diff --git a/src/Mod/Arch/ArchComponent.py b/src/Mod/Arch/ArchComponent.py
index 0fc0ff8cce..96a6fd9cc3 100644
--- a/src/Mod/Arch/ArchComponent.py
+++ b/src/Mod/Arch/ArchComponent.py
@@ -25,9 +25,8 @@ __title__="FreeCAD Arch Component"
 __author__ = "Yorik van Havre"
 __url__ = "http://www.freecadweb.org"
 
-import FreeCAD,Draft,ArchCommands,math,sys,json,os,ifcopenshell,ArchIFC
+import FreeCAD,Draft,ArchCommands,math,sys,json,os,ArchIFC,ArchIFCSchema
 from FreeCAD import Vector
-from ArchIFC import ifcProducts, ifcTypes
 if FreeCAD.GuiUp:
     import FreeCADGui
     from PySide import QtGui,QtCore
@@ -48,8 +47,7 @@ else:
 #  This module provides the base Arch component class, that
 #  is shared by all of the Arch BIM objects
 
-# Possible roles for FreeCAD BIM objects
-IfcRoles = ['Undefined']+[''.join(map(lambda x: x if x.islower() else " "+x, t[3:]))[1:] for t in ifcProducts.keys()]
+IfcRoles = ['Undefined']+[''.join(map(lambda x: x if x.islower() else " "+x, t[3:]))[1:] for t in ArchIFCSchema.IfcProducts.keys()]
 
 def convertOldComponents(objs=[]):
 
@@ -1183,10 +1181,10 @@ class ComponentTaskPanel:
             return
         if not isinstance(self.obj.IfcProperties,dict):
             return
-        import Arch_rc,csv,os
+        import Arch_rc, csv, os, ArchIFCSchema
 
         # get presets
-        self.ptypes = ifcTypes.keys()
+        self.ptypes = ArchIFCSchema.IfcTypes.keys()
         self.plabels = [''.join(map(lambda x: x if x.islower() else " "+x, t[3:]))[1:] for t in self.ptypes]
         self.psetdefs = {}
         psetspath = os.path.join(FreeCAD.getResourceDir(),"Mod","Arch","Presets","pset_definitions.csv")
diff --git a/src/Mod/Arch/ArchIFC.py b/src/Mod/Arch/ArchIFC.py
index 0fba391f02..15d025b8d1 100644
--- a/src/Mod/Arch/ArchIFC.py
+++ b/src/Mod/Arch/ArchIFC.py
@@ -1,15 +1,8 @@
-import FreeCAD, os, ifcopenshell, json
+import FreeCAD, os, json
+
 if FreeCAD.GuiUp:
     from PySide.QtCore import QT_TRANSLATE_NOOP
 
-with open(os.path.join(FreeCAD.getResourceDir(), "Mod", "Arch", "Presets",
-    "ifc_products_" + ifcopenshell.schema_identifier + ".json")) as f:
-    ifcProducts = json.load(f)
-
-with open(os.path.join(FreeCAD.getResourceDir(), "Mod", "Arch", "Presets",
-    "ifc_types_" + ifcopenshell.schema_identifier + ".json")) as f:
-    ifcTypes = json.load(f)
-
 def setProperties(obj):
     if not "IfcData" in obj.PropertiesList:
         obj.addProperty("App::PropertyMap","IfcData","Component",QT_TRANSLATE_NOOP("App::Property","IFC data"))
@@ -22,9 +15,10 @@ def onChanged(obj, prop):
         setObjIfcAttributeValue(obj, prop, obj.getPropertyByName(prop))
 
 def getIfcProduct(IfcRole):
+    import ArchIFCSchema
     name = "Ifc" + IfcRole.replace(" ", "")
-    if name in ifcProducts:
-        return ifcProducts[name]
+    if name in ArchIFCSchema.IfcProducts:
+        return ArchIFCSchema.IfcProducts[name]
 
 def getIfcProductAttribute(ifcProduct, name):
     for attribute in ifcProduct["attributes"]:
@@ -60,7 +54,7 @@ def addIfcProductAttribute(obj, attribute):
         obj.addProperty("App::PropertyEnumeration", attribute["name"], "IFC Attributes", QT_TRANSLATE_NOOP("App::Property", "Description of IFC attributes are not yet implemented"))
         setattr(obj, attribute["name"], attribute["enum_values"])
     else:
-        propertyType = "App::" + ifcTypes[attribute["type"]]["property"]
+        propertyType = "App::" + ArchIFCSchema.IfcTypes[attribute["type"]]["property"]
         obj.addProperty(propertyType, attribute["name"], "IFC Attributes", QT_TRANSLATE_NOOP("App::Property", "Description of IFC attributes are not yet implemented"))
 
 def addIfcAttributeValueExpressions(obj, attribute):
diff --git a/src/Mod/Arch/ArchIFCSchema.py b/src/Mod/Arch/ArchIFCSchema.py
new file mode 100644
index 0000000000..98eabcde87
--- /dev/null
+++ b/src/Mod/Arch/ArchIFCSchema.py
@@ -0,0 +1,12 @@
+import FreeCAD, os, json
+
+ifcVersions = ["IFC4", "IFC2X3"]
+IfcVersion = ifcVersions[FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Arch").GetInt("IfcVersion",0)]
+
+with open(os.path.join(FreeCAD.getResourceDir(), "Mod", "Arch", "Presets",
+"ifc_products_" + IfcVersion + ".json")) as f:
+    IfcProducts = json.load(f)
+
+with open(os.path.join(FreeCAD.getResourceDir(), "Mod", "Arch", "Presets",
+"ifc_types_" + IfcVersion + ".json")) as f:
+    IfcTypes = json.load(f)
diff --git a/src/Mod/Arch/Resources/ui/preferences-arch.ui b/src/Mod/Arch/Resources/ui/preferences-arch.ui
index ba6e397315..6db7cad467 100644
--- a/src/Mod/Arch/Resources/ui/preferences-arch.ui
+++ b/src/Mod/Arch/Resources/ui/preferences-arch.ui
@@ -17,7 +17,16 @@
    <property name="spacing">
     <number>6</number>
    </property>
-   <property name="margin">
+   <property name="leftMargin">
+    <number>9</number>
+   </property>
+   <property name="topMargin">
+    <number>9</number>
+   </property>
+   <property name="rightMargin">
+    <number>9</number>
+   </property>
+   <property name="bottomMargin">
     <number>9</number>
    </property>
    <item>
@@ -198,6 +207,69 @@
         </property>
        </widget>
       </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_9">
+        <item>
+         <spacer name="horizontalSpacer_11">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="sizeType">
+           <enum>QSizePolicy::Fixed</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>20</width>
+            <height>20</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+        <item>
+         <widget class="QLabel" name="label_10">
+          <property name="text">
+           <string>IFC version</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <spacer name="horizontalSpacer_12">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>40</width>
+            <height>20</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+        <item>
+         <widget class="Gui::PrefComboBox" name="comboBox">
+          <property name="toolTip">
+           <string>The IFC version will change which attributes and products are supported</string>
+          </property>
+          <property name="prefPath" stdset="0">
+           <cstring>Mod/Arch</cstring>
+          </property>
+          <property name="prefEntry" stdset="0">
+           <cstring>IfcVersion</cstring>
+          </property>
+          <item>
+           <property name="text">
+            <string>IFC4</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>IFC2X3</string>
+           </property>
+          </item>
+         </widget>
+        </item>
+       </layout>
+      </item>
      </layout>
     </widget>
    </item>
@@ -690,6 +762,11 @@
    <extends>QDoubleSpinBox</extends>
    <header>Gui/PrefWidgets.h</header>
   </customwidget>
+  <customwidget>
+   <class>Gui::PrefComboBox</class>
+   <extends>QComboBox</extends>
+   <header>Gui/PrefWidgets.h</header>
+  </customwidget>
  </customwidgets>
  <resources/>
  <connections/>