Zip Kit Building Codes? Often we are asked what building codes are our Kit Homes or Modular homes built to. We are not building manufactured homes or building to the HUD codes, we actually build to standard IRC and IBC building codes! This means our homes are built to the highest stand of quality and precision and not sacrificing value at all. In fact, we often see our homes go up in value since we build them to this code! To learn more, check out our website linked below! #zipkithomes #tinyhous