6 rules for unincorporated Sarpy County, Nebraska.
Verified from official government sources
In unincorporated Sarpy County residential fences top out at six feet. Along a front yard or corner sight triangle a barrier must stay at least half-open and under thirty-six inches, and a corner-lot fence facing a side street caps at four feet.
Sarpy County does not require a standalone building permit for an ordinary residential fence, but it must meet the zoning height and setback rules and sit entirely inside your lot. Call Nebraska 811 before digging post holes.
Nebraska is unusual: its division-fence law makes adjoining landowners share a boundary fence in equal parts unless they agree otherwise. It reaches Sarpy County's farmland, and before suing a neighbor who won't pay you must give written notice.
Neb. Rev. Stat. §34-102
each of them shall construct and maintain a just proportion of the division fence between them.
Sarpy County treats a tall retaining wall as a structure. A low landscape wall is routine, but a wall roughly four feet or higher, or one holding back a surcharge load, needs engineered plans and a building permit.
A residential pool or spa in Sarpy County must be enclosed by a barrier at least four feet high with self-closing, self-latching gates. Openings must be too small for a four-inch sphere. It is a life-safety rule, strictly enforced.
Nebraska sets no statewide rule on residential fence materials, so wood, vinyl, chain-link, and wrought iron are all fair game across Sarpy County. Barbed and electric fence read as agricultural and belong on rural acreages, not suburban lots.
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