Trees | Environment & Sustainability
amended, or modified without the written approval of the City of Sammamish. 4. Incentives. The following incentives are available for higher levels of landmark, heritage and significant tree preservation: a. Landmark Trees. The permanent preservation of a landmark tree in conjunction with subsection 1. of this section shall receive retention credit as follows: i. Two hundred percent credit in conjunction with subsections 1.a. through c. of this section. ii. One hundred fifty percent credit in conjunction with subsections 1.d. through f. of this section. To qualify for this incentive, all landmark trees proposed for permanent preservation shall be outside of any environmentally critical area and associated buffer. b. Heritage Trees: The permanent preservation of a heritage tree in conjunction with subsection 1. of this section shall receive retention credit as follows: i. One hundred seventy-five percent credit in conjunction with subsections 1.a. through c. of this section. ii. One hundred twenty-five percent credit in conjunction with subsections 1.d. through f. of this section. To qualify for this incentive, all heritage trees proposed for permanent preservation shall be outside of any environmentally critical area and associated buffer.
c. New subdivisions and short plats proposing a minimum 45 percent permanent preservation of significant trees in conjunction with subsections 1.a. through c. of this section shall receive a 50 percent reduction of required on-site recreation space. To qualify for this incentive, all significant trees proposed for permanent preservation shall be outside of any environmentally critical area and associated buffer. d. New subdivisions and short plats proposing a minimum 40 percent permanent preservation of significant trees in conjunction with subsections 1.a. through c. of this section shall receive a 25 percent reduction of required on-site recreation space. To qualify for this incentive, all significant trees proposed for permanent preservation shall be outside of any environmentally critical area and associated buffer. 5. Protection Measures. To ensure long-term viability of trees identified for protection, permit plans and construction activities shall comply with the following minimum required tree protection: a. All minimum required tree protection measures shall be shown on the tree protection and replacement plan. b. Tree protection barriers shall be installed five feet beyond the drip line of significant trees to be protected prior to any land disturbance. c. Tree protection barriers shall be a minimum of four feet high, constructed of chain link, or polyethylene laminar safety fencing or other material, subject to approval by the director. On large or multiple-project
Effective | January 1, 2022
Title 21: Sammamish Development Code | 171
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