Do I need a permit for a fence in
Dunwoody, Georgia?

Dunwoody fence permits — the key details

Dunwoody's fence height limit is 6 feet for solid fences (wood, vinyl, metal panels) in side and rear yards. Masonry fences (brick, stone, block) are capped at 4 feet unless you obtain a variance or live in a specific zoning district that allows higher. Front-yard fences are limited to 4 feet solid or 6 feet if open-weave (chain-link with visible line-of-sight through it). The critical rule is corner-lot sight triangles: if your lot is on a corner, Dunwoody enforces a clear-sight triangle from both road intersections, typically 25–35 feet back from the corner, and nothing solid taller than 3 feet is permitted in that zone. This rule is codified in the Dunwoody Zoning Ordinance Chapter 27-2 and is enforced strictly during plan review. Many homeowners think they can build a 6-foot fence on their rear corner lot because it's 'in back,' but if any portion of the fence is visible from the public right-of-way at the corner, the city will require a revision or denial. Check your lot survey or use the city GIS tool to confirm if your property is flagged as a corner lot before submitting a permit.

Pool barriers are always required to have a permit and must comply with IBC Section 3109 and the Georgia Swimming Pool Safety Act. A pool barrier fence must be at least 4 feet tall, have vertical posts no more than 4 inches apart, horizontal members (rails) not exceeding 1.75 inches in height, and a self-closing, self-latching gate with the latch at least 54 inches above ground. Dunwoody requires a footing detail drawing for pool barriers over 4 feet (masonry or reinforced wood) showing depth (minimum 12 inches frost depth in Dunwoody's zone 3A climate), concrete specifications, and post embedment. The inspection sequence is: pre-construction footing inspection (before concrete is poured), then final inspection after the fence is complete and the gate is installed and operational. If the gate mechanism fails inspection (doesn't self-close or self-latch reliably), you must replace it before final sign-off. Pool barriers are high-liability, so the city inspector will take 15–20 minutes on the final walk; plan for a second visit if corrections are needed.

Non-pool-barrier fences under 6 feet in rear or side yards, and made of wood, vinyl, or chain-link, are exempt from permitting in Dunwoody if they are not on a corner lot and not replacing a prior fence in a sight-triangle zone. This exemption is substantial — it means a homeowner can self-construct a standard residential fence without filing, paying, or waiting for approval, provided the fence stays below 6 feet and the property is not a corner lot or in a sight-triangle overlay. However, the property still must comply with setback requirements (usually 5–10 feet from the property line in side yards, depending on zoning district) and cannot encroach on recorded easements (utility, drainage, or access easements are common in Piedmont subdivisions). If a utility easement runs across your back property line — common for gas, electric, or stormwater — you cannot build a fence on the easement line without written consent from the utility company (Georgia Power, municipal water authority, etc.). Many homeowners discover this only after the fence is built; the utility then requires removal, costing $2,000–$5,000. Always request an easement search from the Dunwoody GIS or DeKalb County records before construction.

Dunwoody's online permit portal requires a site plan for any permitted fence application. The site plan must show the property boundary (with dimensions from the county tax record or your survey), the location of the proposed fence line (distance in feet from the house, the side property line, and the rear property line), the height and material, and for corner lots, confirmation that the fence is outside the sight triangle (or a variance request if it's not). The portal does not allow photo-only submissions — you must provide a scaled drawing, even if crude. For over-the-counter exempt fences, no site plan is required, but the city's code-enforcement inspector can challenge the exemption on-site if the fence appears to violate height or sight-line rules. If challenged, you must then file a permit retroactively. To avoid this, take a photo of your property lines (spray-paint the line before building, or use GPS) and keep a record. Dunwoody's permit portal is at the city website under 'Development Services'; you can apply online, upload documents, and track status 24/7. Processing time for permitted fences is 3–5 business days; exempt fences do not require an application.

Material choice affects permit classification. Wood fences (pressure-treated lumber, cedar, pine) are the most common and are permittable at 6 feet in rear/side yards. Vinyl fencing (PVC, composite) is treated identically to wood for height and setback purposes. Chain-link is fully permittable and is open-weave, so it does not block sight lines — a 6-foot chain-link fence is often allowable even on corner lots if the sight-triangle rule is interpreted as requiring visibility *through* the fence, not just clear airspace. Metal panels (steel, aluminum) are permittable and follow wood rules. Masonry (brick, stone, block) is stricter: 4-foot limit in rear/side yards unless reinforced or engineered. If you go masonry, Dunwoody requires a footing detail, engineer's stamp (for walls over 4 feet), and a footing inspection before you backfill. Masonry costs $40–$80 per linear foot plus labor; permits for masonry run $150–$250. If your neighbor has a masonry fence and you want to match it, request a variance from the city planning staff; variances are reviewed in 2–4 weeks and are often granted if the existing fence predates current code. Do not assume a neighbor's fence is legal; many older masonry fences in Dunwoody predate current setback rules and would not be permitted today.

Three Dunwoody fence (wood/vinyl/metal/chain-link) scenarios

Sight-triangle enforcement and corner-lot surprises in Dunwoody

Dunwoody's sight-triangle rule is the single biggest fence-permit gotcha in the city. The rule is codified in Zoning Ordinance 27-2-7 and requires that any corner lot must maintain an unobstructed sight triangle at intersections to prevent vehicle collisions. The sight triangle is typically 25 feet along each road from the corner, creating a 25x25 (or larger on higher-speed roads like Chamblee Dunwoody Road) clear zone. Within this zone, nothing solid taller than 3 feet is permitted — not fences, not hedges, not landscaping. This rule is not negotiable, and the city uses parcel mapping and GIS tools to flag corner lots during plan review. If you submit a permitted fence application and the fence is marked inside the sight triangle on your site plan, the planning department will issue a plan-review comment requiring you to relocate the fence, redesign it as open-weave, or apply for a variance.

The surprise: many homeowners don't realize their lot is a corner lot until they apply for a permit. A 'corner lot' is legally defined as a lot that abuts two public rights-of-way (roads, streets, or alleys), even if one of those roads is a low-traffic side street. A lot that fronts a cul-de-sac and abuts a drainage easement (which may look like an alley) can be flagged as a corner lot. Check the DeKalb County GIS (dekalb.gasearch.org) or request a corner-lot confirmation letter from Dunwoody Development Services. If you are flagged, you have three choices: (1) relocate the fence outside the sight triangle (often impractical for front-yard aesthetics), (2) use open-weave materials (chain-link, decorative metal railing) that allow sightlines, or (3) apply for a variance from the Planning & Zoning Board. Variances are reviewed by the board in a public meeting (typically 4–6 weeks) and require you to argue hardship or unique site conditions. Most fence variances in Dunwoody are denied unless you can prove that the lot's unusual shape or prior non-conforming structure justifies an exception.

Dunwoody's code-enforcement team actively patrols for sight-triangle violations. If a fence is built in a sight triangle without a permit (or with a permit that incorrectly omitted the sight-triangle flag), the city can issue a stop-work order and require removal. Removal is costly and disruptive; plan for $2,000–$3,500 in demolition and hauling. To avoid this, always request a corner-lot verification before you design your fence. If you are on a corner lot and want a solid fence, budget for a variance application (2–4 weeks, $150–$300) or pivot to open-weave materials immediately.

Masonry fences, footing depth, and Piedmont clay challenges

Masonry fences (brick, stone, concrete block) are popular in Dunwoody's upscale neighborhoods like Spalding Harris and Wildwood, but they trigger stricter permit requirements and longer timelines. Dunwoody requires a footing detail for any masonry fence over 4 feet, and an engineer's stamp (PE seal) if the wall is over 4 feet or if you're using non-standard materials. The footing must meet frost-depth requirements: Dunwoody is in USDA Hardiness Zone 3A with a 12-inch frost depth (the depth to which the ground freezes in winter). Any footing shallower than 12 inches risks frost heave — the ground expands as it freezes, lifting the fence and cracking mortar joints. If you hire a contractor and they propose a 6-inch footing 'because that's standard,' push back; the city will require 12 inches minimum, and a shallow footing will fail in 3–5 years.

Dunwoody's soil is predominantly Piedmont red clay (Cecil soil series) with pockets of sandy coastal-plain soils and granite bedrock in the north end. Red clay has high shrink-swell potential: it expands when wet and contracts when dry, creating differential settlement under masonry. The city inspector will require a footing detail that accounts for this. Standard practice is 12 inches of excavation, 4–6 inches of compacted gravel (for drainage and bearing), then 6 inches of concrete with #4 rebar at 16 inches on center, with the concrete extending 2–3 inches above grade to prevent water infiltration. If your lot is on a slope or in a floodplain (check the FEMA flood map and DeKalb County drainage studies), the footing must be deeper and may require engineer design. Costs for masonry with proper footing and engineer review typically run $40–$80 per linear foot installed, plus $1,500–$3,000 in engineering and permits. Do not cut corners on the footing; the city will require a footing inspection before you backfill, and a shallow footing will be flagged and must be corrected.

Dunwoody's frost depth of 12 inches is deeper than some neighboring cities (Atlanta, for example, typically uses 8 inches), so masonry fences built in Dunwoody may exceed the depth required in adjacent jurisdictions. This matters if you're replacing a fence that predates current code: an old masonry fence on a 6-inch footing may still be standing but will require a 12-inch footing if you rebuild it under a new permit. The city will not approve a replacement masonry fence on the old footing depth unless you provide an engineer's letter stating the existing footing is adequate (rare). Budget for a complete rebuild with new footing if you're replacing old masonry. If you're building new masonry in a neighborhood where all the old fences are shallow, you are not required to match the old fences; you must meet current code.

Common questions