--- a/src/town_cmd.cpp
+++ b/src/town_cmd.cpp
@@ -2662,20 +2662,19 @@
  * Checks whether the local authority allows construction of a new station (rail, road, airport, dock) on the given tile
  * @param tile The tile where the station shall be constructed.
  * @param flags Command flags. DC_NO_TEST_TOWN_RATING is tested.
+ * @return Succeeded or failed command.
  */
-bool CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags)
+CommandCost CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags)
 {
-	if (!Company::IsValidID(_current_company) || (flags & DC_NO_TEST_TOWN_RATING)) return true;
+	if (!Company::IsValidID(_current_company) || (flags & DC_NO_TEST_TOWN_RATING)) return CommandCost();
 
 	Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
-	if (t == NULL) return true;
-
-	if (t->ratings[_current_company] > RATING_VERYPOOR) return true;
-
-	_error_message = STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS;
+	if (t == NULL) return CommandCost();
+
+	if (t->ratings[_current_company] > RATING_VERYPOOR) return CommandCost();
+
 	SetDParam(0, t->index);
-
-	return false;
+	return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
 }