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CITY OF WEST CHICAGO
DEVELOPMENT COMMITTEE
AGENDA ITEM SUMMARY
ITEM TITLE:
AGENDA ITEM NUMBER:
Design Standards
Allowable Building Materials FILE NUMBER:
COMMITTEE AGENDA DATE: Jan. 8, 2024
Disaussion Item COUNCIL AGENDA DATE:
STAFF REVIEW: Tom Dabareiner, AICP SIGNATURE Zi
APPROVED BY CITY ADMINISTRATOR: Michael SIGNATURE
Guttman
ITEM SUMMARY:
Following the discussion at the November Development Committee meeting regarding the draft
Design Standards Addendum, Staff was directed to research what types of building materials that
other communities allow in their commercial districts, specifically the cities of St. Charles and
Naperville. Each of these communities contain design standards documents that are similar in format
to each other with photos to illustrate the intent of the standards. Both documents were originally
created in 2011.
The City of St. Charles allows a variety of building materials in addition to brick, such as
natural/architectural cast stone, tinted/textured concrete masonry units, stucco, cedar wood, and fiber-
cement siding (commonly known as Hardie-boards). The City of Naperville is somewhat similar
although it specifically states that brick and stone are preferred as the primary and accent building
materials, though not required. Wood clapboard and fiber-cement siding, however, are also allowed.
While Naperville prohibits stucco as a primary material, stucco is permitted as a secondary material on
the building accents.
When compared to West Chicago’s Design Standards, these two communities allow more flexibility in
choices for building materials. Buildings in West Chicago’s commercial districts are prohibited from
having any primary material other than brick or stone and multi-family buildings are required to have at
least 90% brick or stone. These requirements may stifle creative architectural design and may
significantly increase overall costs for a developer. The trend in commercial and multi-family
development in the Chicago suburban market has shifted in the last decade away from all brick/stone
buildings to incorporate more creative and cost-effective materials. Staff therefore recommends the
design standards be amended to allow other primary materials other than brick or stone on
commercial and multi-family structures, including fiber-cement horizontal siding, textured concrete
masonry units, and stucco.
ACTION PROPOSED:
Discussion only. If the Committee concurs with staffs recommendation then staff will prepare a zoning
text amendment for review at the February Development Committee meeting.
COMMITTEE RECOMMENDATION:
Attachments: Excerpts from City of St. Charles Design Standards and City of Naperville Design Standards

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City of St. Charles
Intent: Roofs should be designed to add visual interest to the building, to
conceal necessary service equipment, and to establish the building's identity.
Standard
1. HVAC equipment and similar appurtenances shall be located and/or screened in
conformance with Section 17.26.120.
(Ord. 2011-Z-1 § 6.)
Guidelines:
1. Root lines should either be varied with a change in height or the incorporation
of a major focal point feature, such as a dormer, gable or projected wall feature,
every one-hundred (100) linear feet in building length.
Parapets should feature three-dimensional cornices or other shadow-creating
detail elements along their tops.
3. Mansard roofs are discouraged as the predominant roof design, but may be used
on a limited basis to add interest and variety.
4. “Green roof” designs are encouraged.
. Pipe stacks and similar appurtenances that are required by code and cannot
reasonably be hidden should be concealed as much as possible by location and
coloring.
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6. Primary colors, high-intensity colors, metallic or fluorescent colors should not
be used as predominant roof colors.(Ord. 2011-Z-1 § 7.)
E. Building Materials
Intent: Buildings should be constructed of quality materials that reduce
maintenance costs over the life of the building, relate to traditional building
materials used historically in Kane County, and reinforce the character of the
community.
Standards:
Approved and prohibited building materials in the BL, BC, BR, and O-R districts
are:
1. Approved Materials
a. Brick
b. Architectural metal (such as for window and door framing) and metal
composite panels
c. Natural or architectural cast stone

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d. Tinted and/or textured concrete masonry units
e. Stucco, installed without the use of Exterior Insulated Fi inishing Systems
(EIFS)
f. Tilt-up concrete panels designed with a brick veneer or other architectural
design
g. Non-reflective glass
h. Cedar or equivalent wood or fiber-cement siding and trim when consistent
with the architectural style of the building
i, Other materials as approved by the City Council or Historic Preservation
Commission
2. Prohibited Materials
a. Smooth-faced concrete masonry units
b. Painted masonry units
c. Exterior Insulated Finishing Systems (EIFS) comprised of polystyrene
foam panels, regardless of base or finish coat or treatment, located less
than ten feet (10°) above grade, or over more than ten percent (10%) of any
building wall
d. Vinyl siding
e. Pre-fabricated steel panels of the type used in farm, storage, and industrial
buildings
f. Plain tilt-up conerete panels
3. Uniform Materials
Use of uniform exterior building materials shall be required on all facades. For
example, if the front wall contains a mixture of brick and concrete masonry
units, the side and rear walls shall contain the same materials in approximately
the same proportions.
(Ord. 2011-Z-1 § 8.)
F, Coordinated Signage
A master sign plan shall provide for coordinated design for all building-mounted
signage and shall include, at a minimum, criteria and specifications for general
appearance, format of message, font size and style, lighting, location, and
construction materials. Where signs are to be located on a wall of a multi-tenant
shopping center, they shall be located at a generally uniform height on the
building wall and shall not cover or overhang any architectural feature.
(2006-Z-12: § 2)
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prominent visual element of the facade.
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Parking areas should be located to the rear of buildings to minimize their
visibility from the street.
5. Building Materials
Intent: Buildings should be constructed of quality materials that reduce
maintenance costs over the life of the building, relate to traditional building
materials used historically in Kane County, and reinforce the character of the
community.
Standards: Permitted and prohibited building materials in the RM-1, RM-2
and RM-3 Districts are:
1. Approved Materials
Approved materials for exterior use in the construction of new multiple-family
and townhouse developments in St. Charles are as follows:
a. Modular-sized clay brick
b. Cedar or equivalent wood, or fiber-cement, horizontal siding
c. Stucco, installed without the use of Exterior Insulated Finishing Systems
(EIFS)
d. Terra cotta or similar glazed masonry units
e. Architectural metal (such as for window and door framing)
f. Natural or architectural cast stone
g. Trim, frieze boards, soffit and fascia boards may be of wood, molded
polymer, copper, or fiber cement material; aluminum or vinyl material
may be used for soffit and fascia boards only
h. Architectural concrete masonry units for a foundation course only
i. Standing seam metal roofing
j. Slate or tile roofing
k. Wood shake shingles
1. Architectural grade asphalt and fiberglass shingles for roofs
m. Individual glass windows in wood, aluminum or vinyl covered wood
frames with true divided lights (i.e. no false appliqué mullions)
n. Glass block for accenting purposes (glass block walls are not included in
this category)
o. Other materials as approved by the City Council or Historic Preservation
Commission
2. Prohibited Materials Prohibited materials for exterior use in the construction of
new multiple-family and townhouse developments in St. Charles are as follows:
a. Smooth-faced or textured concrete masonry units (CMU)
b. King-size or jumbo brick
c. Exposed aggregate (rough finish) concrete wall panels
d. Tilt-up concrete panels

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City of Naperville
C.2. Color
1. Select exterior colors that complement the hues of nearby buildings. Typical building colors in the
downtown area include the natural brick and stone shades of red, buff, white, cream and gray.
2. Choose building and accent colors that are appropriate to the period or architectural style of a
building. :
3. Use darker or brighter hues only for accent or to draw attention to details such as architectural
ornamentation or doorways.
4. Do not apply paint to masonry surfaces where none previously existed.
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C.3. Materials
Image 8: DISCOURAGED use of color (bright,
1. Brick and stone are preferred primary and accent building materials for all building types, including conflicting hues) in a downtown setting
multiple-family.
2. Apply wood clapboard siding or similarly styled fiber cement siding as appropriate to the building
architecture. Avoid the use of rough sawed wood, aluminum siding, rustic shingles or plastic panels.
3. Do not use Stucco, EIFS or Dry-vit as a primary material. These materials may be acceptable as an
accent application above the storefront level, based on the design intent of the building.
4. Do not use glass, metal panels, and concrete as primary building materials on the street facade in
the downtown area.
5. Use consistent building materials and detailing on all sides of a structure that are open to public
view.
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Image 9: A complementary mix of masonry and
wood materials
Primary Material: the dominant exterior building material, typically comprising 75% to 90% of each
exterior building face excluding windows and doors.
Accent Material: utilized to provide architectural interest and variety on a building. Accent materials
will typically comprise 10% to 25% of each building face excluding windows and doors, depending on
architectural style and context.
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Naperville Downtown2030: Planning the Downtown Experience - Downtown Design Standards Page 9