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Street Use Home
Urban Forestry
Arborist Unit
Landscape Architect Unit
Field Operations Unit
Street Tree Management Plan
206-684-TREE (8733)
Street Tree Planting Procedures
Urban Forestry Permits
Tree Service Providers
Tree Pruning Guide
Seasonal Tree Care
Utility/Tree Inspections
Heritage Tree Program
Seattle Tree Inventory
Urban Forestry Class and Resources

Urban Forestry

The New Street Tree Manual is here!

A new resource is available—a Street Tree Manual providing a one-stop tree care reference for residents, developers, contractors and tree service providers. Click this link to open the PDF, or contact us to see a printed copy.

The manual puts into a descriptive form the requirements and standards established by the Street Tree Ordinance—which was updated in 2013 for the first time in 50 years.

Questions about the Street Tree Manual or the Street Tree Ordinance? Contact us at:

206-684-TREE (8733) |

The Seattle Department of Transportation (SDOT) Urban Forestry section’s mission is to administer, maintain, protect, and expand the City's urban landscape in the street right-of-way to maximize economic, environmental, safety and aesthetic benefits.

Our goals are to: Preserve and improve Seattle’s trees through effective regulation and enforcement, street tree inventorying, maintenance and replacement to ensure the health, preservation, and expansion of Seattle’s urban forest. With funds provided by the Levy to Move Seattle passed by voters in 2015, we’ve expanded our ability protect, maintain, and preserve tree canopy.  We encourage community members to plant new street trees and are available to collaborate on all types of projects to ensure codes required for tree planting and landscaping in the right-of-way are met.  

Urban Forestry provides the following services:

  • Street tree planting, pruning and removal permits
  • Street tree inspections
  • Street tree planting
  • Street tree maintenance
  • Landscape maintenance
  • Landscape architectural design
  • Landscape design review
  • Inspection related to tree preservation and protection at construction sites

Urban Forestry consists of the City Arborist Unit, the Landscape Architect Unit, and the Field Operations Unit.

Darren Morgan, Manager
Seattle Transportation
Urban Forestry
206-684-TREE (8733)
Arborist Unit

Tree Planting Permits
Utility/Tree Inspections
Landscape Architecture Unit

Tree Protection Ordinance
Tree Protection and Development
Code Required Tree Protection

Field Operations Unit
Tree Maintenance
Landscape Maintenance




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