§ 445. Building architecture, materials and colors.

(a)

Applicability. The following design guidelines and standards apply to all newly constructed buildings used for multi-family residential, office, institutional, commercial, or industrial purposes to include all accessory structures. These standards do not apply to single-family residential or duplex uses.

(b)

Architectural review. All design and construction for buildings subject to this section shall require architectural review by the public development department for consistency with the provision of this section. All building plans must be submitted with the development plan for review. All building plans shall clearly indicate all of the proposed building materials and colors for each façade sufficient to demonstrate compliance with this section. Approval of architecture must be granted by the public development department prior to issuance of a development permit.

(c)

Consistent architectural identity. Buildings that are located within the same development shall be constructed of similar materials and colors to show continuity between all out parcels, accessory buildings, and principal building. The use of a common palette of building materials should be maintained for building façades to create a consistent and traditional architectural identity. Traditional architecture shall include, for example, the use of brick, pitched roofs, low-profile signage, and subdued colors.

(d)

Building orientation. Principal building entrances shall be oriented to public streets.

(e)

Modulation. For projects with more than one commercial/retail building and multi-family residential developments, variations in façade, roofline and depth should be provided to lend the appearance of multi-tenant occupancy. The massing of building façades longer than 150 feet that are approximately parallel to the right-of-way and oriented to a public street shall be modulated to increase visual interest, as follows:

1.

Building façades that are less than 500 feet long shall be modulated at intervals no greater than 100 feet in length.

2.

Building façades that are more than 500 feet long shall be modulated at intervals no greater than 20 percent of the length of the façade.

(f)

Contrasting base. Building designs shall include a minimum two-foot high contrasting base, along the entire front façade of buildings and extending for a distance of at least ten feet along the sides of buildings.

(g)

Primary building materials. This subsection specifies the primary building materials that may be used and combined to create a consistent, attractive, interesting and long-lasting building design. There shall be no more than two primary building materials used on a single building façade (excludes authorized use of secondary or accent materials). This subsection does not apply to doors:

1.

Brick, except that brick veneers that are intended to simulate brick exteriors are not acceptable.

2.

Stone. Natural stone such as, but not limited to, granite, limestone, and acid marble are allowed building materials. Terra cotta and/or cast stone, which simulate natural stone, are also acceptable. Painted stone is not allowed.

3.

Split-face block/concrete masonry unit (CMU) is restricted to ten percent of the surface area of the façade on institutional and commercial buildings and 50 percent on industrial buildings.

4.

Tilt/architectural pre-cast concrete is permitted by special use approval only and with a design plan consistent with the surrounding development and area

5.

High grade stucco is restricted to 50 percent of the surface area of a façade (the amount of material shall be calculated using the gross square footage of wall area per façade).

6.

Natural wood and/or cement-based artificial wood siding are allowed only for residential buildings.

7.

Glass is restricted to 50 percent of the wall area per façade.

8.

Metal is allowed up to 25 percent of the surface area of a façade for commercial and institutional buildings.

9.

Exposed concrete block and tile are not allowed as building materials on a façade.

(h)

Secondary (accent) materials. Other building materials not authorized as primary building materials in this section, such as but not limited to wood and tile, may be used as secondary or accent building materials to enhance the façade of the building or for decorative elements not exceed 15 percent of total wall area per façade for institutional and commercial buildings and 30 percent of total wall area per façade for industrial buildings.

(i)

Accent colors. Contrasting accent colors on any single façade shall be limited to no more than ten percent of the total wall area for any single façade. If permitted, any exterior lighted bands shall be considered as part of the maximum ten percent of contrasting accent colors.

(j)

Canopy support columns. The support columns for drive under canopies for gasoline pumps shall be made of the same material as the primary building on the property and shall match the trim and accent material. Trim or accent material may account for up to ten percent or 120 square feet, whichever is less, of any facade. Any signage on the canopy shall be counted towards the ten percent accent material maximum, in addition to having to meet signage requirements of this UDC.

(k)

Arcade or structural canopy for retail use. For any multi-tenant commercial development, a covered arcade/structural canopy shall be provided along the front façade of the building. Arcades are covered walkways connected to the principal building. They should be a minimum of five feet in width and designed to provide covered areas for relief from the weather. Different arcade/structural canopy designs may be used for each individual tenant/business within a multi-tenant commercial development, provided that they blend aesthetically with the front façade of the building and are approved by the public development director.

(l)

Roof requirements.

1.

Pitched roofs. Pitched roofs of at least 3:12 are required for one-story buildings and may be required for taller buildings. A combination of flat roof and pitched roof may be acceptable for buildings of two or more stories if the pitched portion of the roof screens the view from the frontage of any flat roof. Arcades, porches, and other features must be designed with pitched roofs.

2.

Mansard roofs. Mansard roofs shall have a maximum pitch of 12:12 with a minimum 12-foot vertical surface length.

3.

Flat roofs. Building materials for flat roofs shall meet the state building code requirements for nonresidential buildings. Exposed metal flashing shall be copper or factory finished sheet metal. If factory finished metal flashing is used, such as standing seam, the color must be subdued to blend with other materials or of a color to simulate weathered copper or bronze. All buildings and structures with flat roofs should include parapet articulation on the front façade(s) of such building or structure. There shall be roof articulations/offsets at a minimum of one per each 125 linear feet of length by a change in the top line of the parapet. Additional articulation may occur at any lesser distance. If the front façade is less than 125 linear feet of length, then a minimum of one roof articulation must be provided.

4.

Canopies. Drive under canopies for gasoline pumps may have flat roofs with vertical or factory formed facing of finished sheet metal.

(Ord. No. 17-003 , § 1, 10-2-2017)