diff --git a/CommonCore b/CommonCore
index 9df9259..1dea719 160000
--- a/CommonCore
+++ b/CommonCore
@@ -1 +1 @@
-Subproject commit 9df92595b2f344585bd3e1639cedc761680b7761
+Subproject commit 1dea71993d897354d3f52a705f6e0e1e0c8ec580
diff --git a/src/de/steamwar/bungeecore/commands/BauCommand.java b/src/de/steamwar/bungeecore/commands/BauCommand.java
index dfc0a5b..be8fdec 100644
--- a/src/de/steamwar/bungeecore/commands/BauCommand.java
+++ b/src/de/steamwar/bungeecore/commands/BauCommand.java
@@ -23,8 +23,10 @@ import de.steamwar.bungeecore.*;
 import de.steamwar.bungeecore.inventory.SWInventory;
 import de.steamwar.bungeecore.inventory.SWItem;
 import de.steamwar.bungeecore.network.NetworkSender;
+import de.steamwar.bungeecore.sql.BauLockState;
 import de.steamwar.bungeecore.sql.BauweltMember;
 import de.steamwar.bungeecore.sql.SteamwarUser;
+import de.steamwar.bungeecore.sql.UserConfig;
 import de.steamwar.bungeecore.util.Chat19;
 import de.steamwar.command.SWCommand;
 import de.steamwar.command.TypeMapper;
@@ -171,6 +173,10 @@ public class BauCommand extends SWCommand {
                 messageSender.send("BAU_TP_NOALLOWED");
                 return false;
             }
+            if(isLocked(value, SteamwarUser.get(p))) {
+                messageSender.send("BAU_LOCKED_NOALLOWED");
+                return false;
+            }
             return true;
         };
     }
@@ -288,6 +294,16 @@ public class BauCommand extends SWCommand {
         });
     }
 
+    @Register(value = "lock", description = "BAU_LOCKED_OPTIONS")
+    public void lock(ProxiedPlayer p, BauLockState bauLockState) {
+        setLocked(p, bauLockState);
+    }
+
+    @Register("unlock")
+    public void unlock(ProxiedPlayer p) {
+        setLocked(p, BauLockState.OPEN);
+    }
+
     private static BauweltMember member(ProxiedPlayer p, SteamwarUser member){
         if (member == null) {
             Message.send("UNKNOWN_PLAYER", p);
@@ -315,4 +331,27 @@ public class BauCommand extends SWCommand {
             Message.send("BAU_MEMBER_TOGGLE_OFF", p, Message.parse(what, p));
         }
     }
+
+    private static final String BAU_LOCK_CONFIG_NAME = "baulockstate";
+    private static void setLocked(ProxiedPlayer p, BauLockState state) {
+        SteamwarUser owner = SteamwarUser.get(p.getUniqueId());
+        UserConfig.updateUserConfig(owner.getId(), BAU_LOCK_CONFIG_NAME, state == BauLockState.OPEN ? null : state.name());
+        Message.send("BAU_LOCKED_" + state.name(), owner.getPlayer());
+    }
+
+    private static boolean isLocked(SteamwarUser owner, SteamwarUser target) {
+        if (owner.getId() == target.getId())
+            return false;
+
+        String state = UserConfig.getConfig(owner.getId(), BAU_LOCK_CONFIG_NAME);
+        switch (state == null ? BauLockState.OPEN : BauLockState.valueOf(state)) {
+            case NOBODY:
+                return true;
+            case TEAM:
+                return owner.getTeam() != target.getTeam();
+            case OPEN:
+            default:
+                return false;
+        }
+    }
 }