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Kent Zoning & Land Use Guide

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Key Zoning Facts

Planning Department
City of Kent Planning Services(253) 856-5454
Building Code Edition
WA State Building Code (IBC/IRC based)
ADUs Allowed
Yes
Primary District
SR-1 Single-Family Residential (1 acre)
Max Height
35 ft

Kent Zoning Overview

Kent is a major city in Washington with approximately 136,588 residents, located in King County. The city manages land use and development through its zoning code, administered by Planning Services. Kent's zoning divides the municipality into districts regulating permitted uses, building heights, lot sizes, setbacks, and density.

Kent follows the Washington State Building Code (WAC 51-50/51), which is based on the International Building Code (IBC) and International Residential Code (IRC).

Primary Zoning Districts

Kent's zoning code includes several residential districts. The SR-1 district requires a minimum lot size of 1 acre for very low-density development. The SR-4.5 district requires approximately 9,600 square foot lots, and the SR-6 district requires 7,200 square foot lots. The MR-D district permits duplexes and attached housing. All residential districts have a 35-foot height limit.

Commercial activity is served by the CC (Community Commercial), DC (Downtown Commercial), and GC (General Commercial) districts. Industrial uses are provided for in the M1 (Industrial Park) and M2 (General Industrial) districts.

ADU (Accessory Dwelling Unit) Rules

Kent allows ADUs (Accessory Dwelling Units). Under Washington state law HB 1337 (2023), cities are required to allow ADUs, with up to 2 ADUs permitted per lot in most areas. This is a state mandate that applies to all Washington cities. Contact Kent Planning Services for current requirements including size limits, setbacks, and permitting procedures.

Development Process

Development in Kent generally requires obtaining the appropriate permits. The process typically involves:

  1. Zoning Verification — Confirm that your proposed use is permitted in the applicable zoning district
  2. Site Plan Review — For commercial and multi-family projects, submit a site plan for review
  3. Building Permit — Apply for a building permit with construction documents
  4. Inspections — Schedule required inspections during construction
  5. Certificate of Occupancy — Obtain final approval before occupying the structure

For projects that do not conform to existing zoning, property owners may need to seek a variance, special exception, or rezoning.

Key Considerations

Before starting any development project in Kent, property owners should:

  • Verify the zoning classification of their property
  • Review setback, height, and lot coverage requirements for their specific district
  • Check for any overlay districts or special regulations
  • Determine if the property is in a flood zone using FEMA's flood map service
  • Confirm whether HOA covenants or deed restrictions apply
  • Contact Planning Services at (253) 856-5454 for pre-application guidance

Disclaimer: This guide provides general information about zoning in Kent and should not be relied upon as legal advice. Zoning codes are subject to change. Always verify current regulations with the City of Kent or the municipal code before making development decisions.

Regulatory Layers That Apply in Kent

Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.

Federal

State — Washington

  • Building Code: WA State Building Code (WAC 51-50/51)
  • State ADU Override: Yes (WA HB 1337 (2023) requires cities to allow ADUs; 2 ADUs per lot in most areas)
View Washington zoning overview

County — King County

  • Role: County-level property records, tax assessment, unincorporated area planning

City / Municipal

The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.

Overlay Districts

No overlay districts identified.

Private Restrictions

  • HOA / CC&Rs common: Yes
  • Check HOA CC&Rs and deed restrictions for additional requirements.

Primary Zoning Districts

SR-1Single-Family Residential (1 acre)
Min Lot
1 acre
Max Height
35 ft
Front Setback
30 ft
Side Setback
10 ft
Rear Setback
25 ft
SR-4.5Single-Family Residential 4.5
Min Lot
9,600 sq ft
Max Height
35 ft
Front Setback
20 ft
Side Setback
5 ft
Rear Setback
25 ft
SR-6Single-Family Residential 6
Min Lot
7,200 sq ft
Max Height
35 ft
Front Setback
20 ft
Side Setback
5 ft
Rear Setback
25 ft
MR-DMulti-Family Residential Duplex
Min Lot
Varies
Max Height
35 ft
Front Setback
20 ft
Side Setback
5 ft
Rear Setback
25 ft
CCCommunity Commercial
Min Lot
Varies
Max Height
Varies
Front Setback
Varies
Side Setback
Varies
Rear Setback
Varies
DCDowntown Commercial
Min Lot
Varies
Max Height
Varies
Front Setback
Varies
Side Setback
Varies
Rear Setback
Varies
GCGeneral Commercial
Min Lot
Varies
Max Height
Varies
Front Setback
Varies
Side Setback
Varies
Rear Setback
Varies
M1Industrial Park
Min Lot
Varies
Max Height
Varies
Front Setback
Varies
Side Setback
Varies
Rear Setback
Varies
M2General Industrial
Min Lot
Varies
Max Height
Varies
Front Setback
Varies
Side Setback
Varies
Rear Setback
Varies

ADU Rules in Kent

ADUs:Allowed

Permit Costs & Timelines

Permit Costs & Timelines

Specific permit fee schedules for Kent are available from the local planning department. Fees vary based on project type, scope, and valuation.

Check Kent permit fees →

Official Sources

Frequently Asked Questions

How do I find the zoning for my property in Kent?
Contact Kent Planning Services at (253) 856-5454 or visit kentwa.gov. You can also use the city's GIS mapping tool to look up your property's zoning.
What building code does Kent follow?
Kent follows the Washington State Building Code (WAC 51-50/51), which is based on the International Building Code (IBC) and International Residential Code (IRC).
Do I need a permit for home improvements in Kent?
Most structural modifications, additions, and changes of use require a building permit. Contact Kent Planning Services at (253) 856-5454 for specific requirements.
Can I build an ADU (Accessory Dwelling Unit) in Kent?
Yes. Washington state law (HB 1337, 2023) requires cities to allow ADUs. Kent permits up to 2 ADUs per lot. Contact Planning Services for current requirements.