diff --git a/Bukkit/src/main/java/com/plotsquared/bukkit/listeners/PlayerEvents.java b/Bukkit/src/main/java/com/plotsquared/bukkit/listeners/PlayerEvents.java
index 3eb4a85b3..729c92cc1 100644
--- a/Bukkit/src/main/java/com/plotsquared/bukkit/listeners/PlayerEvents.java
+++ b/Bukkit/src/main/java/com/plotsquared/bukkit/listeners/PlayerEvents.java
@@ -73,6 +73,7 @@ import org.bukkit.event.block.BlockBurnEvent;
 import org.bukkit.event.block.BlockDamageEvent;
 import org.bukkit.event.block.BlockDispenseEvent;
 import org.bukkit.event.block.BlockFadeEvent;
+import org.bukkit.event.block.BlockFormEvent;
 import org.bukkit.event.block.BlockFromToEvent;
 import org.bukkit.event.block.BlockGrowEvent;
 import org.bukkit.event.block.BlockIgniteEvent;
@@ -833,6 +834,27 @@ public class PlayerEvents extends PlotListener implements Listener {
         }
     }
 
+    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
+    public void onBlockSpread(BlockFormEvent event) {
+        Block block = event.getBlock();
+        Location location = BukkitUtil.getLocation(block.getLocation());
+        if (location.isPlotRoad()) {
+            event.setCancelled(true);
+            return;
+        }
+        PlotArea area = location.getPlotArea();
+        if (area == null) {
+            return;
+        }
+        Plot plot = area.getOwnedPlot(location);
+        if (plot == null) {
+            return;
+        }
+        if (Flags.SNOW_FORM.isFalse(plot)) {
+            event.setCancelled(true);
+        }
+    }
+
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onBlockDamage(BlockDamageEvent event) {
         Player player = event.getPlayer();
diff --git a/Core/src/main/java/com/intellectualcrafters/plot/flag/Flags.java b/Core/src/main/java/com/intellectualcrafters/plot/flag/Flags.java
index beb9b65f9..7df35cd50 100644
--- a/Core/src/main/java/com/intellectualcrafters/plot/flag/Flags.java
+++ b/Core/src/main/java/com/intellectualcrafters/plot/flag/Flags.java
@@ -50,6 +50,7 @@ public final class Flags {
     public static final BooleanFlag DISABLE_PHYSICS = new BooleanFlag("disable-physics");
     public static final BooleanFlag LIQUID_FLOW = new BooleanFlag("liquid-flow");
     public static final BooleanFlag SNOW_MELT = new BooleanFlag("snow-melt");
+    public static final BooleanFlag SNOW_FORM = new BooleanFlag("snow-form");
     public static final BooleanFlag ICE_MELT = new BooleanFlag("ice-melt");
     public static final BooleanFlag FIRE_SPREAD = new BooleanFlag("fire-spread");
     public static final BooleanFlag BLOCK_BURN = new BooleanFlag("block-burn");