Building Code Information

The City and County of Broomfield has adopted the 2018 International Code series, effective April 15, 2020. This means that all permits issued as of April 15th will need to have plans designed, reviewed, and approved by the Building Division to meet the 2018 Codes. This will include the architectural plans, structural framing plans, structural foundation plans, soils reports, roof truss plans, and energy code documents. Below is a short summary of significant changes from the 2015 to the 2018 codes.

Building codes are updated every three years through an open consensus process to adapt to changing technology, current methods of construction and in reaction to situations where codes may have failed to protect the public in the past. Building inspection and plan review staff must constantly update their code knowledge and assist builders in meeting the most recent edition of these national codes, as adopted by the City and County of Broomfield.


2018 Code Significant Changes

Applicable Codes as of April 15th, 2020


  • 2018 International Building Code
  • 2018 International Residential Code
  • 2018 International Plumbing Code
  • 2018 International Fuel Gas Code
  • 2018 International Mechanical Code
  • 2018 International Fire Code
  • 2018 International Energy Conservation Code **
  • 2017 National Electric Code 
  • 2009 ICC A117.1 Accessible and Usable Buildings and Facilities
  • Link To Broomfield Title 15 Bldg Municipal Code


2018 Code Adoption Information 


​2020 NEC Adoption Information 


Beginning August 1, 2020 Broomfield will begin enforcing the 2020 National Electrical Code (based on the State of Colorado adoption). All permits issued as of August 1, 2020 will need to comply with the 2020 NEC.

  • All permits issued prior to August 2020 will fall under the 2017 NEC.
  • All permits issued on or after August 1st will be under the 2020 NEC.
  • Note to all Builders ~ please update all of your "cover sheets and electrical plans" to the 2020 NEC and provide an "Electronic" version (opposed to a hard copy) to the Building Department ASAP please. The existing hard copies will stay in the field and the inspectors will field verify items for the 2020 NEC. 
  • Inspectors will field verify items.
The link below is a summary of the significant changes to the 2020 NEC but is not a complete list of all the changes


Snow & Wind Loads


  • Design roof snow load: 30.0 psf
  • Assigned ground snow load: 30.0 psf
  • Design wind speed for structures depends on the risk category (RC) of the building
  • Wind structural design exposure classification is dependent upon location; either B or C - designer shall assess
  • Asphalt shingles shall be ASTM D3161 Class F or ASTM D7158 Class H or G
  • Frost depth: 36 inches below finished grade