4.8.6. BUILDING MATERIALS.
A. Intent. High quality building materials are promoted to ensure building longevity and architectural interest. Building materials shall provide a sense of human scale and interest, especially on ground floors. Colors shall be carefully chosen with respect to surrounding context.
B. Applicability and Exceptions. Each residential design plan submitted for approval after the Effective Date shall meet the requirements of Sections 146-4.8.6.C and 146-4.8.6.D except as those requirements may be modified by this Subsection B:
1. For any subdivision approved prior to November 1, 2012, where:
a. The average percentage of masonry on the net façade area of all residential dwelling units permitted by the subdivision plat is 30 percent or greater; and
b. At least 50 percent of the total residential dwelling units permitted by the subdivision plat have been built as of November 1, 2012.
Each new residential design plan shall provide that the net façade area of the residential dwelling unit shall be no less than 30 percent masonry. Upon application, the Planning Director may allow, on a case-by-case basis, the percentage of masonry coverage to vary among any residential design plans or the elevations of any residential design plans submitted to the Director for approval; provided, that the minimum average coverage is met in each such submission for the remaining dwelling units within the subdivision.
2. For any subdivision approved prior to November 1, 2012, where:
a. No masonry is included on the net façade area of any residential dwelling unit permitted by the subdivision plat and/or built within the subdivision; and
b. At least 50 percent of the total residential dwelling units permitted by the subdivision plat have been built as of November 1, 2012.
No masonry shall be required in any new residential design plan.
3. The building material requirements for the façades of single-family detached and duplex structures shall not apply to:
a. Any alterations, additions, or repairs to an existing single-family detached or duplex structure; or
b. The rebuilding of any single-family detached or duplex structure not built in conformance with this division that has been damaged or destroyed by fire or natural disaster; provided, that the rebuilt structure contains at least the same amount of masonry as the original.
C. Primary Building Materials.
1. Intense, bright, or fluorescent colors shall not be used as the predominant color on any wall or roof of any primary or accessory structure. These colors may be used as building accent colors, but shall not constitute more than 10 percent of the area of each elevation of a building.
2. Highly reflective glass is prohibited on all façades. Such prohibition shall apply regardless of whether the glass is used in window or spandrels areas.
3. Table 4.8-5 indicates permitted primary exterior building materials for each general building type/zone district. Alternative equivalent material to those listed in Table 4.8-5 may be approved by the Planning Director if the applicant submits the material warranty, durability specifications, sample material, and photographs of the material on structures similar to the proposed structure or development and the Director determines that the materials provide similar durability and visual quality.
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Table 4.8-5 Permitted Primary Exterior Building Materials |
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|---|---|---|---|---|---|
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✓ Blank cell ✓A/B |
= Permitted = Not Permitted = Conditional |
Residential Districts |
Mixed-Use Districts |
Special Purpose Districts |
|
|
Single-Family Detached and Two-Family |
Townhouses and Multifamily |
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|
Architectural Glass |
See. Sections 146-4.8.3.C and D. |
✓ |
✓ |
||
|
Corrugated Metal [1] |
✓A |
||||
|
Composite Wood |
✓ |
||||
|
Detailed Cast Concrete |
✓ |
✓ |
✓ |
||
|
Masonry - Brick |
✓ |
✓ |
✓ |
||
|
Masonry - CMU Block |
✓ |
✓ |
✓ |
||
|
Masonry - Decorative Tile |
✓ |
✓ |
✓ |
||
|
Masonry - Natural Stone |
✓ |
✓ |
✓ |
||
|
Metal Panel |
✓ |
✓ |
✓ |
||
|
Large Cementitious Panels [2] |
✓B |
✓B |
|||
|
Three Coat Stucco |
✓ |
✓ |
✓ |
||
|
Synthetic Stucco |
|||||
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[1] Buildings with corrugated metal as the primary exterior building material shall include wainscoting at least 42 in. high, surfaced in stone, decorative concrete, or brick masonry when facing a view corridor, drainage, public or private space, or right-of-way. [2] Buildings with large cementitious tilt-up panels shall be embossed with reveals that repeat a common pattern that is human scaled. |
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4. In addition to the materials listed in Table 4.8-5 and equivalents permitted under Subsection 3 above, ecologically-based materials may be substituted provided those materials are certified as sustainable materials, such as reclaimed building materials, or are used to create ecological and sustainable building or site features such as living walls, water retention areas, or renewable energy elements may be approved by the Planning Director if the applicant submits the material warranty, durability specifications, sample material, and photographs of the material on structures similar to the proposed structure or development and the Director determines that the materials provide similar durability and visual quality.
5. The following charts illustrate successful applications of the various permitted primary exterior building materials on a variety of building types.
D. Masonry Standards for Single-Family Attached, and Multifamily Residential Dwellings. Masonry standards for single-family attached and multifamily dwellings (other than two-family dwellings), are as indicated in Table 4.8-6 below. Alternative equivalent material to the materials listed in Table 4.8-6 may be approved by the Planning Director if the applicant submits the material warranty, durability specifications, sample material, and photographs of the material on structures similar to the proposed structure or development and the Director determines that the materials provide similar durability and visual quality.
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Table 4.8-6 Masonry Standards for Single-Family Attached and Multifamily |
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|---|---|
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Type of Structure |
Minimum Percentage of Masonry on Net Façade Area (not each elevation) |
|
Single-family attached |
Either: • 50 percent shall be clad in brick or stone; or • 75 percent shall be clad in stucco; or • 75 percent shall be clad in a combination of stucco and brick, or stucco and stone. |
|
Multifamily (excluding two-family) |
Either: • 60 percent (or 30 percent for an Affordable Housing Structure) shall be clad in brick or stone; or • 80 percent (or 40 percent for an Affordable Housing Structure) shall be clad in stucco; or • 80 percent (or 40 percent for an Affordable Housing Structure) shall be clad in a combination of stucco and brick, or stucco and stone. |
(Ord. No. 2019-49 § 1, 08-19-2019)