“Signed June 14, House Bill 2439 will prohibit governmental entities from regulating building materials and construction methods for residential and commercial buildings. As long as builders follow the national model code, the building standard established for the entire nation, cities can no longer set a standard for a building’s aesthetic. The law will not affect developments that are in progress or completed.”

https://communityimpact.com/dallas-fort-worth/frisco/development-construction/2019/07/05/building-standards-in-frisco-to-change-under-recently-passed-law/