[notahacker]

if you're happy with something a little less AI and a little more retro in UX, the freeware Sweethome 3D will let you draw and redraw walls/partitions/doors to precise dimensions as much as you like and then fill with furniture to the arrangements you like

sweethome3d.com

[damascus]

That looks like a great addition to the overall design portfolio. Thanks for sharing! I was hoping for some AI to show me ideal (or at least a few good) layouts instead of me having to come up with them myself but at least this helps get the feel for them in 3D.