diff --git a/src/res/kingdoms/buildings.xml b/src/res/kingdoms/buildings.xml
new file mode 100644
index 000000000..1aac7682a
--- /dev/null
+++ b/src/res/kingdoms/buildings.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<buildings>
+
+  <building name="castle" capacity="1">
+    <construction skill="building" minskill="1" reqsize="1">
+      <requirement type="stone" quantity="1" recycle="0.5"/>
+    </construction>
+  </building>
+
+</buildings>