City of St. Charles, MO
St. Charles County
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Table of Contents
Table of Contents
[Ord. No. 10-244 §1, 11-18-2010]
A. 
Purpose. The purpose of these architectural and design standards is to ensure the highest quality and most aesthetically pleasing development in all areas of the City. Redevelopment and new development in the City reflects on the image of St. Charles and it is crucial that new structures and rehabilitation or additions to old structures adhere to a higher standard to reflect positively on the City's progressive attitude toward its future. These standards are not intended to restrict imagination or variety, but rather to assist in focusing on a design which results in an architectural style that creates a signature appearance that is distinctly St. Charles.
B. 
Architectural And Design Standards. These architectural and design standards shall apply to all new structures (as structure is defined in the building code), reconstruction of structures, rehabilitation of structures and expansion of structures in all zoning districts, except: (1) single-family and two-family residential structures; (2) all structures legally existing or for which building permits have been legally approved on or prior to December 1, 2003; and (3) structures which have previously been approved pursuant to Section 400.980(I) where said approval authorized the use of specific building materials. Architectural and design standards shall be defined as follows:
1. 
All structures shall have exterior finished walls composed of one hundred percent (100%) masonry on all sides of the structure and shall be designed so as to match or complement existing buildings in the vicinity. "Masonry", as used here, shall be defined as exposed face brick or natural building stone which is used as a facing component which is applied over exterior wall back-up construction. Face brick shall be prismatic units in a variety of sizes, colors and shapes. Brick shall be manufactured from clay, shale or similar naturally occurring earthy substances and subject to firing in a kiln. Natural building stone shall include stone that is sawed, cut, split or otherwise finished or shaped having a minimum thickness of one (1) inch. Natural building stone shall include granite, limestone, marble, slate, soapstone, sandstone or other natural stones of similar characteristics and physical properties. Molded, cast or otherwise artificially aggregated units composed of fragments of natural stone (excluding concrete masonry units) may be used with the approval of the Planning and Zoning Commission or, if applicable, the HLPARB. Masonry shall not be painted. Clear sealers and non-pigmented stains may be used. All colors shall be approved by the Planning and Zoning Commission or, if applicable, the HLPARB. Other non-masonry exterior finish materials shall be considered as accent materials and shall be limited to a maximum area of twenty-five percent (25%) of all exterior wall surfaces excluding windows and doors.
"GPRS" Bonus:
All tiers. Projects may utilize up to seventy-five percent (75%) recycled building materials. Recycled materials to be utilized shall be approved by the Planning and Zoning Commission or, if applicable, the HLPARB.
2. 
Rooftop mechanical equipment shall be screened by increased parapet height or other means architecturally consistent and harmonious with the proposed structure so as to not be visible from a point six (6) feet above the elevation of the property line on which the structure is located and from a point four (4) feet above the elevation of any public right-of-way.
"GPRS" Bonus:
All tiers. Solar panels are excluded from the rooftop mechanical equipment screening requirement. Solar panel design and placement shall be approved by the Planning and Zoning Commission or, if applicable, HLPARB.
3. 
All exterior lighting shall be consistent with the architectural concept. Fixtures, standards and all exposed accessories shall be harmonious with the structure's design. All exterior lighting including wall pack lighting shall be shielded to direct light straight down, unless it is architectural accent lighting per the below standards. Any accent lighting which does not comply with the below standards may request a waiver from the Planning and Zoning Commission with written justification for the exemption provided by the applicant for evaluation:
[Ord. No. 20-107, 7-21-2020]
a. 
Lighting source shall either be attached to the primary structure or be located at the base of the primary structure. If located at the base of the structure, the lighting source shall be located within six (6) feet of the foundation;
b. 
Shall be projected upon the structure only;
c. 
Shall not shine, cast and/or project onto adjacent properties or right-of-way; and
d. 
Lighting shall not flash, change direction or produce any animation.
4. 
All exterior solid waste containers and container racks or stands shall be screened from public view by an enclosure which meets the following standards:
a. 
Multi-family residential buildings. All exterior solid waste containers and container racks or stands for a multiple-family dwelling shall be screened from public view by an enclosure which shall be a minimum of five (5) feet in height. Enclosures shall have a concrete floor, solid gates, and shall otherwise be constructed of masonry, wood or fencing with sight-proof treatment. In no case shall slatted, chainlink fencing be used for such purpose.
b. 
Commercial/institutional/industrial buildings. All refuse and waste removal storage areas shall be screened with minimum six (6) foot high solid screen walls of masonry construction to complement the primary structure. Enclosures shall have a concrete floor, gates shall be composed of metal or solid vinyl in a complementary color to the masonry and in no case shall slatted, chainlink fencing be used for such purpose. The Planning and Zoning Commission may consider alternative materials if the primary building on the property has a ground floor area less than ten thousand (10,000) square feet.
c. 
SMPD, HDD, FPD, LMPD and CPD. All exterior solid waste containers and container racks or stands shall be screened from public view by an enclosure which shall be a minimum of five (5) feet in height. Enclosures shall have a concrete floor, solid gates, and shall otherwise be constructed of masonry, weather-resistant wood or fencing with sight-proof treatment. In no case shall slatted, chainlink fencing be used for such purpose.
d. 
A fence permit is required for all trash enclosures.
5. 
Fencing used to screen areas from view of adjacent properties shall be a minimum of six (6) feet high and shall be composed of wood or solid vinyl as approved by the Planning and Zoning Commission or, if applicable, the HLPARB. In no instance, shall slatted, chainlink fence be used for such purpose.
6. 
All landscaping areas shall be provided with underground irrigation or shall be entirely planted with native drought-resistant plant species. Where native drought-resistant plantings are provided, a planting schedule shall be provided and shall be signed and sealed by a Missouri-registered landscape architect or certified arborist.
[Ord. No. 20-104, 7-21-2020]
7. 
The Planning and Zoning Commission or, if applicable, the HLPARB may consider the alternative materials to those listed in Subsection (B) if the applicant demonstrates that any of the following factors are present:
a. 
The proposed structure is greater than listed in the following table; or
[Ord. No. 19-013, 1-15-2019]
Building Code Use Group
Covered Structure Footprint Area In Square Feet
Height And/Or Stories
Assembly "A-1", "A-2", "A-3", "A-4"
11,500
50 feet and/or 2 stories
Business "B"
18,000
50 feet and/or 3 stories
Educational "E"
18,500
50 feet and/or 1 story
Factory Group "F"
14,000
50 feet and/or 2 stories
High Hazard Group "H"
7,500
50 feet and/or 1 story
Institutional "I-1"
10,500
50 feet and/or 3 stories
Institutional "I-2"
9,500
50 feet and/or 1 story
Institutional "I-3"
7,500
50 feet and/or 2 stories
Institutional "I-4"
18,500
50 feet and/or 1 story
Mercantile "M"
14,000
50 feet and/or 3 stories
Residential "R-1", "R-2", "R-4"
12,000
50 feet and/or 3 stories
Storage Group "S"
14,000
50 feet and/or 3 stories
Utility and Miscellaneous Group "U"
9,000
50 feet and/or 2 stories
b. 
The existing surrounding development is of a nature that the application of the architectural and design standards will not further the aesthetic qualities of the area; or
c. 
The proposed structural change is an expansion or rehabilitation of an existing structure and application of the architectural and design standards will not further the aesthetic qualities of the structure or the area; or
d. 
Screening of rooftop mechanical equipment will not further the architectural quality of the structure or improve the aesthetics of the structure; or
e. 
Landscape irrigation is of such a scale and scope that it will not be practically feasible to irrigate the entire site or landscaping is already established without irrigation and is proposed to remain.
8. 
[2]Screening for power inverters. capacitors, converters and all other transformer equipment used to power an electric vehicle charging station not located within the pump housing unit shall be screened to the height of the equipment either by sightproof fencing or equivalent landscaping.
[Ord. No. 20-102, 7-21-2020]
[2]
Editor’s Note: Former Subsection (B)(8), regarding exceptions to the required use of materials in Subsection (B), was repealed 1-15-2019 by Ord. No. 19-013.
[1]
Cross Reference—As to penalty, §400.1890.