Boise's Fence Regulations: The Rules That Matter
Every city handles fence regulations a little differently. In Boise, Idaho, there are 5 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.
Height Limits
Boise caps residential fence height at 6 feet on side/rear lines and limits front-yard fences to 36-48 inches under the Development Code.
Key details: Rear/side yard max height: 72 inches (6 feet). Front yard solid fence max: 36 inches. Front yard open-vision fence max: 48 inches. Electric fences: Prohibited citywide. Barbed wire: I-1/I-2 industrial zones only.
Oversize or noncompliant fences are code enforcement matters handled through the Planning and Development Services Department; owners can be required to remove or modify a fence that exceeds the height limit or sits in the clear vision triangle.
Material Restrictions
Boise bans electric fences citywide and restricts barbed wire, chain-link, and low-quality materials under its development code.
Key details: Electric fences: Prohibited citywide. Barbed wire: I-1/I-2 zones only, 72" min height. Chain-link: Not valid as screening material. Historic Districts: Wood or wrought iron only, or COA required.
Nonconforming fence materials are a zoning code violation handled through Planning and Development Services; unpermitted Historic District fence materials can trigger a stop-work order and require removal or a retroactive Certificate of Appropriateness.
Neighbor Fence Rules
Boise requires a fence to sit entirely on the builder's own property unless the neighbor agrees to something else.
Key details: 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.
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.
Retaining Walls
Boise caps retaining walls in setbacks at 36 or 72 inches, and a building permit kicks in above 4 feet of exposed height.
Key details: Front setback max: 36 inches. Other setback max: 72 inches. Permit-exempt height: under 4 feet. Enforcing agency: Planning & Building Depts..
Building without a required permit can trigger a stop-work order and a special investigation fee equal to double the normal plan review and permit fees. Oversized walls in a setback are a zoning code violation subject to the City's standard code enforcement process.
Fence Permit Requirements
Boise doesn't require a building permit for fences up to 7 feet tall, but Development Code height and material rules still apply, and taller fences or right-of-way fences need city or ACHD approval.
Key details: No permit needed: fences 7 ft or under. Front yard solid fence max: 36 inches. Rear/side fence max: 72 inches. Masonry/concrete walls: Building Dept approval required. Fence in right-of-way: needs ACHD approval.
Violating Boise's Development Code, including unpermitted fence height or materials, is a misdemeanor under § 11-05-07, citing Boise City Code § 1-4-1: each day of a continuing violation counts as a separate offense.
The Bottom Line
Boise's fence regulations rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Boise is broadly strict or permissive.
This guide is based on Boise's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.