Index: binaries/data/mods/public/simulation/components/BuildRestrictions.js
===================================================================
--- binaries/data/mods/public/simulation/components/BuildRestrictions.js
+++ binaries/data/mods/public/simulation/components/BuildRestrictions.js
@@ -32,10 +32,15 @@
 			"</oneOrMore>" +
 		"</list>" +
 	"</element>" +
-	"<element name='Category' a:help='Specifies the category of this building, for satisfying special constraints. Choices include: Apadana, Barracks, CivilCentre, Colony, Council, DefenseTower, Dock, Embassy, Farmstead, Fence, Field, Fortress, Hall, House, Kennel, Library, Market, Monument, Outpost, Pillar, Resource, Special, Stoa, Storehouse, Temple, Theater, UniqueBuilding, Wall, Wonder'>" +
+	"<element name='Category' a:help='Specifies the category of this building, for satisfying special constraints. Choices include: Apadana, Barracks, CivilCentre, Colony, Council, DefenseTower, Dock, Embassy, Farmstead, Fence, Field, Fortress, Hall, House, Kennel, Library, Lighthouse, Market, Monument, Outpost, Pillar, Resource, Special, Stoa, Storehouse, Temple, Theater, UniqueBuilding, Wall, Wonder'>" +
 		"<text/>" +
 	"</element>" +
 	"<optional>" +
+		"<element name='Special' a:help='Specifies a special constraint. Choices include: Dock'>" +
+			"<text/>" +
+		"</element>" +
+	"</optional>" +
+	"<optional>" +
 		"<element name='Distance' a:help='Specifies distance restrictions on this building, relative to buildings from the given category.'>" +
 			"<interleave>" +
 				"<element name='FromClass'>" +
@@ -221,7 +226,7 @@
 	}
 
 	// Check special requirements
-	if (this.template.Category == "Dock")
+	if (this.template.Special && this.template.Special == "Dock")
 	{
 		// TODO: Probably should check unit passability classes here, to determine if:
 		//		1. ships can be spawned "nearby"
Index: binaries/data/mods/public/simulation/templates/special/player.xml
===================================================================
--- binaries/data/mods/public/simulation/templates/special/player.xml
+++ binaries/data/mods/public/simulation/templates/special/player.xml
@@ -33,7 +33,7 @@
       <UniqueBuilding>1</UniqueBuilding>
       <Hall>2</Hall>
       <Stoa>2</Stoa>
-      <Kennel>5</Kennel>      
+      <Kennel>5</Kennel>
     </Limits>
     <LimitChangers>
       <WarDog>
Index: binaries/data/mods/public/simulation/templates/structures/brit_crannog.xml
===================================================================
--- binaries/data/mods/public/simulation/templates/structures/brit_crannog.xml
+++ binaries/data/mods/public/simulation/templates/structures/brit_crannog.xml
@@ -3,7 +3,7 @@
   <BuildRestrictions>
     <Territory>own ally neutral</Territory>
     <PlacementType>shore</PlacementType>
-    <Category>Dock</Category>
+    <Special>Dock</Special>
   </BuildRestrictions>
   <Footprint replace="">
     <Circle radius="15.5"/>
Index: binaries/data/mods/public/simulation/templates/structures/ptol_lighthouse.xml
===================================================================
--- binaries/data/mods/public/simulation/templates/structures/ptol_lighthouse.xml
+++ binaries/data/mods/public/simulation/templates/structures/ptol_lighthouse.xml
@@ -3,7 +3,8 @@
   <BuildRestrictions>
     <Territory>own ally neutral</Territory>
     <PlacementType>shore</PlacementType>
-    <Category>Dock</Category>
+    <Category>Lighthouse</Category>
+    <Special>Dock</Special>
   </BuildRestrictions>
   <Footprint replace="">
     <Circle radius="14.0"/>