Creating radius on a foundation wall with 2 different thicknesses

[brianwclayton1969]

Good day, I'm trying to create a radius using a foundation wall, the two walls are different thicknesses. One wall thickness is 6" and the connecting wall is 2'-0" thick. See attached drawings. 

This may not be possible using the Structural Wall > Foundation Wall, instead use the Architectural Wall > Foundation Wall where the wall design can be sketched.

Thanks

[ToanDN]

Create an in place void to cut the corner of the wider foundation wall to create the radius.  

https://knowledge.autodesk.com/community/screencast/2e73690c-e6bd-4423-84ca-1760e6e00905