Chapter 18.80


18.80.010    Purpose.

18.80.020    Permitted uses.

18.80.030    Conditional uses.

18.80.040    Setbacks requirements.

18.80.050    Lot coverage.

18.80.060    Architectural standards.

18.80.070    Development standards.

18.80.080    Parking areas.

18.80.090    Uses within buildings.

18.80.100    Outside storage.

18.80.110    Extended hours.

18.80.010 Purpose.

The professional office (C-PO) zone is established to provide an area for professional and business offices, nonretail services with business hours consistent with those of contiguous property. Uses not included for consideration of the C-PO zone include: merchandising, warehousing, manufacturing, retail services and similar uses. Developments adjacent to commercial zones shall act to buffer less dense residential development or districts.

The general area for this zone shall be that which is defined as the business transition district in the adopted Riverton City commercial district master plan. [Ord. 8-17-99-1 § 1 (Exh. A). Code 1997 § 12-275-005.]

18.80.020 Permitted uses.

The following uses are permitted in the C-PO zone; provided, that the regulations and intent of this zone are adhered to:

(1) Business, professional, and financial services without drive-through.

(2) Medical and dental offices.

(3) Recreation or fitness center, health club.

(4) Other uses as per RCC 18.90.010, Table of commercial uses. [Ord. 8-17-99-1 § 1 (Exh. A). Code 1997 § 12-275-010.]

18.80.030 Conditional uses.

(1) Artist and related services.

(2) Businesses with extended hours, as outlined in this chapter.

(3) Banking services with drive-through.

(4) Day care.

(5) Photography, portrait or commercial.

(6) Government service.

(7) Research and development/business park.

(8) Retail commercial related to professional uses (less than 15 percent of total site, and located within an office building).

(9) Restaurant, sit down, as part of an office complex.

(10) Other uses as per RCC 18.90.010, Table of commercial uses. [Ord. 8-17-99-1 § 1 (Exh. A). Code 1997 § 12-275-015.]

18.80.040 Setbacks requirements.

(1) Adjacent to Public Streets. All buildings shall be set back at least 30 feet from all front property lines.

(2) Side Yard Setbacks. When located adjacent to a residential district (excepting recognizable holding zones for future commercial development established under the Riverton City general plan), side yard setbacks shall be a minimum of 20 feet, otherwise the setbacks shall be a minimum of 10 feet between buildings of compatible land use.

(3) Rear Yard Setbacks. Where adjacent to residential zones, the minimum rear yard setback shall be one foot for every one foot in building height. However, there shall be a minimum setback of 15 feet, unless an access lane is planned, in which case, a minimum of 22 feet is required.

(4) Setbacks shall be measured to the foundation. [Amended during 2011 recodification; Ord. 9-2-03-2 § 1; Ord. 8-17-99-1 § 1 (Exh. A). Code 1997 § 12-275-020.]

18.80.050 Lot coverage.

(1) Building Pad Coverage. Commercial lots in the C-PO zone shall have a maximum coverage of 35 percent.

(2) Open Space. Each commercial site in the C-PO zone shall contain a minimum of 20 percent landscaped open space within property boundaries. [Ord. 8-17-99-1 § 1 (Exh. A). Code 1997 § 12-275-025.]

18.80.060 Architectural standards.

(1) Turn-of-the-Century. The following are encouraged features for all commercial buildings in the C-PO zone. A minimum of three turn-of-the-century features shall be used in all developments. However, developments are encouraged to use as many of these features as possible. Other acceptable features not listed herein can be found in the architectural guidelines of the Riverton City commercial district master plan.

(a) Symmetrical building design.

(b) High pitched roofs.

(c) Arched doorways and windows.

(d) Decorative block or brick quoins.

(e) Columns, either brick, rounded wood or neo-classical.

(f) Clock towers and other vertical features.

(g) Keystones over doorways or windows.

(h) Decorative wood window shutters.

(i) Brick accent walls.

(j) Other features as approved by the city council after recommendation by the planning commission.

(2) Building Height. Buildings shall not exceed two stories or 35 feet in height, whichever is less, except where adjacent to a regional transportation corridor where buildings may not exceed four stories or 80 feet in height.

(3) Bulk. Commercial buildings shall be encouraged to be designed with architectural wall variations at least every 50 feet in linear width. Variations could imply an undulation in wall surface or additional architectural elements that break up the large surface into smaller sections.

(4) Roof.

(a) Roofline.

(i) Parapet Walls. Parapet walls may be constructed in the C-PO zone. Parapet walls must be solid and conform to the building materials and architecture of the overall building.

(ii) Height Variation. Parapet walls may not span more than 50 feet without variation in height or depth.

(iii) Rooftop Mechanical Equipment. All rooftop mechanical equipment shall be screened from view at the closest edge of adjacent public rights-of-way by parapet walls or other architectural elements as approved by the planning commission.

(b) Roof Materials. Appropriate roofing materials shall be evaluated by the planning department. However, wood shingles are not permitted.

(5) Exterior Surfaces.

(a) Protected Lower Wall. The lower wall shall be at least one-third the height of the first story. This lower portion of the wall may consist of brick, tile, or decorative concrete. Entryways that extend to the floor may be excluded from this requirement.

(b) Upper Wall Materials. The remaining portions of the exterior building may consist of glass, brick, stucco, and treated wood. However, not more than 40 percent of the building’s exterior wall surface may be glass.

(c) Color Palette. Exterior wall surfaces shall be consistent with light earth tones and rich brick tones to provide a campus atmosphere. [Ord. 17-08 § 1 (Exh. A); Ord. 8-17-99-1 § 1 (Exh. A). Code 1997 § 12-275-030.]

18.80.070 Development standards.

(1) Site Development.

(a) Building Arrangement. The site plan shall be designed such that the parking is located to the side and/or rear of the buildings. A site plan containing several buildings shall be arranged symmetrically around courtyards when possible.

(b) Site Detail – Walkways, Courtyards and Plazas. Materials for walks, courtyards, and plazas shall be related to the materials of adjacent buildings and shall be a non-skid finish. Design shall encourage comfortable and safe pedestrian use, including landscaping, seating areas, and lighting as according to the adopted Riverton City lighting standards.

(2) Minimum Lot Size. Development within the C-PO zone shall not be less than one-half acre in size, unless it is a pad site included as part of a larger development. Each parcel shall also be of sufficient size to assure compliance with the city’s off-street parking, landscaping, and site plan requirements.

The city may deny a commercial use on property where insufficient lot size or lot shape is such that it creates illogical traffic circulation, or is not conducive to the intent of this title. The city will encourage the consolidation of lots for commercial uses where odd-shaped and insufficient-sized lots exist.

(3) Streetscape. The public right-of-way, which includes the back of curb, park strip, and sidewalk, shall be designed with a straight sidewalk in the C-PO zone. Within the park strip, one-and-one-half-inch caliper trees shall be planted every 25 feet on center according to the streetscape master plan. Behind the sidewalk, the landscaping plan is encouraged to include berms that rise one foot over every three feet in width.

(4) Buffering Between Noncompatible Land Uses. Between noncompatible land uses, a minimum of six-foot masonry wall and seven feet of landscaping shall be installed. Businesses with a rear loading dock shall have an eight-foot masonry wall plus 10 feet of landscaping. Special considerations may be made when the rear or side yard is adjacent to compatible or future commercial holding zones. The landscaped strip shall include a combination of trees and shrubs that, along with the fence, shall maintain proper screening from adjacent residential uses. Unless otherwise specified by the city council as part of site plan approval, no land disturbance or construction not associated with placement and installation of fencing shall be allowed prior to installation of fencing required by ordinance or by action of the city council. [Ord. 09-07 § 1; Ord. 8-17-99-1 § 1 (Exh. A). Code 1997 § 12-275-035.]

18.80.080 Parking areas.

(1) Arrangement. Parking shall be arranged for convenient access, secured visibility, but also contained by buildings and landscaping. The site plan shall be designed to encourage parking locations to be on the side and/or rear of the buildings, except where adjacent to a regional transportation corridor. In this situation, to encourage a campus atmosphere, parking may be located on all sides of buildings. Parking and building arrangements shall avoid a strip mall design. A site plan containing several buildings shall be required to group parking lots symmetrically around courtyards when possible.

(2) Pedestrian Access. Parking lots containing more than 150 spaces must install safe, unobstructed pedestrian paths leading to the store frontage.

(3) Shade. Parking lots shall have a minimum shade canopy of 20 percent at point of mature tree growth. Planters for trees shall be a minimum of five feet by five feet. Planter areas may be counted toward the required open space.

(4) Landscaping. Landscaping medians and borders shall be used to direct circulation.

(5) Building Protection. A store front and store access shall not be blocked by parked cars. A minimum of 10 feet shall be required to separate any exterior building wall from parking areas. [Ord. 8-17-99-1 § 1 (Exh. A). Code 1997 § 12-275-040.]

18.80.090 Uses within buildings.

All uses established in the C-PO zone shall be conducted entirely within a fully enclosed approved building except those uses deemed by the city council in consideration of the prior recommendation of the planning commission to be customarily and appropriately conducted in the open. [Ord. 8-17-99-1 § 1 (Exh. A). Code 1997 § 12-275-045.]

18.80.100 Outside storage.

Outside storage of any goods or materials in the C-PO zone is prohibited, except those uses deemed by the city council in consideration of the prior recommendation of the planning commission to be customarily and appropriately conducted in the open. [Ord. 8-17-99-1 § 1 (Exh. A). Code 1997 § 12-275-050.]

18.80.110 Extended hours.

Any commercial use within 250 feet of a residentially zoned district shall conduct regular hours of operation between 6:00 a.m. and 10:00 p.m. [Ord. 8-17-99-1 § 1 (Exh. A). Code 1997 § 12-275-055.]