Do You Need a Permit for a Fence or Deck in DeKalb County?

Do you need a permit for a fence in DeKalb County?

Often, no. The county exempts two whole categories of fence from its zoning permit, and imposes no fence setback at all — you may build to the property line.

But none of that helps until you answer a prior question: whether DeKalb County zoning governs your address at all. For eight of the county's towns, it does not.

Which rules actually apply to your address?

DeKalb County says it in its own words: the county "DOES NOT have planning & zoning jurisdiction for Ashley, Auburn, Altona, Butler, Garrett, Hamilton, St. Joe & Waterloo." County zoning — the Improvement Location Permit, or ILP — reaches unincorporated DeKalb plus Corunna and Spencerville, and that is the whole list.

Auburn is the county seat and runs its own Unified Development Ordinance, so most people searching for an Auburn fence permit are not under county rules at all. The county puts it in capital letters: "THIS DEPARTMENT DOES NOT ISSUE IMPROVEMENT LOCATION OR BUILDING PERMITS FOR THE CITY OF AUBURN (OR THEIR ETJ) OR ALTONA."

Building permits split along a different line, which is the part that trips people up. The county enforces building codes in unincorporated DeKalb and in Ashley, Butler (not demolition), Corunna, Garrett (not demolition), Spencerville, St. Joe and Waterloo. Auburn and Altona issue their own; Hamilton's come from Steuben County. In Ashley, Butler, Garrett, St. Joe and Waterloo you get the town's ILP first, then the county's building permit — in Corunna and Spencerville the county issues both.

In Ashley, Auburn, Altona, Butler, Garrett, Hamilton, St. Joe and Waterloo, the county's 4-foot and 6-foot fence numbers below do not govern your lot — each of those eight towns has its own zoning ordinance, and a number for one of them has to come from that ordinance. In unincorporated DeKalb, Corunna and Spencerville, the county's numbers are the numbers.

Does a fence need an Improvement Location Permit?

Only if it clears a threshold. UDO §9.13(D), items 11 and 12, exempt two things from the ILP:

1. "chain-link or wire fences (that do not provide a visual barrier)"
2. a "fence less than or equal to 4.5 feet tall"

A fence that fits neither of those needs an ILP. A 6-foot cedar privacy fence needs one; a 4-foot picket fence does not. A 5-foot open chain-link run reads as exempt under item 11 — exactly the kind of call worth confirming by phone. No fence needs a county building permit; that exemption list says "All fences."

One warning. The county's own building permit page states "All fences (ILP required for all fences)" — flatly contradicting the ordinance and the ILP page. The ordinance controls, but a caller could be told either thing. Ask, and be ready to point at §9.13(D).

How tall can a fence be in DeKalb County?

There is no single answer: the height rule follows your zoning district, and DeKalb writes seven separate fence sections. Confirm your district on the county GIS or by phone first.

All of these live in the Unified Development Ordinance.

Two things stand out. A front-yard fence is permitted here — capped at 4 feet and required to be decorative, but permitted, unlike Fort Wayne, where a non-ornamental front-yard fence is prohibited outright. And on agricultural land the measurement runs from the building envelope rather than the yard, with privacy fences and razor wire prohibited outside it. FW-01 and FW-02 are not interchangeable: under FW-01 a wall may sit in a drainage or utility easement with written permission; under FW-02 walls are barred outright.

What about a corner lot?

A corner lot in DeKalb County has two front yards, and that single definition changes the fence you can build. Article 11 defines the front lot line on a corner lot as "the line marking the boundary between the lot and each of the abutting streets," and reinforces it under "Yard, Rear": "Corner lots do not have rear yards, rather they have two side yards."

So the 4-foot cap and the decorative requirement apply along both street frontages. A corner-lot owner cannot treat the second frontage as a rear yard and run a 6-foot privacy fence down it. The setback does not change — there is none either way — but which yard counts as a front yard does.

Is there a fence setback in DeKalb County?

No. UDO §5.17 FW-04(A): "Fences and walls are permitted anywhere on a property and are not subject to setback requirements except as noted below." The same opening sentence appears in all seven fence sections. You may build to the line.

Three exceptions do the real work:

1. No encroachment on an existing right-of-way.
2. A fence forward of a proposed right-of-way line in the county Thoroughfare Plan "shall be moved at the owner's expense if instructed to do so by the County." Real financial exposure on a road the county intends to widen.
3. A drainage or utility easement requires written permission from the easement holder before a fence goes in it.

Walls are stricter than fences in residential districts. Under §5.17 FW-04(A)(2) a wall may not sit in a drainage or utility easement at all — no written-permission option — and may not be built forward of the proposed right-of-way line. On a Rural Estate parcel under FW-03 a wall can sit in an easement with written permission.

The vision clearance triangle

At a corner or a driveway, sight lines beat every other rule. UDO §5.60 VC-01: "No primary or accessory structures, landscaping, fences, walls or signs are allowed to be placed or to project into the vision clearance triangle, except when it is at or below two feet or above the crown of the adjacent roadway. Mailboxes are exempt."

The legs differ by situation, and so does the point they are measured from:

FW-04(D)(2) adds a rule that catches people mid-project: "No fence or wall shall block vision of an existing driveway."

One citation note. Every fence section cross-references "Section 5.57: Vision Clearance; General" — but §5.57 is actually the temporary-use section, and the real rule is §5.60 VC-01. The stale cross-reference survives in the current text, so if §5.57 turns up something unrelated, you have not made a mistake.

What fence materials are allowed?

In residential districts, §5.17 FW-04(C): "Electrified, barbed, and razor wire fences are not permitted." Do not carry that across the county — it is express only in FW-04 and FW-07. The Rural Estate section prohibits only "Electrified and razor wire," and the other sections do not name barbed wire at all.

Two more residential rules. Front-yard materials, §5.17 FW-04(E)(2): "All fences located in the front yard shall be decorative (e.g. split rail, picket, cut timbers)." And the good-neighbor rule, §5.17 FW-04(E)(1): "The non-structural side of the fence shall face outward from the property" — the finished face goes toward the street or the neighbor, not toward you.

Can chain link go in a residential front yard? The ordinance does not say. The sentence "Wire fences are not considered decorative" appears only in the Rural Estate section, §5.16 FW-03(E)(2). FW-04 contains no wire-fence clause, and "decorative" is nowhere defined in Article 11. Whether a particular chain-link, vinyl or aluminum fence counts as decorative in an R-district front yard is a Zoning Administrator judgment call — describe your fence to the department before you buy it.

Do you need a permit for a deck in DeKalb County?

Yes — two of them. A residential deck needs an Improvement Location Permit and a building permit. UDO §5.06 AS-03 expressly lists decks among accessory structures, and subsection (B) requires permits for accessory-structure construction.

The definition matters more than the size. Article 11 defines a deck as "An accessory structure which is on the ground or is elevated from ground level and is open to the sky." Put a roof over it and it stops being a deck for ordinance purposes.

Patio versus deck is the distinction that matters. A ground level patio is exempt from the ILP under §9.13(D)(1), and a grade level patio is exempt from the building permit. A deck is neither — and a ground-level deck is still a deck.

Unlike fences, decks are setback-bound. Article 11 requires accessory structures to conform to the setback, height, impervious surface coverage and other development standards "unless otherwise provided for" — those trailing words are precisely how a fence gets exempted while a deck does not. The figures are per-district in Article 2. There is no single countywide number, so start from your zoning district and ask the department.

How deep do deck footings go in DeKalb County?

The frost line is 36 inches, from the DeKalb County row of the climate table adopted with the 2020 Indiana Residential Code — 115 mph wind, 30 psf ground snow load, 36-inch frost depth, severe weathering, ice shield required. DeKalb has no local frost-depth amendment, so the state figure is the figure.

There is a real exception, and almost nobody local publishes it. Under 675 IAC 14-4.4-43, "Decks not supported by a dwelling need not be provided with footings that extend below the frost line."

Three things about that sentence:

• It waives depth, not footings. A freestanding deck still needs footings. It does not get to sit on nothing.
• It has no size limit. The 721-square-foot figure people quote belongs to a separate, independently numbered exception for freestanding accessory structures, which applies only when the structure is built in accordance with Table R309. A 900-square-foot freestanding deck qualifies for the deck exception exactly as much as a 200-square-foot one.
• It is not a promise the inspector will accept your design. DeKalb County has published no written position on how it applies the exception. Confirm footing depth for a freestanding deck with the county Building Division at (260) 925-3021 before you pour.

There is also a reason to go deep anyway: Northeast Indiana clay and silt soils hold water, and during freeze-thaw cycles ice lenses form and lift shallow posts and piers.

What does the county permit process look like?

The ILP is fast when the paperwork is complete: a "Completed application will be processed within 72 hours" — and, in the same breath, a "Site Plan is required - Incomplete application will not be processed."

That site plan must label property lines, roads, the nearest intersection, a north arrow, existing structures with their dimensions and distances to all property lines, and the proposed improvement's location and dimensions. Inspections must be scheduled at least 24 hours in advance — (260) 925-3021.

And the sentence to take seriously before you start work: "Failure to secure an ILP prior to beginning work may result in penalties, stop-work orders, or required modifications."

Property lines, neighbors, and HOAs

Because there is no fence setback here, you can legally build on the line — which makes knowing where the line is the entire job.

Two Indiana rules apply county-wide:

• You cannot make a neighbor split the cost of a new fence. Indiana's partition fence law, IC 32-26-9, does not apply unless at least one adjoining parcel is agricultural land, and it reaches only property outside, abutting, or adjacent to city or town limits. One mechanism is not limited to agricultural land, and it runs the other way: under IC 32-26-2-15, when previously unenclosed property becomes enclosed and an existing fence thereby becomes a partition fence, the enclosing party pays 50% of the value of the existing fence. It does not let you make a neighbor contribute to a fence you are building.
• HOA approval is a separate track. Authority comes from the recorded covenants under IC 32-25.5, and architectural review committees govern fence approval in most Northeast Indiana subdivisions. Since the county imposes no fence setback, covenants and easements are often the only thing actually restricting placement.

Before anyone digs

Contact Indiana 811 and allow two full working days before excavation. IC 8-1-26 requires it, fence post holes and deck footings both count, and the marking is free.

What this means for your project

Work it in this order:

1. Find out whose rules apply. Unincorporated, Corunna or Spencerville means county zoning. Any other town means that town's ordinance and, for a deck, possibly two offices.
2. Confirm your zoning district — every height number depends on it.
3. For a fence, check the 4.5-foot and non-visual-barrier exemptions before assuming you need an ILP, and check whether a corner lot gives you a second front yard.
4. For a deck, plan on both permits, get the per-district setbacks, and settle the footing question with the Building Division before ordering concrete.
5. Give Indiana 811 its two working days.

Once the district, the height rule, and the permit question are settled, you can get your exact price for your address — one fixed number, with a vetted contractor put on the job to build it.

Last verified 2026-07-28 against the DeKalb County Unified Development Ordinance through amendment #104, the county's ILP and building permit pages, and 675 IAC 14-4.4.

Codes and ordinances change, and local officials have the final say. This page reflects what we verified on 2026-07-28 with the authorities cited above. Confirm current requirements with your city or county building department before you build — or let us verify them as part of your quote.