If you download this make sure you have a sim in the scientist career and the get to work expansion pack. Once you have both of those ready you need to join your sims in a work day and build on the future sim labs lot replacing it with this one or any other one in the gallery. :) Enjoy!! #FutureSimsLabs #Scientist Btw I think there are 2 bathrooms but this place is huge so idk... sorry!