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Urban Forest Manual

***On November 19, 2024, Tacoma City Council approved the Home In Tacoma zoning and standards package, intended to facilitate more diverse, affordable, and sustainable housing options throughout the city. The new zoning regulations, and new 2025 Urban Forest Manual, take effect on February 1, 2025.***


Included in the zoning and standards package was an update to the Tacoma Municipal Code (TMC), Title 13 Land Use Regulatory Code.  As recommended by the Final Environmental Impact Statement (Final EIS), and the Health Impact Assessment (HIA), Tacoma’s Planning Commission recommended including updates to the landscaping and tree standards within Title 13, to support better environmental and community health outcomes during development.  Specifically, these updates to the Title 13 Land Use Regulatory Code objectives include:

Planting More Trees - Implementing Complete Streets and Urban Forestry policies related to street trees

Planting Better - Optimizing Urban Forest benefits by enhancing plant selection, planting location, standards for plant health, and setback and installation requirements

Enhancing Urban Forest Health - Optimizing Urban Forestry benefits by better insuring health, survival and proper maintenance of trees, shrubs, and other vegetation Providing Incentives and Flexibility - Incorporating flexible code approaches tailored to the needs of differing land uses, while promoting a healthy urban environment Providing an Understandable and Predictable Approach - Increasing the ease of use by providing consistency and clarity, as well as developing the Urban Forest Manual guidance document

 

 

Intent of Landscaping & Tree Requirements

Urban Forest Manual Cover PageThe City’s landscaping requirements are intended to contribute to the aesthetic environment of the City and provide an attractive urban setting to enhance livability and foster economic development. These requirements also provide green spaces that can support the citywide tree canopy goal of 30 percent, support wildlife in the urban environment, and help reduce storm water runoff, filter pollution, and reduce the urban heat island effect. These landscaping requirements also buffer and soften the visual impacts of development, and support the planting, maintenance, and preservation of a stable and sustainable urban forest. 

This Urban Forest Manual and TMC 13.06.090B helps to support this intent by requiring landscaping (trees, shrubs and groundcover) in a flexible way that balances urban density development activities with livability and community health. Landscaping requirements generally apply to new construction and substantial alterations of structures, parking areas, streets, and sidewalks. Minor alterations are exempt from landscaping requirements, except for street tree requirements triggered by off-site improvements. The Urban Forest Manual also contains a range of options intended to provide flexibility while still meeting the intent, as well as incentives for inclusion of desired features like saving mature trees, and planting larger tree species, native plants, and Low Impact Development stormwater facilities.

 

2025 Urban Forest Manual

The Urban Forest Manual (UFM) is a guide created to facilitate the planning, design, installation and maintenance of trees and landscaping required for new development and redevelopment per the Tacoma Municipal Code (TMC) 13.06.090B Landscaping Standards and other applicable portions of the Zoning Code (TMC 13.06). It is intended to be used concurrently with TMC 13.06.090B to ensure the requirements and standards are executed properly.

You can download the ENTIRE URBAN FOREST MANUAL here, as well as download individual chapters and appendices below.

 

A few resources you may find helpful to get you started might include:

- Landscaping and Trees in Urban Residential Districts Overview (Tip Sheet); provides an overview of UR 1, UR2, and UR3 requirements for trees and landscaping
- Chapter 1 – Landscaping Applicability and Types; will help you to determine which landscaping standards may apply to your project
- Appendix 1 – Landscaping Calculations Worksheets; may be useful for you to fill out as you walk through the Urban Forest Manual, and should help you calculate the required landscaping quantities for your development proposal
- Appendix 8 – Urban Residential Landscaping Requirements Summary; provides an overview of Urban Residential requirements for Landscaping
- Appendix 10 – Permit Submittal Checklist; this checklist is a good tool to help you prepare your application submittal for a permit for development.

Before finalizing development plans, visit the Planning and Development Services (PDS) website at www.tacomapermits.org, contact the permit center at (253) 591-5030, or visit them at 747 Market Street on the third floor, to verify that all other applicable City codes and manuals have been met.


If you have questions or concerns about the Urban Forest Manual, please contact Planning and Development Services at (253) 591-5030.

Standard Plans

Planting and Protection 
LS-01 - Street Tree Planting
LS-02 - Street Tree Clearance
LS-03 - Tree Well Dimension
LS-04 - Tree & Shrub Planting on Slopes
LS-05 - Shrub Planting
LS-06 - Groundcover Planting
LS-08 - Tree Protection During Construction
LS-09 - Tree Protection Fencing
LS-10 - Tree Protection Fencing for Trees in Paved Areas
LS-11 - Reusable Tree Protection Fencing for Paved Areas
Soil Amendments
GSI-01b - Option 2 – Amend in Place

GSI-01c - Option 4 – Imported Topsoil

Appendices

Appendix 1 - Landscaping Calculations Worksheets
Appendix 2 - Sample Landscaping Plan
Appendix 3 - Landscape Management Plan (LMP) Template
Appendix 4 - Sample Tree Protection Plan and Sample Arborist Report
Appendix 5 - Tree Protection Zone Sign – General
Appendix 6 - Tree Protection Zone Sign – For Trees in Paved Areas
Appendix 7A - Approved Large Tree List
Appendix 7B - Approved Medium Tree List
Appendix 7C - Approved Small Tree List
Appendix 7D - Prohibited and Not Recommended Tree List
Appendix 8 - Urban Residential Tree Requirements Summary
Appendix 9 - Urban Residential Case Study
Appendix 10 - Plan Submittal Checklist



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