No particular architectural “style” is required for residential structures. However, the City encourages quality architectural design, with a distinct variation, yet integration to develop a sense and appearance of community. Residences designed with a Southwestern, Mission, or Mediterranean style will respond to the varying temperatures and outdoor living opportunities of the desert. In general, the architecture should consider compatibility with surrounding character, including harmonious building style, form, size, color, material, and roofline. Individual dwelling units should be distinguishable from one another.
A. Façade and Roof Articulation.
1. Thoughtful space planning for interior and exterior areas should also include consideration for the resulting building envelope. Façades and the massing of structures should provide variety, proportion and interest. Long uninterrupted exterior walls should be avoided on all structures. For every 20 lineal feet of an exterior wall, an architectural feature should be integrated. Varying or articulating the façade also increases opportunities for tying the structure to the site through the use of landscape materials. Appropriate textures, a variety of spatial relief, and design accents on building walls can enhance the integration of the building into the neighborhood.
2. Roofline articulation is encouraged for sloped roofs. Parapets and cornices on flat roofs should be finished with architectural moldings that are appropriate in terms of style and proportion. Roof design must be an integral part of the building architecture. Roof articulation may be achieved by changes in plane of no less than 2 feet 6 inches and/or the use of traditional roof forms such as gables, hips, and dormers. Flat roofs and A-frame type roofs are generally discouraged unless appropriate to the overall architectural style being promoted.
B. Varied Structure Design. Much of recent residential design has been dominated by large tract development with a limited number of models and regimented development standards. To avoid this “cookie cutter” look in single-family development, the design of structures should be varied in tract developments to create variety and interest. Differences in massing and design approaches of each adjacent house should be accomplished. Generally, 1 residential design should not be repeated more frequently than each fourth house.
C. Attached Dwellings.
1. Attached single-family dwellings should be designed and located on the lot to enhance their appearance as custom homes.
2. Lengthening the street elevation through the use of walls or other features may frequently be appropriate, can reduce the visual impact of garage doors, and can provide private open space areas screened from traffic and noise.
3. Driveways should be grouped with a separating planting strip to provide clear definition and maximum effective landscape areas.
4. The street portion of garages should have a single-story appearance, while allowing the building to step back in an appropriate architectural transition for 2-story structures. Garages shall be set back from the street sufficiently to allow driveway parking without overhanging the sidewalk; on public streets the minimum setback shall be 20 feet behind the public right-of-way.
D. Scale. Proportion is the essence of good design. The variety and size of massing and shapes designed into a building shall be scaled to one another and shall relate to the use of the structure as a single-family residence.
E. Finish Materials.
1. Finish materials to be used on the façades of structures and garage doors is important in providing a functional and attractive living space. The selection of finish materials should be consistent with a direct outgrowth of the architectural concept for the building. The use of tile roofing materials is particularly appropriate for residences designed in Spanish, Mission, Southwestern, and Mediter-ranean architecture.
2. Materials to be avoided include: metal or aluminum siding and most metal roofs, reflective materials and finishes, and unfinished concrete block. Exposed wood should be properly finished and stained rather than painted to assure maximum life of the coating in the desert environment.
3. Stucco is the predominant finish material on new homes. When applied in new development, the finish texture shall be consistent with the architectural style of the building. For instance, Adobe or Southwestern style architecture will typically have a smooth, hand-finished stucco appearance. A “sack finish” over slumpstone is also an appropriate finish. More conventional home designs will use an “orange peel” finish consistent with the crisp lines of these residences.
F. Vents and Downspouts. Frequently and unnecessarily a functional afterthought are roof and side wall vents, flashings, and downspouts. These and other protrusions from the building envelope should be finished to match the adjacent materials and/or colors. Sidewall vents should be framed in to make them an integral part of the elevation and should be finished (stucco, etc.) consistent with the treatment of the façade. Flashing shall be obscured or coated in a manner that reduces contrast and enhances its compatibility with the adjoining roof or wall treatment.
G. Equipment Screening. Heating, ventilation, and air conditioning (HVAC) or other type of equipment shall be mounted on the side of the structure or on the ground. No roof-mounted equipment shall be permitted. All HVAC and similar equipment must be visually and acoustically screened. Screens shall be designed and constructed to intercept both equipment view and noise. The method of screening must be functionally and architecturally compatible in terms of materials, color, shape, and size. The screening design shall blend with the building design. Where individual equipment is provided, a continuous screen is desirable.
H. Accessory Structures. Accessory structures (guesthouses, cabanas, barns, storage sheds, etc.) shall be designed in a manner that is architecturally compatible with the main structure in terms of design and the use of walls/roofs/trellises, fence/wall connections, and/or landscaping.
I. Garage Doors. In new construction the design and construction of garage doors shall be to integrate these into the walls, rather than flush with the exterior wall. Garage door framing should be kept simple, clean, and with limited adornment. Garage doors shall be steel or aluminum framed and preferably a roll-up type of design. In tract subdivisions, a variety of compatible designs should be used throughout a project to enhance visual interest. The design of the garage door should relate to the particular architectural style selected.
J. Lighting Fixtures/Intensity. Lighting fixtures on single-family homes serve safety and convenience, as security devices, and as integral design elements of the home. Garage-mounted lighting should be carriage-type or equivalent in scale that is consistent with the architectural style and proportions of the home. The use of flood security lighting shall be screened or shielded to avoid spilling onto adjoining properties and streets. In all instances, lighting levels shall be kept to that minimum necessary to illuminate paths and walkways, while providing their security function.
(Prior code § 159.04.050(4); Ord. 787 9-19-23)