Planning 2018-01-11 Item 4 - TMC 18.54 Tree Regulations Update - Attachment H: Significant Tree Comparison Chart

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SIGNIFICANT TREE SIZE COMPARISON JURISDICTION SIZE OF SIGNIFICANT TREE (in inches) # TREES PERMITTED TO BE REMOVED (outside of environmentally sensitive areas) PERMIT REQUIRED? (outside environmentally sensitive areas) Bothell 8 10% of significant trees to be retained — applies to all new development. Land Clearing permit during development process. Burien 6 Must keep 30% of trees on SF site at time of development No Des Moines 6 Up to 2,000 sq. ft. may be cleared w/out a permit if area is outside a sensitive area. No, if < 2,000 sq. ft. is being cleared & other exemption criteria are met. Kent 6 Retention of trees is regulated at the platting stage with required tree density required per acre and subsequent retention. No restrictions on number of trees that can be removed on a single family lot that was not developed under the current regulations. No Kirkland 6 2 in 12 month period provided: a. There is no active application to develop the site; b. The trees were not required to be retained as part of a previous development of the site; c. Two trees remain on the site. In some cases, tree replacement is required. Yes, type of permit depends of number of trees removed Lake Forest Park 6 2 in 36 -month period Renton 6 Sliding scale depending on size of lot: • Up to 10,000 sq. ft: 2/12 months -max of 4/60 months; • 10,001-20,000 sq. ft. 3/12 months -max of 6/60 month; • Lots > 20,000 sq. ft.: 6/12 months -max of 12/60 month Yes SeaTac 8 -evergreen 12 -deciduous Tree retention applies only to platting proposals No Seattle 6 3 in 12 -month period Yes Tukwila 4 4 in 36 month period No if 4 trees or less are removed in 36 month period. CL Page 1 of 1 W:\\Sharepoint\Long Range Planning\2016-2017 Landscaping and Tree Code Update\Draft Tree Regs\PC Review\Chart-Significant Tree Size Attachment H 1/2/2018 5:48 PM 55