Fence laws in Hillsboro, Oregon
What the Hillsboro municipal code says about fences, one topic at a time, with the section number and a link to the document behind every line. Where Hillsboro sets no rule of its own, the Oregon rule is shown in its place and marked as such.
Fence laws in Hillsboro, Oregon, question by question
The short version
- Who pays on the line
- Hillsboro puts the perimeter fence of a new subdivision on the developer and ties it to a deadline the developer cares about, and the answer turns on whether the lot is part of a new development and which street it faces. The figure is 3 feet, for landscaped strip between the sidewalk and the fence.
- How tall
- Hillsboro writes every fence height with two inches on the end, and the answer turns on the zone next door and what kind of lot it is. The figure is 74 inches, for fence or wall in a residential zone.
- Permits
- Installing a new fence or wall in Hillsboro takes a fence permit, and so does relocating a portion of an existing one, which catches the common case of shifting a run a few feet without replacing it.
- 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
- Hillsboro has no spite fence statute. The chapters that were read are listed below. Cities and counties decide this one.
- Measured from what
- Hillsboro leaves the measuring rule to a municipal ordinance adopted under the Oregon Residential Specialty Code. The figure is 7 feet, for lowest permit threshold a city may set for a wood, wire mesh or chain link fence. It reaches fences of wood, wire mesh or chain link that are not swimming pool barriers only.
- Corner lots
- Hillsboro leaves corner clearance to the current AASHTO Policy on Geometric Design of Highways and Streets.
- 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
- Hillsboro does not ban chain link, and the answer turns on the material and what the fence stands next to.
- 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 Hillsboro?
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Hillsboro answers this, but the answer changes depending on whether the lot is part of a new development and which street it faces.
Hillsboro puts the perimeter fence of a new subdivision on the developer and ties it to a deadline the developer cares about. Perimeter street fences and walls have to be installed before the city accepts the public infrastructure, which means the fence goes up before the roads and utilities are signed over rather than being left to the individual homeowners afterwards. Along an arterial or collector where the rear yards face the street, the fence has to be set back far enough to leave a landscaped strip at least three feet wide between the sidewalk and the fence. Interior yard fences are built during or after home construction to the fencing plan approved at preliminary review, which is how the uniform appearance is held together. For an ordinary lot no setback from any line is stated.
Perimeter street fences and walls shall be installed by the developer prior to the acceptance of public infrastructure, according to the standards listed in Table 12.50.250-1.
The answer turns on whether the lot is part of a new development and which street it faces.
- a new subdivision perimeter
- The developer builds it first.
- along an arterial or collector
- A three foot planted strip in front. 3 ft
- interior yards
- Built to the approved plan.
- an ordinary lot line
- No setback stated. 0 ft
Also on fences on the property line in Hillsboro
- 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 Hillsboro?
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Hillsboro answers this, but the answer changes depending on the zone next door and what kind of lot it is.
Hillsboro writes every fence height with two inches on the end. A residential fence is limited to six feet two inches, a fence on a residential lot abutting a commercial, mixed-use, urban center, institutional or industrial zone may reach eight feet two inches, and a fence inside a front yard setback on an interior lot is held to four feet two inches. The pattern is deliberate. A manufactured fence panel comes in six foot and four foot heights, so the extra two inches is the gap left underneath it rather than a planning judgment, and an owner who buys a stock panel and sets it on a couple of inches of clearance is still legal. Two lots escape the low front yard figure. On a corner, through or multiple frontage lot the four foot two inch limit applies only at the front yard setback next to the wall with the front door in it, and on a flag lot it does not apply in the front yard setback at all.
Fences and walls in residential zones are limited to 6 feet 2 inches in height
The answer turns on the zone next door and what kind of lot it is.
- a residential lot
- Six feet two inches. 74 in
- backing onto commercial or industrial
- Eight feet two inches. 98 in
- an interior lot front yard setback
- Four feet two inches. 50 in
- a corner lot away from the front door
- Full height.
Also on fence height in Hillsboro
- 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 Hillsboro?
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Hillsboro answers this in its own law. The words that do it are quoted below.
Installing a new fence or wall in Hillsboro takes a fence permit, and so does relocating a portion of an existing one, which catches the common case of shifting a run a few feet without replacing it. The application goes through the process set out at Section 12.80.060 of the same code. There is one exception and it avoids duplicated paperwork rather than relaxing the standard: where a fence, free-standing wall, hedge or berm is required through a Type II or Type III land use approval and is consistent with that approval, no separate fence permit is needed, because the fence has already been reviewed as part of the development. The standards themselves apply either way, reaching both fences proposed inside a development application and any installed outside the land use approval process altogether.
Except as provided in paragraph 2 below, installation of a new fence or wall, or relocation of a portion of an existing fence or wall, shall require submittal and approval of a fence permit application according to the process specified in Section 12.80.060.
Also on permits in Hillsboro
- set in state lawOregon 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. ORSC R101.2.2, item 1Oregon · Building code
- 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
Pool fence requirements in Hillsboro
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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 Hillsboro 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 Hillsboro
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Hillsboro 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 Hillsboro 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 Hillsboro
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Hillsboro does not set this. It leaves it to a municipal ordinance adopted under the Oregon Residential Specialty Code.
Oregon 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.
This one is Oregon law, not Hillsboro 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 ftlowest permit threshold a city may set for a wood, wire mesh or chain link fence
The code hands this to a municipal ordinance adopted under the Oregon Residential Specialty Code, which is not published in the code itself.
Also on how height is measured in Hillsboro
- no rule, documents checkedHillsboro states its heights to the inch and never says what the inch is measured from. No grade is named, a berm is not addressed even though berms appear in the title of the section, and a fence standing on a retaining wall is not addressed. The precision makes the gap more noticeable than it would be elsewhere: a code that troubles to say six feet two inches rather than six feet has clearly thought about the extra two inches at the bottom of a panel, yet does not say whether that bottom sits at existing grade, finished grade or the low side of a slope. The only vertical reference anywhere nearby belongs to the arbor allowance, which permits one garden structure not exceeding eight feet in height and four feet in width in a front yard, and to the soundwall exemption for structures next to light rail. Section 12.50.250.DHillsboro · Zoning code
Fence rules for corner lots in Hillsboro
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Hillsboro does not set this. It leaves it to the current AASHTO Policy on Geometric Design of Highways and Streets.
Hillsboro states no triangle and no distance. Sight distance has to be provided as measured and recommended by the current AASHTO Policy on Geometric Design of Highways and Streets, and the input to that calculation is the speed of the cross street, taken as the eighty fifth percentile or the posted speed, whichever is higher, established by a traffic engineering study. So the size of the clear area at a Hillsboro corner is not a number in the code at all but the output of an engineering calculation that changes from corner to corner, and a faster cross street produces a larger area. The City Engineer or the Road Agency Engineer may approve something different in writing. Vision clearance inside the public right-of-way is handled by a separate document again, the Public Works Design and Construction Standards.
Projects at intersections listed in paragraph B.2 above must provide intersection sight distance as measured and recommended in accordance with the current AASHTO Policy on Geometric Design of Highways and Streets, unless otherwise approved in writing by the City Engineer or Road Agency Engineer.
The code hands this to the current AASHTO Policy on Geometric Design of Highways and Streets, which is not published in the code itself.
Also on corner visibility in Hillsboro
- 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 Hillsboro
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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 Hillsboro 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 Hillsboro
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Hillsboro answers this, but the answer changes depending on the material and what the fence stands next to.
Hillsboro does not ban chain link. It requires it to be finished properly. Every chain link fence has to include a top rail for security and maintenance, which covers the twisted wire ends that a bare fence leaves exposed. Where the fence sits next to a landscaped area, a wetland or open space it also has to carry a black, dark brown or dark green powder coating, so the galvanized silver that reads as industrial disappears against the planting. Barbed wire, razor wire and electric fences are not settled here at all, being handed to the Hillsboro Municipal Code. For a new residential subdivision the code states preferences in order rather than a single rule: masonry or brick walls first, then a solid wood fence with masonry or brick columns and a cap board, with anti-graffiti sealant on the masonry either way.
Chain link fences shall include a top rail for security and maintenance. Chain link fences installed adjacent to landscaped areas, wetlands, or open space areas shall have a black, dark brown, or dark green powder coating.
The answer turns on the material and what the fence stands next to.
- any chain link fence
- A top rail.
- chain link near a wetland
- Dark powder coating too.
- a new subdivision perimeter
- Masonry first, wood second.
- barbed, razor or electric
- Governed by the municipal code.
Also on materials in Hillsboro
- 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 Hillsboro
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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 Hillsboro 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 Hillsboro
- 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 Hillsboro 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 HillsboroHillsboro Community Development Code, Subchapter 12.50, Development and Design Standards, Section 12.50.250, Fences, Free-Standing Walls, Hedges and Berms
- 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
- 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
- City of HillsboroHillsboro Community Development Code, Subchapter 12.50, Development and Design Standards, Section 12.50.260, Sight Distance/Vision Clearance
- 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 Hillsboro 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