Index: trunk/data/validator/geometry.mapcss
===================================================================
--- trunk/data/validator/geometry.mapcss	(revision 15940)
+++ trunk/data/validator/geometry.mapcss	(revision 15941)
@@ -165,10 +165,4 @@
 area[building][building!~/no|entrance/] {
   throwWarning: tr("Building inside building");
-}
-
-/* Building overlapping building (spatial test) */
-area[building][building!~/no|entrance/][any(tag("layer"),"0") = any(parent_tag("layer"),"0")] ⧉
-area[building][building!~/no|entrance/] {
-  throwWarning: tr("Overlapping buildings");
 }