SpaceHeightByElement

import clr
import sys
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

# Import Element wrapper extension methods
clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)

# Import DocumentManager and TransactionManager
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

doc = DocumentManager.Instance.CurrentDBDocument


outList = list()
elements = IN[0]

for elem in elements:
    unwElem = UnwrapElement(elem)
    elemPhase = doc.GetElement(unwElem.CreatedPhaseId)
    #проверка, можно ли получить с элемента Спейс
    try:
        elemSpace = unwElem.Space[elemPhase]
        #проверка, есть ли у элемента Спейс
        if elemSpace:
            h = elemSpace.LimitOffset
        else:
            h = None
    except:
        h = None

    outList.append(h)

OUT = outList