Atlanta Deck Permit

What's Required in Atlanta

• Building permit required for all decks attached to the house or over 30 inches high
• Exempt if freestanding, under 200 sq ft, and under 30 inches above grade
• Structural plans must be certified by an Engineer of Record due to 2026 city policy
• Guardrails required for any deck surface 30 inches or more above grade
• Footings must reach a depth determined by the local frost line (typically 12 inches)
• Tree impact plan mandatory if construction occurs within critical root zones

When a Deck Needs a Permit in Atlanta

Whether a deck needs a building permit in Atlanta usually comes down to how high and how big it is. Low, ground-level platforms are often exempt, while raised decks need a permit — in Atlanta, the line is a deck floor more than 30 inches above grade (where guardrails and footings come into play). Attached decks almost always require a permit because they tie into the house’s structure, and even a freestanding deck usually needs one once it passes the size or height cutoff. Check the requirements above before you build, and note that zoning setbacks from property lines apply regardless.

Do You Need a Permit to Repair or Replace a Deck in Atlanta

It depends on how much you’re changing. Swapping worn decking boards or railing on the same layout is usually treated as maintenance and often doesn’t require a permit in Atlanta. But replacing the structural framing (joists, beams, posts, or footings), rebuilding the deck, enlarging it, or changing its height generally does — at that point it’s regulated like new construction. When in doubt, describe the scope to the City of Atlanta Department of City Planning, Office of Buildings before starting; the requirements above outline what Atlanta expects.

How to Get a Deck Permit in Atlanta

Frequently Asked Questions