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Chapter 3
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Right-of-Way Improvement Requirements
3.1.1b Existing Streets, Non-Arterial Minimum Right-of Way Width Requirements
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Low Density Residential
Zone Standard Street
Right-of-Way1
Minimum Street
Right-of-Way2
Standard Roadway Width 3
SF, LDT, L1 , NC1 50 feet 40 feet 25 feet
Mid-Density Residential and Mixed Commercial/ Residential
Zone Standard Street
Right-of-Way1
Minimum Street
Right-of-Way2
Standard Roadway Width 3
L2, NC2-30, NC2-40 60 feet 40 feet 32 feet
L3, L4, NC2-65 60 feet 52 feet 32 feet
High-Density Residential and Mixed Commercial/Residential and Industrial 1
Zone Standard Street
Right-of-Way1
Minimum Street
Right-of-Way2
Standard Roadway Width 3
NC3, MR, HR 60 feet 52 feet 36 feet
C1, C2, IB, IC 66 feet 52 feet 40 feet
IG1, IG2 66 feet 56 feet 40 feet

1 If a project is on a block which is split into more than one land use zone category, the zone category with the most frontage determines the minimum width required. If the land use categories have equal frontage, the one with the greater requirement shall be used to determine the minimum street width.

2If the street has greater than the minimum right-of-way width the applicant is required to add a sidewalk, drainage and landscaping, per the site specific zoning. Minimum right-of-way width requirements are identified in Chapter 23.53.015 of the Seattle Municipal Code. Pedestrian access and circulation requirements are identified in the sidewalk code changes.

3 This width is the standard curb-to-curb design width of a fully improved street. If full street improvements are not constructed, the resultant interim pavement width may be less than this standard.

Where the existing right of way width is less than the width shown in the table above a right of way dedication or setback and No-Protest Agreement is required.

 
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Detailed Table of Contents
Chapter 3
Right-of-Way Improvement Requirements
3.1 Overview of Requirements from the Land Use Code (Ch. 23.53 & 23.22)
3.2 Requirements for Streets, Alleys and Easements
3.3 Contact Information
   
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