Solved
Career lots missing
In the get to work expansion pack where you go to work with your sim, quite often when I go, the lot is empty. Since it is not one of the accessible lots that you can build on, there isn't anything I...
Sounds like you have this issue:
http://answers.ea.com/t5/The-Sims-4/INFO-REQUEST-Houses-Lots-disappear/m-p/4620279#U4620279You can edit a workplace lot, just go to work and use, ctrl+shift+c and then 'bb.enablefreebuild' that will allow you to build on that lot.
