Columbus Home Addition Permits 2026
Columbus home addition permit fees, plan review, and required inspections for 2026.
Columbus Home Addition permit basics
- Building department: City of Columbus Department of Building and Zoning Services
- Department URL: https://www.columbus.gov/development/building-services
- Permit fee typical: $400 - $3,500 permit fee
- Plan review + approval: 5-10 business days
- Inspections required: 6-12 inspections (footing, framing, electrical, plumbing, mechanical, insulation, drywall, final)
Columbus Home Addition common issues
Setback compliance, FAR (floor-area ratio), structural review required, sewer/water capacity may need upgrade.
Columbus-specific permitting context
Columbus has no statewide GC license (Ohio has none) but does require trade-specific licenses for HVAC, plumbing, electrical, hydronics, refrigeration. Local registration required.
Climate factors: Cold winters with snow loads; humid summers; freeze-thaw cycles on foundations
Ohio licensing for Home Addition contractors
Ohio Construction Industry Licensing Board (HVAC, plumbing, electrical, hydronics, refrigeration only - no GC) - no statewide license, but Columbus likely requires local registration.
Mechanics lien deadline in Ohio: 60 days from completion (residential); 75 days (commercial). Preliminary notice: Notice of Commencement filed by owner; subs must file Notice of Furnishing within 21 days.
Columbus Home Addition sales tax
Ohio sales tax: 5.75% + local (~7.2% combined avg). Real property labor exempt. County permissive sales tax adds 0.25-1.5%.
Verify with the Ohio Department of Taxation.
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