diff --git a/src/Mod/Arch/ArchMaterial.py b/src/Mod/Arch/ArchMaterial.py
index 0096da62a0..8ff691bd17 100644
--- a/src/Mod/Arch/ArchMaterial.py
+++ b/src/Mod/Arch/ArchMaterial.py
@@ -259,6 +259,14 @@ class _ArchMaterial:
         obj.addProperty("App::PropertyPercent","Transparency","Arch",QT_TRANSLATE_NOOP("App::Property","The transparency value of this material"))
         obj.addProperty("App::PropertyColor","Color","Arch",QT_TRANSLATE_NOOP("App::Property","The color of this material"))
 
+    def isSameColor(self,c1,c2):
+        
+        if round(c1[0],6) == round(c2[0],6):
+            if round(c1[1],6) == round(c2[1],6):
+                if round(c1[2],6) == round(c2[2],6):
+                    return True
+        return False
+
     def onChanged(self,obj,prop):
 
         d = obj.Material
@@ -266,7 +274,7 @@ class _ArchMaterial:
             if "DiffuseColor" in obj.Material:
                 c = tuple([float(f) for f in obj.Material['DiffuseColor'].strip("()").split(",")])
                 if hasattr(obj,"Color"):
-                    if obj.Color != c:
+                    if not self.isSameColor(obj.Color,c):
                         obj.Color = c
             if "Transparency" in obj.Material:
                 t = int(obj.Material['Transparency'])
@@ -296,11 +304,10 @@ class _ArchMaterial:
             d["Name"] = obj.Label
         elif prop == "Color":
             if hasattr(obj,"Color"):
-                val = str(obj.Color[:3])
                 if "DiffuseColor" in d:
-                    if d["DiffuseColor"] == val:
+                    if self.isSameColor(tuple([float(f) for f in d['DiffuseColor'].strip("()").split(",")]),obj.Color[:3]):
                         return
-                d["DiffuseColor"] = val
+                d["DiffuseColor"] = str(obj.Color[:3])
         elif prop == "Transparency":
             if hasattr(obj,"Transparency"):
                 val = str(obj.Transparency)
@@ -331,10 +338,10 @@ class _ArchMaterial:
                 d["Description"] = val
         if d and (d != obj.Material):
             obj.Material = d
-            if FreeCAD.GuiUp:
-                import FreeCADGui
+            #if FreeCAD.GuiUp:
+                #import FreeCADGui
                 # not sure why this is needed, but it is...
-                FreeCADGui.ActiveDocument.resetEdit()
+                #FreeCADGui.ActiveDocument.resetEdit()
 
     def execute(self,obj):
         if obj.Material:
diff --git a/src/Mod/Arch/ArchSite.py b/src/Mod/Arch/ArchSite.py
index f1148c758f..f295e6c51c 100644
--- a/src/Mod/Arch/ArchSite.py
+++ b/src/Mod/Arch/ArchSite.py
@@ -370,6 +370,8 @@ class _Site(ArchFloor._Floor):
             obj.addProperty("App::PropertyBool","RemoveSplitter","Site",QT_TRANSLATE_NOOP("App::Property","Remove splitters from the resulting shape"))
         if not "OriginOffset" in pl:
             obj.addProperty("App::PropertyVector","OriginOffset","Site",QT_TRANSLATE_NOOP("App::Property","An optional offset between the model (0,0,0) origin and the point indicated by the geocoordinates"))
+        if not "IfcProperties" in pl:
+            obj.addProperty("App::PropertyMap","IfcProperties","Site",QT_TRANSLATE_NOOP("App::Property","Stores IFC properties"))
         if not hasattr(obj,"Group"):
             obj.addExtension("App::GroupExtensionPython", self)
         self.Type = "Site"