Sammamish Unified Development Code

Trees | Environment & Sustainability

approval may be granted for one of the following reasons: i. Thinning a heavily wooded area where remaining trees may benefit from the thinning and the lot’s forested look, value, or function is maintained;

unconstrained by environmentally critical areas and associated buffers.

d. Replacement trees shall be planted as provided in SDC 21.03.060J., Tree replacement standards. e. Trees previously designated for protection or located within a designated open space tract or environmentally critical area tract may not be removed unless they are determined to be hazardous. Any trees qualifying for an exemption under SDC 21.03.060E. are not included in the limits established by this section. 2. Development Proposals on R-8, R-12, R-18, O, NB and CB Zoned Lots. A new primary residence or a type 2, 3 or 4 development proposal on R-8, R-12, R-18, O, NB and CB zoned lots must obtain a land use permit or approval prior to removing any significant tree located on the lot. a. Regardless of the zoning designation, erosion hazard areas and areas within the erosion hazards near sensitive water bodies overlay that drain to the no-disturbance area, as well as Pine Lake and Beaver Lake drainage sub-basins as depicted on maps created and maintained by the City shall retain 50 percent of the significant trees within areas unconstrained by wetlands, streams, landslide hazard areas, and associated buffers. b. A minimum of 25 percent of the significant trees shall be retained within R-8, R-12 and R-18 zoned lots in areas unconstrained by environmentally critical areas and associated buffers.

ii. Maintaining the lot’s landscaped areas; or

iii. Installing or maintaining utilities or sources of renewable energy, such as solar panels.

G. Retention standards

1. Development Proposals on R-1, R-4 and R-6 Zoned Lots. A new primary residence or a type 2, 3 or 4 development proposal on R-1, R-4 and R-6 zoned lots must obtain a land use permit or approval prior to removing any significant tree located on the lot. a. Regardless of the zoning designation, erosion hazard areas and areas within the erosion hazards near sensitive water bodies overlay that drain to the no-disturbance area, as well as Pine Lake and Beaver Lake drainage sub-basins as depicted on maps created and maintained by the City shall retain 50 percent of the significant trees within areas unconstrained by wetlands, streams, landslide hazard areas, and associated buffers. b. R-1 Zoned Lots. A minimum of 50 percent of the significant trees shall be retained within areas unconstrained by wetlands, streams, landslide hazard areas, and associated buffers. c. R-4 and R-6 Zoned Lots. A minimum of 35 percent of the significant trees shall be retained within areas

c. There is no minimum retention requirement for significant trees located within O, NB, and CB zoned

Effective | January 1, 2022

Title 21: Sammamish Development Code | 169

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