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Codes and Standards

Effective Codes - July 17, 2017

All construction within the City of Fort Collins shall comply with following codes adopted by City Council, July 17, 2017:

  • 2015 International Building Code with local Amendments
  • 2015 International Residential Code with local Amendments
  • 2015 International Energy Conservation Code with local Amendments
  • 2015 International Mechanical Code with local Amendments
  • 2015 International Fuel Gas Code with local Amendments
  • 2015 International Plumbing Code
  • 2017 National Electrical Code (effective July 3, 2017)
  • 2006 International Property Maintenance Code with local Amendments
  • Accessibility: State Law CRS 9-5 and ICC A117.1-2009
  • Snow Load - Live Load: 30 PSF / Ground Snow Load 30 PSF
  • Frost Depth 30 inches
  • Wind Load: 129 mph Vult, or 100 mph Vasd - Exposure B
  • Seismic Design Category B

Work Exempt from Permit Requirements

Energy Code Compliance

Commercial (Including multi-family buildings 4 stories and taller)

2015 IECC and local Amendments – use Commercial Provisions

Multi-family (Apartments & Condos 3 stories and less)

See 2015 IECC and local Amendments – use Residential Provisions

Duplex and Single Family Residence

2015 IRC, Chapter 11 and local Amendments

4 ways to comply:

  1. Prescriptive Method
  2. Total UA Alternative (REScheck) calculated using 2015 IECC
  3. SPA (Simulated Performance Alternative)
  4. ERI (Energy Rating Index)