Skip to main content
CityRuleLookup

Colorado Statewide Rule

Colorado Partition Fence Law: Neighbors Split the Line Fence (CRS 35-46-112)

Some RestrictionsApplies statewide across Colorado (2026)

Key Facts

Statute
C.R.S. 35-46-112 & 35-46-113
Each owner builds
One-half of line fence
Lawful fence
3 barbed wires, posts ~20 ft apart
Notice before self-help
30 days, written
Enforcement
Civil suit; lien; sheriff's sale
Last verified: July 31, 2026

Summary

Colorado is a fence-out state: when two owners' agricultural or grazing lands adjoin, each must build and maintain half of the boundary line fence at joint cost. Ignore a neighbor's 30-day repair notice and they can build it and sue you for half.

Where the agriculture or grazing lands of two or more persons adjoin, whether or not such lands are farmed or grazed, it is the duty of the owner of each tract to build one-half of the line fence, such fence to be a lawful fence as described in section 35-46-101.

Full Breakdown

Under C.R.S. § 35-46-112, where the agricultural or grazing lands of two or more persons adjoin, each owner has a duty to build one-half of the line fence, built to the 'lawful fence' standard in § 35-46-101: a three-wire barbed fence with substantial posts about twenty feet apart. Section 35-46-113 splits erection and repair costs equally between the adjoining owners. If a neighbor ignores a 30-day written notice to fix their half, you may repair the whole fence and recover half the cost by civil action. That judgment becomes a lien on the neighbor's land, enforceable by sheriff's sale.

Violations & Penalties

Neglecting your half after a 30-day written notice lets the neighbor build or repair the entire fence and sue for half the cost; the judgment attaches as a lien on your land, enforceable by sheriff's sale.

Frequently Asked Questions

Does my neighbor have to pay for half of our boundary fence in Colorado?
Yes. Under C.R.S. § 35-46-112, adjoining agricultural or grazing owners each owe half the line fence. If you already own a lawful fence and the neighbor occupies the adjoining land, they must pay you half its cash value.
Is Colorado a fence-in or fence-out state?
Fence-out. Under C.R.S. § 35-46-102 you can only recover for livestock trespass if your land was protected by a lawful fence. The burden is on you to fence livestock out, not on the owner to fence them in.

Sources

See something wrong?

Help us keep this page accurate. If you notice an error or outdated information, let us know.