Columbus follows the Ohio Residential Code and Ohio Fire Code for smoke alarms. Every dwelling unit must have interconnected alarms in each sleeping room, outside sleeping areas, and on every level, with hardwiring required in new construction and substantial remodels.
Ohio has adopted the Residential Code of Ohio (RCO) based on the IRC, which Columbus enforces through its Department of Building and Zoning Services. New homes built under current code must have 120-volt hardwired, battery-backup smoke alarms interconnected so all alarms sound when any one activates. Required locations include each bedroom, the hallway outside bedrooms, and at least one alarm on every story including basements but excluding crawl spaces and uninhabited attics.
When a substantial alteration or addition is permitted, existing homes must be brought up to current smoke-alarm standards in the work area and on the same floor. Routine repairs do not trigger upgrade requirements. Battery-only alarms remain acceptable in existing homes that predate the hardwire requirement, but 10-year sealed-battery alarms are strongly recommended.
Rental units must have working smoke alarms at the start of every tenancy. Carbon monoxide alarms are separately required in dwellings with fuel-burning appliances or attached garages under ORC §3781.105. Tampering with or removing alarms in a rental is prohibited under Columbus code.
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact Columbus code enforcement directly for current fines, enforcement procedures, and hearing options.
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