diff --git a/BauSystem_Main/src/de/steamwar/bausystem/world/regions/GlobalRegion.java b/BauSystem_Main/src/de/steamwar/bausystem/world/regions/GlobalRegion.java
index e16d048..363284c 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/world/regions/GlobalRegion.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/world/regions/GlobalRegion.java
@@ -58,12 +58,7 @@ public class GlobalRegion extends Region {
     }
 
     @Override
-    public boolean hasBuildAreaExtensionAreaRegistered() {
-        return false;
-    }
-
-    @Override
-    public boolean hasTestblockExtensionAreaRegistered() {
+    public boolean hasExtensionArea(RegionType regionType) {
         return false;
     }
 }
\ No newline at end of file
diff --git a/BauSystem_Main/src/de/steamwar/bausystem/world/regions/Region.java b/BauSystem_Main/src/de/steamwar/bausystem/world/regions/Region.java
index 22e904d..fbd113a 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/world/regions/Region.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/world/regions/Region.java
@@ -223,12 +223,16 @@ public class Region {
         undosessions.push(prototype.protect(this, schem));
     }
 
-    public boolean hasBuildAreaExtensionAreaRegistered() {
-        return prototype.buildArea.extensionPrototypeArea;
-    }
-
-    public boolean hasTestblockExtensionAreaRegistered() {
-        return prototype.testblock.extensionPrototypeArea;
+    public boolean hasExtensionArea(RegionType regionType) {
+        switch (regionType) {
+            case BUILD:
+                return prototype.buildArea.extensionPrototypeArea;
+            case TESTBLOCK:
+                return prototype.testblock.extensionPrototypeArea;
+            default:
+            case NORMAL:
+                return prototype.extensionPrototypeArea;
+        }
     }
 
     private void initSessions() {