IfcOpenShell

IfcBlender: An ifc importer for Blender

Determine if your copy of Blender is 32bit or 64bit
Download the appropriate version of IfcBlender
0.4.0: the latest stable release
- Windows
- IfcBlender for Blender 2.73 32bit Windows
- IfcBlender for Blender 2.73 64bit Windows
- Mac OSX (built using the 10.6 SDK)
- IfcBlender for Blender 2.73 32bit OSX
- IfcBlender for Blender 2.73 64bit OSX
- Linux (suits most recent distributions)
- IfcBlender for Blender 2.73 32bit Linux
- IfcBlender for Blender 2.73 64bit Linux
0.5.0 preview 2: a preview release with additional functionality
- Windows
- IfcBlender for Blender 2.78 32bit Windows
- IfcBlender for Blender 2.78 64bit Windows
- Mac OSX (built using the 10.6 SDK)
- IfcBlender for Blender 2.78 64bit OSX
- Linux (suits most recent distributions)
- IfcBlender for Blender 2.78 32bit Linux
- IfcBlender for Blender 2.78 64bit Linux
Install the Blender add-on by clicking on File > User Preferences > Add-ons > Install from File... and by pointing Blender to the archive downloaded above
Enable the Blender add-on by clicking on File > User Preferences > Add-ons > Import-Export > Import-Export: IfcBlender

Download and compile the sources of Open CASCADE, or use your package manager to install the libraries
You can also use the Open CASCADE Community Edition, it provides a CMake file for easy configuration
Download and compile the sources of IfcOpenShell

For 0.4: Move __init__.py, _IfcImport.so and IfcImport.py into a new folder in your blender addons folder
For 0.5: Move the built artefacts along with the files in the ifcopenshell-python and ifcblender repository folders into a new folder in your blender addons folder

Enable the Blender add-on by clicking on File > User Preferences > Add-ons > Import-Export > Import-Export: IfcBlender

You can now import .ifc files by selecting Industry Foundation Classes (.ifc) from the File > Import menu