B.
All exterior facades for a main building or structure, excluding glass windows and doors, in the I District shall be constructed of 100 percent masonry as defined in article 3, division 2. The use of stucco and EIFS are only permitted as secondary or accent materials.
1.
The Town Council, after recommendation by the Planning and Zoning Commission, may grant an exception to the foregoing exterior façade and design requirements, based upon consideration of the criteria listed in subpart 2, below.
2.
In considering an exception to the exterior façade requirements, the Planning and Zoning Commission and Town Council may consider whether a proposed alternate material:
a.
Is a unique architectural expression;
b.
Includes unique building styles and materials;
c.
Is consistent with high quality development;
d.
Is or would be visually harmonious with existing or proposed nearby buildings;
e.
Has obvious merit based upon the quality and durability of the materials; and
f.
Represents an exterior building material that is in keeping with the intent of this chapter to balance the abovementioned objectives.
3.
Any exterior façade exception shall be considered in conjunction with a preliminary site plan or site plan application.
C.
Permitted primary exterior materials are clay fired brick, natural, precast, and manufactured stone, granite, marble, architectural concrete block, split face concrete masonry unit, and architecturally finished concrete tilt wall.
D.
Secondary materials used on the façade of a building are those that comprise a total of ten percent or less of an elevation area. Permitted secondary materials are all primary materials, aluminum or other metal, cedar or similar quality decorative wood, stucco, and high impact exterior insulation and finish systems (EIFS). Stucco and EIFS are only permitted a minimum of nine feet above grade.
E.
No single material shall exceed 80 percent of an elevation area. A minimum of 20 percent of the front façade and all facades facing public right-of-way shall be clay fired brick or natural, precast, or manufactured stone. The clay fired brick or natural, precast, or manufactured stone shall be located at the main entry points of the building.
F.
The front façade, all facades facing public right-of-way, and all facades facing property that is zoned or designated on the future land use plan for residential uses shall be architecturally finished with same materials, detailing, and features. The architectural finish of all other facades must match the remainder of the building in color only.
G.
All buildings with a front façade or a facade facing public right-of-way which are greater than 200 feet in length shall incorporate projections or recesses that are at least six feet deep. Projections/recesses must be at least 20 percent of the length of the façade.
H.
Windows shall have a maximum exterior visible reflectivity of ten percent. The intent of this provision is to prevent the safety hazard of light reflecting from the windows on to adjacent roadways.
I.
All buildings within a common development, as shown on a preliminary site plan, shall have similar architectural styles, materials, and colors.
1.
Conceptual facade plans and sample boards shall be submitted with the preliminary site plan application for all non-residential uses. The purpose of the conceptual facade plan is to ensure consistency and compatibility for all buildings within a single development. Facade plans will be used only to ensure minimum standards are met.
2.
A final facade plan and sample boards shall be submitted with the final site plan application for all non-residential uses. Facade plans will be used only to ensure minimum standards are met. Façade plans shall be reviewed and approved by the Director of Development Services or his/her designee. The applicant may appeal the decision to the Planning and Zoning Commission and Town Council using the appeal procedure in article 4, division 1 of this Ordinance.
J.
All primary and secondary exterior building materials (exclusive of glass) shall be of natural texture and shall be neutrals, creams, or other similar, non-reflective earth tone colors. Bright, reflective, pure tone primary or secondary colors, such as red, orange, yellow, blue, violet, or green are not permitted.
K.
Corporate identities that conflict with the building design criteria shall be reviewed on a case-by-case basis and approved by the Director of Development Services or his/her designee. The applicant may appeal the decision to the Planning and Zoning Commission and Town Council using the appeal procedure in article 4, division 1 of this ordinance.
L.
Exposed conduit, ladders, utility boxes, and drain spouts shall be painted to match the color of the building or an accent color. Natural metal finishes (patina) are an acceptable alternative to paint.
M.
Exterior construction of maintenance buildings for golf courses, public or parochial schools, churches, of the Town of Prosper may be metal upon issuance of a specific use permit. Exterior construction of buildings used for agricultural purposes in conjunction with a school may be metal upon issuance of a specific use permit.
If an expansion or an addition to an existing metal building is not greater than ten percent or 7,000 square feet, whichever is greater, the masonry requirement shall not apply to the expansion or addition to the existing metal building.
N.
The Town Council may approve materials which are equivalent to, or exceed, the standards set forth herein.