or Class III materials.
(2) In the B-2 district, a minimum of seventy percent (70%) of street facing facades and fifty percent (50%) of nonstreet facing facades shall be composed of Class I materials. The balance of the facades shall be made up of Class II materials and not more than twenty percent (20%) of Class III materials.
(3) Materials of similar quality shall be used on front, side, and rear facades, and detailing of all facades should be compatible.
g. Building Color: Building colors shall accent, blend with, or complement surroundings. Principal building colors shall consist of subtle, neutral or muted colors with low reflectance (e.g., browns, grays, tans, dark or muted greens, blues and reds). No more than two (2) principal colors may be used on a facade or individual storefront. Bright or primary colors shall be used only as accents, occupying a maximum of twenty percent (20%) of building facades.
(1) Major Collector or Arterial Street Frontages: Principal structures along major street frontages such as County Road 2 shall be required to locate their parking area at the rear of the building. Parking lots along major street frontages are prohibited within this district.
(2) Local Street Frontages: Surface parking lots shall be located along the side or rear of the principal structure within this district.
i. Loading Areas: Loading areas, service entrances, and mechanical services shall be screened from view of public streets.
3. B-4 Highway Business and B-6 Business Campus Districts:
(1) Facades greater than one hundred feet (100') in length, measured horizontally, shall incorporate visual relief, defined as the incorporation of design features such as large doors, windows, horizontal and vertical patterns, contrasting materials, and/or varying wall depths.
(2) Ground floor facades that face public streets shall have arcades, display windows, entry areas, awnings, other architectural features, or pedestrian attractive features such as benches, niches, or plantings along no less than forty percent (40%) of their horizontal length.
(3) Building facades facing public rights-of-way, residential zoning districts, or public areas, shall include a repeating pattern of at least two (2) of the elements listed below or of other architectural features. At least one of these elements shall repeat horizontally. All elements shall repeat at intervals of no more than thirty feet (30').
(c) Material module change.
(d) Expression of architectural or structural bay through a change in plane no less than twelve inches (12") in width, such as an offset or reveal.
(4) Facade colors shall be low reflectance, subtle, neutral or earth tone colors. The use of high intensity colors or fluorescent colors is prohibited.
b. Exterior Building Materials: A minimum of fifty percent (50%) of street facing facades and forty percent (40%) of nonstreet facing facades shall be composed of Class I materials or architectural precast panels. The balance of the facades may be made up of Class II and/or Class III materials.
c. Shopping Carts: Any retail business that uses shopping carts outside of the building shall have an approved cart management plan. The management plan shall specify the retail operation's cart management program to prevent accumulation of carts in the parking lot. Shopping carts shall not be stored outside overnight.
d. Loading Areas and Screening:
(1) Areas for truck parking, loading docks/doors, or other such uses shall not be visible from abutting streets or adjacent residential zoning districts.
(2) No part of a loading dock shall be located within one hundred feet (100') of a residential district boundary.
(3) Loading docks, truck parking, utility meters, HVAC equipment, trash collection, trash compaction, and other service functions shall be incorporated into the overall design of the building and the landscaping so that the visual and acoustic impacts of these functions are fully contained and out of view from adjacent properties, public streets, pedestrianways and public sidewalks, and no attention is attracted to the functions by the use of screening materials that are different from or inferior to the principal materials of the building and landscape.
4. I-1 Limited Industrial and I-2 General Industrial Districts:
a. Exterior Building Materials: A minimum of sixty percent (60%) of all building facades shall be composed of Class I or Class II materials. The balance of the facades may be made up of Class III materials.
5. B-7 Mixed Use Districts:
a. Exterior Building Finish: A minimum of twenty five percent (25%) of the area of all building facades shall be composed of Class I materials. Class IV materials are not an allowable primary exterior building material.
b. Utilities And Screening: Exterior utility meters and/or fixtures shall be located in interior side or rear yards when possible and shall be screened from view of adjacent properties and the public right-of-way.
c. Drives: Private drives shall include plans and areas for snow storage.
C. Exceptions: Exceptions to the provisions of this section may be granted through issuance of a conditional use permit by the city council; provided, that:
1. The proposed building maintains the quality intended by this title.
2. The proposed building is compatible and in harmony with other structures within the district.
3. The provisions of section
11-3-2 of this title are considered and satisfied. (Ord. 20, 3-27-2008; amd. Ord. 244, 3-10-2022; Ord. 265, 3-9-2023; Ord. 295, 5-23-2024)