Permit briefing
Do you need a permit for a fence?
Under the International Residential Code, a fence up to 7 feet needs no building permit; zoning, pools, floodplains and local amendments can change that.
The reliable short answer
Use height and exact lot position to ask a narrow question. ‘Do I need a fence permit?’ is too broad for a reliable answer.
Planning complexity
Low
Local answer required
Yes
The model code’s answer
How tall can a fence be without a permit?
7 feet, under the International Residential Code, the model building code for houses. Its list of work that needs no building permit includes fences not over 7 feet high. The International Building Code, written for other buildings, draws the same line and since its 2024 edition leaves swimming pool barriers out of it.
| Rule | What it exempts |
|---|---|
| Model code (IRC R105.2) | Up to 7 ft |
| Austin | Up to 7 ft; 6 ft along a public right-of-way; none in a floodplain |
| Los Angeles | Up to 10 ft, pool barriers excepted; 3 ft 6 in for masonry or concrete |
A city starts from the model and amends it, so the figure that binds your lot is the city's. Austin keeps seven feet and lowers it where a fence runs along the street; in a floodplain every fence needs a permit. Los Angeles lets any fence but a masonry wall or a pool barrier rise to ten feet without one, and asks for a permit once a masonry or concrete wall passes three and a half feet. Zoning height limits by yard sit on top of whichever answer applies.
A three-step permit decision
1. Name the yard and height
Write down finished fence height and whether each segment is in the front, side or rear yard. Height rules often change at the front setback and at street corners.
2. Separate permits from other approvals
Permit-exempt does not mean zoning-exempt, easement-safe or HOA-approved. Verify the property line and call 811 before digging.
3. Know how the city takes the application
Austin files a fence over its permit line as a small project. Los Angeles can issue an express permit, without plan check, for a block wall up to 6 feet built to its standard and kept out of the front yard. Phoenix checks a fence from 3 to 7 feet against its city code and zoning only, and gives a taller one a full building permit. Houston and San Diego price a fence by its length. Pool barriers, masonry walls, retaining conditions and flood hazards deserve a direct question to the building department before you apply.
What Austin and Los Angeles say about a fence
Austin
- No permit
- A fence up to 7 feet high, unless it is in a floodplain or stands more than 6 feet high along a public right-of-way other than an alley.
- Permit
- Above those limits it is filed as a small project. Along the right-of-way it also needs a letter of authorization, which takes a Board of Adjustment variance.
- Fees
- Small projects plan review$146.15
Los Angeles
- No permit
- A masonry or concrete fence up to 3 feet 6 inches, and any other fence up to 10 feet unless it is a swimming pool barrier. Zoning still caps a fence in a required front yard at 3 feet 6 inches in the R zones and 6 feet in the A zones, RA included, and at the sides and rear at 8 feet on an RW lot or a lot 40 feet wide or more outside a Hillside Area, or 6 feet on a narrower or hillside lot; a Zoning Administrator can authorize 8 feet.
- Permit
- A masonry or concrete fence over 3 feet 6 inches. A block wall up to 6 feet, built to the city's standard and kept out of the front yard, can get an express permit without plan check.
- Valuation
- Masonry fence or wall, per square foot of wall$10
- Concrete fence or wall, per square foot of wall$14
What to have ready before you call
- Measured length and finished height by yard segment
- Survey or reliable property-line evidence
- Corner-lot, pool, easement and flood-hazard status
- Material and gate details for HOA or design review
Print and take along
Fence permit worksheet
Fill in the measurements before you call or visit. Each one is a number the city’s exempt list is tested against.
- Finished height at the tallest pointThe model code's line is 7 ft; cities move it.
- ft
- Length of each runWhere a permit is needed, cities often bill by the foot.
- lineal ft
- Which yard each run sits inZoning sets a lower height in front and street side yards.
- FrontStreet sideSideRear
- MaterialSome cities exempt only fences that are not masonry or concrete.
- WoodVinylMetalMasonryConcrete
- Part of a pool barrierA pool barrier can need a permit at any height.
- YesNo
- Along a public street, alley or sidewalkStreet frontage and corner visibility areas cap the height.
- YesNo
Ask the city
- Does the city's exempt list keep the model code's fence line, and does it apply in every yard of this lot?
- What height does zoning allow in each yard the fence crosses?
- Is the lot in a floodplain, or does a recorded easement run along the fence line?
- Do deed restrictions or an HOA need to approve the fence before the city does?
From research to quotes
Give every bidder the same scope.
Set the run length, height, material and gate count. The brief adds the post, span and concrete takeoff, and asks every bidder for an installed total and its price per linear foot over that same run. No contact details needed; sending it on is optional.
Create fence briefUse the dimensions, not a guess
Related field notes
- Do You Need a Permit for a Fence?
- Pool Fence Requirements: Height, Gates and Latches
- Easements on Your Property: What You Can Build in One
- Right-of-Way Permits: Curb Cuts, Sidewalk Repair and Encroachments
- Good Neighbor Fence Law: Who Pays for a Shared Fence
- A Neighbor's Tree Over the Line: Who Owns It, Who May Trim It
- Building Permit Cost and Time: Fees in Austin and Los Angeles