Fence laws in Portland, Oregon
What the Portland municipal code says about fences, one topic at a time, with the section number and a link to the document behind every line. Where Portland sets no rule of its own, the Oregon rule is shown in its place and marked as such.
Fence laws in Portland, Oregon, question by question
The short version
- Who pays on the line
- Portland states no setback for a fence from a lot line, so a fence may stand on the boundary, and instead ties the height to what the boundary faces, and the answer turns on what the boundary abuts and how wide it is. The figure is 30 feet, for right-of-way width that allows the full eight feet.
- How tall
- Portland allows a fence of three and a half feet in a required front building setback, or anywhere between the front lot line and the front building line of the house if that is the shorter distance, and the answer turns on whether the fence is in a required setback and which one. The figure is 3.5 feet, for fence in a required front building setback.
- Permits
- Oregon leaves a wood, wire mesh or chain link fence off the statewide building permit list. The figure is 7 feet, for height at or below which a local ordinance may not require a building permit for a wood, wire mesh or chain link fence.
- Pool barriers
- A public pool in Oregon sits inside an enclosure at least 6 feet tall, meant to keep out people who should not get in. The figure is 6 feet, for minimum height of an enclosure around a public aquatic venue.
- Spite fences
- Portland has no spite fence statute. The chapters that were read are listed below. Cities and counties decide this one.
- Measured from what
- Portland puts its measuring rules in a chapter of their own and answers the retaining wall directly, in the opposite direction from most cities that address it.
- Corner lots
- Title 33 draws no sight triangle and states no vision clearance area, and the answer turns on where the main entrance faces, and whether the owner elects the option. The figure is 10 feet, for strip along the side street line held to three and a half feet.
- Retaining walls
- Oregon sets the retaining wall rule in two halves. The figure is 4 feet, for height at or below which a local ordinance may not require a building permit for a retaining wall, measured from the bottom of the footing to the top of the wall. It reaches one and two family dwellings only.
- Materials
- Portland leaves fence materials to Title 26 Electrical Regulations for electrified fences and Title 24 Building Regulations for barbed wire.
- Livestock
- Oregon calls the farm standard an adequate fence and says what it has to do rather than how it is built.
Who owns the fence between two properties in Portland?
Compare fences on the property line across all 50 states
Portland answers this, but the answer changes depending on what the boundary abuts and how wide it is.
Portland states no setback for a fence from a lot line, so a fence may stand on the boundary, and instead ties the height to what the boundary faces. Where a required side or rear setback abuts a pedestrian connection, the fence may be eight feet if that connection is part of a right-of-way at least thirty feet wide, and only three and a half feet if the right-of-way is narrower than thirty. The reasoning is in the purpose clause: a tall fence along a narrow walking path makes a corridor nobody can see into, while the same fence along a wide one does not. Retaining walls get a separate section, with street-facing walls in required setbacks along street lot lines required to step back and be landscaped so they do not read as a fortress, applying to the first ten feet from the line where there is no required setback or it is less than ten.
Fences up to 8 feet high are allowed in required side or rear building setbacks that abut a pedestrian connection if the pedestrian connection is part of a right-of-way that is at least 30 feet wide.
The answer turns on what the boundary abuts and how wide it is.
- a wide walking path
- Eight feet. 30 ft
- a narrow walking path
- Three and a half feet. 3.5 ft
- an ordinary lot line
- No setback stated. 0 ft
- a street-facing retaining wall
- Stepped back and landscaped.
Also on fences on the property line in Portland
- set in state lawOregon splits the cost of a fence on the line between neighbors. When one person already keeps a good fence there and the neighbor then encloses the other side, that neighbor pays half of what the fence is worth as a fence on the line. The two of them set that value between them. If they cannot agree, the one owed the money may sue for half the cost of building or repairing it, and the winning side also gets attorney fees. ORS 96.010Oregon · Statute
How tall can a fence be in Portland?
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Portland answers this, but the answer changes depending on whether the fence is in a required setback and which one.
Portland allows a fence of three and a half feet in a required front building setback, or anywhere between the front lot line and the front building line of the house if that is the shorter distance. In a required side or rear building setback the limit is eight feet. Outside any required setback the fence is not held to a fence figure at all: the height is simply the regular height limit of the zone, which for a single-dwelling zone is far above anything an owner would build. So Portland regulates the fence only where it sits in the strip the zoning keeps clear, and leaves the middle of the lot alone. The section opens with a purpose clause explaining the trade it is making, naming privacy, protecting children and pets and separation from busy streets on one side, and street walls that inhibit police and community surveillance on the other.
Fences up to 3-1/2 feet high are allowed in required front building setbacks, or between the front lot line and the front building line of the primary structure, whichever is less.
The answer turns on whether the fence is in a required setback and which one.
- a required front setback
- Three and a half feet. 3.5 ft
- a required side or rear setback
- Eight feet. 8 ft
- outside any required setback
- The height limit of the zone.
- a corner lot facing its side street
- A different set of heights may be elected.
Also on fence height in Portland
- no rule, documents checkedOregon sets no statewide limit on how tall a fence at a house can be. The fence chapter deals with cost sharing, repair and removal, not size. The residential code names 7 feet, and that figure is a floor on how low a city may set its permit trigger rather than a cap on how tall a fence may be. Cities and counties set the height limit. ORS Chapter 96Oregon · Statute
Do I need a permit for a fence in Portland?
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Oregon answers this in its own law. The words that do it are quoted below.
Oregon leaves a wood, wire mesh or chain link fence off the statewide building permit list. A city may pass its own ordinance requiring a permit for one, and the state code puts a floor under that: the city trigger cannot reach a fence 7 feet tall or less. A city may set the trigger higher than 7 feet, and it may regulate a fence made of some other material at any height. One rule holds everywhere in Oregon, that a fence acting as a swimming pool barrier needs a building permit.
This one is Oregon law, not Portland law. All Oregon findings
A municipality may adopt an ordinance to regulate the construction of other fences constructed of wood, wire mesh or chain link, provided that the threshold established for requiring a building permit does not include fences that are 7 feet (2134 mm) or less in height.
7 ftheight at or below which a local ordinance may not require a building permit for a wood, wire mesh or chain link fence
Also on permits in Portland
- set in state lawOregon runs one building code for the whole state. The statute makes that code the same in every city and county, and it stops a local government enforcing its own rule on a matter the state code already covers when the local rule asks for something different. The director of the Department of Consumer and Business Services can allow an exception. ORS 455.040Oregon · Statute
- no rule, documents checkedThe fence section sets a purpose, a scope, four location and height rules and a pointer to two other titles, and never mentions a permit, a fee or an application. The measurements chapter is equally quiet. Where Portland does send an owner elsewhere it does so by name, citing Title 26 for electrified fences and Title 24 for barbed wire, and the absence of any similar pointer for a permit is the closest thing to an answer the zoning title gives. This is recorded as silence in Title 33 rather than a finding that Portland requires nothing, because Title 24, the Building Regulations, is a separate title that was not read and is exactly where a fence construction permit would sit if one exists. Section 33.110.275Portland · Zoning code
Pool fence requirements in Portland
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Oregon answers this in its own law. The words that do it are quoted below.
A public pool in Oregon sits inside an enclosure at least 6 feet tall, meant to keep out people who should not get in. The gap under the fence is held to 2 inches over grass or gravel and 4 inches over a solid surface, and openings between bars go no wider than 4 inches. A gate onto a public way closes and latches on its own. A pool open only part of the year may use a 4 foot enclosure. The rules come from the Oregon Health Authority and cover public aquatic facilities.
This one is Oregon law, not Portland law. All Oregon findings
ENCLOSURES shall be no less than 6 feet (1.83 m) in height.
OAR 333-060-1000, Section 4.8.6.2.4A
6 ftminimum height of an enclosure around a public aquatic venue
Spite fence laws in Portland
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Portland law has no rule about this. The chapters that were read are listed below. Cities and counties decide it instead.
Oregon has no spite fence law. The fence chapter covers cost sharing, repair, removal and gates, and never mentions a fence built to annoy a neighbor. The property rights chapter has no fence height and no rule about ill will either. A claim of that kind rests on a nuisance case in court or on a local ordinance.
This one is Oregon law, not Portland law. All Oregon findings
Documents read before writing that:
- ORS Chapter 96Oregon Legislative Assembly
- ORS Chapter 105Oregon Legislative Assembly
How fence height is measured in Portland
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Portland answers this in its own law. The words that do it are quoted below.
Portland puts its measuring rules in a chapter of their own and answers the retaining wall directly, in the opposite direction from most cities that address it. Retaining walls and fences on top of retaining walls are measured from the ground level on the higher side of the wall, which means the wall itself does not count toward the fence above it and an owner on the high side gets a full eight foot fence on top of whatever is holding the bank up. Bristol and Bridgeport both add the wall into the fence height and reach the opposite answer for the same structure. For an ordinary fence the rule is the plain one: height is the vertical distance from the ground level immediately under the structure to the top of it. Saying immediately under rather than naming a grade ties the measurement to the ground the fence actually stands on, which on a slope means the fence is judged in sections rather than as a whole.
Retaining walls and fences on top of retaining walls are measured from the ground level on the higher side of the retaining wall.
Also on how height is measured in Portland
- left to the townOregon names 7 feet for a fence and never says 7 feet from what. The residential code lists work a city may choose to require a permit for, puts wood, wire mesh and chain link fences on that list, and blocks a city from setting the permit trigger at 7 feet or less. A city may go higher than 7 feet and may regulate fences of other materials at any height. So the measuring point comes from the city ordinance. ORSC Section R105.2Oregon · Building code
Fence rules for corner lots in Portland
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Portland answers this, but the answer changes depending on where the main entrance faces, and whether the owner elects the option.
Title 33 draws no sight triangle and states no vision clearance area. What it offers a corner lot instead is a choice, and the choice is unusual because the applicant elects it rather than being made to follow it. Where the main entrance is on the facade facing the side street lot line, the owner may elect an alternative set of heights in place of the ordinary front and side rules: three and a half feet within the first ten feet of the side street lot line, three and a half feet in setbacks abutting a narrow pedestrian connection, and eight feet everywhere else including in the required front building setback outside that ten foot strip. That trades the usual arrangement, keeping the ground low where the house faces the side street and allowing height at the nominal front. The section prints a figure alongside it.
On corner lots, if the main entrance is on the facade facing the side street lot line, the applicant may elect to meet the following instead of C.1 and C.2.
The answer turns on where the main entrance faces, and whether the owner elects the option.
- the first ten feet of the side street line
- Three and a half feet. 10 ft
- the rest of the front setback
- Eight feet. 8 ft
- a sight triangle
- Title 33 draws none.
- not electing the option
- The ordinary front and side rules apply.
Also on corner visibility in Portland
- left to the townOregon has no state rule for the clear view at a corner. ORS 227.215 lets a city regulate land development and require a development permit, so a corner triangle comes from the city ordinance. The highway chapter, ORS 374, does use the words sight distance, but only as a test the Department of Transportation applies when it decides whether to allow a new driveway onto a state highway. ORS 227.215Oregon · Zoning code
Retaining wall rules in Portland
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Oregon answers this in its own law. The words that do it are quoted below.
Oregon sets the retaining wall rule in two halves. Statewide, a wall needs a building permit at any height when it keeps people using a building safe, holds up a regulated building, or holds back dirt that could hit a regulated building if the wall let go. For any other retaining wall a city may pass its own ordinance, and the state code puts a floor under it: the city permit trigger cannot reach a wall 4 feet tall or less, measured from the bottom of the footing to the top of the wall. A city may set that trigger higher than 4 feet. The 4 foot floor falls away where the wall holds up a slope steeper than 3 to 1 or carries a load that is not soil.
This one is Oregon law, not Portland law. All Oregon findings
A municipality may adopt an ordinance to regulate other retaining walls, provided that the threshold established for requiring a permit does not include retaining walls 4 feet (1219 mm) or less in height, when measured from the bottom of the footing to the top of the wall
4 ftheight at or below which a local ordinance may not require a building permit for a retaining wall, measured from the bottom of the footing to the top of the wall
Fence materials allowed in Portland
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Portland does not set this. It leaves it to Title 26 Electrical Regulations for electrified fences and Title 24 Building Regulations for barbed wire.
Portland makes a point of not caring what a fence is made of. The fence standards apply to walls, fences and screens of all types whether open, solid, wood, metal, wire, masonry or other material, so the same three and a half feet governs a picket fence and a masonry wall. The two materials most codes ban are handled by pointing somewhere else rather than by silence. Electrified fences are regulated under Title 26, the Electrical Regulations, and barbed wire under Title 24, the Building Regulations, neither of which is part of the zoning code. So an owner asking whether barbed wire is allowed gets an answer from Portland, just not from the chapter that answers every other fence question, and the zoning code itself sets no opacity figure, no finished side rule and no permitted material list.
Electrified fences are regulated under Title 26, Electrical Regulations. The use of barbed wire is regulated under Title 24, Building Regulations.
The code hands this to Title 26 Electrical Regulations for electrified fences and Title 24 Building Regulations for barbed wire, which is not published in the code itself.
Also on materials in Portland
- no rule, documents checkedOregon never says what a fence may be built from. The line and partition fence chapter runs six sections and names no material at all. Its only test is whether the fence is the sort a careful farmer would keep on the line. The estray chapter in the animal title calls an adequate fence a continuous barrier of natural barriers, structures, masonry, rails, poles, planks, wire or a mix of them, and then tests it by whether it holds cattle and horses in or out. Neither chapter says a word about barbed wire, razor wire or an electric fence. ORS 96.010 to 96.060Oregon · Statute
Livestock and boundary fence law in Portland
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Oregon answers this in its own law. The words that do it are quoted below.
Oregon calls the farm standard an adequate fence and says what it has to do rather than how it is built. It is a continuous barrier made of natural barriers, structures, masonry, rails, poles, planks, wire, or a mix of them, kept up so it stands as a continuous guard against cattle or horses getting in or out. A hedge, ditch, river, stream, pond or lake can serve as the natural barrier. The definition gives no height, no wire count and no post spacing.
This one is Oregon law, not Portland law. All Oregon findings
means a continuous barrier consisting of natural barriers, structures, masonry, rails, poles, planks, wire or the combination thereof, installed and maintained in a condition so as to form a continuous guard and defense against the ingress or egress of cattle or equines into or from the lands enclosed by the barrier.
Also on agricultural fencing in Portland
- left to the townBecause the statute gives no numbers, whether a fence was good enough gets decided case by case. When cattle or horses break through a fence on open range and the answer matters, the State Department of Agriculture makes that call, and it weighs how good farmers in that particular area build and keep their fences. The department may charge a fee for making the call. ORS 607.300Oregon · Statute
- depends, see the pageOregon runs both systems at once and a map decides which one applies. A livestock district is an area where a class of livestock may not run loose. Open range is an area where livestock may lawfully run loose. Every incorporated city is a livestock district. The county governing body forms a district, adds land to it, takes land out and dissolves it, and it publishes notice when it does. ORS 607.045(1)Oregon · Statute
Documents behind this page
9 documents, of which 2 were published by Portland itself. Each was read on the date shown.
- Oregon Legislative AssemblyOregon Revised Statutes, Chapter 96, Line and Partition Fences, 2025 Edition, Section 96.010
- City of PortlandPortland City Code, Title 33, Planning and Zoning, Chapter 33.110, Single-Dwelling Residential Zones, current to January 1, 2025
- Oregon Building Codes Division, Department of Consumer and Business Services2023 Oregon Residential Specialty Code, Chapter 1, Scope and Administration
- Oregon Legislative AssemblyOregon Revised Statutes, Chapter 455, Building Codes, 2025 Edition, Section 455.040
- City of PortlandPortland City Code, Title 33, Planning and Zoning, Chapter 33.930, Measurements
- Oregon Health Authority, Public Pool ProgramOregon Public Aquatic Facility Rules, OAR 333-060-1000, Aquatic Facility Design Standards and Construction, effective April 1, 2025
- Oregon Legislative AssemblyOregon Revised Statutes, Chapter 105, Property Rights, 2025 Edition
- Oregon Legislative AssemblyOregon Revised Statutes, Chapter 227, City Planning and Zoning
- Oregon Legislative AssemblyOregon Revised Statutes, Chapter 607, Livestock Districts; Estrays; Animals at Large
What this page does not cover
A city ordinance is not the only rule that reaches a fence. The zoning district a parcel sits in can change the height allowed on it, and so can an overlay district, a recorded easement, a fire hazard severity zone or a coastal zone. A homeowner association can be stricter than the city and nothing in the municipal code will say so. None of those appear here.
The rules above are the ones Portland publishes, plus the Oregon rules that apply where the city sets none. Fence laws in Oregon has the state layer in full.
This is general information drawn from published government documents. It is not legal advice, ordinances are amended, and the date beside each finding is the date the document was read. How findings are made · What the terms mean