Fence laws in Costa Mesa, California
What the Costa Mesa municipal code says about fences, one topic at a time, with the section number and a link to the document behind every line. Where Costa Mesa sets no rule of its own, the California rule is shown in its place and marked as such.
Fence laws in Costa Mesa, California, question by question
The short version
- Who pays on the line
- On a Costa Mesa corner lot, the front of the property is the narrowest street frontage. It reaches corner lots only.
- How tall
- In the R2-MD, R2-HD and R-3 zones, anything over thirty six inches on a corner lot has to stand five feet back from the street side property line. The figure is 5 feet, for setback from the street side line for anything over thirty six inches. It reaches corner lots in the R2-MD, R2-HD and R-3 zones only.
- Permits
- Going over the height limit in Costa Mesa is a discretionary review rather than a form.
- Pool barriers
- A pool fence in California stands at least sixty inches high. The figure is 60 inches, for minimum height of a pool enclosure.
- Spite fences
- A fence over ten feet tall in California is a private nuisance when it was put up or kept there to annoy the neighbor and the extra height serves no purpose. The figure is 10 feet, for spite fence threshold, with malice required.
- Measured from what
- Costa Mesa leaves the measuring rule to the legislative body of each county and city, through its zoning ordinance.
- Corner lots
- The Costa Mesa corner cutoff is not a fixed figure. It reaches street intersections and driveways only.
- Retaining walls
- Costa Mesa leaves retaining walls to Title 24 of the California Code of Regulations, the California Building Standards Code, which tracks the International Building Code and the International Residential Code.
- Materials
- On commercial and industrial land in Costa Mesa a fence may not obscure the setback landscaping that is required next to a public right of way, unless a specific entitlement approves it. It reaches commercial and industrial zones only.
- Livestock
- California calls a fence lawful when it is strong enough to keep livestock from getting in or out. The figure is 4 feet, for height of the top wire on a lawful wire fence.
Who owns the fence between two properties in Costa Mesa?
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Costa Mesa answers this in its own law. The words that do it are quoted below.
On a Costa Mesa corner lot, the front of the property is the narrowest street frontage. That single sentence decides which boundary gets the low front limit and which gets the taller street side one, and it takes no account of where the driveway, the garage or the address is. A house whose front door faces the long street is still fronting the short one as far as the fence rules are concerned.
For corner lots, the narrowest street frontage is the front of the property.
Standards and Specifications, Walls, Fences, and Landscaping
Also on fences on the property line in Costa Mesa
- set in state lawTwo neighbors split the cost of a fence on the line in California. The law starts from the idea that both get the same benefit from it, so both owe the same share of building it, keeping it up and replacing it. A neighbor about to spend that money gives the other one thirty days written notice first. Either neighbor can show the even split is wrong, and a court can then order less than half or nothing at all. Civ. Code 841California · Statute
- set in state lawThe notice has to say six things: that the law starts from an even split, what is wrong with the fence now, what is planned instead, what it is expected to cost, how the cost gets shared, and when the work happens. Civ. Code 841(b)(1)California · Statute
How tall can a fence be in Costa Mesa?
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Costa Mesa answers this in its own law. The words that do it are quoted below.
In the R2-MD, R2-HD and R-3 zones, anything over thirty six inches on a corner lot has to stand five feet back from the street side property line. It is written as a setback rather than as a height cut, so the fence does not get shorter, it moves. A six foot fence is still a six foot fence in those zones. It just cannot sit on the line, and the five feet it gives up stays open.
On corner lots, wall and fences in excess of 36 inches in height shall be set back 5 feet from the street side property line.
Standards and Specifications, Walls, Fences, and Landscaping
5 ftsetback from the street side line for anything over thirty six inches
Also on fence height in Costa Mesa
- no rule, documents checkedCalifornia sets no limit on how tall a fence at a house can be. Cities and counties write that in their zoning codes and the answer changes a lot from one town to the next. The one height in state law is the ten feet in the spite fence rule, and that only matters when the fence was put up to annoy a neighbor. It is not a building limit. Civ. Code 841California · Statute
Do I need a permit for a fence in Costa Mesa?
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Costa Mesa answers this in its own law. The words that do it are quoted below.
Going over the height limit in Costa Mesa is a discretionary review rather than a form. Discretionary means the city weighs the request and can refuse it, which is a different thing from a permit that issues once the drawings are right. The sheet also states that a fence or wall next to a public street is reviewed for compatibility and harmony with the surrounding buildings, so appearance is part of the decision and not only dimensions.
Any walls or fences exceeding the maximum specificied height limits require discretionary review.
Standards and Specifications, Walls, Fences, and Landscaping
Also on permits in Costa Mesa
- set in state lawCalifornia does not write its own building code from scratch. Section 17922 adopts Title 24 of the California Code of Regulations and requires it to ask for much the same things as the International Building Code and the International Residential Code, with state additions and cuts. So the permit rule for a fence starts out as outside code text that California then edits. Health & Saf. Code 17922California · Statute
- set in state lawA California city or county can make the statewide building code stricter, but not quietly. Section 17958.7 makes the city council say in writing why each change is needed because of local weather, ground or land shape. That finding goes to the California Building Standards Commission, and the change does nothing until it is filed. The finding is a public record, which is why a local permit line can sit well below the statewide one. Health & Saf. Code 17958.7California · Statute
Pool fence requirements in Costa Mesa
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California answers this in its own law. The words that do it are quoted below.
A pool fence in California stands at least sixty inches high. No more than two inches may be left between the ground and the bottom of it, and no gap in it may pass a four inch ball. The outside face has no handholds or footholds a child under five could climb. Gates open away from the pool and close and latch by themselves, with the latch set no lower than sixty inches above the ground.
This one is California law, not Costa Mesa law. All California findings
An enclosure shall have all of the following characteristics: (a) Any access gates through the enclosure open away from the swimming pool, and are self-closing with a self-latching device placed no lower than 60 inches above the ground. (b) A minimum height of 60 inches. (c) A maximum vertical clearance from the ground to the bottom of the enclosure of two inches. (d) Gaps or voids, if any, do not allow passage of a sphere equal to or greater than four inches in diameter. (e) An outside surface free of protrusions, cavities, or other physical characteristics that would serve as handholds or footholds that could enable a child below the age of five years to climb over.
60 inminimum height of a pool enclosure
Spite fence laws in Costa Mesa
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California answers this in its own law. The words that do it are quoted below.
A fence over ten feet tall in California is a private nuisance when it was put up or kept there to annoy the neighbor and the extra height serves no purpose. Height on its own is not enough. The case turns on proving why the fence is there. The rule covers anything built like a fence, not only a fence.
This one is California law, not Costa Mesa law. All California findings
Any fence or other structure in the nature of a fence unnecessarily exceeding 10 feet in height maliciously erected or maintained for the purpose of annoying the owner or occupant of adjoining property is a private nuisance.
10 ftspite fence threshold, with malice required
How fence height is measured in Costa Mesa
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Costa Mesa does not set this. It leaves it to the legislative body of each county and city, through its zoning ordinance.
California gives a fence height and never says what it is measured from. Civil Code section 841.4 makes a fence over ten feet a private nuisance when it is kept up to annoy a neighbor. It does not say whether the ten feet starts at bare dirt, at the finished yard, or at the high side of a slope. Government Code section 65850 is why the state stops there: it lets any county or city set the place, height and size of structures. So the number and the surface it starts from are both written into local zoning.
This one is California law, not Costa Mesa law. All California findings
Regulate all of the following: (1) The location, height, bulk, number of stories, and size of buildings and structures.
The code hands this to the legislative body of each county and city, through its zoning ordinance, which is not published in the code itself.
Fence rules for corner lots in Costa Mesa
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Costa Mesa answers this in its own law. The words that do it are quoted below.
The Costa Mesa corner cutoff is not a fixed figure. Staff can increase or decrease it for the design or configuration of the street, so the triangle on one corner is not necessarily the triangle on the next. The drawing on the sheet marks a visibility triangle of thirty five feet along each street with a ten foot setback at the driveway, and the written rule above it says that those distances move. Most cities on this site publish one number and hold to it.
Corner / street cutoffs may be increased or decreased by staff due to street design / configuration.
Standards and Specifications, Walls, Fences, and Landscaping
Also on corner visibility in Costa Mesa
- set in state lawCalifornia writes no clear view triangle into state law. The Streets and Highways Code counts a fence as an encroachment once it stands in, under or over any part of a state highway right of way. Section 670 then makes putting one there without a written permit from the department a misdemeanor. That covers the public strip, not the corner of a private yard. Government Code section 65850 gives every city and county the power to set the height and place of structures, and that is where a corner triangle gets written in California. Cal. Sts. & Hy. Code 660California · Traffic code
Retaining wall rules in Costa Mesa
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Costa Mesa does not set this. It leaves it to Title 24 of the California Code of Regulations, the California Building Standards Code, which tracks the International Building Code and the International Residential Code.
California has no rule of its own in statute for a wall that holds back earth. The rule is in Title 24 of the California Code of Regulations, which section 17922 adopts by reference and requires to match the newest editions of a named list of outside codes, the International Building Code and the International Residential Code among them. The same section leaves setbacks, side yards, rear yards and property line rules entirely to cities and counties.
This one is California law, not Costa Mesa law. All California findings
The building standards and rules and regulations shall impose substantially the same requirements as are contained in the most recent editions of the following international or uniform industry codes as adopted by the organizations specified:
The code hands this to Title 24 of the California Code of Regulations, the California Building Standards Code, which tracks the International Building Code and the International Residential Code, which is not published in the code itself.
Fence materials allowed in Costa Mesa
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Costa Mesa answers this in its own law. The words that do it are quoted below.
On commercial and industrial land in Costa Mesa a fence may not obscure the setback landscaping that is required next to a public right of way, unless a specific entitlement approves it. The rule protects the planting rather than the sight line, so a solid wall standing in front of a required hedge fails even where nothing about visibility or height is wrong. Only the entitlement process can get past it.
No fence or wall shall obscure the setback landscaping required adjacent to a public right-of-way unless approved by a specific entitlement.
Standards and Specifications, Walls, Fences, and Landscaping
Also on materials in Costa Mesa
- set in state lawCalifornia sets a wire standard for a lawful fence in grazing counties. A wire fence takes three tight barbed wires on solid posts set no more than a rod apart, with one wire at least four feet up. Any fence as strong and as tall as that one counts too. Cal. Food & Agric. Code 17121California · Statute
Livestock and boundary fence law in Costa Mesa
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California answers this in its own law. The words that do it are quoted below.
California calls a fence lawful when it is strong enough to keep livestock from getting in or out. A wire fence gets real numbers: three tight barbed wires on posts set no more than one rod apart, with one of those wires at least four feet off the ground. Any other fence as tall, as strong and as good at holding animals counts too, and so does a cattle guard wide and deep enough to turn them.
This one is California law, not Costa Mesa law. All California findings
No wire fence is a good and substantial fence within the meaning of this article unless it has three tightly stretched barbed wires securely fastened to posts of reasonable strength, firmly set in the ground not more than one rod apart, one of which wires shall be at least four feet above the surface of the ground.
4 ftheight of the top wire on a lawful wire fence
Also on agricultural fencing in Costa Mesa
- depends, see the pageCalifornia answers this one county by county. Section 17123 names Siskiyou, Lassen and Modoc, plus parts of Trinity and Shasta, as land used mainly for grazing. Section 17124 lets the board of supervisors of any county put the same label on the county or part of it. Where the label applies, the land has to be fully fenced before the person on it may take in a stray animal or hold it for payment. Cal. Food & Agric. Code 17122California · Statute
Documents behind this page
10 documents, of which 1 was published by Costa Mesa itself. Each was read on the date shown.
- California LegislatureCalifornia Civil Code Section 841, Good Neighbor Fence Act of 2013
- City of Costa Mesa, Economic and Development ServicesStandards and Specifications, Walls, Fences, and Landscaping
- California LegislatureCalifornia Civil Code Section 841.4, spite fences
- California LegislatureCalifornia Health and Safety Code Section 17922, adoption of building standards
- California LegislatureCalifornia Health and Safety Code Section 17958.7, local modification of building standards
- California LegislatureCalifornia Health and Safety Code Section 115923, enclosure requirements
- California LegislatureCalifornia Government Code, Title 7, Division 1, Chapter 4, Article 2, Section 65850
- California LegislatureCalifornia Streets and Highways Code, Division 1, Chapter 3, Section 660
- California LegislatureCalifornia Food and Agricultural Code, Division 9, Part 2, Chapter 3, Article 5
- California LegislatureCalifornia Food and Agricultural Code, Division 9, Part 2, Chapter 3, Article 5
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 Costa Mesa publishes, plus the California rules that apply where the city sets none. Fence laws in California 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