Permits
Do You Need a Permit for a Fence?
8 min · Updated 2026-10-16
When a fence needs a permit and how tall it may stand in Austin, Los Angeles, Houston, Phoenix and San Diego, and who pays for a shared fence.
Under the model code, a fence up to 7 feet high needs no building permit. Austin wants one for any fence in a floodplain, over 7 feet at any point, or over 6 feet along the public right-of-way other than an alley. Los Angeles exempts masonry or concrete fences up to 3½ feet and other fences up to 10 feet, swimming pool barriers aside. A permit exemption is not a height allowance: Austin says every fence must meet its fence rules whether or not it needs a permit, and Los Angeles’s code says an exemption authorizes no work that breaks its other laws, zoning among them. On a property line, Austin allows a solid fence up to 6 feet above natural grade (7 where the grade changes at least 1 foot), and Los Angeles allows 3½ feet in an R zone’s required front yard and 6 or 8 feet at the sides and rear, depending on the lot.
| Line | Model code | Austin | Los Angeles |
|---|---|---|---|
| Permit | None up to 7 ft | In a floodplain, over 7 ft at any point, or over 6 ft along the public right-of-way other than an alley | Masonry or concrete over 3½ ft; other fences over 10 ft; swimming pool barriers |
| On a property line | No line of its own | Up to 6 ft for a solid fence, from natural grade; 7 ft on a section where the grade changes at least 1 ft; up to 8 ft in some cases with the neighbors’ written consent | The yard limits below, measured from the natural ground next to the fence |
| Front yard and corners | No line of its own | Over 6 ft along the right-of-way, a permit and a Board of Adjustment variance, the variance not needed up to 7 ft where the grade changes at least 1 ft; a solid fence on a corner lot needs Transportation and Public Works approval | 3½ ft in an R zone’s required front yard and 6 ft in an A zone’s, 8 ft with a Zoning Administrator’s approval; 3½ ft within 5 ft of a reversed corner lot’s side street line in most R zones |
| Side and rear yards | No line of its own | On a side or rear property line, the property-line limits above; 8 ft for a solid fence beside commercial or industrial land, or on or within the building setback lines | 8 ft on an RW lot or a lot 40 ft wide or more outside a Hillside Area; 6 ft on a narrower or hillside lot; 8 ft with a Zoning Administrator’s approval |
| Open fences | No line of its own | A fence no more than 20% solid, as chain link generally is, is outside the solid-fence limits | Ornamental fences, latticework, screen walls and hedges count as fences, under the same limits |
| Spikes and wire | No line of its own | No spiked tops, razor wire or barbed wire on fences built since July 31, 2023, or on an older fence once more than half is replaced | Not in the sections read; ask the city |
Fence heights around a house lot
- Front: Los Angeles allows 3½ feet in an R zone’s required front yard, 6 feet in an A zone’s, or 8 feet in either with a Zoning Administrator’s approval. Austin wants a permit and a Board of Adjustment variance for a fence over 6 feet along the public right-of-way other than an alley.
- Sides and rear: Austin allows a solid fence up to 6 feet on a property line, from natural grade, 7 feet on a section where the grade changes at least 1 foot, and up to 8 feet in some cases with the neighbors’ written consent. Los Angeles allows 8 feet on a lot 40 feet wide or more outside a Hillside Area, and 6 feet on a narrower or hillside lot.
- Corners: in Austin a solid fence on a corner lot needs the approval of Transportation and Public Works; in most Los Angeles R zones, a fence within 5 feet of a reversed corner lot’s side street line stays at 3½ feet.
Not to scale; yard depths come from the zoning table, not the drawing. The permit lines are separate: the model code exempts fences up to 7 feet, Austin wants a permit over 7 feet or in a floodplain, and Los Angeles over 10 feet for fences other than masonry, concrete and pool barriers.
Does a fence need a permit?
The International Residential Code leaves fences not over 7 feet high off its permit list. Austin’s Development Services wants a permit for a fence in a floodplain, whatever its height or material, for one more than 7 feet high at any point, and for one more than 6 feet high on a residential lot along the city’s right-of-way other than an alley. That last one also needs a letter of authorization, which takes a Board of Adjustment variance, but a fence along the right-of-way may be 7 feet with no variance where the grade changes at least 1 foot along the property line. Los Angeles needs no permit for masonry or concrete fences not over 3½ feet, or for other fences not over 10 feet, except swimming pool barriers; a masonry or concrete fence or wall over 3½ feet is built under a permit, and a concrete block wall up to 6 feet in a residential zone, outside the required front yard, can get an express permit without plan check.
How tall can a fence be on the property line?
In Austin a solid fence along a property line may be no more than 6 feet high, measured from the natural grade. Where the grade changes at least 1 foot along any section of it, that part may be 7 feet. With the written consent of the adjoining owners it can go up to 8 feet in some cases: where the grade changes at least 2 feet within 50 feet of the boundary, or where a structure would let a child climb a 6-foot fence into a hazard such as a swimming pool. In some cases the property steward must also authorize it, and the city recommends a consultation with Land Use Assistance because other limits may apply. A fence beyond these limits needs the Board of Adjustment’s authorization. The city’s permit application requires a consent letter from the adjoining owners when a fence departs from the standard rules, such as going over 6 feet.
Los Angeles measures a fence from the natural ground level next to it and sets the limits by yard. In a required front yard, a fence or wall may be 3½ feet high in the R zones and 6 feet in the A zones, RA included, or 8 feet in either when a Zoning Administrator authorizes it. In the side and rear yards it may be 8 feet on an RW lot, or on another lot 40 feet wide or more that is not in a Hillside Area, and 6 feet on a narrower lot or in a Hillside Area unless a Zoning Administrator authorizes 8. In the zoning code a fence includes latticework, ornamental fences, screen walls, hedges and thick growths of shrubs or trees.
How tall can a fence be in Houston, Phoenix and San Diego?
Houston’s code needs no permit for a fence up to 8 feet that is not masonry or concrete and not electrically energized; a taller, masonry, concrete or electric one needs a building permit and cannot stand inside a platted building line. Houston has no zoning height table, so recorded deed restrictions are where a fence’s height, materials and place on the lot are most often set, and the city attorney can sue to enforce them. Phoenix exempts a fence up to 3 feet, other than a pool barrier; from 3 to 7 feet it takes a permit checked only against the city code and the zoning ordinance, and over 7 feet a full building permit. The city’s own summary of its zoning rules caps a fence at 40 inches in a required front yard and 6 feet within or bounding the side and rear yards, but that summary dates from 2013 and a 2025 zoning hearing still treated a 4-foot front-yard fence as over height, so confirm the front-yard figure with the city. San Diego exempts a fence of 7 feet or less, other than a pool barrier, and sets heights by yard: in a required front or street side yard a solid fence is 3 feet at the property line, rising to 6 at the setback line, and an open one 6 feet; in the side and rear yards a fence can reach 9 feet if everything over 6 is open. A San Diego fence taller than its yard allows needs a Neighborhood Development Permit, which can add up to 20 percent.
| Line | Houston | Phoenix | San Diego |
|---|---|---|---|
| Permit | Over 8 ft, or a masonry, concrete or electric fence | 3 to 7 ft: a permit checked against city code and zoning only; over 7 ft: a full building permit | Over 7 ft, or a pool barrier; any fence between the shoreline and the first public road needs a Coastal Development Permit |
| Front yard | No zoning table; deed restrictions and platted building lines | 3 ft 4 in in a required front yard, by the city’s 2013 summary | Solid: 3 ft at the property line, rising to 6 ft at the setback line; open: 6 ft |
| Side and rear yards | No zoning table; deed restrictions | 6 ft within or bounding side and rear yards | 9 ft if everything over 6 ft is open |
What are the rules for fences at corners and along the street?
In Austin, a solid fence on a corner lot needs the approval of Transportation and Public Works, so that it does not block drivers’ view of traffic. In Los Angeles’s residential zones other than RW, a fence within 5 feet of the side street lot line of a reversed corner lot may not be over 3½ feet; fences at street intersections follow a separate section of the city code, which this guide has not read, so ask the city before you build a fence at a corner.
Do solid, open and spiked fences follow different rules?
Austin counts a fence with more than 20 percent solid material as solid; an ornamental fence, no more than 20 percent solid and open in design, is outside the height limits for other fences, and chain link generally counts as ornamental. A solid fence may be 8 feet high along the line between residential land and commercial or industrial land, or on or within the building setback lines. Outside the wildland-urban interface Austin does not regulate what a fence on private property is made of; inside it, the city sends owners to its construction guide for the materials that can be used, and a fence over 6 feet may need review or a permit. Austin’s safe fencing rules apply to fences built from July 31, 2023, and to an older fence once more than half its length is replaced: no spiked pickets or spikes above the top rail, no pickets above the top rail spaced more than 2 inches and less than 9 inches apart, no razor wire or barbed wire, except barbed wire the Federal Aviation Administration requires around a landing area, and no design that creates a substantial risk of entrapment or impalement. Fences at least 6 feet high on a property with a non-residential use are exempt from those rules.
What about pools, trees and utilities?
A fence that serves as a swimming pool barrier follows Austin’s pool code and its safe fencing rules; in Los Angeles, the exemption for fences up to 10 feet leaves pool barriers out. Austin reminds owners that trees 19 inches or more across may need a tree review, and that fences must not block utility meters or wastewater cleanouts. The tree removal guide covers the tree rules. Call 811 before you dig post holes.
Who pays for a fence between neighbors?
California presumes that neighbors share equally in the benefit of a fence dividing their properties and, unless they agree otherwise in writing, in the reasonable cost of building, maintaining or necessarily replacing it. The rule is between private owners; it does not reach a city, county or other public agency next door. An owner who means to spend on such a fence has to give each adjoining owner 30 days’ written notice first, stating that presumption and describing the problem, the fix, the estimated cost, the proposed split and the timeline. A court may set a smaller share, or none, where equal shares would be unjust, weighing the benefit to each owner, the cost against the value the fence adds, hardship and how reasonable the project is. This guide has not read a Texas rule on sharing a fence’s cost; ask a Texas lawyer before you count on a neighbor’s share.
Use the fence calculator for posts, panels and bagged concrete, the fence field guide for scoping quotes, and the fence permit brief for each city’s answer and fees.