Indianapolis requires a building permit for decks over 30 inches above grade or over 200 sq ft. Patios at grade do not need permits. Covered structures always need permits. Guardrails required on decks over 30 inches above grade.
Indianapolis requires a building permit for decks that are more than 30 inches above adjacent grade or exceed 200 square feet in area per the Indiana Residential Code. Small, low-level decks (under 200 sq ft and 30 inches or less above grade, not attached to dwelling) may be exempt. Uncovered concrete or paver patios at grade level do not require building permits. Covered patios, pergolas with roofs, and screened porches require a building permit. Deck plans must show footings, framing, guardrail details, and stairway specifications. Guardrails are required on decks more than 30 inches above grade — minimum 36 inches high. Permits are submitted through Accela or BNS. Inspections are required for footings, framing, and final approval.
Building without a permit: stop-work order and fines. May require retroactive permitting.
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