Fence laws in Arizona
What Arizona statutes and statewide codes say about fences, one topic at a time, with the section number and a link to the document behind every line.
Fence laws in Arizona, question by question
The short version
- Who pays on the line
- Arizona has no statute splitting the cost of a fence on the boundary. The chapters that were read are listed below. Cities and counties decide this one.
- How tall
- Arizona sets no maximum fence height. The chapters that were read are listed below. Cities and counties decide this one.
- Permits
- Arizona has no statewide building code and gives the job to the counties.
- Pool barriers
- Arizona writes its pool fence rule straight into state law instead of leaving it to a code. The figure is 5 feet, for minimum height of the wall, fence or barrier enclosing a pool, measured on the outside face.
- Spite fences
- Arizona has no spite fence statute. The chapters that were read are listed below. Cities and counties decide this one.
- Measured from what
- Arizona names a starting point in the one place it gives fence sizes. The figure is 50 inches, for top wire of a lawful fence, measured above the ground. It reaches a lawful fence on open range land only.
- Corner lots
- Arizona sets no clear view rule at a corner on a private lot. It reaches a public highway or airport, including a state highway, not a fence standing on private land only.
- Retaining walls
- Arizona leaves retaining walls to county boards of supervisors and city and town councils, each of which adopts a national model building code of its own choosing.
- Materials
- Arizona describes a lawful fence by its wire. The figure is 4 strands, for barbed wires in a lawful fence. It reaches lawful fences for livestock only.
- Livestock
- Arizona says exactly how to build a lawful fence. The figure is 50 inches, for height of the top wire on a lawful fence.
Who owns the fence between two properties in Arizona?
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Arizona law has no rule about this. The chapters that were read are listed below. Cities and counties decide it instead.
Arizona has no law splitting the cost of a fence on a boundary between neighbors. Arizona is an open range state, so the fence law in Title 3 is about keeping livestock out and about what is owed when animals break through. Title 33, the property title, has no fence chapter at all. Two neighbors settle the cost themselves, or a city rule covers it.
Documents read before writing that:
- A.R.S. Title 3Arizona State Legislature
- A.R.S. Title 33Arizona State Legislature
How tall can a fence be in Arizona?
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Arizona law has no rule about this. The chapters that were read are listed below. Cities and counties decide it instead.
Arizona sets no limit on how tall a fence at a house can be. City, town or county zoning sets it, and there is no statewide building code behind that. State law has two fence heights and neither is a cap: the five foot pool fence in Title 36, which is about pool safety, and the six foot line in A.R.S. 11-861(G)(2), which only marks when a fence counts as a side structure for a county fire code rule.
Documents read before writing that:
- A.R.S. Title 3Arizona State Legislature
- A.R.S. Title 33Arizona State Legislature
Do I need a permit for a fence in Arizona?
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Arizona answers this in its own law. The words that do it are quoted below.
Arizona has no statewide building code and gives the job to the counties. In a county that has zoning, the board of supervisors may adopt and enforce a building code for the zoned areas outside any city, and may leave out areas zoned rural or unclassified. The code has to be adopted by reference after notice and hearings before the county planning and zoning commission and the board. The choice is limited too: a building, electrical, plumbing or mechanical code from a national code group, or the one the largest city in the county already uses.
In any county that has adopted zoning pursuant to this chapter, the board of supervisors may adopt and enforce, for the unincorporated areas of the county so zoned, a building code and other related codes to regulate the quality, type of material and workmanship of all aspects of construction of buildings or structures
Also on permits in Arizona
- set in state lawCities and towns get the same power under a separate law. An Arizona city may adopt an existing code by reference without printing the code itself, as long as the ordinance doing it is published in full. At least three paper copies, or one paper and one electronic copy, stay on file with the city clerk for anyone to look at. So the fence permit rule in Arizona is whichever code the city or town picked. A.R.S. § 9-802Arizona · Statute
- set in state lawArizona law puts a number on an ordinary fence in exactly one place, and it is in the same county statute. A county fire code cannot make a small side building or structure put in fire sprinklers by way of a fire truck access road rule. The list of what counts as one of those side structures names a fence more than six feet high, next to barns, carports, sheds and walls that hold back earth. Six feet is not a cap on fence height. It is the line above which a fence counts as a structure for that one fire code rule. A.R.S. § 11-861(G)(2)Arizona · Statute
Pool fence requirements in Arizona
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Arizona answers this in its own law. The words that do it are quoted below.
Arizona writes its pool fence rule straight into state law instead of leaving it to a code. A pool or other held body of water at least eighteen inches deep and wider than eight feet gets a fence at least five feet high, measured on the outside face of the wall, fence or barrier. Gates close and latch by themselves, the latch sits at least fifty four inches above the ground, and the gate opens away from the pool.
Be entirely enclosed by at least a five foot wall, fence or other barrier as measured on the exterior side of the wall, fence or barrier.
5 ftminimum height of the wall, fence or barrier enclosing a pool, measured on the outside face
Spite fence laws in Arizona
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Arizona law has no rule about this. The chapters that were read are listed below. Cities and counties decide it instead.
Arizona has no spite fence law. The fence sections in Title 3 are about livestock and no fence districts, and Title 33 has no fence rules in it. Neither one sets a height that turns a fence into a nuisance, and neither one says anything about a fence put up to annoy a neighbor.
Documents read before writing that:
- A.R.S. Title 3Arizona State Legislature
- A.R.S. Title 33Arizona State Legislature
How fence height is measured in Arizona
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Arizona answers this in its own law. The words that do it are quoted below.
Arizona names a starting point in the one place it gives fence sizes. Section 3-1426 describes a lawful fence on open range and puts the top barbed wire fifty inches above the ground, with the other wires spaced down from it. The ground is the starting point and the law says so. That rule is there to turn livestock, not to size a fence at a house. Section 9-462.01 lets a city set the height of structures, so a fence at a house is a city matter and the city picks the surface to measure from.
A fence shall be deemed a lawful fence when it is constructed and maintained with good and substantial posts firmly placed in the ground at intervals of not more than thirty feet, upon which posts are strung and fastened at least four barbed wires of the usual type tightly stretched and secured to the posts and spaced so that the top wire is fifty inches above the ground
50 intop wire of a lawful fence, measured above the ground
Fence rules for corner lots in Arizona
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Arizona answers this in its own law. The words that do it are quoted below.
Arizona sets no clear view rule at a corner on a private lot. What Title 28, Chapter 20 does is make it a petty offense to place or keep anything blocking a public highway. Section 28-7053 covers a structure or object of any kind placed in, under or over part of the road, which is wide enough to catch a fence. Section 28-7054 sets the notice and removal steps. The rule stops at the edge of the public road. Height and setback on the lot behind it come from city and county zoning under sections 9-462.01 and 11-812.
Places or maintains an encroachment or obstruction on, makes any use of or otherwise occupies a public highway or airport of this state or any of its political subdivisions for any purpose other than for authorized public travel, communication, transportation or transmission, except as otherwise provided in this section.
Retaining wall rules in Arizona
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Arizona does not set this. It leaves it to county boards of supervisors and city and town councils, each of which adopts a national model building code of its own choosing.
Arizona has no statewide building code, so it has no state rule for a wall that holds back earth. Section 11-861 lets a county board of supervisors adopt a building code for the parts of a zoned county outside any city. The choice is limited to a code from a national code writing group, or the code the largest city in that county already uses. The height at which a wall of that kind needs a permit comes from whichever code the county or city picked.
In any county that has adopted zoning pursuant to this chapter, the board of supervisors may adopt and enforce, for the unincorporated areas of the county so zoned, a building code and other related codes to regulate the quality, type of material and workmanship of all aspects of construction of buildings or structures
The code hands this to county boards of supervisors and city and town councils, each of which adopts a national model building code of its own choosing, which is not published in the code itself.
Fence materials allowed in Arizona
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Arizona answers this in its own law. The words that do it are quoted below.
Arizona describes a lawful fence by its wire. It takes solid posts no more than thirty feet apart with at least four tight barbed wires on them. A fence built some other way still counts when it is as strong and turns livestock as well.
A fence shall be deemed a lawful fence when it is constructed and maintained with good and substantial posts firmly placed in the ground at intervals of not more than thirty feet, upon which posts are strung and fastened at least four barbed wires of the usual type tightly stretched and secured to the posts
4 strandsbarbed wires in a lawful fence
Livestock and boundary fence law in Arizona
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Arizona answers this in its own law. The words that do it are quoted below.
Arizona says exactly how to build a lawful fence. Posts go in the ground no more than thirty feet apart. At least four barbed wires are stretched tight and tied to those posts. The top wire sits fifty inches above the ground, and the other three sit twelve, twenty two and thirty two inches below it. Posts set more than one rod apart need stays no more than seven and a half feet from each other. Any other fence just as strong and just as good at turning livestock counts too.
A fence shall be deemed a lawful fence when it is constructed and maintained with good and substantial posts firmly placed in the ground at intervals of not more than thirty feet, upon which posts are strung and fastened at least four barbed wires of the usual type tightly stretched and secured to the posts and spaced so that the top wire is fifty inches above the ground
50 inheight of the top wire on a lawful fence
Also on agricultural fencing in Arizona
- set in state lawArizona is a fence out state. The landowner who wants animals kept off builds the fence, not the animal owner, and nothing is owed for a trespassing animal unless the land was already ringed by a lawful fence. A no fence district is the exception. Inside one, Section 3-1424 makes the person in charge of the livestock pay the damage and guilty of a class 2 misdemeanor for letting them run loose. A.R.S. 3-1427Arizona · Statute
Cities in Arizona
21 cities with their own fence rules read from the city’s own code. Where a city says nothing on a topic, the state answer above is what applies.
Documents behind this page
8 documents, each read on the date shown. Nothing on this page rests on a summary of one.
- Arizona State LegislatureArizona Revised Statutes, Title 3, Agriculture, full title listing
- Arizona State LegislatureArizona Revised Statutes, Title 33, Property, full title listing
- Arizona State LegislatureArizona Revised Statutes, Title 11, Chapter 6, Section 11-861, Adoption of codes by reference
- Arizona State LegislatureArizona Revised Statutes, Title 9, Chapter 6, Section 9-802, Procedure for adoption by reference
- Arizona State LegislatureArizona Revised Statutes, Title 36, Chapter 15, Article 5, Section 36-1681, Pools; enclosures; safety features
- Arizona State LegislatureArizona Revised Statutes, Title 3, Section 3-1426, Lawful fence defined
- Arizona State LegislatureArizona Revised Statutes, Title 28, Chapter 20, Section 28-7053, Misuse of public highway or airport; violation; classification; injunction; definition
- Arizona State LegislatureArizona Revised Statutes, Title 3, Chapter 11, Article 4
What this page does not cover
Everything above is state law. Fence height, setback, corner visibility and materials are set by city and county ordinance in almost every state, and a local rule can be far stricter than the statewide default. A parcel can also carry an easement, an overlay district, a fire hazard zone or a recorded HOA restriction, none of which appear in a statute.
This is general information drawn from published government documents. It is not legal advice, statutes are amended, and the date beside each finding is the date the document was read. How findings are made · What the terms mean