Design Standards—Landscaping and Irrigation | Development Standards
c. In pedestrian district overlays, street perimeter landscaping may be waived provided a site plan, consistent with the applicable adopted area zoning document, is approved that provides street trees and other pedestrian-related amenities; d. Landscaping standards for uses located in a rural town or rural business centers designated by the comprehensive plan may be waived or modified by the director if deemed necessary to maintain the historic character of the area. Where a local or subarea plan with design guidelines has been adopted, the director shall base the landscaping modifications on the policies and guidelines of such plan; e. When an existing structure precludes installation of the total amount of required site perimeter landscaping, such landscaping material shall be incorporated on another portion of the site; f. Single-stemmed deciduous tree species that cannot generally be planted and established in larger sizes may have a caliper of less than one and one-half inches; g. The number of trees and shrubs to be provided in required perimeter and parking area landscaping may be reduced up to 25 percent, subject to approval by the director, when a development retains existing significant trees within required landscaping areas consistent with the provisions of SDC 21.03.060G., Retention standards; h. The number of trees and shrubs to be provided in required perimeter and parking area landscaping may be reduced up to 25 percent when a development uses
landscaping materials consisting of species typically associated with the Puget Sound basin in the following proportions: i. Seventy-five percent of groundcover and shrubs; and
ii. Fifty percent of trees; and
i. The department shall, pursuant to Chapter 2.55 SMC, develop and maintain an advisory listing of trees recommended for new plantings. Such list shall describe their general characteristics and suitability, and provide guidelines for their inclusion within required landscape areas.
9. Landscaping – Plan design, design review, and installation
a. The landscape plan submitted to the department shall be drawn on the same base map as the development plans and shall identify the following:
i. Total landscape area and separate hydrozones;
ii. Landscape materials botanical/common name and applicable size;
iii. Property lines;
iv. Impervious surfaces;
v. Natural or manmade water features or bodies
vi. Existing or proposed structures, fences, and retaining walls;
Effective | January 1, 2022
Title 21: Sammamish Development Code | 311
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