Hi Ian,

I've just received the same article as Hazelnut about charging landlords a license fee to rent out property. It doesn't say too much on the article, but if it's only just been issued I suppose the best place to ask is your local town hall.
It threatens fines for people renting out property without declaring it of between 30 and 90k Euros.
Amazing
http://www.spanishpropertyinsight.com/buff/2010/11/22/catalonia-introduces-holiday-rental-licences-for-landlords/

Jools