The Arch workbench provides modern BIM workflow to FreeCAD, with support for features like IFC support, fully parametric architectural entities such as walls, structural elements or windows, and rich 2D document production. The Arch workbench also feature all the tools from the Draft Workbench.
These are tools for creating architectural objects.
These are tools for modifying architectural objects.
These are additional tools to help you in specific tasks.
The Arch module can be used in python scripts and macros using the Arch Python API functions.