diff --git a/src/Mod/Arch/Resources/ui/preferences-ifc.ui b/src/Mod/Arch/Resources/ui/preferences-ifc.ui
index 8ef7fcbff556..b3ab25354121 100644
--- a/src/Mod/Arch/Resources/ui/preferences-ifc.ui
+++ b/src/Mod/Arch/Resources/ui/preferences-ifc.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>463</width>
-    <height>883</height>
+    <height>910</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -305,6 +305,22 @@ they will be treated as one.</string>
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="Gui::PrefCheckBox" name="checkBox_22">
+        <property name="toolTip">
+         <string>IFC files can contain unclean or non-solid geometry. If this option is checked, all the geometry is imported, regardless of their validity.</string>
+        </property>
+        <property name="text">
+         <string>Allow invalid shapes</string>
+        </property>
+        <property name="prefEntry" stdset="0">
+         <cstring>ifcAllowInvalid</cstring>
+        </property>
+        <property name="prefPath" stdset="0">
+         <cstring>Mod/Arch</cstring>
+        </property>
+       </widget>
+      </item>
       <item>
        <layout class="QHBoxLayout" name="horizontalLayout_13">
         <item>
diff --git a/src/Mod/Arch/importIFC.py b/src/Mod/Arch/importIFC.py
index 5149d64e0982..f81887a5481c 100644
--- a/src/Mod/Arch/importIFC.py
+++ b/src/Mod/Arch/importIFC.py
@@ -162,7 +162,8 @@ def getPreferences():
         'CREATE_CLONES': p.GetBool("ifcCreateClones",True),
         'IMPORT_PROPERTIES': p.GetBool("ifcImportProperties",False),
         'SPLIT_LAYERS': p.GetBool("ifcSplitLayers",False),
-        'FITVIEW_ONIMPORT': p.GetBool("ifcFitViewOnImport",False)
+        'FITVIEW_ONIMPORT': p.GetBool("ifcFitViewOnImport",False),
+        'ALLOW_INVALID': p.GetBool("ifcAllowInvalid",False)
     }
 
     if preferences['MERGE_MODE_ARCH'] > 0:
@@ -403,9 +404,9 @@ def insert(filename,docname,skip=[],only=[],root=None,preferences=None):
             shape.importBrepFromString(brep,False)
             shape.scale(1000.0)  # IfcOpenShell always outputs in meters, we convert to mm, the freecad internal unit
 
-            if shape.isNull():
+            if shape.isNull() and (not preferences['ALLOW_INVALID']):
                 if preferences['DEBUG']: print("null shape ",end="")
-            elif not shape.isValid():
+            elif not shape.isValid()  and (not preferences['ALLOW_INVALID']):
                 if preferences['DEBUG']: print("invalid shape ",end="")
             else: