HomeMy WebLinkAboutChapter 30 - Article VIII - Exterior Building Design StandardsCity of Oshkosh Zoning Ordinance Municipal Code
City of Oshkosh Chapter 30 – Article VIII - Page 1 Municipal Codes
ARTICLE VIII: EXTERIOR BUILDING DESIGN STANDARDS
Section 30-240: In General
(A) Purpose. The purpose of this Section is to regulate the design and materials used
for the exterior of buildings and structures within the City so as to maintain and
enhance the attractiveness and values of property in the community. This Article is
further intended to support the creation of a pedestrian-oriented urban
environment that emphasizes architectural and urban design principles of human
scale and visual interest. Additionally, this Article is intended to ensure the
development of structures that maintain a long-lasting appearance; withstand the
effects of time and exposure to the elements; resist damage in areas with high
vehicular and pedestrian traffic and in areas where larger equipment that could
cause damage is commonly used; that maintain a consistent character of
development based on land use and zoning district particular to each development;
and that contribute to the long-term economic and social vitality of the City of
Oshkosh.
(B) Applicability. Refer to Section 30-241 for the applicability of building design
standards to single and two family buildings.
(1) New Construction. The requirements of this Section shall apply to all
structures and buildings within the City constructed after the effective date of
this Chapter.
(2) Additions.
(a) All additions shall match or be substantially similar to the design and
materials of the existing building.
(b) Additions to buildings constructed after the effective date of this Chapter
shall comply with the standards of this Section.
(c) Buildings Constructed Prior to the Effective Date of this Chapter.
(i) If additions to an existing building(s) constructed prior to the
effective date of this Chapter are less than or equal to 50 percent of
the existing floor area of the building (measured cumulatively from
adoption of this Chapter), the standards contained herein shall not
apply but shall be regulated per Subsection (B)(2)(a) above.
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(ii) If additions to an existing building(s) constructed prior to the
effective date of this Chapter are greater than 50 percent of the
existing floor area of the building (measured cumulatively from
adoption of this Article), the standards contained herein shall apply.
(3) Alterations. For buildings constructed prior to the effective date of this
Chapter, alterations that do not impact the floor area of the building shall
comply with the standards of this Section, or shall match or be substantially
similar to the existing building design and materials. Ordinary repairs and
maintenance are not considered alterations.
(4) Exceptions and Appeals.
(a) Exceptions. Exceptions to the building design standards set forth in this
Section may be granted by the Director of Community Development, or
designee, to permit substitute building materials or construction of
comparable quality or design when it can be demonstrated that the
provisions of this Section are infeasible and that the granting of such
exception is in keeping with the purpose of this Section. Decisions
rendered by the Director of Community Development, or designee, may
be appealed to the Plan Commission
(b) Appeals. Any person affected by a decision of the Director of Community
Development, or designee, may petition for a hearing before the Plan
Commission.
(c) Variances. The Plan Commission is authorized to grant variances from the
strict application of the building design standards within this Section
when it is claimed that the intent of the standards in this Section have been
incorrectly interpreted, do not apply, or their enforcement causes
unnecessary hardship.
(i) The procedure for the granting of variances by the Plan Commission
shall be the same as that required for variances in Section 30-411, with
the exception that the Plan Commission shall serve the role of the
Zoning Board of Appeals.
(ii) When taking action, the Plan Commission shall make findings as
described in Section 30-411(F)(1).
(5) Beyond the rules in this Section, additional building design standards may
apply to:
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(a) Group and Large Developments (Section 30-171)
(b) Conditional Use Permits
(c) Planned Development Overlay Districts
(d) Campus Overlay Districts
(C) Review and Approval. Through the building permit and/or site plan review
process, the Department of Community Development shall be responsible and have
authority to hear, review, and act upon all proposed exterior architectural plans for
all proposed development.
(D) Exterior Building Materials. The 4 classes of building materials referenced in this
Chapter have the following meanings:
(1) Class I materials include brick, brick veneer, stone, stone veneer, and glass
(curtain/storefront).
(2) Class II materials include split face or decorative block, EIFS, and stucco.
(3) Class III materials include architectural/decorative metal panels, residential
aluminum siding, and siding made of wood, wood composite, vinyl, or fiber
cement.
(4) Class IV materials include smooth face or non-decorative block; concrete
panels (tilt-up or precast); asphaltic, fiberglass, metal, or poly-roofing siding;
non-decorative metal panels; corrugated metal; and plywood, chipboard, or
other non-decorative wood.
(E) Existing Buildings: Windows and Doors. [Revised 4.09.24]
(1) No existing window or door openings on any façade or gable end shall be
boarded up.
(a) Temporary closure shall be permitted for a period not exceeding 30 days to
protect a broken window, secure the property from storm damage, or to
prevent unauthorized access.
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Section 30-241: Single and Two Family Uses
(A) Purpose. The purpose of this Section is to maintain the basic architectural quality of
residences within the community, to minimize architectural and building
construction practices that may detract from the character and appearance of the
neighborhood as a whole, and to ensure compatible design between existing and
new homes. These standards apply to all single and two family structures within
the City of Oshkosh, with the exception of Mobile Homes defined in Section 30-
75(H).
(B) Existing Buildings: Windows and Doors. [Revised 4.24.18]
(1) Existing window openings on front façade including gables shall not be closed
or filled (totally or partially), except as provided for in Subsection 2., below.
(a) If standard-sized replacement windows cannot fit into an existing window
opening, a 10 percent variation in the height-to-width proportion for
replacement windows is permitted.
(2) Existing door openings on front façades shall not be closed or filled.
(a) Temporary closure shall be permitted for a period not exceeding 30 days.
(b) Door openings may be relocated but shall remain on the same façade or
another façade fronting a public street.
(C) Existing Buildings: Porches, Balconies, Decks, and Patios.
(1) Porches may be constructed on any façade of a structure.
(a) A minimum of 25 percent of the porch area shall be open or contain
translucent window and door openings so that no more than 75 percent
of the porch area is enclosed by solid walls.
(2) Decks, balconies, and patios shall be constructed only on a building’s rear or
interior side façades.
(a) Lots with public alley frontage and double-fronted-through-lots shall be
exempt from this requirement.
(b) Patios are permitted on a secondary street frontage of a corner lot if the
patio faces a lake, park, or other amenable feature of the neighborhood.
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(3) Porches, decks, and patios that can be viewed from a public street shall include
elements such columns, posts, railings, and spindles/balusters. Porches, decks,
and patios and shall be constructed in cedar, cypress, redwood, or appropriate
composite materials such as wood sawdust or mineral composite/high density
polyurethane plastic (HDPE), plastic, and pressure treated lumber. Porches,
decks, and patios may be constructed in decorative metal, wrought iron, metal
cable, or glass, if in keeping with the architectural style of the building, as
determined by the Director of Community Development, or designee.
(a) Elements constructed in pressure-treated lumber shall be painted or stained
after a curing period of no greater than 18 months.
(b) Spindles or balusters shall not be secured to the outside face of the deck or
other supports (including but not limited to, rails, rim joists, beams, or
columns).
(i) Fasteners that connect vertical components (spindles, balusters,
posts, etc.) to horizontal components (top or bottom rails) shall be
concealed so that they are not visible from the public right-of-way.
(4) Patios shall be constructed using brick, brick or stone pavers, or concrete.
(a) Water permeable pavers are permitted.
(b) Landscape treatments and berms may be used to elevate a patio to meet
rear or side entrance grades.
(D) Existing Buildings: Changes and Additions. [Revised 3.27.18]
(1) Changes to Existing Buildings. For the purposes of this Section, a change to an
existing principal structure is considered any alteration or demolition to the
materials, wall plane, and/or architectural features of any front or side façade.
(2) Front-loaded, Attached Garages. Front-loaded, attached garages shall
comprise no more than 50 percent of the width of the ground floor building
façade facing the street.
(a) If the ground floor building façade facing the street is articulated (such as
through the use of recesses, projections, windows, balconies, or dormers),
attached garages shall comprise no more 70 percent of the width of the
ground floor façade facing the street.
(b) This requirement shall not apply to side-loaded, attached garages.
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(3) Exterior Materials. The exterior materials used for new additions and changes
shall be the same materials or combination of materials as used on the original
building.
(a) New additions and changes may be constructed using alternative exterior
materials if said materials are complementary to the existing materials
and tie the addition/change and the original house together. Some
material contrast is permitted, but the difference between new and
original materials shall be subtle. For example, if the original house is
sided with wood clapboard, then fiber cement or vinyl siding of a similar
size and width would be suitable for an addition.
(b) The color(s) of materials used for new additions and changes shall match
or be complementary to the color(s) of the original structure.
(c) Exterior patchwork, repair, or reconstruction that results in a multi-
textured or multi-colored effect or an appearance not consistent with the
overall design character of the original structure is not permitted.
(4) Orientation. Additions to a principal structure and other changes that extend
the building’s footprint shall be placed on a rear façade, or side façade if rear
is not practical, in order to have a minimal impact on the overall scale and
character of the original house.
(a) New additions may be built with or without a setback from the front wall
plane of the original house.
(b) An addition that extends beyond the front wall plane (or the street side wall
plane on a corner lot) of the original house is permitted, provided there is
a lack of sufficient space in the house’s rear or interior side yard, and
provided the addition’s overall design matches or complements the
original home’s design.
(5) Height and Footprint.
(a) Additions and changes that increase the building’s height shall not be taller
than the principal structure’s dominant or highest roof ridgeline and shall
not overpower the principal structure’s overall scale and massing, except
as provided below.
(i) An exception to the height standard can be made if the addition
conforms and is compatible with the principal structure’s overall
architectural style and roof shapes and becomes an integral part of
the structure’s overall building form and design
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(b) An addition’s footprint shall not be more than 50 percent of the principal
structure’s existing footprint.
(6) Façades.
(a) Changes and additions that create blank walls on any front or street side
façade are not permitted
(b) A front façade must have a minimum of 25 percent of its wall space devoted
to window or door openings.
(c) A street side façade must have a minimum of 15 percent of its wall space
devoted to window or door openings.
(i) This design standard shall not apply if said wall area is part of an
attached garage.
(E) New Construction: Principal Structures on Infill Sites.
(1) Setbacks. Front yard setbacks for new principal structures shall be consistent
and align with the prevailing building setbacks found along the block and
surrounding neighborhood, as follows:
(a) The front yard setback of a new principal structure on an infill site shall be
determined by the existing front yard setbacks of the principal buildings
on the 2 properties abutting the subject property’s side yards. The front
yard setback shall be no greater than the largest setback of said abutting
properties and shall be no less than the smallest setback of said abutting
properties.
(i) If either or both said abutting properties are vacant, the minimum
front yard setback of the zoning district of the subject property shall
be used.
(ii) If a new residential building is being constructed adjacent to an
existing non-residential use, the front yard setback of the new
residential building shall be no greater than the setback of the
abutting residential property, or no less than the minimum front
yard setback of the zoning district of the subject property, whichever
is less.
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(iii) If a new residential building is being constructed between two
existing non-residential uses, the minimum front yard setback of the
zoning district of the subject property shall be used.
(2) Front-loaded, Attached Garages. Front-loaded, attached garages shall
comprise no more than 50 percent of the width of the ground floor building
façade facing the street.
(a) If the ground floor building façade facing the street is articulated (such as
through the use of recesses, projections, windows, balconies, or dormers),
attached garages shall comprise no more 70 percent of the width of the
ground floor façade facing the street.
(b) This requirement shall not apply to side-loaded, attached garages.
(3) Exterior Materials. [Revised 3.27.18]
(a) The exterior materials used on the front and side façades shall be visually
compatible with those used on other buildings on the block and in the
surrounding neighborhood.
(b) Modern materials may be used provided they are suitable to the style and
overall design of the principal structure.
(c) Exterior patchwork or reconstruction that results in a multi-textured or
multi-colored effect or an appearance not consistent with the overall
design character of the structure is not permitted.
(4) Orientation.
(a) A new principal structure, front façade, and primary entrance shall be
oriented to the primary street.
(b) On corner lots, the principal structure may be oriented to the side street
provided it meets the requirements for façades under Section (7), below.
(c) Front entrances shall be identified by a stoop, entrance platform (with or
without stairs), or porch. Full front and wraparound porches that
incorporate the front entrance are also permitted.
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(5) Height. The height of a new principal structure shall be compatible with those
of surrounding buildings.
(a) The height of a new principal structure shall not exceed the height of the
tallest single family or two family dwelling immediately adjacent to the
subject property by more than 1 story.
(6) Porches, Decks and Patios. Porches, decks, and patios for new construction on
infill sites shall meet the regulations for existing buildings in Subsection (C),
above.
(7) Façades. Designs that result in blank walls on any front or street side façade,
are not permitted and shall meet the regulations for existing buildings as
outlined in Subsection (D)(6) above. [Revised 6.11.19]
(a) The requirement that of the street side façade have a minimum of 15 percent
of its wall space devoted to window or door openings shall not apply if
said wall area is part of an attached garage. [Revised 6.11.19]
(F) New Construction: Principal Structures in New Neighborhoods (Non-Infill Sites).
(1) Front-loaded, Attached Garages. Front-loaded, attached garages shall
comprise no more than 50 percent of the width of the ground floor building
façade facing the street.
(a) If the ground floor building façade facing the street is articulated (such as
through the use of recesses, projections, windows, balconies, or dormers),
attached garages shall comprise no more 70 percent of the width of the
ground floor façade facing the street.
(b) This requirement shall not apply to side-loaded, attached garages.
(2) Exterior Materials. [Revised 3.27.18]
(a) New single family and two family dwelling units shall be clad in Class I,
Class II, or Class III materials.
(b) Class IV materials are prohibited.
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(3) Orientation.
(a) A new principal structure’s front façade and primary entrance shall be
oriented to the primary street.
(b) On corner lots, the principal structure may be oriented to the side street
provided it meets the requirements for façades under Section (5), below.
(c) Front entrances shall be identified by a stoop, entrance platform (with or
without stairs), or porch. Full front and wraparound porches that
incorporate the front entrance are also permitted.
(4) Porches, Decks and Patios. Porches, decks, and patios shall meet the
regulations for existing buildings in Subsection (C), above.
(5) Façades. Designs that result in blank walls on the front façade, are not
permitted and shall meet the regulations for front facades of existing buildings
as outlined in subparagraph (D)(6)(b) above. [Revised 4.11.17]
(a) On corner lots, either the front or street side façade shall meet the minimum
25 percent window or door area requirement. [Revised 4.11.17]
(G) Standing seam metal roofs in residential districts shall meet the following
conditions along with any additional conditions as deemed appropriate by the
Director of Community Development or designee. No standing seam metal roofs
will be permitted on contributing structures in historic districts, unless such
structures historically had comparable standing seam metal roofs. [Created 4.11.17]
(1) The standing seam metal roofing material shall have a low-reflectance finish so
as to minimize the amount of light reflected into the sky and windows of
adjacent properties. The maximum permitted Light Reflectance Value (LRV)
is 35% for metal roofs. Standing seam roofing shall be painted. Galvanized
roofs shall not be permitted.
(2) Any paint applied to the metal roof panels must be applied to such panels at
the factory using materials and a baking or other process that prevents the
paint from cracking or chipping though normal wear and tear of a residential
roof. Field applied painting of standing seam metal roofs is prohibited. The
roof shall not have exposed unfinished metal edges. Standing seam roofs shall
be complimentary to the house color and limited in color to greys, browns, dark
green or a pale green simulating a copper patina color. Any ice and snow block
or shield must match the color of the roof on which it is installed or be
complimentary to the color of the roof.
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(3) The standing seam metal roofing shall have a minimum thickness of 24-gauge
so as to minimize the potential for wind and hail damage.
(4) Seam profiles in standing seam roofs for residential properties shall be no
greater than 1” for roofs with pitches higher than 4:12, no greater than 1.5” for
roofs with pitches between 2:12 and 4:12, and no greater than 3” for pitches less
than 2:12.
(5) Standing seam metal roofing shall be installed per approved manufacturer’s
details and instructions.
(6) Standing seam metal roofing shall include at least the minimum underlayment
required per the manufacturer’s specifications or a minimum of 7/16” OSB
underlayment if no minimum is specified by the manufacturer.
(7) Exposed fasteners or standing seam roof designs that employ exposed metal
fasteners are prohibited. Ice and snow blocks or shields must also employ
concealed fasteners.
(8) Standing seam metal roofing shall meet all applicable building codes.
(9) Standing seam metal roofs installed on existing residential construction shall
not be constructed over existing roofing materials. Tear offs shall be complete
to the roof sheathing.
(10) Tin roofs and corrugated metal roofs are prohibited.
(11) Standing seam metal roofing shall be maintained in a rust-free state for the
duration of the roof’s lifespan.
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Section 30-242: Multi-Family Uses
These standards apply to all multi-family buildings and structures constructed after the
effective date of Chapter. These standards also apply to Apartments with Limited
Commercial land uses.
(A) Exterior Materials. Multi-family buildings shall be clad in Class I, II or III materials.
Class IV materials are prohibited. [Revised 4.28.20]
(1) Materials of comparable quality may be substituted for any class of material or
be used as a decorative element if the material can be removed or replaced with
a permitted exterior material, as determined by the Director of Community
Development, or designee.
(B) Building Entrance.
(1) The primary entrance shall be on the front façade facing the street.
(2) The primary entrance shall be covered a minimum of 3 feet from the door.
Recessed entries shall be deemed to meet this requirement.
(3) Exterior entry doors for individual units shall be residential in style (and shall
include frame and panel (real or decorative).
(4) Exterior entry doors for multiple units may be residential (as described above)
or commercial in style (glass).
(C) Façade Articulation.
(1) Façade lengths shall not be greater than 40 feet without articulation such as:
(a) Recesses or projections that step back or project a portion of the main façade
plane.
(b) Recesses or projections of upper floors from the ground floor façade plane.
(c) Vertical division using different textures or materials.
(d) Division of the façade into individual units through the use of windows,
entrances, arcades, porches, decks, balconies, lighting, etc.
(e) Roof form variation such as the inclusion of dormers, change in roof lines,
or change in roof type.
(2) On façades facing the street, windows and/or doors shall be required in order
to promote a visual connection to the street.
(a) The total area of windows and doors, including trim, shall comprise a
minimum of 20 percent of the total façade area, excluding gables.
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(D) Wall Details, Trim, and Windows.
(1) Exterior windows shall be appropriate to the architectural character of the
building.
(2) All façade openings shall be articulated or appropriately trimmed through the
use of materials such as lintels, sills, surrounds, shutters, etc.
(3) Natural wood shall be painted or stained unless it is cedar, redwood or other
naturally weather-resistant species intended to be exposed.
(4) Pressure-treated lumber shall be painted or stained after a curing period of no
greater than 18 months.
(E) Patios, Decks, and Balconies.
(1) Ground-level patios and decks facing the street shall be bordered with
landscape treatments.
(a) Covered porches are exempt from this requirement.
(2) Exterior stairs leading to a deck or balcony are not permitted on the front or
street side of a building.
(a) On corner lots, exterior stairs shall be permitted on the interior side façade.
(3) Exterior corridors shall be covered by the building roof, shall be located within
the footprint of the building foundation, and shall not be visible from the street.
(4) Upper-story decks and balconies shall be cantilevered, supported by vertical
columns, or supported from above.
(F) Mechanical and Exterior Building Systems.
(1) Drainage pipes on exterior walls shall match or be complementary to the color
of the roof and wall onto which they are mounted.
(2) Air intakes and exhaust vents for high-energy gas appliances and meters shall
not be permitted on any façade that faces a public street, unless they are
screened or if they match the color of the façade on which they are located.
(3) Building-mounted Equipment.
(a) Window-mounted air conditioning units shall not be permitted in any
window that faces a public street.
(i) When no alternative is available, units shall be masked (painted,
encased, etc.) in order to blend into the building’s exterior finish and
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shall be flush-mounted so as not to project beyond the main plane of
the façade more than necessary.
(b) Building-mounted equipment installed on the façade visible from an
adjacent public right-of-way or residential district must be disguised with
screening that is:
(i) Architecturally compatible with the primary structure to which the
equipment is attached. Screening materials shall be identical to or
substantially similar to the materials used on the building façade to
which the equipment is attached.
(ii) Incorporated as part of the building wall and/or flush-mounted so as
not to project beyond the main plane of the façade.
(iii) Consistent with the color of the structure to which the equipment is
attached.
(4) Roof-mounted Equipment. Roof-mounted equipment shall be screened,
preferably by parapet walls. Other acceptable screen types shall be:
(a) Architecturally compatible with the primary structure to which the
equipment is attached. Screening materials shall be identical to or
substantially similar to the materials used on the building façade to which
the equipment is attached.
(b) Consistent with the color of the structure to which the equipment is
attached.
(c) Designed to be an integral part of the building’s architectural design and
give the impression that it is something other than a mechanical screen.
(d) See Section 30-191(F) for screening requirements for ground-mounted
mechanical systems.
(G) Wall or Roof-Mounted Lighting.
(1) Full cutoff light fixtures are required.
(2) The design, color, height, location, and light quality of all on-building light
fixtures shall be consistent throughout the entire site, unless the building is
divided into individual components; in such case, all on-building light fixtures
shall be consistent within each individual component.
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(3) All entrances shall be lit after sunset. The minimum illumination at each
entrance shall be 1.0 foot-candles.
(H) Standing seam metal roofs in residential districts shall meet the following
conditions along with any additional conditions as deemed appropriate by the
Director of Community Development or designee. No standing seam metal roofs
will be permitted on contributing structures in historic districts, unless such
structures historically had comparable standing seam metal roofs. [Created 6.11.19]
(1) The standing seam metal roofing material shall have a low-reflectance finish so
as to minimize the amount of light reflected into the sky and windows of
adjacent properties. The maximum permitted Light Reflectance Value (LRV)
is 35% for metal roofs. Standing seam roofing shall be painted. Galvanized
roofs shall not be permitted.
(2) Any paint applied to the metal roof panels must be applied to such panels at
the factory using materials and a baking or other process that prevents the
paint from cracking or chipping though normal wear and tear of a residential
roof. Field applied painting of standing seam metal roofs is prohibited. The
roof shall not have exposed unfinished metal edges. Standing seam roofs shall
be complimentary to the house color and limited in color to greys, browns, dark
green or a pale green simulating a copper patina color. Any ice and snow block
or shield must match the color of the roof on which it is installed or be
complimentary to the color of the roof.
(3) The standing seam metal roofing shall have a minimum thickness of 24-gauge
so as to minimize the potential for wind and hail damage.
(4) Seam profiles in standing seam roofs for residential properties shall be no
greater than 1” for roofs with pitches higher than 4:12, no greater than 1.5” for
roofs with pitches between 2:12 and 4:12, and no greater than 3” for pitches less
than 2:12.
(5) Standing seam metal roofing shall be installed per approved manufacturer’s
details and instructions.
(6) Standing seam metal roofing shall include at least the minimum underlayment
required per the manufacturer’s specifications or a minimum of 7/16” OSB
underlayment if no minimum is specified by the manufacturer.
(7) Exposed fasteners or standing seam roof designs that employ exposed metal
fasteners are prohibited. Ice and snow blocks or shields must also employ
concealed fasteners.
(8) Standing seam metal roofing shall meet all applicable building codes.
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(9) Standing seam metal roofs installed on existing residential construction shall
not be constructed over existing roofing materials. Tear offs shall be complete
to the roof sheathing.
(10) Tin roofs and corrugated metal roofs are prohibited.
(11) Standing seam metal roofing shall be maintained in a rust-free state for the
duration of the roof’s lifespan.
Section 30-243: Commercial Uses and Mixed Uses
These standards apply to all commercial and structures constructed after the effective
date of Chapter. These standards also apply to Mixed Use Building and Live/Work Unit
land uses.
(A) Orientation.
(1) Buildings are encouraged to be oriented so that the front façade faces the road
with the highest traffic volumes.
(2) Façades facing the road with the highest traffic volumes shall be designed to
have the appearance of a front façade and shall include windows, doors and/or
other architectural components typically associated with front façades, as
approved by the Director of Community Development, or designee.
(3) Service or loading areas shall not be permitted between the building and the
public street.
(4) Drive-through windows shall not be located between the building and the
public street.
(B) Façade Articulation.
(1) Façade lengths shall not be greater than 70 feet without articulation such as:
(a) Division of the façade into individual components (i.e., storefronts, distinct
uses) through the use of architectural elements such as porches, balconies,
windows, covered entrances, arcades, awnings, marquees, lighting,
signage, etc.
(b) Recesses or projections that step back or project a portion of the main façade
plane.
(c) Recesses or projections of upper floors from the ground floor façade plane.
(d) Vertical division using different textures or materials.
(e) Roof form variation such as the inclusion of dormers, change in roof lines,
or change in roof type.
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(2) Buildings shall be designed to provide interest and variety. Flat, unadorned
walls shall be avoided. Each façade of a building shall include at least 1 design
element to break up the flatness of blank walls and shall at a minimum include
varied materials or colors, change in texture, expressed joints and details, or
surface relief.
(a) Additional elements used to break up the façade may include balconies,
lintels, sills, headers, belt courses, reveals, pilasters, windows, chimneys,
and other ornamental features as deemed appropriate by the Director of
Community Development or designee.
(C) Exterior Materials. Commercial buildings shall be predominately clad in Class I
materials. Class II and Class III materials may be used as accents and trim not to
exceed 50 percent of the total building façade. Class IV materials are prohibited.
(1) Rear building elevations not facing a public street or public parking lot shall be
exempt from this requirement.
(2) Materials of comparable quality may be substituted for any class of material or
be used as a decorative element if the material can be removed or replaced with
a permitted exterior material, as determined by the Director of Community
Development, or designee.
(D) Building Entrance.
(1) The main entrance shall be clearly defined and accentuated through the use of
detailing, distinctive materials, and/or colors, projections or recesses, porticos,
covered entrances, stoops, or other features as deemed appropriate by the
Director of Community Development, or designee.
(E) Mechanical and Exterior Building Systems.
(1) Drainage pipes on exterior walls shall match or be complementary to the color
of the roof and wall onto which they are mounted.
(2) Air intakes and exhaust vents for high-energy gas appliances and meters shall
not be permitted on any façade that faces a public street.
(3) Building-mounted Equipment.
(a) Window-mounted air conditioning units shall not be permitted in any
window that faces a public street.
(i) When no alternative is available, units shall be masked (painted,
encased, etc.) in order to blend into the building’s exterior finish and
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shall be flush-mounted so as not to project beyond the main plane of
the façade.
(b) Building-mounted equipment installed on the façade visible from an
adjacent public right-of-way or residential district must be disguised with
screening that is:
(a) Architecturally compatible with the primary structure to which the
equipment is attached. Screening materials shall be identical to or
substantially similar to the materials used on the building façade to
which the equipment is attached.
(b) Incorporated as part of the building wall and/or flush-mounted so as
not to project beyond the main plane of the façade.
(c) Consistent with the color of the structure to which the equipment is
attached.
(4) Roof-mounted Equipment. Roof-mounted equipment shall be screened,
preferably by parapet walls.
(a) Screening shall be architecturally compatible with the primary structure
to which the equipment is attached. Screening materials shall be identical
to or substantially similar to the materials used on the building façade to
which the equipment is attached.
(b) Equipment shall be consistent with the color of the structure to which the
equipment is attached.
(c) Screening shall be designed to be an integral part of the building’s
architectural design and give the impression that it is something other
than a mechanical screen.
(5) See Section 30-191(F) for screening requirements for ground-mounted
mechanical systems.
(F) Wall or Roof-Mounted Lighting.
(1) Full cutoff light fixtures are required at each entrance.
(2) The design, color, height, location, and light quality of all on-building light
fixtures shall be consistent throughout the entire site, unless the building is
divided into individual components; in such case, all on-building light fixtures
shall be consistent within each individual component.
(3) All entrances shall be lit after sunset. The minimum illumination at each
entrance shall be 1.0 foot-candles.
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Section 30-244: Industrial Uses
(A) Architectural Design.
(1) Buildings shall be designed to provide interest and variety; flat, unadorned
walls shall be avoided.
(2) Buildings shall be oriented so as to face the road with the highest traffic
volumes. This requirement shall not apply to buildings with frontage on state
or federal highways, unless there is direct access from the development to the
highway.
(a) If a visitor, office, and/or customer entrance component is included in the
building, such space(s) shall be clearly defined and accentuated through
the use of detailing, windows, distinctive materials and/or colors,
projections or recesses, or other architectural features as deemed
appropriate by the Director of Community Development, or designee.
(B) Exterior Materials. Industrial buildings shall be clad in Class I, II or III materials.
Certain Class IV materials are also acceptable as noted.
(1) For all façades facing a public street, a minimum of 15 percent of the façade
shall be composed of Class I building materials.
(a) This requirement may be reduced to 10 percent of the façade provided that
other elements are incorporated into the building and site design, such as
façade articulation, increased landscaping, or other improvements
approved by the Director of Community Development, or designee.
(2) Smooth-faced/non-decorative block may be used if enhanced on all elevations
with Class I or II materials in combination with decorative fascia, overhangs,
trim, lintels, sills, headers, belt courses, reveals, pilasters, windows, chimney,
or other architectural features as deemed appropriate by the Director of
Community Development, or designee. In such cases, Class I or II materials
amount to more than 15 percent of each façade.
(3) Concrete panels (tilt-up/precast) may be used if they are part of a palette of
permitted materials or if they incorporate horizontal and vertical articulation
including, but not limited to, changes in color or texture.
(4) Non-decorative metal panels may be used if enhanced on all elevations with
Class I or II materials in combination with decorative fascia, overhangs, trim,
lintels, sills, headers, belt courses, reveals, pilasters, windows, chimney, or
other architectural features as deemed appropriate by the Director of
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Community Development or designee. In such cases, Class I or II materials
amount to more than 15 percent of each façade.
(a) In the RH-35, UI and HI zoning districts, visible exterior fasteners shall be
the same color as the attached wall for any principal or accessory building
visible from a public street.
(b) In all other zoning districts, exterior wall fasteners shall be fully concealed
from view.
(5) Materials of comparable quality may be substituted for any class of material or
be used as a decorative element if the material can be removed or replaced with
a permitted exterior material, as determined by the Director of Community
Development, or designee.
(C) Mechanical and Exterior Building Systems.
(1) Applicability. See Section 30-191(F) to determine whether screening is
required.
(2) Drainage pipes on exterior walls shall match or be complementary to the color
of the roof and wall onto which they are mounted
(3) Building-mounted Equipment.
(a) Building-mounted equipment installed on the façade visible from an
adjacent public right-of-way or residential district must be disguised or
screened in one of the following ways:
(i) Architecturally compatible with the primary structure to which the
equipment is attached. Screening materials shall be identical to or
substantially similar to the materials used on the building façade to
which the equipment is attached.
(ii) Incorporated as part of the building wall and/or flush-mounted so as
not to project beyond the main plane of the façade.
(iii) Consistent with the color of the structure to which the equipment is
attached.
(4) Roof-mounted Equipment. Roof-mounted equipment visible from an adjacent
public right-of-way or residential district shall be screened, preferably by
parapet walls. Other acceptable screen types shall be:
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(i) Architecturally compatible with the primary structure to which the
equipment is attached. Screening materials shall be identical to or
substantially similar to the materials used on the building façade to
which the equipment is attached.
(ii) Consistent with the color of the structure to which the equipment is
attached.
(iii) Designed to be an integral part of the building’s architectural design
and give the impression that it is something other than a mechanical
screen.
Section 30-245: Special Areas
(A) Central Mixed Use District (CMU) Design Standards. See Section 30-54 for
additional requirements for this district.
(1) Purpose. This district is intended to implement the urban design
recommendations of the Comprehensive Plan, by preserving and enhancing
the historical quality of the downtown, and by attaining a consistent visually
pleasing image for the downtown area, as defined by the mapped boundaries
of the Central Mixed Use District.
(2) Applicability. The regulations of this Section shall apply to new development
and changes to the exterior of any building within the mapped boundaries of
the Central Mixed Use District.
(3) Review and Approval.
(a) There are three categories of review in this district:
(i) Renovation Review (renovation of the exterior appearance of a
property such as repainting, re-roofing, residing or replacing with
identical colors, finishes, and materials) [Revised 4.24.18]
(ii) Design Alteration Review (change only in the exterior appearance
of a nonresidential or multi-family property such as painting,
roofing, siding, architectural component substitution, fencing,
paving, or signage)
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(iii) Project Review (modification to the physical configuration of a
property such as the erection of a new building, the demolition of an
existing building, or the addition or removal of bulk to an existing
building) [Revised 4.24.18]
(b) Plan Commission review and approval may be required. The three
categories and procedural requirements for review and approval are
described fully in Section 30-386.
(c) Design standards for changes meeting the criteria for Project Review are
found in Section 30-245(A)(5), below. Design standards for changes
meeting the criteria for Design Alteration Review or Renovation Review
are found in Section 30-245(A)(6), below.
(d) Designated Historic Structures. These regulations are separate and in
addition to requirements related to changes to Local, State, and National
Landmarks and properties, and as regulated by the Historic Preservation
Ordinance (Section 30-447). Prior to taking action, the Plan Commission
shall consult with the Landmarks Commission for all properties
designated as historic, contributing to a historic district, or considered by
a study or survey to be eligible for listing on a local, state, or national
register.
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(4) Design Theme: The design theme for the Central Mixed Use District is based
on its historical, pedestrian-oriented development pattern that incorporates
retail, residential, and institutional uses. Building orientation and character
includes minimum setbacks at the edge of the sidewalk, multi-story structures,
use of alleys for access, and on-street or other off-site parking. The design
theme is characterized by a variety of architectural styles popular at the time,
including Italianate, Romanesque, and Neoclassical, in a 2- or 3-story format
with office, storage, or residential located over commercial. The façades of
these buildings have a traditional main street storefront appearance, are
relatively small in scale, have street yard and side yard setbacks of zero feet,
have prominent horizontal and vertical patterns formed by regularly spaced
window and door openings, detailed cornice designs, rich detailing in masonry
coursing, window detailing and ornamentation, and are predominately brick,
stone, or wood. Exterior building materials are of high quality. Exterior
appurtenances are minimal. Exterior colors are harmonious, simple, and
muted. Exterior signage blends, rather than contrasts, with buildings in terms
of coloring (complementary to building), location (on-building), size (small),
and number (few).
Figure 30-171a: Architectural Components
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(5) Design Standards for Project Review (New Construction, Building Additions,
and Building Alterations).
(a) The design standards contained in this Subsection shall apply to all changes
meeting the criteria for Project Review (including all new buildings,
building additions, and new building appurtenances). Such activities
shall correspond to the following:
(i) Urban design guidelines as determined by the Plan Commission and
as evidenced by certain existing structures within the Downtown.
(ii) The following requirements for building setback; height; building
mass; horizontal rhythms (created by the placement and design of
façade openings and related elements such as piers, columns);
vertical rhythms (created by the placement and design of façade
details such as sills, transoms, cornices and sign bands); roof forms;
exterior materials; exterior surface features and appurtenances;
exterior colors; exterior signage; on-site landscaping; exterior
lighting; parking and loading area design; and the use of screening.
(b) Building Setback. Throughout the district, the setback of buildings from
street yard and side yard property lines shall be compatible with existing
buildings in the immediate area which conform to the design theme
described in Subsection (4) above, as determined by the Plan Commission.
(c) Building Height.
(i) Throughout the district, the height of buildings shall be compatible
with existing buildings in the immediate area which conform to the
design theme described in Subsection (4) above, as determined by
the Plan Commission.
(ii) Buildings shall not be more than 2 stories taller than the height of a
building of similar use on one of the immediately adjoining
properties. See Figure 30-171b. Taller building heights may be
approved by conditional use permit.
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(d) Building Mass.
(i) Throughout the district, the mass of buildings shall be compatible
with existing buildings in the immediate area which conform to the
design theme described in Subsection (4) above, as determined by
the Plan Commission.
(ii) The characteristic proportion (relationship between façade height
and width) of the design theme shall be maintained.
(iii) Building mass for large structures (with a façade area exceeding
5,000 square feet) shall be disguised through the use of façade
articulations, or through the use of exterior treatments which give
the impression of directly adjoining individual buildings, as
determined by the Plan Commission.
(e) Horizontal Rhythms. The horizontal pattern of exterior building elements
formed by patterns of building openings for windows and doors, and
related elements such as piers and columns shall be spaced at regular
intervals across all visible façades of the building, and shall be compatible
with those of existing buildings in the immediate area which conform to
the design theme described in Subsection (4) above, as determined by the
Plan Commission.
Figure 30-171b: Building Height Example
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(f) Vertical Rhythms. The floor heights on main façades shall appear visually
in proportion to those of adjoining buildings. The rhythm of the ground
floor shall harmonize with the rhythm of upper floors. The vertical
pattern of exterior building elements formed by patterns of building
openings for windows and doors, and related elements such as sills,
headers, transoms, cornices and sign bands shall be compatible in design
and elevation with those of existing buildings in the immediate area
which conform to the design theme described in Subsection (4) above, as
determined by the Plan Commission.
(g) Roof Forms. Flat or gently sloping roofs which are not visible from the street
shall be used. Mansards or other exotic roof shapes not characteristic of
the design theme described in Subsection (4) above, as determined by the
Plan Commission, shall not be used. See Figure 30-171c.
(h) Exterior Materials. Selected building materials shall be compatible with
those of existing buildings in the immediate area which conform to the
design theme described in Subsection (4) above, a determined by the Plan
Commission.
(i) Masonry. Stone or brick facing shall be of even coloration and
consistent size. Cinder block, concrete block, concrete slab, or
concrete panel shall not be permitted.
Figure 30-171c: Roof Forms
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(ii) Siding.
(aa) Wood, thin board texture vinyl, fiber cement, or textured metal
clapboard siding may be appropriate, particularly if the
proposed non-masonry exterior was used on a building which
conforms to the design theme described in Subsection (4)
above, as determined by the Plan Commission.
(aa) In certain instances clapboard, board and batten may be in
keeping with the design theme.
(bb) Class IV materials are prohibited.
(iii) Glazing. Clear, or slightly tinted glass or related glazing material
shall be used. Mirrored glass, smoked glass, or heavily tinted glass
shall not be permitted, unless needed in a special situation as
determined by the Plan Commission.
(i) Exterior Surface. Exterior surface appurtenances shall be compatible with
those of existing buildings in the immediate area which conform to the
design theme described in Subsection (4) above, as determined by the
Plan Commission.
(i) The traditional storefront design theme (characterized by strong
horizontal and vertical rhythms formed by building openings,
windows, and transom windows) shall be employed for all new
nonresidential buildings. Ground floors consisting entirely of
residential or office uses shall be exempt from this requirement.
(ii) Throughout the district, avoid cluttering building façades with
brackets, wiring, meter boxes, antennae, gutters, downspouts and
other appurtenances. Unnecessary signs shall also be avoided.
Where necessary, such features shall be colored so as to blend in,
rather than contrast, with the immediately adjacent building
exterior. Extraneous ornamentation which is inconsistent with the
design theme described in Subsection (4) above, as determined by
the Plan Commission, is also prohibited.
(j) Awnings and Marquees. Awning and marquee size, color and placement
shall complement the architectural character of the building, as
determined by the Plan Commission.
(i) Soft, weather-treated canvas or vinyl materials which allow for
flexible or fixed installation shall be used for awnings.
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(ii) Aluminum or suspended metal canopies shall be prohibited.
(iii) Signage applied to awnings shall be simple and durable.
(iv) Backlit awnings are prohibited.
(k) Exterior Lighting. On-building exterior lighting shall be compatible and
harmonious with the design theme described in Subsection (4) above, as
determined by the Plan Commission.
(i) On-Building Lighting. The design, color, height, location, and light
quality of all on-building light fixtures shall be consistent for all light
fixtures.
(ii) Ground-Mounted Lighting. The design, color, height, location and
light quality of ground-mounted lighting shall be consistent with the
design theme described in Subsection (4) above, as determined by
the Plan Commission.
(l) Signage. All signage existing upon the adoption date of this Ordinance,
which does not comply with the standards of Article X: Signage, may be
continued as long as it is well maintained.
(i) The maintenance of such legal nonconforming signs shall be limited
to repair of the sign structural or lighting elements, and to the
repainting or replacement of the sign face with identical new
material, and original appearance.
(ii) Should a change in material or original appearance be desired, the
legal nonconforming sign shall be removed.
(iii) Sign size, color and placement shall complement the architectural
character of the building, as determined by the Plan Commission.
(m) Cleaning. Structural components and exterior materials shall be cleaned
when necessary, and with only the gentlest possible methods.
(i) Low-pressure water, steam cleaning, and soft natural bristle brushes
are permitted.
(ii) Sandblasting and power washing (more than 400 psi) are prohibited.
(iii) Other methods shall be pre-approved by the Plan Commission.
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(6) Design Standards for Design Alteration Review and Renovation Review
(Changes to the Exterior Appearance of a Property).
(a) Applicability. The design standards contained in this Subsection shall
apply for the following changes to the exterior of a property:
(i) All changes meeting the criteria for Design Alteration Review
(including painting, roofing, siding, architectural component
substitution, fencing, paving, and signage)
(ii) All changes meeting the criteria for Renovation Review (including
repainting, re-roofing, residing, or replacing with identical colors,
finishes, and materials)
(iii) Any other instance in which existing construction is proposed for
rehabilitation and/or restoration. (New projects, building additions,
and new appurtenances and features shall comply with the Design
Standards of Subsection (5) above.)
(b) In General. Buildings shall be restored relying on physical evidence (such
as photographs, original drawings, and existing architectural details) as
much as possible, in keeping with the design theme described in
Subsection (4) above, as determined by the Plan Commission.
(c) Exterior Materials and Surface Features. Materials and features identical to
the original exterior materials and surface features shall be used. If
replacement with identical materials and features is not possible, other
features and materials may be used, provided they are compatible with
the design and style of the building, as determined by the Plan
Commission.
(i) Where such knowledge is lacking, materials and features in common
use at the time of building erection shall be used.
(ii) Significant architectural features, including cornices, moldings and
coursings shall be preserved or replaced with identical features and
materials where possible.
(d) Windows and Doors. The size, proportion, and rhythm of original windows
and doors shall not be altered.
(i) Original window and door openings shall not be blocked. Where
now blocked, blocked window and door openings shall be restored
where possible.
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(ii) Window and door features, including lintels, sills, architraves,
shutters, pediments, hoods and hardware, shall be preserved where
possible.
(aa) If preservation is not possible, as determined by the Plan
Commission, window and door features shall be replaced with
identical features and materials. If replacement with identical
features and materials is not possible, other features and
materials may be used, provided they are compatible with the
design and style of the building, as determined by the Plan
Commission.
(bb) Dark frames (i.e. anodized bronze) shall be used to replace
storefront and upper story windows.
(cc) Clear aluminum finishes and mill finish aluminum storm
windows are prohibited.
(dd) If shutters are proposed, real, functional shutters or shutters
that are the same dimensions as real, functional shutters (as
opposed to purely decorative shutters) shall be used.
(b) Storefronts. Storefronts shall fit inside the original shop front in terms of
all 3 dimensions (vertical, horizontal and front to back articulation).
(i) Display windows shall be restored to their original appearance.
(ii) The configuration of display windows shall be substantially similar
to the original configuration. This provision shall be construed to
prohibit garage doors and bay windows when they were not part of
the original building design.
(c) Entrances, Porticos, and Porches. Original porches, and steps shall be
retained, except as required to meet accessibility standards. Porches,
porticos, steps, and related enclosures which do not comply with the
architectural design theme, as determined by the Plan Commission, shall
be removed.
(d) Roofs. The original roof shape and character of visible materials shall be
retained. Original architectural features which give the roof its essential
character, including dormer windows, cupolas, cornices, brackets,
chimneys and weathervanes, shall be preserved if in keeping with the
architectural design theme described in Subsection (4) above, as
determined by the Plan Commission.
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(B) Riverfront Overlay District (RF-O) Design Standards.
(1) Purpose. This district is intended to enhance the quality of development along
the riverfront, increase public access to the riverfront area, and attain a
consistent visually pleasing image for the riverfront area, as defined by the
mapped boundaries of the Riverfront Overlay District.
(2) Applicability. The regulations of this Section shall apply to new development
and changes to the exterior of any building within the mapped boundaries of
the Riverfront Overlay District.
(3) Review and Approval.
(a) There are three categories of review in this district:
(i) Renovation Review (renovation of the exterior appearance of a
property such as repainting, re-roofing, residing or replacing with
identical colors, finishes, and materials) [Revised 4.24.18]
(ii) Design Alteration Review (change only in the exterior appearance
of a nonresidential or multi-family property such as painting,
roofing, siding, architectural component substitution, fencing,
paving, or signage)
(iii) Project Review (modification to the physical configuration of a
property such as the erection of a new building, the demolition of
an existing building, or the addition or removal of bulk to an
existing building) [Revised 4.24.18]
(b) Plan Commission review and approval may be required. The three
categories and procedural requirements for review and approval are
described fully in Section 30-386.
(4) Transparency. All façades shall consist of a minimum percentage of windows
or doors to allow views into and out of the building’s interior and to promote
a visual connection to the street and river. The minimum percentage of
windows or doors shall include trim but exclude gables.
(a) Ground floor, nonresidential uses: The total area of windows and doors
shall comprise a minimum of 25 percent of the ground floor façade area
containing the nonresidential use.
(b) Ground floor, residential uses: The total area of windows and doors shall
comprise a minimum of 15 percent of the ground floor façade area
containing the residential use.
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(c) Upper floors, all uses: The total area of windows and doors shall comprise
a minimum of 15 percent of the total façade area above the ground floor.
(5) Exterior Materials. Commercial buildings shall be predominately clad in Class
I materials. Class II and Class III materials may be used as accents and trim not
to exceed 30 percent of the total building façade. Class IV materials are
prohibited.
(a) Materials of comparable quality may be substituted for any class of
material or be used as a decorative element if the material can be removed
or replaced with a permitted exterior material, as determined by the
Director of Community Development, or designee.
(6) Waterfront façades. Waterfront façades are defined as façades that face the Fox
River. The following requirements apply to all waterfront façades.
(a) Entrance. At least 1 functional entrance is required on the waterfront
façade. Said entrance shall be clearly defined and accentuated through the
use of detailing, distinctive materials, and/or colors, projections or
recesses, porticos, covered entrances, stoops, or other features as deemed
appropriate by the Director of Community Development, or designee.
(i) If a riverwalk path is present, a minimum 5-foot-wide paved
pedestrian path shall be provided that connects the riverwalk path
to the waterfront entrance.
(b) In order to promote a visual connection to the waterfront, waterfront
façades shall include transition spaces such as arcades, loggia, terraces,
steps leading to the waterfront, articulated entrances, storefront windows,
canopies, glass awnings, or other features as deemed appropriate by the
Director of Community Development, or designee.
(c) In order to provide privacy for private dwelling units, residential uses
facing the waterfront shall have steps, patios, terraces, lawns, knee walls,
gardens and landscaping, or similar features that provide separation of
the public walkway from private dwelling unit windows.
(7) Residential buildings shall have functional patios or balconies for each unit
facing the waterfront. Said patios or balconies shall be a minimum of 6 feet
deep. Balconies shall be cantilevered or supported from above.
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(8) Roofs.
(a) Flat roofs are preferred. Pitched roofs are permitted if they are in character
with the building’s architectural style or the character of the surrounding
area.
(b) Rooftop terraces, decks, and gardens are highly encouraged.
(9) See Section 30-159 for additional requirements for this district.
Sections 30-246 to 30-249: Reserved
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