2D using Autodesk - AutoCAD 2014, but our guys are upgrading, 2017 this time I think, it's just more of the same, we'll lose a lot of time at the beginning while searching for the old functions, they'll still be there but under a new folder / command / different icon.... been using it since release R12...... 
3D we use mostly Navisworks, or PDMS, but they're not really "domestic" use....

3D we use mostly Navisworks, or PDMS, but they're not really "domestic" use....