Fence Permits in Centennial, CO: Heights, Setbacks and What the City Checks

Most fence projects in Centennial stall for the same reason: the homeowner measured the yard, priced the pickets, and only then found out the city wanted to see a plan first. Centennial runs fences through its own permit track, and the rules are specific enough that a design which is perfectly legal in the back yard becomes a violation the moment it turns the corner toward the street. This guide walks the permit the way the city reads it: when one is required, how tall you can build in each yard, where the posts can sit, what you are allowed to build out of, and what gets checked when the crew is finished.

Key Takeaways

A permit is required for every new fence, and for replacing an existing one whenever the height, location, or materials change.

Front-yard fences top out at four feet. Interior side, street side, and rear yards allow up to eight.

Posts can sit on the property line, but the fence must stay at least six inches off a sidewalk, or five feet back from the street where there is no sidewalk.

Chain link is limited to interior side and rear yards that are not also street yards.

Anything over six feet tall gets a completion inspection from the city.

Colorado law requires a utility locate at least three business days before the first hole is dug.

Do You Need a Permit to Build a Fence in Centennial?

Yes, in nearly every case. Centennial states that a fence permit is required for all new fences and the replacement of existing fences where height, location or materials are changing. The wording matters more than it looks. Swapping a leaning cedar privacy fence for a new cedar privacy fence in the same trench, same height, same line, is the narrow case that can avoid a fresh permit. Change any of those three variables, and you are filing.

That catches more replacement projects than homeowners expect. Going from a five-foot fence to a six-foot fence changes height. Moving the line two feet to square up an odd lot changes location. Replacing cedar with vinyl changes materials. All three are ordinary decisions people make while standing in the yard, and all three put the job back in the permit queue.

Residential fences are governed by Section 12-3-602 of the Land Development Code; commercial and multi-family work falls under Section 12-3-802. Fees are based on project valuation with a twenty dollar minimum review fee, payable before the permit is issued, and the city says applications are processed in roughly five business days.

How Tall Can a Fence Be in Centennial?

Height is set by which yard the fence sits in, not by the lot as a whole. Centennial's residential limits are four feet in the front yard and eight feet in the interior side yard, street side yard, and rear yard. A corner lot is where this trips people up, because a corner lot has two street frontages and the yard classifications shift accordingly.

The eight-foot ceiling is generous by Front Range standards, but height carries a second consequence. The city requires an inspection on completion for any fence more than six feet tall. Plan for that visit rather than discovering it after the crew has packed up, because it is the step that turns a finished fence into a closed permit.

Where Does the Fence Actually Go Relative to the Property Line?

Centennial allows a zero-foot setback from the property line, with two exceptions that decide most layouts. The fence must stand at least six inches back from a sidewalk where one exists, and at least five feet back from the street where there is no sidewalk. Those numbers exist so the fence does not overhang public right-of-way or crowd a walking surface that has to be plowed and maintained.

The bigger constraint is visibility. Fences must comply with Section 12-11-208 of the Land Development Code, the sight triangle and sight distance requirements. A sight triangle is the wedge of open space at a corner or a driveway that keeps a driver's view of oncoming traffic and pedestrians clear. Inside that wedge, a solid six-foot privacy panel is a hazard regardless of how well it is built, which is why corner properties frequently end up with a lower open-picket or ornamental run on the street side and full privacy behind it.

Property line accuracy is worth settling before anyone digs. Fence disputes between neighbors almost always start with a line that was assumed from a lawn edge or an old post rather than confirmed from a survey. If you are unsure where yours runs, resolve it on paper first; moving twenty-eight set posts is not a small correction.

Which Materials Does Centennial Allow?

The city publishes an explicit list. Permitted residential materials are weather-resistant wood, ornamental wrought iron, powder-coated aluminum, vinyl, composite, and masonry. Prohibited are scrap lumber, plywood, barbed wire outside of limited exceptions, and fabric or mesh used as a primary fence component, which rules out the temporary screening that sometimes gets left up as a permanent solution.

Chain link carries its own rule: it is permitted only in interior side yards and rear yards that are not also street yards. For a standard interior lot that is straightforward. For a corner lot, it means the street-facing run has to be something else, which is why mixed installations are common here. If chain link is what you want for a dog run or a back boundary, our chain link fence installation page covers where it fits, and the ornamental iron and aluminum option is what usually handles the street-side portion.

Note the phrase weather-resistant applied to wood. Centennial builds under the 2021 International Residential Code, and the city expects wood in a fence to be species or treatment appropriate for outdoor exposure rather than untreated framing lumber bought on price. Cedar, redwood, and pressure-treated pine are the standard answers on wood fence installations in this market; vinyl sidesteps the question entirely.

What Has to Happen Before the First Hole Is Dug?

A utility locate comes before excavation, and it is not optional. Colorado 811 requires notification at least three business days before you dig, regardless of project size, and that applies to homeowners doing their own work, not only to contractors. Fence post holes in this area commonly run two to three feet deep along property lines, which is exactly where gas, electric, cable, and irrigation lines tend to run.

Sequence the project so the locate window and the permit review overlap rather than run back to back. With permits taking roughly five business days and locates taking three, a homeowner who handles them in series has added nearly two weeks to the schedule before a single post is set. Handled together, the wait is about a week.

What Happens If a Fence Falls Out of Compliance?

Centennial enforces fence condition through Code Compliance, which points fence maintenance back to the same Land Development Code section that governs installation, 12-3-602. The city's stated approach is to educate first and work toward voluntary compliance, but the enforcement ladder is real: violations can carry fines of up to $2,650 per day, per violation when they are not resolved.

Practically, this is an argument for fixing a leaning section in the season it starts leaning. A fence that has gone out of plumb after a windy spring is a repair; the same fence two winters later, with rotted posts and panels on the ground, is a replacement and a potential complaint. Our fence repair and replacement page explains which failures are worth patching and which are not.

Permit Questions Centennial Homeowners Ask

Can I replace my fence without a permit if nothing changes?

Only if height, location, and materials all stay the same. Centennial requires a permit for replacement whenever any one of those three changes. A like-for-like rebuild on the existing line at the existing height is the exception, not the rule, and it is worth a call to the Building Division before you assume your project qualifies.

How much does a fence permit cost in Centennial?

Fence permit fees are based on the project's valuation, with a minimum review fee of twenty dollars, and they are due before the permit is issued. Because the fee scales with the value of the work, a long perimeter of ornamental iron and a short back run of cedar will not cost the same to permit.

Does my HOA approval replace the city permit?

No. They are separate approvals with separate criteria. Many neighborhoods in and around Centennial have covenants that restrict fence style, color, or height more tightly than the city does, and an HOA sign-off says nothing about setbacks, sight triangles, or inspection. Homeowners in covenant-controlled communities generally need both.

Is an inspection required on every fence?

An inspection on completion is required for fences more than six feet in height. Shorter fences still have to meet the height, setback, sight-triangle, and material rules in the code, but they do not automatically trigger the completion visit that a tall privacy fence does.