Boise, ID Fence Regulations: Neighbor Fence Rules (2026)
Key Facts
- Placement default
- Entirely on owner's own property
- On-the-line exception
- Requires abutting owner's agreement
- Max height, side/rear
- 72 inches (6 feet)
- Maintenance duty
- Structurally sound, property owner
Summary
Boise requires a fence to sit entirely on the builder's own property unless the neighbor agrees to something else.
The property owner installing the fence shall locate the fence entirely on their property or within an easement unless agreements are made with the abutting property owners.
(b) If a fence is to be erected upon and within public right-of- way, approval shall also be obtained from the ACHD.
(c) In Mixed-Use zoning districts, concrete and masonry walls of any height and fences over seven feet tall shall be approved by the Building Department.
(d) Fences, walls, or plantings on or within the clear vision triangle shall be limited to 36 inches in height.
(e) Multiple fences, railings, and/ or privacy screens within setbacks shall be separated by a minimum distance of five feet in order to be considered separate [https://export.amlegal.com/media/d6fb9af378cfd952023978abcf2d6c995555e65d/ IMAGES/0-0-0-6208.jpg] Figure 4.34. Fence Separation in Setbacks
(f) All fences shall be maintained in accordance with Section
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-31: Code current through: Ord. 20-26, passed 6-9-2026).
Full Breakdown
Under Boise City Code § 11-04-09.10.B(2)(a), the property owner installing a fence must locate it entirely on their own property or within an easement: straddling the shared lot line requires a separate agreement with the abutting property owner. There's no city cost-sharing mandate for boundary fences; that's a private arrangement between neighbors. Maximum heights still apply: 72 inches along rear and side lot lines, with lower limits (36-48 inches) in front and street-side setbacks, and fences must be kept structurally sound per § 11-04-013.1.F.
Violations & Fines
Code enforcement can require relocation of a fence built over the property line without the neighbor's agreement; ACHD approval is separately required for any fence placed in public right-of-way.
Frequently Asked Questions
Can I build a fence right on my property line with my Boise neighbor?
Does Boise require neighbors to split the cost of a shared fence?
Sources & Official References
Other rules in Boise
Compare Boise to another location·View the Idaho fence regulations overview
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