Washington County, UT Fence Regulations: Height Limits (2026)

Section 10-15B-3 sets the baseline fence height rule for interior lots in unincorporated Washington County: a fence, wall, or hedge along side and rear property lines can rise to six feet, but anything placed in the front yard setback area is capped at three feet so it does not obscure sightlines from driveways and the street. Where a fence sits on the property line between two lots with different grades, § 10-15B-3(C) allows the fence to reach the maximum height permitted on either side, but the combined fence-and-berm height can never exceed ten feet on either side of the line, measured from each side's own finished grade, and the ground cannot be bermed up just to gain height.

Corner lots follow a separate rule at § 10-15B-4: a six-foot fence is allowed along the rear and interior side lot line, but no sight-obscuring fence or wall can go in the front yard setback or the portion of the street-side yard that overlaps it, and no obstruction taller than three feet can sit inside the 30-foot clear-view triangle formed where the two street property lines meet. A non-sight-obscuring fence, if the zone allows it, can still reach six feet within a street-side setback, provided it is not altered with plants or materials that block the view through it.

Separate height allowances apply outside § 10-15B-3: recreational fences enclosing a tennis court, pickleball court, or pool can run to 12 feet under § 10-15B-6(A), and fences required between commercial and residential zones under § 10-15B-7 must be six feet, sight-obscuring, dropping to three feet in the front setback.