Building Department


Permit applications are available online or in the Civic Hall, 11 East State Street in Trenton.

The City of Trenton has contracted with National Inspection Corporation to provide building department services, including building plan reviews, inspections and HVAC service. Commercial and electrical service will be provided in the very near future upon receipt of State Certifications.

Please note, all building department correspondence (permit applications, plans, fees and all zoning department correspondence) must be submitted to the City of Trenton.

Questions regarding permitting requirements, fees, or similar topics should be directed to the City of Trenton at 513-988-6304 ext. 150.

Questions regarding the building code or to schedule inspections should be directed to NIC at 888-433-4642. NIC Inspectors will be available by telephone to respond to queries between 8:00 am and 5:00 pm, Monday through Friday.

The Butler County Health Department handles all plumbing permits within the city. The BCHD is located at 301 South Third Street in Hamilton and can be reached at 513-863-1770.


Ohio Utilities Protection Service
Call Before You Dig
By law, everyone MUST contact the Ohio Utilities Protection Service, 1-800-362-2764, at least 48 hours but no more than 10 working days (excluding weekends and legal holidays) before beginning ANY digging project