Short answer: yes — you need a permit to build a deck in Delaware County, Ohio. And there’s a step most homeowners miss: in addition to the county building permit, most townships require a zoning permit first. Here’s exactly how it works for Sunbury and the surrounding area, based on the Delaware County Department of Building Safety’s residential deck requirements.
We handle this for you. When Sunbury Decks & Patios builds your deck, we pull the county building permit and handle the township zoning step and inspections — so your deck is done right and to code. This guide is here so you know what’s involved.
Step 1: Township zoning permit (first)
Zoning is handled at the township level, not the county. In most townships you need a zoning permit before the county will issue a building permit. Zoning is what governs setbacks — how far your deck must sit from property lines — which vary by township, zoning district, and your subdivision’s plat. If you’re in an HOA community (common in the Galena new-builds like Vinmar Farms, Cheshire Woods, and Harbor Pointe), you may also need architectural review (ARC) approval on top of the zoning and building permits.
Note: Sunbury’s building function rolled into the Delaware County Department of Building Safety on October 1, 2022, but zoning still runs through your township (for example, Trenton Township or Berkshire Township).
Step 2: Delaware County building permit
To apply for the building permit, the county requires:
- The township zoning permit (from Step 1, required in most townships)
- Two plot plans showing your house and the deck’s location on the lot
- Two building plans of the deck — layout, post locations, concrete footing sizes, and post-and-beam connection details
Permit fees
| Fee | Amount |
|---|---|
| Building permit (base) | $75.00 + $2.00 per 100 sq ft of deck |
| Plan review (non-refundable) | $35.00 + $1.00 per 100 sq ft |
| Application (non-refundable) | $25.00 |
| State assessment | 1% of total |
Fees are from the county’s published deck requirements; confirm current amounts with Delaware County Building Safety before applying.
Step 3: Inspections
- Post-hole inspection — required after the footing holes are dug and before any concrete is poured (holes must be clear of debris).
- Frame inspection — required if the bottom of the deck joists is less than 36 inches above grade, called before the decking goes on. If the joists are more than 36 inches above grade, the frame inspection can be combined with the final.
- Final inspection — all handrails, guardrails, and steps must be in place.
Footings and the Ohio frost line
Ohio code requires deck footings to extend below the local frost line and rest on undisturbed soil. In central Ohio that generally means footings in the range of about 32–36 inches deep — but the exact figure for your lot should be confirmed with Delaware County Building Safety. Proper frost-depth footings are what keep a deck from heaving and shifting over Ohio winters, and they’re exactly what the post-hole inspection checks.
Guardrails and stairs (Ohio code)
Ohio’s residential code typically requires a guardrail anywhere the deck is more than 30 inches above grade, a minimum 36-inch guard height, and baluster spacing that won’t allow a 4-inch sphere to pass. Confirm the exact specifications for your project with the county.
Delaware County Building Safety: 1610 State Route 521, Delaware, OH 43015 · (740) 833-2200 · inspections (740) 833-2222. Always verify current fees, footing depth, and setbacks for your specific lot — or let us handle the whole process for you.