diff --git a/Commands/CmdOverseer.cs b/Commands/CmdOverseer.cs
index 5d22283ac..4447be35f 100644
--- a/Commands/CmdOverseer.cs
+++ b/Commands/CmdOverseer.cs
@@ -125,19 +125,18 @@ namespace MCGalaxy.Commands {
                 Command.all.Find("newlvl").Use(p, level + " " + value);
                 
                 // Set default perbuild permissions
-                Command.all.Find("load").Use(p, level);
+                Command.all.Find("load").Use(null, level);
                 Level lvl = LevelInfo.FindExact(level);
                 if (lvl == null) return;
+                Command.all.Find("perbuild").Use(null, lvl.name + " +" + p.name);
                 
                 LevelPermission osPerm = Server.osPerbuildDefault;
                 if (osPerm == LevelPermission.Nobody)
                     osPerm = GrpCommands.MinPerm(this);
-                
-                CmdZone.ZoneAll(lvl, p.name);
                 Group grp = Group.findPerm(osPerm);
                 if (grp == null) return;
                 
-                Command.all.Find("perbuild").Use(null, lvl.name + " " + grp.name);
+                Command.all.Find("perbuild").Use(null, lvl.name + " " + grp.name);                
                 Player.Message(p, "Use %T/os zone add [name] %Sto allow " +
                                "players ranked below " + grp.ColoredName + " %Sto build in the map.");
             } else if (cmd == "PHYSICS") {
diff --git a/Commands/Information/CmdMapInfo.cs b/Commands/Information/CmdMapInfo.cs
index 22c165497..700f963bc 100644
--- a/Commands/Information/CmdMapInfo.cs
+++ b/Commands/Information/CmdMapInfo.cs
@@ -65,9 +65,10 @@ namespace MCGalaxy.Commands {
             }
 
             if (Directory.Exists(Server.backupLocation + "/" + data.Name)) {
-                int latestBackup = Directory.GetDirectories(Server.backupLocation + "/" + data.Name).Length;
-                DateTime time = Directory.GetCreationTime(LevelInfo.BackupPath(data.Name, latestBackup.ToString()));
-                Player.Message(p, "  Latest backup: &a{0} %Sat &a" + time.ToString("yyyy-MM-dd HH:mm:ss"), latestBackup);
+                int latest = Directory.GetDirectories(Server.backupLocation + "/" + data.Name).Length;
+                DateTime time = File.GetCreationTimeUtc(LevelInfo.BackupPath(data.Name, latest.ToString()));
+                TimeSpan delta = DateTime.UtcNow - time;
+                Player.Message(p, "  Latest backup: &a{0} %S({1} ago)", latest, delta.Shorten());
             } else {
                 Player.Message(p, "  No backups for this map exist yet.");
             }
@@ -88,14 +89,19 @@ namespace MCGalaxy.Commands {
                            " %S: Visit rank = " + Group.findPerm(data.visit).ColoredName);
             Player.Message(p, "  BuildMax Rank = " + Group.findPerm(data.buildmax).ColoredName +
                            " %S: VisitMax Rank = " + Group.findPerm(data.visitmax).ColoredName);
-            List<string> whitelist = data.VisitWhitelist;
-            List<string> blacklist = data.VisitBlacklist;
-            GetBlacklistedPlayers(data.Name, blacklist);
+        	
+            List<string> vWhitelist = data.VisitWhitelist, vBlacklist = data.VisitBlacklist;
+            List<string> bWhitelist = data.BuildWhitelist, bBlacklist = data.BuildBlacklist;
+            GetBlacklistedPlayers(data.Name, vBlacklist);
             
-            if (whitelist.Count > 0)
-                Player.Message(p, "  Visit whitelist: &a" + whitelist.Join("%S, &a"));
-            if (blacklist.Count > 0)
-                Player.Message(p, "  Visit blacklist: &c" + blacklist.Join("%S, &c"));
+            if (vWhitelist.Count > 0)
+                Player.Message(p, "  Visit whitelist: &a" + vWhitelist.Join("%S, &a"));
+            if (vBlacklist.Count > 0)
+                Player.Message(p, "  Visit blacklist: &c" + vBlacklist.Join("%S, &c"));
+            if (bWhitelist.Count > 0)
+                Player.Message(p, "  Build whitelist: &a" + bWhitelist.Join("%S, &a"));
+            if (bBlacklist.Count > 0)
+                Player.Message(p, "  Build blacklist: &c" + bBlacklist.Join("%S, &c"));
             
             if (String.IsNullOrEmpty(data.RealmOwner))
                 data.RealmOwner = GetRealmMapOwner(data.Name);
@@ -164,6 +170,8 @@ namespace MCGalaxy.Commands {
             public LevelPermission visit, build, visitmax, buildmax;
             public List<string> VisitWhitelist = new List<string>();
             public List<string> VisitBlacklist = new List<string>();
+            public List<string> BuildWhitelist = new List<string>();
+            public List<string> BuildBlacklist = new List<string>();
             // Zombie data
             public string Authors;
             public int TotalRounds, HumanRounds;
@@ -179,6 +187,8 @@ namespace MCGalaxy.Commands {
                 visitmax = lvl.pervisitmax; buildmax = lvl.perbuildmax;
                 VisitWhitelist = new List<string>(lvl.VisitWhitelist);
                 VisitBlacklist = new List<string>(lvl.VisitBlacklist);
+                BuildWhitelist = new List<string>(lvl.BuildWhitelist);
+                BuildBlacklist = new List<string>(lvl.BuildBlacklist);
                 
                 Fog = lvl.FogColor; Sky = lvl.SkyColor; Clouds = lvl.CloudColor;
                 Light = lvl.LightColor; Shadow = lvl.ShadowColor;
@@ -221,6 +231,8 @@ namespace MCGalaxy.Commands {
                     case "pervisitmax": visitmax = GetPerm(value); break;
                     case "visitwhitelist": VisitWhitelist = Parse(value); break;
                     case "visitblacklist": VisitBlacklist = Parse(value); break;
+                    case "buildwhitelist": BuildWhitelist = Parse(value); break;
+                    case "buildblacklist": BuildBlacklist = Parse(value); break;
                     
                     case "authors": Authors = value; break;
                     case "roundsplayed": TotalRounds = int.Parse(value); break;
diff --git a/Commands/World/CmdMuseum.cs b/Commands/World/CmdMuseum.cs
index cf1d5056d..940b5db02 100644
--- a/Commands/World/CmdMuseum.cs
+++ b/Commands/World/CmdMuseum.cs
@@ -41,7 +41,7 @@ namespace MCGalaxy.Commands.World {
             Level lvl = LvlFile.Load(name, path);
             lvl.setPhysics(0);
             lvl.backedup = true;
-            lvl.permissionbuild = LevelPermission.Admin;
+            lvl.permissionbuild = LevelPermission.Nobody;
 
             lvl.jailx = (ushort)(lvl.spawnx * 32);
             lvl.jaily = (ushort)(lvl.spawny * 32);
diff --git a/Commands/World/CmdPermissions.cs b/Commands/World/CmdPermissions.cs
deleted file mode 100644
index 8f42f8785..000000000
--- a/Commands/World/CmdPermissions.cs
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
-    Copyright 2015 MCGalaxy
-    
-    Dual-licensed under the    Educational Community License, Version 2.0 and
-    the GNU General Public License, Version 3 (the "Licenses"); you may
-    not use this file except in compliance with the Licenses. You may
-    obtain a copy of the Licenses at
-    
-    http://www.opensource.org/licenses/ecl2.php
-    http://www.gnu.org/licenses/gpl-3.0.html
-    
-    Unless required by applicable law or agreed to in writing,
-    software distributed under the Licenses are distributed on an "AS IS"
-    BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
-    or implied. See the Licenses for the specific language governing
-    permissions and limitations under the Licenses.
- */
-using System;
-using System.Collections.Generic;
-
-namespace MCGalaxy.Commands.World {  
-    public sealed class CmdPerbuildMax : Command {        
-        public override string name { get { return "perbuildmax"; } }
-        public override string shortcut { get { return ""; } }
-        public override string type { get { return CommandTypes.World; } }
-        public override bool museumUsable { get { return false; } }
-        public override LevelPermission defaultRank { get { return LevelPermission.Operator; } }
-        public CmdPerbuildMax() { }
-
-        public override void Use(Player p, string message) {
-            string[] args = message.Split(' ');
-            if (args.Length < 1 || args.Length > 2) { Help(p); return; }
-            
-            PermissionCmd.Use(
-                p, args, false, "perbuildmax", l => l.perbuildmax,
-                (l, v) => l.perbuildmax = v);
-        }
-        
-        public override void Help(Player p) {
-            Player.Message(p, "%T/perbuildmax [Level] [Rank]");
-            Player.Message(p, "%HSets the highest rank able to build on the given level.");
-        }
-    }
-    
-    public sealed class CmdPermissionBuild : Command {        
-        public override string name { get { return "perbuild"; } }
-        public override string shortcut { get { return ""; } }
-        public override string type { get { return CommandTypes.World; } }
-        public override bool museumUsable { get { return false; } }
-        public override LevelPermission defaultRank { get { return LevelPermission.Operator; } }
-        public CmdPermissionBuild() { }
-
-        public override void Use(Player p, string message) {
-            string[] args = message.Split(' ');
-            if (args.Length < 1 || args.Length > 2) { Help(p); return; }
-            
-            PermissionCmd.Use(
-                p, args, true, "perbuild", l => l.permissionbuild,
-                (l, v) => l.permissionbuild = v);
-        }
-        
-        public override void Help(Player p) {
-            Player.Message(p, "%T/perbuild [Level] [Rank]");
-            Player.Message(p, "%HSets the lowest rank able to build on the given level.");
-        }
-    }
-    
-    public sealed class CmdPervisitMax : Command {        
-        public override string name { get { return "pervisitmax"; } }
-        public override string shortcut { get { return ""; } }
-        public override string type { get { return CommandTypes.World; } }
-        public override bool museumUsable { get { return false; } }
-        public override LevelPermission defaultRank { get { return LevelPermission.Operator; } }
-        public CmdPervisitMax() { }
-
-        public override void Use(Player p, string message) {
-            string[] args = message.Split(' ');
-            if (args.Length < 1 || args.Length > 2) { Help(p); return; }
-            
-            PermissionCmd.Use(
-                p, args, false, "pervisitmax", l => l.pervisitmax,
-                (l, v) => l.pervisitmax = v);
-        }
-        
-        public override void Help(Player p) {
-            Player.Message(p, "%T/pervisitmax [level] [rank]");
-            Player.Message(p, "%HSets the highest rank able to visit the given level.");
-        }
-    }
-    
-    public sealed class CmdPermissionVisit : Command {       
-        public override string name { get { return "pervisit"; } }
-        public override string shortcut { get { return ""; } }
-        public override string type { get { return CommandTypes.World; } }
-        public override bool museumUsable { get { return false; } }
-        public override LevelPermission defaultRank { get { return LevelPermission.Operator; } }
-        public CmdPermissionVisit() { }
-
-        public override void Use(Player p, string message) {
-            string[] args = message.Split(' ');
-            if (args.Length < 1 || args.Length > 2) { Help(p); return; }
-            
-            string name = args[args.Length - 1];
-            if (name.Length > 0 && (name[0] == '+' || name[0] == '-')) {
-                PermissionCmd.UseList(p, args, "pervisit", l => l.permissionvisit,
-                                       l => l.VisitWhitelist, l => l.VisitBlacklist); return;
-            }
-            
-            PermissionCmd.Use(
-                p, args, true, "pervisit", l => l.permissionvisit,
-                (l, v) => l.permissionvisit = v);
-        }
-        
-        public override void Help(Player p) {
-            Player.Message(p, "%T/pervisit [level] [rank]");
-            Player.Message(p, "%HSets the lowest rank able to visit the given level.");
-            Player.Message(p, "%T/pervisit [level] +[name]");
-            Player.Message(p, "%HAllows [name] to visit the map, even if their rank cannot.");
-            Player.Message(p, "%T/pervisit [level] -[name]");
-            Player.Message(p, "%HPrevents [name] from visiting the map, even if their rank can.");
-        }
-    }
-}
\ No newline at end of file
diff --git a/Commands/World/PermissionCmd.cs b/Commands/World/PermissionCmd.cs
index 517707de2..00526afea 100644
--- a/Commands/World/PermissionCmd.cs
+++ b/Commands/World/PermissionCmd.cs
@@ -18,58 +18,40 @@
 using System;
 using System.Collections.Generic;
 
-namespace MCGalaxy.Commands.World {   
-    static class PermissionCmd {
+namespace MCGalaxy.Commands.World {
+    public abstract class PermissionCmd : Command {
+        public override string shortcut { get { return ""; } }
+        public override string type { get { return CommandTypes.World; } }
+        public override bool museumUsable { get { return false; } }
+        public override LevelPermission defaultRank { get { return LevelPermission.Operator; } }
         
-        public static void Use(Player p, string[] args, bool skipNobodyPerm, string target,
-                               Func<Level, LevelPermission> getter, Action<Level, LevelPermission> setter) {
-            if (args.Length == 1 && p == null) {
-                Player.Message(p, "You must provide a level name when using this command from console.");
-                return;
+        protected Level GetArgs(Player p, string[] args, ref Group grp) {
+            if (args.Length == 1 && Player.IsSuper(p)) {
+                SuperRequiresArgs(p, "level"); return null;
             }
             Level level = args.Length == 1 ? p.level : LevelInfo.FindMatches(p, args[0]);
-            if (level == null) return;
+            if (level == null) return null;
             
             string rank = args.Length == 1 ? args[0] : args[1];
-            Group grp = Group.FindMatches(p, rank);
-            if (grp == null) return;
-
-            if (p != null && getter(level) > p.Rank) {
-                if (skipNobodyPerm || (getter(level) != LevelPermission.Nobody)) {
-                    Player.Message(p, "You cannot change the {0} of a level with a {0} higher than your rank.", target);
-                    return;
-                }
-            }
-            
-            if (p != null && grp.Permission > p.Rank) {
-                if (skipNobodyPerm || (grp.Permission != LevelPermission.Nobody)) {
-                    Player.Message(p, "You cannot change the {0} of a level to a {0} higher than your rank.", target);
-                    return;
-                }
-            }
-            
-            setter(level, grp.Permission);
-            Level.SaveSettings(level);
-            Server.s.Log(level.name + " " + target + " permission changed to " + grp.Permission + ".");
-            Chat.MessageLevel(level, target + " permission changed to " + grp.ColoredName + "%S.");
-            if (p == null || p.level != level)
-                Player.Message(p, "{0} permission changed to {1}%S on {2}.", target, grp.ColoredName, level.name);
+            grp = Group.FindMatches(p, rank);
+            return grp != null ? level : null;
         }
         
-        public static void UseList(Player p, string[] args, string target,
-                                   Func<Level, LevelPermission> getter,
-                                   Func<Level, List<string>> wlGetter, Func<Level, List<string>> blGetter) {
+        protected void UseList(Player p, string[] args, bool isVisit) {
+            string target = isVisit ? "pervisit" : "perbuild";
             if (args.Length == 1 && Player.IsSuper(p)) {
                 Command.SuperRequiresArgs(target, p, "level"); return;
             }
             Level level = args.Length == 1 ? p.level : LevelInfo.FindMatches(p, args[0]);
             if (level == null) return;
+            LevelAccess access = isVisit ? level.VisitAccess : level.BuildAccess;
             
             string name = args.Length == 1 ? args[0] : args[1];
-            string mode = name[0] == '+' ? "whitelist" : "blacklist";
-            List<string> list = name[0] == '+' ? wlGetter(level) : blGetter(level);
-            List<string> other = name[0] == '+' ? blGetter(level) : wlGetter(level);
-            name = name.Substring(1);            
+            bool include = name[0] == '+';
+            string mode = include ? "whitelist" : "blacklist";
+            List<string> list = include ? access.Whitelisted : access.Blacklisted;
+            List<string> other = include ? access.Blacklisted : access.Whitelisted;
+            name = name.Substring(1);
             
             if (name == "") {
                 Player.Message(p, "You must provide a player name to {0}.", mode); return;
@@ -78,12 +60,8 @@ namespace MCGalaxy.Commands.World {
                 Player.Message(p, "You cannot {0} yourself.", mode); return;
             }
             
-            if (p != null && getter(level) > p.Rank) {
-                Player.Message(p, "You cannot change the {0} {1} permissions " +
-                               "for a player higher than your rank.", target, mode); return;
-            }
-            if (p != null && blGetter(level).CaselessContains(p.name)) {
-                Player.Message(p, "You cannot change {0} permissions as you are blacklisted.", target); return;
+            if (p != null && !access.CheckDetailed(p, false)) {
+                Player.Message(p, "Hence you cannot modify the {0} {1}.", target, mode); return;
             }
             if (p != null && PlayerInfo.GetGroup(name).Permission > p.Rank) {
                 Player.Message(p, "You cannot whitelist/blacklist players of a higher rank."); return;
@@ -92,15 +70,32 @@ namespace MCGalaxy.Commands.World {
             if (list.CaselessContains(name)) {
                 Player.Message(p, "\"{0}\" is already {1}ed.", name, mode); return;
             }
-            list.Add(name);
-            other.CaselessRemove(name);
+            if (!other.CaselessRemove(name))
+                list.Add(name);
             
+            access.UpdateAllowBuild();
             Level.SaveSettings(level);
+            
             string msg = name + " was " + target + " " + mode + "ed";
             Server.s.Log(msg + " on " + level.name);
             Chat.MessageLevel(level, msg);
             if (p == null || p.level != level)
                 Player.Message(p, msg + " on {0}.", level.name);
         }
+
+        
+        protected void MaxHelp(Player p, string action) {
+            Player.Message(p, "%T/{0} [Level] [Rank]", name);
+            Player.Message(p, "%HSets the highest rank able to {0} the given level.", action);
+        }
+        
+        protected void NormalHelp(Player p, string action, string action2) {
+            Player.Message(p, "%T/{0} [level] [rank]", name);
+            Player.Message(p, "%HSets the lowest rank able to {0} the given level.", action);
+            Player.Message(p, "%T/{0} [level] +[name]", name);
+            Player.Message(p, "%HAllows [name] to {0}, even if their rank cannot.", action2);
+            Player.Message(p, "%T/{0} [level] -[name]", name);
+            Player.Message(p, "%HPrevents [name] from {0}ing, even if their rank can.", action2);
+        }
     }
 }
\ No newline at end of file
diff --git a/Commands/World/PermissionCmds.cs b/Commands/World/PermissionCmds.cs
new file mode 100644
index 000000000..7a4731771
--- /dev/null
+++ b/Commands/World/PermissionCmds.cs
@@ -0,0 +1,91 @@
+/*
+    Copyright 2015 MCGalaxy
+    
+    Dual-licensed under the    Educational Community License, Version 2.0 and
+    the GNU General Public License, Version 3 (the "Licenses"); you may
+    not use this file except in compliance with the Licenses. You may
+    obtain a copy of the Licenses at
+    
+    http://www.opensource.org/licenses/ecl2.php
+    http://www.gnu.org/licenses/gpl-3.0.html
+    
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the Licenses are distributed on an "AS IS"
+    BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+    or implied. See the Licenses for the specific language governing
+    permissions and limitations under the Licenses.
+ */
+using System;
+using System.Collections.Generic;
+
+namespace MCGalaxy.Commands.World {  
+    public sealed class CmdPerbuildMax : PermissionCmd {        
+        public override string name { get { return "perbuildmax"; } }
+
+        public override void Use(Player p, string message) {
+            string[] args = message.Split(' ');
+            if (args.Length < 1 || args.Length > 2) { Help(p); return; }
+            
+            Group grp = null;
+            Level lvl = GetArgs(p, args, ref grp);
+            if (lvl != null) lvl.BuildAccess.SetMax(p, grp);
+        }
+        
+        public override void Help(Player p) { MaxHelp(p, "build on"); }
+    }
+    
+    public sealed class CmdPermissionBuild : PermissionCmd {        
+        public override string name { get { return "perbuild"; } }
+
+        public override void Use(Player p, string message) {
+            string[] args = message.Split(' ');
+            if (args.Length < 1 || args.Length > 2) { Help(p); return; }
+            
+            string name = args[args.Length - 1];
+            if (name.Length > 0 && (name[0] == '+' || name[0] == '-')) {
+                UseList(p, args, false); return;
+            }
+            
+            Group grp = null;
+            Level lvl = GetArgs(p, args, ref grp);
+            if (lvl != null) lvl.BuildAccess.SetMin(p, grp);
+        }
+        
+        public override void Help(Player p) { NormalHelp(p, "build on", "build"); }
+    }
+    
+    public sealed class CmdPervisitMax : PermissionCmd {        
+        public override string name { get { return "pervisitmax"; } }
+
+        public override void Use(Player p, string message) {
+            string[] args = message.Split(' ');
+            if (args.Length < 1 || args.Length > 2) { Help(p); return; }
+            
+            Group grp = null;
+            Level lvl = GetArgs(p, args, ref grp);
+            if (lvl != null) lvl.VisitAccess.SetMax(p, grp);
+        }
+        
+        public override void Help(Player p) { MaxHelp(p, "visit"); }
+    }
+    
+    public sealed class CmdPermissionVisit : PermissionCmd {       
+        public override string name { get { return "pervisit"; } }
+
+        public override void Use(Player p, string message) {
+            string[] args = message.Split(' ');
+            if (args.Length < 1 || args.Length > 2) { Help(p); return; }
+            
+            string name = args[args.Length - 1];
+            if (name.Length > 0 && (name[0] == '+' || name[0] == '-')) {
+                UseList(p, args, true); return;
+            }
+            
+            Group grp = null;
+            Level lvl = GetArgs(p, args, ref grp);
+            if (lvl != null) lvl.VisitAccess.SetMin(p, grp);
+        }
+        
+        public override void Help(Player p) { NormalHelp(p, "visit", "visit"); }
+    }
+}
\ No newline at end of file
diff --git a/Levels/IO/McfFile.cs b/Levels/IO/McfFile.cs
index 9f7689c00..3f5c59cf1 100644
--- a/Levels/IO/McfFile.cs
+++ b/Levels/IO/McfFile.cs
@@ -41,7 +41,6 @@ namespace MCGalaxy.Levels.IO {
             ushort height = BitConverter.ToUInt16(header, 4);
 
             Level lvl = new Level(name, width, height, length);
-            lvl.permissionbuild = (LevelPermission)30;
             lvl.spawnx = BitConverter.ToUInt16(header, 6);
             lvl.spawnz = BitConverter.ToUInt16(header, 8);
             lvl.spawny = BitConverter.ToUInt16(header, 10);
diff --git a/Levels/Level.Blocks.cs b/Levels/Level.Blocks.cs
index c8c9173e1..2614a3685 100644
--- a/Levels/Level.Blocks.cs
+++ b/Levels/Level.Blocks.cs
@@ -173,28 +173,27 @@ namespace MCGalaxy {
             return true;
         }
         
-        bool CheckZonePerms(Player p, ushort x, ushort y, ushort z,
-                        ref bool AllowBuild, ref bool inZone, ref string Owners) {
+        bool CheckZonePerms(Player p, ushort x, ushort y, ushort z, ref bool inZone) {
             if (p.Rank < LevelPermission.Admin) {
-            	bool foundDel = FindZones(p, x, y, z, ref inZone, ref AllowBuild, ref Owners);
-                if (!AllowBuild) {
-                    if (p.ZoneSpam <= DateTime.UtcNow) {
-                        if (Owners != "")
-                            Player.Message(p, "This zone belongs to &b" + Owners.Remove(0, 2) + ".");
-                        else
-                            Player.Message(p, "This zone belongs to no one.");
-                        p.ZoneSpam = DateTime.UtcNow.AddSeconds(2);
-                    }
-                    return false;
-                }
+        	    string owners = "";
+                bool zoneAllow = FindZones(p, x, y, z, ref inZone, ref owners);
+                if (zoneAllow) return true;
+                if (p.ZoneSpam > DateTime.UtcNow) return false;
+                
+                if (owners != "")
+                    Player.Message(p, "This zone belongs to &b" + owners.Remove(0, 2) + ".");
+                else
+                    Player.Message(p, "This zone belongs to no one.");
+                p.ZoneSpam = DateTime.UtcNow.AddSeconds(2);
+                return false;
             }
             return true;
         }
         
         bool FindZones(Player p, ushort x, ushort y, ushort z, 
-                             ref bool inZone, ref bool AllowBuild, ref string Owners) {
-            if (ZoneList.Count == 0) { AllowBuild = true; return false; }
-            bool foundDel = false;
+                             ref bool inZone, ref string Owners) {
+            if (ZoneList.Count == 0) return true;
+            bool zoneAllow = true;
             
             for (int i = 0; i < ZoneList.Count; i++) {
                 Zone zn = ZoneList[i];
@@ -204,39 +203,23 @@ namespace MCGalaxy {
                 inZone = true;
                 if (zn.Owner.Length >= 3 && zn.Owner.StartsWith("grp")) {
                     string grpName = zn.Owner.Substring(3);
-                    if (Group.Find(grpName).Permission <= p.Rank) {
-                        AllowBuild = true; break;
-                    }
-                    AllowBuild = false;
+                    if (Group.Find(grpName).Permission <= p.Rank) return true;
                     Owners += ", " + grpName;
                 } else {
-                	if (zn.Owner.CaselessEq(p.name)) {
-                        AllowBuild = true; break;
-                    }
-                    AllowBuild = false;
+                	if (zn.Owner.CaselessEq(p.name)) return true;
                     Owners += ", " + zn.Owner;
                 }
+                zoneAllow = false;
             }
-            return foundDel;
+            return zoneAllow;
         }
         
-        bool CheckRank(Player p, bool AllowBuild, bool inZone) {
-            if (p.Rank < permissionbuild && (!inZone || !AllowBuild)) {
-                if (p.ZoneSpam <= DateTime.UtcNow) {
-                    Player.Message(p, "Must be at least " + PermissionToName(permissionbuild) + " to build here");
-                    p.ZoneSpam = DateTime.UtcNow.AddSeconds(2);
-                }
-                return false;
+        bool CheckRank(Player p) {
+            if (p.ZoneSpam <= DateTime.UtcNow) {
+                BuildAccess.CheckDetailed(p, false);
+                p.ZoneSpam = DateTime.UtcNow.AddSeconds(2);
             }
-            
-            if (p.Rank > perbuildmax && (!inZone || !AllowBuild) && !p.group.CanExecute("perbuildmax")) {
-                if (p.ZoneSpam <= DateTime.UtcNow) {
-                    Player.Message(p, "Your rank must be " + perbuildmax + " or lower to build here!");
-                    p.ZoneSpam = DateTime.UtcNow.AddSeconds(2);
-                }
-                return false;
-            }
-            return true;
+            return p.AllowBuild;
         }
         
         public bool CheckAffectPermissions(Player p, ushort x, ushort y, ushort z, 
@@ -244,13 +227,9 @@ namespace MCGalaxy {
             if (!Block.AllowBreak(b) && !Block.canPlace(p, b) && !Block.BuildIn(b)) return false;
             if (p.PlayingTntWars && !CheckTNTWarsChange(p, x, y, z, ref type)) return false;
             
-            string Owners = "";
-            bool AllowBuild = true, inZone = false;
-            if (!CheckZonePerms(p, x, y, z, ref AllowBuild, ref inZone, ref Owners))
-                return false;
-            if (Owners.Length == 0 && !CheckRank(p, AllowBuild, inZone))
-                return false;
-            return true;
+            bool inZone = false;
+            if (!CheckZonePerms(p, x, y, z, ref inZone)) return false;
+            return inZone || CheckRank(p);
         }
         
         public void Blockchange(Player p, ushort x, ushort y, ushort z, 
diff --git a/Levels/Level.Fields.cs b/Levels/Level.Fields.cs
index d7e7b19bd..e7ef6d8d4 100644
--- a/Levels/Level.Fields.cs
+++ b/Levels/Level.Fields.cs
@@ -141,6 +141,8 @@ namespace MCGalaxy {
         public bool Buildable = true;
         [ConfigBool("Deletable", "Permissions", null, true)]
         public bool Deletable = true;
+        public LevelAccess VisitAccess, BuildAccess;
+        
         [ConfigPerm("PerBuildMax", "Permissions", null, LevelPermission.Nobody, true)]
         public LevelPermission perbuildmax = LevelPermission.Nobody;
         [ConfigPerm("PerBuild", "Permissions", null, LevelPermission.Guest, true)]
@@ -149,13 +151,16 @@ namespace MCGalaxy {
         [ConfigPerm("PerVisit", "Permissions", null, LevelPermission.Guest, true)]
         public LevelPermission permissionvisit = LevelPermission.Guest;
         [ConfigPerm("PerVisitMax", "Permissions", null, LevelPermission.Nobody, true)]
-        public LevelPermission pervisitmax = LevelPermission.Nobody;
+        public LevelPermission pervisitmax = LevelPermission.Nobody;       
         // Other blacklists/whitelists
         [ConfigStringList("VisitWhitelist", "Permissions", null)]
         public List<string> VisitWhitelist = new List<string>();
         [ConfigStringList("VisitBlacklist", "Permissions", null)]
         public List<string> VisitBlacklist = new List<string>();
-
+        [ConfigStringList("BuildWhitelist", "Permissions", null)]
+        public List<string> BuildWhitelist = new List<string>();
+        [ConfigStringList("BuildBlacklist", "Permissions", null)]
+        public List<string> BuildBlacklist = new List<string>();
         
         // Physics fields and settings
         public int physics {
diff --git a/Levels/Level.cs b/Levels/Level.cs
index 6a82c19b4..9cfb69440 100644
--- a/Levels/Level.cs
+++ b/Levels/Level.cs
@@ -60,6 +60,9 @@ namespace MCGalaxy {
             if (Height < 16) Height = 16;
             if (Length < 16) Length = 16;
             
+            VisitAccess = new LevelAccess(this, true);
+            BuildAccess = new LevelAccess(this, false);
+            
             #pragma warning disable 0612
             width = Width;
             length = Height;
@@ -136,17 +139,11 @@ namespace MCGalaxy {
         
         public bool CanJoin(Player p) {
             if (p == null) return true;
-            if (Player.BlacklistCheck(p.name, name) || VisitBlacklist.CaselessContains(p.name)) {
+            if (Player.BlacklistCheck(p.name, name)) {
                 Player.Message(p, "You are blacklisted from going to {0}.", name); return false;
             }
             
-            bool whitelisted = VisitWhitelist.CaselessContains(p.name);
-            if (!p.ignorePermission && !whitelisted && p.Rank < permissionvisit) {
-                Player.Message(p, "You are not allowed to go to {0}.", name); return false;
-            }
-            if (!p.ignorePermission && !whitelisted && p.Rank > pervisitmax && !p.group.CanExecute("pervisitmax")) {
-                Player.Message(p, "Your rank must be ranked {1} or lower to go to {0}.", name, pervisitmax); return false;
-            }
+            if (!VisitAccess.CheckDetailed(p, p.ignorePermission)) return false;
             if (File.Exists("text/lockdown/map/" + name)) {
                 Player.Message(p, "The level " + name + " is locked."); return false;
             }
diff --git a/Levels/LevelAccess.cs b/Levels/LevelAccess.cs
new file mode 100644
index 000000000..f39548cdd
--- /dev/null
+++ b/Levels/LevelAccess.cs
@@ -0,0 +1,160 @@
+/*
+    Copyright 2015 MCGalaxy
+        
+    Dual-licensed under the Educational Community License, Version 2.0 and
+    the GNU General Public License, Version 3 (the "Licenses"); you may
+    not use this file except in compliance with the Licenses. You may
+    obtain a copy of the Licenses at
+    
+    http://www.opensource.org/licenses/ecl2.php
+    http://www.gnu.org/licenses/gpl-3.0.html
+    
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the Licenses are distributed on an "AS IS"
+    BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+    or implied. See the Licenses for the specific language governing
+    permissions and limitations under the Licenses.
+ */
+using System;
+using System.Collections.Generic;
+
+namespace MCGalaxy {
+
+    /// <summary> Encapuslates access permissions (visit or build) for a level. </summary>
+    public sealed class LevelAccess {
+        
+        /// <summary> Whether these access permissions apply to
+        /// visit (true) or build (false) permission for the level. </summary>
+        public readonly bool IsVisit;
+        readonly Level lvl;
+
+        public LevelAccess(Level lvl, bool isVisit) {
+            this.lvl = lvl;
+            IsVisit = isVisit;
+        }
+        
+        /// <summary> Lowest allowed rank. </summary>
+        public LevelPermission Min {
+            get { return IsVisit ? lvl.permissionvisit : lvl.permissionbuild; }
+            set {
+                if (IsVisit) lvl.permissionvisit = value;
+                else lvl.permissionbuild = value;
+            }
+        }
+        
+        /// <summary> Highest allowed rank. </summary>
+        public LevelPermission Max {
+            get { return IsVisit ? lvl.pervisitmax : lvl.perbuildmax; }
+            set {
+                if (IsVisit) lvl.pervisitmax = value;
+                else lvl.perbuildmax = value;
+            }
+        }
+        
+        /// <summary> List of always allowed players, overrides rank allowances. </summary>
+        public List<string> Whitelisted {
+            get { return IsVisit ? lvl.VisitWhitelist : lvl.BuildWhitelist; }
+        }
+        
+        /// <summary> List of never allowed players, ignores rank allowances. </summary>
+        public List<string> Blacklisted {
+            get { return IsVisit ? lvl.VisitBlacklist : lvl.BuildBlacklist; }
+        }
+        
+        
+        /// <summary> Returns whether the given player is allowed by these access permissions. </summary>
+        public bool Check(Player p, bool ignoreRankPerm = false) {
+            if (Blacklisted.CaselessContains(p.name)) return false;
+            if (Whitelisted.CaselessContains(p.name) || ignoreRankPerm) return true;
+            
+            if (p.Rank < Min) return false;
+            string maxCmd = IsVisit ? "pervisitmax" : "perbuildmax";
+            if (p.Rank > Max && !p.group.CanExecute(maxCmd)) return false;
+            return true;
+        }
+        
+        /// <summary> Returns whether the given player is allowed for these access permissions. </summary>
+        /// <remarks> If the player is not allowed by these access permissions,
+        /// sends a message to the player describing why they are not. </remarks>
+        public bool CheckDetailed(Player p, bool ignoreRankPerm = false) {
+            string name = lvl.name;
+            string action = IsVisit ? "going to" : "building in";
+            if (Blacklisted.CaselessContains(p.name)) {
+                Player.Message(p, "You are blacklisted from {1} {0}.", name, action); return false;
+            }
+            if (Whitelisted.CaselessContains(p.name) || ignoreRankPerm) return true;
+            
+            action = IsVisit? "go to" : "build in";
+            if (p.Rank < Min) {
+                Group grp = Group.findPerm(Min);
+                string grpName = grp == null ? "&f" + Min : grp.ColoredName;
+                Player.Message(p, "Only {2}%S+ may {1} {0}.", name, action, grpName); return false;
+            }
+            
+            string maxCmd = IsVisit ? "pervisitmax" : "perbuildmax";
+            if (p.Rank > Max && !p.group.CanExecute(maxCmd)) {
+                Group grp = Group.findPerm(Max);
+                string grpName = grp == null ? "&f" + Max : grp.ColoredName;
+                Player.Message(p, "Only {2}%S and below may {1} {0}.", name, action, grpName); return false;
+            }
+            return true;
+        }
+        
+        
+        /// <summary> Sets the minimum rank allowed to access these permissions. </summary>
+        /// <returns> true if the minimum rank was changed, false if the given player
+        /// had insufficient permission to change the minimum rank. </returns>
+        public bool SetMin(Player p, Group grp) {
+            string target = IsVisit ? "pervisit" : "perbuild";
+            if (!CheckRank(p, Min, target, false)) return false;
+            if (!CheckRank(p, grp.Permission, target, true)) return false;
+            Min = grp.Permission;
+            
+            UpdateAllowBuild();
+            OnPermissionChanged(p, grp, target);
+            return true;
+        }
+        
+        /// <summary> Sets the minimum rank allowed to access these permissions. </summary>
+        /// <returns> true if the minimum rank was changed, false if the given player
+        /// had insufficient permission to change the minimum rank. </returns>
+        public bool SetMax(Player p, Group grp) {
+            string target = IsVisit ? "pervisitmax" : "perbuildmax";
+            const LevelPermission ignore = LevelPermission.Nobody;
+            if (Max != ignore && !CheckRank(p, Max, target, false)) return false;
+            if (grp.Permission != ignore && !CheckRank(p, grp.Permission, target, true)) return false;
+            Max = grp.Permission;
+            
+            UpdateAllowBuild();
+            OnPermissionChanged(p, grp, target);
+            return true;
+        }
+        
+        
+        bool CheckRank(Player p, LevelPermission perm, string target, bool newPerm) {
+            if (p != null && perm > p.Rank) {
+                Player.Message(p, "You cannot change the {0} of a level {1} a {0} higher than your rank.", 
+        		               target, newPerm ? "to" : "with");
+                return false;
+            }
+            return true;
+        }
+        
+        void OnPermissionChanged(Player p, Group grp, string target) {
+            Level.SaveSettings(lvl);
+            Server.s.Log(lvl.name + " " + target + " permission changed to " + grp.Permission + ".");
+            Chat.MessageLevel(lvl, target + " permission changed to " + grp.ColoredName + "%S.");
+            if (p == null || p.level != lvl)
+                Player.Message(p, "{0} permission changed to {1}%S on {2}.", target, grp.ColoredName, lvl.name);
+        }
+        
+        internal void UpdateAllowBuild() {
+            if (IsVisit) return;
+            Player[] players = PlayerInfo.Online.Items;
+            foreach (Player p in players) {
+                if (p.level != lvl) continue;
+                p.AllowBuild = lvl.BuildAccess.Check(p, false);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/MCGalaxy_.csproj b/MCGalaxy_.csproj
index fb352bbcf..574f373d0 100644
--- a/MCGalaxy_.csproj
+++ b/MCGalaxy_.csproj
@@ -386,7 +386,7 @@
     <Compile Include="Commands\World\CmdMuseum.cs" />
     <Compile Include="Commands\World\CmdNewLvl.cs" />
     <Compile Include="Commands\World\CmdPause.cs" />
-    <Compile Include="Commands\World\CmdPermissions.cs" />
+    <Compile Include="Commands\World\PermissionCmds.cs" />
     <Compile Include="Commands\World\CmdPhysics.cs" />
     <Compile Include="Commands\World\CmdRenameLvl.cs" />
     <Compile Include="Commands\World\CmdResizeLvl.cs" />
@@ -498,6 +498,7 @@
     <Compile Include="Levels\IO\McfFile.cs" />
     <Compile Include="Levels\Level.Blocks.cs" />
     <Compile Include="Levels\Level.Fields.cs" />
+    <Compile Include="Levels\LevelAccess.cs" />
     <Compile Include="Levels\LevelDB.cs" />
     <Compile Include="Levels\Level.Physics.cs" />
     <Compile Include="Levels\LevelActions.cs" />
diff --git a/Network/Player.Networking.cs b/Network/Player.Networking.cs
index ddb83d50c..c854ac974 100644
--- a/Network/Player.Networking.cs
+++ b/Network/Player.Networking.cs
@@ -321,6 +321,7 @@ namespace MCGalaxy {
             bool success = true;
             useCheckpointSpawn = false;
             lastCheckpointIndex = -1;
+            AllowBuild = level.BuildAccess.Check(this, false);
             
             try {               
                 if (hasBlockDefs) {
diff --git a/Player/Player.Fields.cs b/Player/Player.Fields.cs
index 4c4c3bc1f..2f467522d 100644
--- a/Player/Player.Fields.cs
+++ b/Player/Player.Fields.cs
@@ -149,6 +149,8 @@ namespace MCGalaxy {
         // Only used for possession.
         //Using for anything else can cause unintended effects!
         public bool canBuild = true;
+        /// <summary> Whether the player has build permission in the current world. </summary>
+        public bool AllowBuild = true;
 
         public int money, loginMoney;
         public long overallBlocks, TotalDrawn, TotalPlaced, TotalDeleted;