fireman at night

​Fire-Related Permits, Codes & Inspections

The Fire Prevention Division is responsible for the enforcement of city of Thornton laws, codes, and ordinances, including the International Fire Code and nationally recognized standards. Through plan review, inspections, meetings with citizens and design professionals, and continuing education, the Prevention staff works toward the protection of life and property from the effects of fire.

There are several different types of permits that are required by the Fire Prevention Bureau, they include but are not limited to the following. Please Note:  The forms and documents on this page are all in PDF format.

  • Automatic Fire Sprinkler System 
  • Kitchen Hood Extinguishing System
  • Spray Booth Extinguishing System
  • Fire Alarm System
  • Sprinkler System Monitoring
  • Other Fire Suppression Systems
  • Tank Installation Removal
  • Propane Exchange
  • Tent/Canopy
  • Recreational Fire/Burn

Electronic Plan Submittal

Adopted Codes as of September 6, 2016

Code Edition
International Fire Code 2015       
Thornton Fire Code Amendments 2015
International Building Code 2015
International Plumbing Code 2015
International Mechanical Code 2015
International Fuel Gas Code 2015
International Residential Code 2015
International Existing Building Code 2015
National Electric Code 2014
International Energy Conservation Code 2015
Standard for the Installation of Sprinkler Systems (NFPA 13) 2016
Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes (NFPA 13D) 2016
Standard for the Installation of Sprinkler Systems in Residential Occupancies up to and Including Four Stories in Height (NFPA 13R) 2016
Standard for the National Fire Alarm and Signaling Code (NFPA 72) 2016
Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems (NFPA 25) 2011

Business Fire Inspection Information

Thornton Fire Department personnel visit businesses each year to perform a routine annual Fire Safety Survey. The purpose of the survey is to verify that the use and maintenance of buildings comply with the important fire and life safety requirements of the International Fire Code, as adopted by the City of Thornton. Special attention is given to hazards that pose a serious fire and life safety threat to buildings, its occupants and its neighbors. The survey also provides firefighters with the opportunity to become familiar with buildings and businesses in order to respond to an emergency in a fast, safe and efficient manner.

Attached is a short list of common hazards and special items that are checked during the survey. The survey may reveal that a business has additional requirements. We ask businesses to take the time to make sure all of these items have been addressed so that the surveys are quick and informative. The Thornton Fire Department personnel conducting the survey can answer any questions that a business owner may have.

Remember, compliance with International Fire Code requirements is mandatory and contributes toward the goal of making the City of Thornton a safer place to live and work by reducing the loss of life and property from fire. Most hazards, when identified, will need to be addressed in a short time depending on the severity of the hazard(s). The Thornton Fire Department will make every effort to work with all businesses toward compliance. However, Fire Code violations are illegal, and serious violations or the need for repeated follow-up surveys may result in a criminal summons being issued for violation of the International Fire Code.