Curtain Walls Level

Hi everybody,
I’m trying to use Dynamo for a quality check of the Revit model. One of this check is about to verify if all the elements are placed at a certain level. It works for almost all the categories I’m using at the moment, but not for Curtain Walls. It looks like if the value of the placement level of curtain walls is “null”. Anyone know how to solve this problem?

get Base Constraint?


I’m not sure if you should use a dynamo for this.

If I were you, I would try to use the schedule and I think it would solve the problem more quickly.


Thanks to everyone for replying me. At the end I’ve solved in another way, by filterin through a boolean mask the walls and dividing them in curtain walls and base wall.