Town Center | Development Standards—Landscaping and Irrigation
S. Water use – Irrigation system maintenance
shall be retained subject to the requirements of SDC 21.03.020.
Irrigation systems shall be maintained and inspected annually to assure proper functioning and in compliance with the calculated water budget for the system. Replacement of components shall be of originally specified parts or materials, or their equivalents.
4. All clearing and grading of existing undeveloped properties shall retain significant trees until a tree retention plan is approved through a unified zone development plan (SDC 21.07.120). 5. Trees identified for retention shall be selected, to the extent feasible, subject to the following criteria: a. Trees located within healthy, vegetated groups and stands rather than as isolated trees scattered throughout the site; b. Trees that have a reasonable chance of survival once the site is developed;
T. Tree retention requirements
The following tree retention requirements shall be applied in addition to the applicable requirements of SDC 21.03.070 and SDC 21.03.020: 1. Emergency tree removal to prevent imminent danger or hazard to persons or property shall not be limited by this section or SDC 21.07.070U., Tree protection standards. 2. All new development in the TC-B, TC-C, TC-D, and TC-E zones shall retain significant trees subject to the following standards: a. Within areas unconstrained by environmentally sensitive areas and associated buffers, a minimum of 25 percent of significant trees shall be retained. b. Within environmentally sensitive areas and associated buffers, significant trees and other vegetation shall be retained subject to the requirements of SDC 21.03.020; provided, that trees retained within environmentally sensitive areas and associated buffers may be counted for up to 50 percent of the tree retention requirement in subsection 2.a. of this section. 3. Within environmentally sensitive areas and associated buffers in TC-A zones, significant trees and other vegetation
c. Trees that will not pose a threat to persons or property;
d. Trees that can be incorporated into required landscaping or can be used to screen the site from adjacent properties; e. Trees adjacent to open space, sensitive area buffers or sensitive area tracts;
f. Trees having a significant land stability function; or
g. Trees that meet the definition of “heritage tree.”
6. Subject to review and approval by the director, up to 50 percent of trees identified for retention may be removed, provided replacement trees shall be required pursuant to SDC 21.07.070V., Tree replacement and enforcement.
522 | Title 21: Sammamish Development Code
Effective | January 1, 2022
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