--- a/src/newgrf_house.cpp	Thu Apr 03 16:16:52 2008 +0000
+++ b/src/newgrf_house.cpp	Thu Apr 03 19:55:40 2008 +0000
@@ -322,6 +322,9 @@
 
 	if (GB(image, 0, SPRITE_WIDTH) != 0) DrawGroundSprite(image, pal);
 
+	/* End now, if houses are invisible */
+	if (IsInvisibilitySet(TO_HOUSES)) return;
+
 	foreach_draw_tile_seq(dtss, dts->seq) {
 		if (GB(dtss->image.sprite, 0, SPRITE_WIDTH) == 0) continue;