5-7(E)(1)(b) Acceptable wall materials include, but are not limited to, concrete masonry unit (CMU) blocks or other structural materials; stabilized adobe; split face blocks; slump blocks; bricks; stone; glass blocks; curved interlock blocks; wood; tubular steel; wrought iron bars; chain link fencing; other grill work; or a combination of these materials, with the following exceptions.
1. Exposed flat-faced CMU blocks shall not constitute more than 50 percent of any wall facing a public street or City park or trail.
2. Except in the R-A, R-1, NR-LM, or NR-GM zone districts, chain link fencing (with or without slats) shall not be allowed on any portion of a site visible from a public street, City park or trail, Major Public Open Space, or major arroyo. Chain link fencing is allowed as temporary security fencing during active construction in any zone district.
1. In or adjacent to any Residential zone district, such materials are prohibited, except that critical infrastructure facilities are exempt from this regulation.
2. In or adjacent to any Mixed-use zone district, such materials are prohibited, except that critical infrastructure facilities are exempt from this regulation.
3. In Non-residential zone districts, such materials are allowed on street-facing walls that meet all of the following criteria. (See figure below.)
a. The wall is at least 6 feet in height.
b. The wall is set back at least 5 feet. If any portion of the sidewalk is within the lot line, the setback shall be measured from the edge of the sidewalk closest to the wall.
c. The wall is not adjacent to any Residential or Mixed-use zone district, where Subsections 1 and 2 above apply.
d. The wall is not visible from a City park or trail.
e. The wall is not visible from Major Public Open Space.
Portions of walls that obtain approval for a wall that exceeds the maximum height limits in Subsection 14-16-5-7(D) (Maximum Wall Height) or are required to exceed those limits and that face any public street, City park or trail, Major Public Open Space, or major arroyo, shall incorporate at least 1 of the following features to break up the massing of the wall. (See figure below for illustrations of each option).
Vertical pilasters with a minimum projection of 2 inches from the public side of the wall surface at intervals of no more than 20 feet in length.
Decorative features, such as columns with a minimum projection of 4 inches from the public side of the wall surface at intervals of no more than 60 feet in length.
Offset in wall alignment of at least 16 inches, spaced so that no more than 3 consecutive lots have the same wall alignment.
Curvilinear alignments with a minimum distance of 4 feet between the outer surfaces of the wall. The outermost point of each curve shall have intervals no greater than 80 feet.
Terracing of walls with a minimum horizontal distance of 4 feet separating the vertical height segments.
Any portions of a wall over 3 feet facing a public street, City park or trail, Major Public Open Space, or major arroyo shall comply with at least 1 of the following options. (See figure below for illustrations of each option).
Openings distributed throughout the length of the wall equal to at least 5 percent of the wall surface, constructed into the surface or created by using see-through pattern blocks, tubular steel or wrought iron bars, wood, or other grillwork.
Variation in wall height at intervals of at least every 20 feet along the length of the wall. The normal stepping of the wall to accommodate grade change does not satisfy this requirement.
Use of a second and visually contrasting material, texture, or color along the length of the wall on at least 20 percent of its surface.
A continuous overhang cap along the length of the wall that projects at least 2 inches from the public side of the wall surface.
A variety of living shrubs, trees, and/or vines covering or overhanging at least 1/3 of the length of the wall in conjunction with a streetscape/landscape maintenance agreement between the City and the adjoining property owner and/or community association as part of a subdivision approval.
All walls other than retaining walls adjacent to a major arroyo or any Major Public Open Space must comply with the following standards, in addition to all other applicable standards in this Section 14-16-5-7. If any of the following standards conflict with another wall standard in this IDO, the standard in this Subsection 14-16-5-7(E)(4) shall prevail.
1. View fencing of at most 50 percent opacity constructed of wood, painted or coated pipe, wrought iron, or smooth wire pasture fence material. Where allowed, chain-link fencing shall be accompanied by a vegetative screen with a mature height at least as tall as the fence and with at most 75 percent opacity, planted on the public side of the fence but within the lot line containing the proposed development.
2. Opaque walls of 4 feet or less, combined with view fencing as described in Subsection 1 above, with a combined height not to exceed the maximum wall height in Table 5-7-1.
3. Where allowed, opaque walls shall be constructed of wood, stucco over CMU blocks, stained concrete block, stone, split-faced or fluted block, or adobe. Exposed CMU block walls are prohibited. Predominant materials shall be earth tone in color, with a Light Reflective Value (LRV) ranging from 20 percent to 50 percent. This middle range of reflectance is intended to avoid very light and very dark colors.
5-7(E)(4)(b) Where walls are allowed to be higher than 4 feet pursuant to Table 5-7-1, the following standards apply.
1. Opaque walls over 4 feet in height are allowed adjacent to arroyos only in any Residential zone district.
2. Opaque walls may be no more than 4 feet tall, combined with 1 of the fencing types described in Subsection (a)1 above, with a combined height not to exceed the maximum wall height in Table 5-7-1.
3. Each wall over 4 feet tall shall include a horizontal offset of at least 16 inches every 100 feet.
1. In any zone district, 1 screening wall with higher than 10 percent opacity may be constructed parallel to the lot line abutting the Petroglyph National Monument, subject to all of the following requirements.
a. The wall is not located within the minimum building setbacks required by the zone district.
b. The wall is no more than 20 feet long or up to 50 percent of the lot width, whichever is less.
c. Wall materials shall be the same as or complement the primary building and shall be constructed of earth tone materials with an LRV ranging from 20 percent to 50 percent. This middle range of reflectance is intended to avoid very light and very dark colors.
2. In any Residential zone district, on lots greater than 10,000 square feet, courtyard walls with higher than 10 percent opacity are allowed to be constructed parallel to the lot line abutting the Petroglyph National Monument that meet all of the following requirements.
a. Walls forming the courtyard are attached to the primary building.
b. Walls are not located within the minimum setbacks required by the zone district.
c. Wall materials shall be the same or complement the primary building and shall be constructed of earth-tone materials an LRV ranging from 20 percent to 50 percent. This middle range of reflectance is intended to avoid very light and very dark colors.
d. The total area of enclosed spaces on a lot (e.g. any combination of patio, pool enclosure, or courtyard) shall be limited to 1,000 square feet or up to 50 percent of the primary building square footage, whichever is greater, up to a maximum of 2,000 square feet.
3. For single-family and two-family detached dwellings abutting a trail on the Petroglyph National Monument, an opaque perimeter wall is allowed but may only be constructed of stucco over CMU blocks, coyote fencing, or stone per height requirements in Subsection 14-16-5-7(D) (Maximum Wall Height).