Neighbor Fence Rules: Boulder vs Longmont
How do neighbor fence rules rules compare between Boulder, CO and Longmont, CO?
Boulder has fewer restrictions than Longmont.
Boulder, CO
Boulder County
Colorado has no shared fence cost statute. Each property owner is responsible for their own fence. No equivalent to California’s Good Neighbor Fence Act.
View full Boulder rules →Longmont, CO
Boulder County
Longmont Municipal Code requires the finished (smooth) side of any fence to face the public right-of-way, common open space, or other public areas. Property owners — not the City — are responsible for locating property lines. The City does not adjudicate private 'good neighbor' or boundary-line disputes; those are civil matters under Colorado law.
View full Longmont rules →Key Facts Comparison
| Fact | Boulder | Longmont |
|---|---|---|
| Cost Sharing | No state requirement | - |
| Boundary | Agree with neighbor | - |
| Written Agreement | Recommended | - |
| HOA | May dictate fence type | - |
| Finished-Side Rule | - | Smooth side must face public ROW/common area (LMC 15.05.100) |
| Property Line Surveys | - | Owner's responsibility - city does not survey |
| HOA Rules | - | Owner must comply with any applicable HOA standards |
| Cost-Sharing Statute | - | No local cost-sharing ordinance; civil matter under Colorado law |
| Construction Noise | - | LMC 10.20.100 prohibits unreasonable noise |
Highlighted rows indicate differences between cities.
Boulder FAQ
Does my neighbor have to pay half?
No. Colorado has no shared fence cost law. Each owner is responsible for their own fence.
What if the fence is on the property line?
Establish ownership and maintenance responsibility with your neighbor. Get a survey if needed.
Longmont FAQ
Which side of the fence has to face my neighbor?
The finished (smooth) side must face the public right-of-way, common open space, or other public areas. For an interior property-line fence, this is typically interpreted as the smooth side facing outward toward the neighbor or street.
Does Longmont make my neighbor split the cost of a shared fence?
No. Longmont has no municipal cost-sharing ordinance. Boundary-fence cost sharing is a civil matter under Colorado law - you and your neighbor must negotiate it privately or through small-claims court.
Will the city tell me where my property line is?
No. The Fence Building Guide explicitly states 'Property Owners are responsible for locating property lines, the City does not provide this service.' Hire a licensed surveyor or pull your Improvement Location Certificate (ILC).
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