I think the Spanish Government should step in, freeze any assets of any Constructor who has buit illegaly, fund a compensation scheme so that innocent buyers are FULLY refunded and then demolish the lot. Without demolitions and letting Developers of the hook Spain will never move forward in the fight against corruption.
BTW There has been some really negative comments in the Spanish Press re. Zapatero this weekend. Some are calling him ZETAPARO. maybe a play with words as PARO is unemployment in Spanish.