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Island County, Washington Property Laws

Building setbacks, fence regulations, and zoning requirements for Island County.

Building Setbacks in Island County

Setback requirements determine how far structures must be from property lines. These minimums apply to most residential construction in unincorporated Island County.

Front Yard
20 ft
Side Yard
5 ft
Rear Yard
20 ft
Accessory Structures
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Rural Residential (RR) Zone: Front 20 ft; Side yards 12 ft one side and 5 ft other side; Rear 20 ft. Other zones have different requirements (e.g., some commercial zones require 35 ft front, Oak Harbor zones vary). Maximum building height 30-35 ft depending on zone; accessory structures max 15 ft height.

Source: 17.03.070 - Rural Residential (RR) Zone

See Your Property Lines in Island County

Walk your land and see the boundaries appear in AR. Know exactly where setbacks apply.

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Disclaimer: This information is extracted from Island County ordinances for reference only. Regulations vary by zoning district and may have changed. Contact the Island County Planning Department for official guidance before building.

Last updated: May 2026