Title 17C Land Use Standards
Chapter 17C.200 Landscaping and Screening
Sites shall be planted in accordance with the following standards:
A planting strip of five feet in width shall be provided along all other property lines except where buildings are built with no setback from the property line or where a parking lot adjoins another parking lot. In CC zoned properties, the planting strip shall be eight feet in width to enhance the screening between CC and Residential zoned properties. The type of planting in this strip varies depending upon the zone designation of the properties sharing the property line (with or without an intervening alley) as indicated in the matrix below. Where properties with dissimilar zones share a common boundary, the property with the more intense zone shall determine the required type of planting and the planting width. The owners of adjacent properties may agree to consolidate their perimeter plantings along shared boundaries. For example, instead of each property providing a five-foot wide planting strip, adjacent property owners could provide a single, shared five-foot wide planting strip, so long as the required planting type, as indicated in the matrix below, is provided. Types of landscaping to be provided in planting strips alongside and rear property lines:
ADJACENT PROPERTY ZONE
SUBJECT PROPERTY ZONE (vertical)
LI, PI 
 In the industrial zones, all uses in the commercial categories (see chapter 17C.190 SMC, Use Category Descriptions, Article III, Commercial Categories) are subject to the standards for uses in the general commercial (GC) zone.
The planning director shall have the discretion to waive or reduce the requirements of subsections (A)(1) and (B) of this section based on the following factors:
All other portions of a site not covered by structures, hard surfaces, or other prescribed landscaping shall be planted in L3 open area landscaping until the maximum landscape requirement threshold is reached (see SMC 17C.200.080).
To reduce the visual impact of parking lots through landscaped areas, trellises, and/or other architectural features that complement the overall design and character of developments.
This section is subject to the provisions of SMC 17C.120.015, Design Standards Administration.
Interior landscaping consisting of L3 open area landscaping, including trees amounting to at least ten percent of the total area of the paved parking area, excluding required perimeter and street frontage strips. A minimum of one interior tree shall be planted for every six parking spaces.
Tree plantings shall be spaced in order that tree canopies cover a minimum of seventy percent of the entire paved area of the parking lot within fifteen years of project completion. Canopy coverage shall be measured in plan view, and be based on projected mature size of the selected tree species. All individual planting areas within parking lots shall be a minimum of eight feet in width, be at least one hundred fifty square feet in size, and in addition to the required trees, shall be planted with a living groundcover. See the “Landscape Plants for the Inland Northwest” issued by the Washington State University cooperative extension and the U.S. department of agriculture, available from the City planning services department, for acceptable mature tree size to be used when calculating canopy size.
Surface parking lots must have a solid, decorative concrete or masonry wall adjacent to a complete street and behind a sidewalk. The wall must have a minimum height above the surface of the parking lot of two and one-half feet and a maximum height of three feet. The wall shall screen automobile headlights from surrounding properties. A wrought iron fence may be constructed on top of the wall for a combined wall and fence height of six feet. An area with a minimum width of two feet, measured from the property line, must be provided, landscaped and maintained on the exterior of the required wall. Such walls, fences, and landscaping shall not interfere with the clear view triangle. Pedestrian access through the perimeter wall shall be spaced to provide convenient access between the parking lot and the sidewalk. There shall be a pedestrian access break in the perimeter wall at least every one hundred fifty feet and a minimum of one for every street frontage. Any paving or repaving of a parking lot over one thousand square feet triggers these requirements.
Parking liner walls with plantings contribute to an interesting pedestrian environment. The parking liner wall and screen pictured above is enhanced by larger wall sections near automobile crossing points and a change in sidewalk scoring pattern. Both give cues to pedestrians and drivers.
These shall be integrated with display area lighting and pedestrian amenities.
Items may include elements that improve the health of street trees and plantings, improve storm water management, or artistic features that improve the pedestrian environment. This may include items such as permeable pavers in the pedestrian buffer strip, increased soil volumes for street trees, suspended sidewalks around the street tree to increase the amount of un-compacted soils, and engineered soils to support larger and healthier trees.
Date Passed: Monday, December 2, 2019
Effective Date: Monday, January 20, 2020
ORD C35844 Section 1