Apologies if there's already a thread on this. I couldn't see one.
I have no bone in this fight.
As far as I understand the tax would be applied to the new purchase of properties by non EU residents. Anyone from the EU would not be subjected to the tax and can carry on buying properties and renting them via Airbnb, etc. and it'll be even easier for investment groups to keep hoarding property and land as there will be less potential cash buyers.
Best case scenario, maybe 2/3 of prospective buyers from outside the EU won't purchase (that would be roughly 9000 properties in Spain, out of 27000 sold to non EU pp). I fail to see how anything that is being discussed could possibly help any housing problem, what am I missing?