diff --git a/ClassicalSharp/Blocks/BlockInfo.BoundsBox.cs b/ClassicalSharp/Blocks/BlockInfo.BoundsBox.cs
index 87a8d8726..53f9adc6e 100644
--- a/ClassicalSharp/Blocks/BlockInfo.BoundsBox.cs
+++ b/ClassicalSharp/Blocks/BlockInfo.BoundsBox.cs
@@ -1,114 +1,114 @@
-// Copyright 2014-2017 ClassicalSharp | Licensed under BSD-3
-using System;
-using OpenTK;
-using ClassicalSharp;
-using BlockID = System.UInt16;
-
-namespace ClassicalSharp {
-	
-	/// <summary> Stores various properties about the blocks in Minecraft Classic. </summary>
-	public static partial class BlockInfo {
-		
-		internal static void CalcRenderBounds(BlockID block) {
-			Vector3 min = MinBB[block], max = MaxBB[block];
-			
-			if (IsLiquid[block]) {
-				min.X -= 0.1f/16f; max.X -= 0.1f/16f;
-				min.Z -= 0.1f/16f; max.Z -= 0.1f/16f;
-				min.Y -= 1.5f/16f; max.Y -= 1.5f/16f;
-			} else if (Draw[block] == DrawType.Translucent && Collide[block] != CollideType.Solid) {
-				min.X += 0.1f/16f; max.X += 0.1f/16f;
-				min.Z += 0.1f/16f; max.Z += 0.1f/16f;
-				min.Y -= 0.1f/16f; max.Y -= 0.1f/16f;
-			}
-			
-			RenderMinBB[block] = min; RenderMaxBB[block] = max;
-		}
-		
-		internal static byte CalcLightOffset(BlockID block) {
-			int flags = 0xFF;
-			Vector3 min = MinBB[block], max = MaxBB[block];
-			
-			if (min.X != 0) flags &= ~(1 << Side.Left);
-			if (max.X != 1) flags &= ~(1 << Side.Right);
-			if (min.Z != 0) flags &= ~(1 << Side.Front);
-			if (max.Z != 1) flags &= ~(1 << Side.Back);
-			
-			if ((min.Y != 0 && max.Y == 1) && Draw[block] != DrawType.Gas) {
-				flags &= ~(1 << Side.Top);
-				flags &= ~(1 << Side.Bottom);
-			}
-			return (byte)flags;
-		}
-		
-		internal static void RecalculateSpriteBB() {
-			using (FastBitmap fastBmp = new FastBitmap(TerrainAtlas2D.Atlas, true, true)) {
-				for (int i = 0; i < Count; i++) {
-					if (Draw[i] != DrawType.Sprite) continue;
-					RecalculateBB((BlockID)i, fastBmp);
-				}
-			}
-		}
-		
-		const float angle = 45f * Utils.Deg2Rad;
-		static readonly Vector3 centre = new Vector3(0.5f, 0, 0.5f);
-		internal static void RecalculateBB(BlockID block, FastBitmap fastBmp) {
-			int elemSize = fastBmp.Width / 16;
-			int texId = GetTextureLoc(block, Side.Right);
-			int texX = texId & 0x0F, texY = texId >> 4;
-			
-			float topY = GetSpriteBB_TopY(elemSize, texX, texY, fastBmp);
-			float bottomY = GetSpriteBB_BottomY(elemSize, texX, texY, fastBmp);
-			float leftX = GetSpriteBB_LeftX(elemSize, texX, texY, fastBmp);
-			float rightX = GetSpriteBB_RightX(elemSize, texX, texY, fastBmp);
-			
-			MinBB[block] = Utils.RotateY(leftX - 0.5f, bottomY, 0, angle) + centre;
-			MaxBB[block] = Utils.RotateY(rightX - 0.5f, topY, 0, angle) + centre;
-			CalcRenderBounds(block);
-		}
-		
-		unsafe static float GetSpriteBB_TopY(int size, int tileX, int tileY, FastBitmap fastBmp) {
-			for (int y = 0; y < size; y++) {
-				int* row = fastBmp.GetRowPtr(tileY * size + y) + (tileX * size);
-				for (int x = 0; x < size; x++) {
-					if ((byte)(row[x] >> 24) != 0)
-						return 1 - (float)y / size;
-				}
-			}
-			return 0;
-		}
-		
-		unsafe static float GetSpriteBB_BottomY(int size, int tileX, int tileY, FastBitmap fastBmp) {
-			for (int y = size - 1; y >= 0; y--) {
-				int* row = fastBmp.GetRowPtr(tileY * size + y) + (tileX * size);
-				for (int x = 0; x < size; x++) {
-					if ((byte)(row[x] >> 24) != 0)
-						return 1 - (float)(y + 1) / size;
-				}
-			}
-			return 1;
-		}
-		
-		unsafe static float GetSpriteBB_LeftX(int size, int tileX, int tileY, FastBitmap fastBmp) {
-			for (int x = 0; x < size; x++) {
-				for (int y = 0; y < size; y++) {
-					int* row = fastBmp.GetRowPtr(tileY * size + y) + (tileX * size);
-					if ((byte)(row[x] >> 24) != 0)
-						return (float)x / size;
-				}
-			}
-			return 1;
-		}
-		
-		unsafe static float GetSpriteBB_RightX(int size, int tileX, int tileY, FastBitmap fastBmp) {
-			for (int x = size - 1; x >= 0; x--) {
-				for (int y = 0; y < size; y++) {
-					int* row = fastBmp.GetRowPtr(tileY * size + y) + (tileX * size);
-					if ((byte)(row[x] >> 24) != 0)
-						return (float)(x + 1) / size;
-				}
-			}
-			return 0;
-		}
-	}
+// Copyright 2014-2017 ClassicalSharp | Licensed under BSD-3
+using System;
+using OpenTK;
+using ClassicalSharp;
+using BlockID = System.UInt16;
+
+namespace ClassicalSharp {
+	
+	/// <summary> Stores various properties about the blocks in Minecraft Classic. </summary>
+	public static partial class BlockInfo {
+		
+		internal static void CalcRenderBounds(BlockID block) {
+			Vector3 min = MinBB[block], max = MaxBB[block];
+			
+			if (IsLiquid[block]) {
+				min.X -= 0.1f/16f; max.X -= 0.1f/16f;
+				min.Z -= 0.1f/16f; max.Z -= 0.1f/16f;
+				min.Y -= 1.5f/16f; max.Y -= 1.5f/16f;
+			} else if (Draw[block] == DrawType.Translucent && Collide[block] != CollideType.Solid) {
+				min.X += 0.1f/16f; max.X += 0.1f/16f;
+				min.Z += 0.1f/16f; max.Z += 0.1f/16f;
+				min.Y -= 0.1f/16f; max.Y -= 0.1f/16f;
+			}
+			
+			RenderMinBB[block] = min; RenderMaxBB[block] = max;
+		}
+		
+		internal static byte CalcLightOffset(BlockID block) {
+			int flags = 0xFF;
+			Vector3 min = MinBB[block], max = MaxBB[block];
+			
+			if (min.X != 0) flags &= ~(1 << Side.Left);
+			if (max.X != 1) flags &= ~(1 << Side.Right);
+			if (min.Z != 0) flags &= ~(1 << Side.Front);
+			if (max.Z != 1) flags &= ~(1 << Side.Back);
+			
+			if ((min.Y != 0 && max.Y == 1) && Draw[block] != DrawType.Gas) {
+				flags &= ~(1 << Side.Top);
+				flags &= ~(1 << Side.Bottom);
+			}
+			return (byte)flags;
+		}
+		
+		internal static void RecalculateSpriteBB() {
+			using (FastBitmap fastBmp = new FastBitmap(TerrainAtlas2D.Atlas, true, true)) {
+				for (int i = 0; i < Count; i++) {
+					if (Draw[i] != DrawType.Sprite) continue;
+					RecalculateBB((BlockID)i, fastBmp);
+				}
+			}
+		}
+		
+		const float angle = 45f * Utils.Deg2Rad;
+		static readonly Vector3 centre = new Vector3(0.5f, 0, 0.5f);
+		internal static void RecalculateBB(BlockID block, FastBitmap fastBmp) {
+			int elemSize = fastBmp.Width / 16;
+			int texId = GetTextureLoc(block, Side.Right);
+			int texX = texId & 0x0F, texY = texId >> 4;
+			
+			float topY = GetSpriteBB_TopY(elemSize, texX, texY, fastBmp);
+			float bottomY = GetSpriteBB_BottomY(elemSize, texX, texY, fastBmp);
+			float leftX = GetSpriteBB_LeftX(elemSize, texX, texY, fastBmp);
+			float rightX = GetSpriteBB_RightX(elemSize, texX, texY, fastBmp);
+			
+			MinBB[block] = Utils.RotateY(leftX - 0.5f, bottomY, 0, angle) + centre;
+			MaxBB[block] = Utils.RotateY(rightX - 0.5f, topY, 0, angle) + centre;
+			CalcRenderBounds(block);
+		}
+		
+		unsafe static float GetSpriteBB_TopY(int size, int tileX, int tileY, FastBitmap fastBmp) {
+			for (int y = 0; y < size; y++) {
+				int* row = fastBmp.GetRowPtr(tileY * size + y) + (tileX * size);
+				for (int x = 0; x < size; x++) {
+					if ((byte)(row[x] >> 24) != 0)
+						return 1 - (float)y / size;
+				}
+			}
+			return 0;
+		}
+		
+		unsafe static float GetSpriteBB_BottomY(int size, int tileX, int tileY, FastBitmap fastBmp) {
+			for (int y = size - 1; y >= 0; y--) {
+				int* row = fastBmp.GetRowPtr(tileY * size + y) + (tileX * size);
+				for (int x = 0; x < size; x++) {
+					if ((byte)(row[x] >> 24) != 0)
+						return 1 - (float)(y + 1) / size;
+				}
+			}
+			return 1;
+		}
+		
+		unsafe static float GetSpriteBB_LeftX(int size, int tileX, int tileY, FastBitmap fastBmp) {
+			for (int x = 0; x < size; x++) {
+				for (int y = 0; y < size; y++) {
+					int* row = fastBmp.GetRowPtr(tileY * size + y) + (tileX * size);
+					if ((byte)(row[x] >> 24) != 0)
+						return (float)x / size;
+				}
+			}
+			return 1;
+		}
+		
+		unsafe static float GetSpriteBB_RightX(int size, int tileX, int tileY, FastBitmap fastBmp) {
+			for (int x = size - 1; x >= 0; x--) {
+				for (int y = 0; y < size; y++) {
+					int* row = fastBmp.GetRowPtr(tileY * size + y) + (tileX * size);
+					if ((byte)(row[x] >> 24) != 0)
+						return (float)(x + 1) / size;
+				}
+			}
+			return 0;
+		}
+	}
 }
\ No newline at end of file
diff --git a/ClassicalSharp/Entities/Components/HacksComponent.cs b/ClassicalSharp/Entities/Components/HacksComponent.cs
index 50af6558a..681a8849c 100644
--- a/ClassicalSharp/Entities/Components/HacksComponent.cs
+++ b/ClassicalSharp/Entities/Components/HacksComponent.cs
@@ -127,17 +127,18 @@ namespace ClassicalSharp.Entities {
 		
 		/// <summary> Sets the user type of this user. This is used to control permissions for grass,
 		/// bedrock, water and lava blocks on servers that don't support CPE block permissions. </summary>
-		public void SetUserType(byte value) {
+		public void SetUserType(byte value, bool setBlockPerms) {
 			bool isOp = value >= 100 && value <= 127;
 			UserType = value;
-			BlockInfo.CanPlace[Block.Bedrock] = isOp;
-			BlockInfo.CanDelete[Block.Bedrock] = isOp;
-
-			BlockInfo.CanPlace[Block.Water] = isOp;
-			BlockInfo.CanPlace[Block.StillWater] = isOp;
-			BlockInfo.CanPlace[Block.Lava] = isOp;
-			BlockInfo.CanPlace[Block.StillLava] = isOp;
 			CanSeeAllNames = isOp;
+			if (!setBlockPerms) return;
+			
+			BlockInfo.CanPlace[Block.Bedrock]    = isOp;
+			BlockInfo.CanDelete[Block.Bedrock]   = isOp;
+			BlockInfo.CanPlace[Block.Water]      = isOp;
+			BlockInfo.CanPlace[Block.StillWater] = isOp;
+			BlockInfo.CanPlace[Block.Lava]       = isOp;
+			BlockInfo.CanPlace[Block.StillLava]  = isOp;			
 		}
 		
 		/// <summary> Disables any hacks if their respective CanHackX value is set to false. </summary>
diff --git a/ClassicalSharp/Network/CPESupport.cs b/ClassicalSharp/Network/CPESupport.cs
index 81befcc27..2bb6e768a 100644
--- a/ClassicalSharp/Network/CPESupport.cs
+++ b/ClassicalSharp/Network/CPESupport.cs
@@ -14,7 +14,7 @@ namespace ClassicalSharp.Network {
 		internal int ServerExtensionsCount;
 		internal bool sendHeldBlock, useMessageTypes;
 		internal int envMapVer = 2, blockDefsExtVer = 2;
-		internal bool needD3Fix, extEntityPos, twoWayPing;
+		internal bool needD3Fix, extEntityPos, twoWayPing, blockPerms;
 		
 		public void Reset(Game game) {
 			ServerExtensionsCount = 0;
@@ -38,6 +38,8 @@ namespace ClassicalSharp.Network {
 				useMessageTypes = true;
 			} else if (ext == "ExtPlayerList") {
 				net.UsingExtPlayerList = true;
+			} else if (ext == "BlockPermissions") {
+				blockPerms = true;
 			} else if (ext == "PlayerClick") {
 				net.UsingPlayerClick = true;
 			} else if (ext == "EnvMapAppearance") {
diff --git a/ClassicalSharp/Network/Protocols/Classic.cs b/ClassicalSharp/Network/Protocols/Classic.cs
index 1c27de458..ab07dbfd7 100644
--- a/ClassicalSharp/Network/Protocols/Classic.cs
+++ b/ClassicalSharp/Network/Protocols/Classic.cs
@@ -59,7 +59,7 @@ namespace ClassicalSharp.Network.Protocols {
 			net.ServerMotd = reader.ReadString();
 			game.Chat.SetLogName(net.ServerName);
 			
-			game.LocalPlayer.Hacks.SetUserType(reader.ReadUInt8());
+			game.LocalPlayer.Hacks.SetUserType(reader.ReadUInt8(), !net.cpeData.blockPerms);
 			game.LocalPlayer.Hacks.HacksFlags = net.ServerName + net.ServerMotd;
 			game.LocalPlayer.Hacks.UpdateHacksState();
 		}
@@ -264,7 +264,7 @@ namespace ClassicalSharp.Network.Protocols {
 		}
 		
 		void HandleSetPermission() {
-			game.LocalPlayer.Hacks.SetUserType(reader.ReadUInt8());
+			game.LocalPlayer.Hacks.SetUserType(reader.ReadUInt8(), !net.cpeData.blockPerms);
 			game.LocalPlayer.Hacks.UpdateHacksState();
 		}
 		
diff --git a/src/Client/EntityComponents.c b/src/Client/EntityComponents.c
index b108a8023..b9bdbf00d 100644
--- a/src/Client/EntityComponents.c
+++ b/src/Client/EntityComponents.c
@@ -221,10 +221,11 @@ void HacksComp_ParseAllFlag(HacksComp* hacks, const UInt8* incFlag, const UInt8*
 	}
 }
 
-void HacksComp_SetUserType(HacksComp* hacks, UInt8 value) {
+void HacksComp_SetUserType(HacksComp* hacks, UInt8 value, bool setBlockPerms) {
 	bool isOp = value >= 100 && value <= 127;
 	hacks->UserType = value;
 	hacks->CanSeeAllNames = isOp;
+	if (!setBlockPerms) return;
 
 	Block_CanPlace[BLOCK_BEDROCK] = isOp;
 	Block_CanDelete[BLOCK_BEDROCK] = isOp;