Problem importing WFS layer into QGIS

Question

I am trying to import a WFS layer into QGIS. I tried the normal procedure, Add WFS Layer, and it does not display any boxes. When I click on Add, it throws an error:

Layer is not valid: The layer restrictToRequestBBOX='1' srsname='EPSG:4326' typename='bu:Building' url='http://ovc.catastro.meh.es/INSPIRE/wfsBU.aspx' version='auto' table="" sql= nis not valid and cannot be added to the map

I also tried the WFS 2.0 Plugin and in this case, I was able to download some vectorial data which seemed to be ok, but only if I was zooming very close to extract some features. When I zoom out to get the extent I need (or even a bit more), I get the following error:

OWS Exception returned from the WFS: Area of extension out of limits.

However, I know there is data beyond my bounding box.

Am I doing something wrong? I also changed the EPSG several times and it did not work either.

Answer 1

According to this service description of the WFS the following rules apply to the usage of the service:

Limitaciones del servicio WFS:

• Búsqueda por caja de 4km2 y 5.000 elementos
• […]

Translated via Google Translate it means:

WFS Service Limitations:

• Search by box of 4km2 and 5,000 elements
• […]

This means, that the extension for a single request from the client is restricted to an area of not more than 4 km², which explains your described behaviour.