diff --git a/src/main/java/xyz/valnet/hadean/interfaces/BuildableMetadata.java b/src/main/java/xyz/valnet/hadean/interfaces/BuildableMetadata.java
index 2da84de..89b2110 100644
--- a/src/main/java/xyz/valnet/hadean/interfaces/BuildableMetadata.java
+++ b/src/main/java/xyz/valnet/hadean/interfaces/BuildableMetadata.java
@@ -5,6 +5,11 @@ import java.lang.annotation.RetentionPolicy;
 
 @Retention(RetentionPolicy.RUNTIME)
 public @interface BuildableMetadata {
+
+  public static int AREA = 0;
+  public static int SINGLE = 1;
+
   public String name();
   public String category();
+  public int type() default AREA;
 }