​Fire Restrictions

Burns are allowed in Thornton with the previous existing conditions:

Persons with a VALID WRITTEN PERMIT from the Fire Prevention Bureau that specifically authorizes the otherwise prohibited act.

Open burning is an outdoor fire where wood or any combustible materials are burned for agricultural, training, entertainment, or other purposes approved by the Thornton Fire Department. Open burning is allowed at single-family homes, duplexes, and townhomes without a permit, provided these regulations are met:

  • Any federal, state, or local officer or member of an organized rescue or firefighting force in the performance of an official duty.
  • Any fires contained within a liquid fuel or gas stove, fireplaces within buildings, and charcoal or propane grill fires at private residences.
  • Only small fires are allowed (maximum 3-foot diameter by 2-foot height) that are contained in a non-combustible chiminea, outdoor fireplace, fire pit, or other approved method.

All openings in the container must be covered with wire mesh or other screening materials
that will prevent the passage of sparks and embers.

  • Fires must be kept at least 15 feet from structures.
  • Fires must be constantly attended.
  • The burning of yard waste, leaves, garbage, or other rubbish is prohibited in the City of Thornton, unless specifically exempted.

All other open burning requires a permit from the Thornton Fire Department.