Construction Codes

Effective May 1, 2022


Please note that effective May 1, 2022, the Town of Flower Mound will require all building-permit applications to comply with the following construction codes:

For Residential Construction


  • 2021 IECC (International Energy Conservation Code)
  • 2021 IRC (International Residential Code)
  • 2021 ISPSC (International Swimming Pool and Spa Code)
  • 2020 NEC (National Electrical Code) (effective July 1, 2021)

For Commercial Construction


  • 2021 IBC (International Building Code)
  • 2021 IECC (International Energy Conservation Code)
  • 2021 IMC (International Mechanical Code)
  • 2021 IPC (International Plumbing Code)
  • 2021 ISPSC (International Swimming Pool and Spa Code)
  • 2020 NEC (National Electrical Code) (effective July 1, 2021)
To view these codes free, click here.