Catalonia sets strict conditions on the construction of mosques and other places of worship.
Muslims and evangelicals, the two biggest communities in Catalonia, will be even more difficult to open new mosques or churches. The Catalan Government has decided to reform a law approved in 2009 by the Tripartite include a reference to "tradition" and "history" as elements that the new centers of worship should "take account". The new standard being prepared by the Government of Artur Mas eliminates also the duty of municipalities to modify their development plans to provide land for religious use.
Source: El Pais
http://politica.elpais.com/politica/2011/08/30/actualidad/1314731319_167272.html