Sammamish Unified Development Code

Environment & Sustainability | Environmentally Critical Areas

located to provide additional protection to nearby wetlands; iii. Clearing and grading activity from October 1st through April 30th shall meet the provisions of SDC 21.03.070L.4. wherever not already applicable; iv. All R-1 zoned properties within wetland management areas, as identified in the East Lake Sammamish Basin and Nonpoint Action Plan, shall retain native vegetation, or revegetate with trees to meet the following standards: a) Fifty percent of the site area shall be used to retain trees or revegetate with trees; b) Retained vegetation shall be located primarily within the 50 percent open space area required by SDC 21.04.030.C; c) Retained vegetation shall consist primarily of trees with 0.0096 significant trees per square foot; d) Areas revegetated shall provide 0.012 trees per square foot. Planted trees shall be planted primarily in the required open space area and shall be of a caliper or height approved by the director; e) The provisions of SDC 21.03.020.Y.6.c.iv shall not apply to the Sammamish Town Center Study Area as identified in Ordinance O2005-185; and

v. The director may, based upon review and approval of a critical areas special study, modify the provisions of this chapter to allow for: a) The installation of site access; provided, that the applicant shall limit impervious surfaces to the minimum required to grant access; or b) Development using low impact development techniques to achieve standards adopted by the City that will demonstrably minimize development impacts consistent with subsections 3.a. through c. of this section.

Z. Fish and wildlife habitat conservation areas

1. Fish and wildlife habitat conservation areas – Development standards A development proposal that includes a fish and wildlife habitat conservation area or buffer shall meet the following requirements: a. When appropriate due to the type of habitat or species present or the project area conditions, the director may require a critical areas study that includes a habitat management plan consistent with the latest guidance from the Department of Fish and Wildlife. If the habitat conservation area is also classified as a stream, lake or wetland, then the stream, lake or wetland protection standards shall apply and habitat management shall be addressed as part of the stream, lake or wetland review; provided, that the City may impose additional requirements when necessary to provide for protection

108 | Title 21: Sammamish Development Code

Effective | January 1, 2022

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