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Thurston County, Washington Property Laws

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

Building Setbacks in Thurston County

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

Front Yard
20 ft
Side Yard
5 ft
Rear Yard
15 ft
Accessory Structures
Contact county

Garages facing street: 16 ft minimum. Front yard on flanking street: 10 ft. Accessory buildings use same setbacks as primary structure. Data from Low Density Residential District.

Source: 21.12.050

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

Last updated: May 2026