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Deck Construction · Franklin County, Ohio
In Ohio, a Deck Construction requires a building permit.
Franklin County (Columbus) works under the 2019 Residential Code of Ohio (RCO), a statewide code, Section 102.10(9) exempts small decks and Section 507 governs deck construction. A building permit is required once a deck exceeds the small-deck exemption, and because most decks are attached and over 30 inches, most need a permit. The distinctive Columbus rule is separate from the building permit: the City of Columbus requires ZONING approval for any deck exceeding 169 square feet, regardless of height or whether it is attached, to confirm setbacks, lot coverage, and easements. A defining climate factor: Ohio's frost depth in the Columbus area is 32 inches, so all deck footings must reach at least 32 inches below finished grade, the footing inspection happens after post holes are dug to frost depth and before concrete. The post must bear on a minimum of 6 inches of concrete (Table 507.3.1). Framing plans must show ledger size and bolting method, joist size/span/spacing, and beam size a Plans are reviewed under the Franklin County Building Dept / City of Columbus / 2019 Resi code (IRC 2019 RCO (2018 IRC +); apply through Franklin County Building Department before work begins.
Source: Franklin County Building Dept / City of Columbus / 2019 Resi, IRC 2019 RCO (2018 IRC + · County-specific · Verified 2026 by StateDataIndex
Building a deck typically requires a permit if it is attached to the house, over 30 inches off the ground, or exceeds a certain square footage (often 200 sq ft).
Because of severe winter weather in Ohio, any exterior structures or footings must be set below the local frost line to prevent shifting, as mandated by the Ohio Building Code.
Ohio utilizes a mix of township and municipal zoning, with state law providing specific exemptions for agricultural activities from local zoning interference. Fortunately, Ohio maintains relatively builder-friendly regulations, keeping base permit fees competitive.
Permit fees vary by jurisdiction and by your project's valuation, so there is no single fixed figure for Franklin County. We only publish fees confirmed by real homeowners — none have been reported here yet.
Confirm the current fee directly with Franklin County Building Department ((614) 525-3166). If you have paid for a permit here, you can add it here to help others.
Office: Franklin County Building Department
Address: 150 S Front St, Columbus, OH 43215, USA
Phone: (614) 525-3166
Source: official Franklin County government records. Hours and procedures can change — call ahead to confirm.
In Franklin County, you can begin your application online through the county's permit portal, or submit blueprints and a property survey in person. Including your contractor's Ohio Construction Industry Examining Board license number helps avoid rejections.
When applying for a Deck Construction permit, you or your contractor will generally need to submit the following documentation for the city's review:
Key code points for a Deck Construction in Franklin County: Decks higher than 30 inches above grade legally require guardrails (typically 36 inches high), and stairs with 4 or more risers require a handrail.
Typical processing time: a few days to several weeks, depending on current workload and the season. Contact Franklin County Building Department for a current estimate.
Building without authorization is considered a code violation. The local government can issue a Stop Work Order, forcing you to halt construction immediately. You may be subject to retroactive permit fees (often double the original cost), daily fines, or even a mandate to tear down the unpermitted work at your own expense.
Yes. Ohio generally allows property owners to act as their own general contractor under an Owner-Builder exemption. If you take this route, you assume full legal and financial liability and must ensure all work complies with the Ohio Building Code.
Permit fees vary by jurisdiction and by your project's valuation, so Franklin County does not publish a single fixed figure. Confirm the exact fee with the local building department before applying.
Processing time in Franklin County varies by season and current application volume at the building department; contact Franklin County Building Department for a current estimate.
You can apply through the Franklin County Building Department or online via the county permit portal. For questions, call (614) 525-3166.
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