We had exactly the same issue when building a Leaflet map from GeoServer layers. The issue proved to be an incorrect definition of ESPG:27700:
+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 +x_0=400000 +y_0=-100000 +ellps=airy +datum=OSGB36 +units=m +no_defs What we have now is: +proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 +x_0=400000 +y_0=-100000 +ellps=airy +towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489 +units=m +no_defs Could this be your issue? -- View this message in context: http://osgeo-org.1560.x6.nabble.com/WMS-layer-offset-200m-SW-of-true-location-tp3790769p5160283.html Sent from the GeoServer - User mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users