diff --git a/src/town_gui.cpp b/src/town_gui.cpp
--- a/src/town_gui.cpp
+++ b/src/town_gui.cpp
@@ -1113,7 +1113,8 @@ public:
 		bool success = DoCommandP(tile, this->town_size | this->city << 2 | this->town_layout << 3 | random << 6,
 				townnameparts, CMD_FOUND_TOWN | CMD_MSG(errstr), cc, name);
 
-		if (success) this->RandomTownName();
+		/* Rerandomise name, if success and no cost-estimation. */
+		if (success && !_shift_pressed) this->RandomTownName();
 	}
 
 	virtual void OnClick(Point pt, int widget, int click_count)