Boise fence setbacks align with zoning district setbacks for structures over 6 feet. Fences 6 feet and under have no setback requirement but must respect the 30-foot corner sight triangle and 10-foot clear vision area at driveways under BCC 11-04.
Residential fences 6 feet and under in Boise may be placed directly on or adjacent to the property line. Fences exceeding 6 feet are treated as structures and must meet the underlying zoning district setbacks: typically 20 feet front, 5 feet side, and 15 feet rear in R-1C zones. Corner lots require a 30-foot sight distance triangle measured from the intersection of property lines where nothing over 3 feet may obstruct sight. Driveway clear vision triangles of 10 feet by 10 feet apply where a driveway meets the sidewalk to protect pedestrians and cyclists on the adjacent greenbelt or bike lane. Foothills properties with private access roads have additional Fire Code Appendix D access requirements for emergency vehicle turning radius that can affect fence gate placement. Always verify setbacks with PDS before construction in ACHD (Ada County Highway District) right-of-way areas.
Contact your local code enforcement office for specific penalty information.
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