Quote: Originally posted by JoleneM
That's a frieze or a wall that has been shortened with constrainfloorelevation and then raised to make a point, and then the area beneath it was fixed to flat without fixing the "roof" itself.
It is completely, utterly impossible in Sims 4, as there is no such cheat, and no terrain modifying. The closest thing would be building a room inside a roof but you would not be able to edit the underside of the roof and only tiles more than 3 from the edge would be accessible.