They are freeing up ~10,000 houses over the next four years with this legislation. Barcelona built ~15,000 new properties between 2011 and 2020.
The math don't math. It's a drop in the bucket. The entire impact of AirBnB + all housing built in the last decade does not offset the last half decade of population growth.
Housing must be built more quickly than your population is growing to keep prices down, or you must concede that you live in a nice area where people wealthier than you wish to be and that those people are going to gentrify the area and displace locals. It's an unpleasant reality of the world.
EDIT: some good feedback in the responses. thanks! I'm being a bit dramatic by saying it's just a drop in the bucket, this action frees up more housing than was built over the same timespan, and it's possible to have effects on pricing greater than what would be inferred by the raw numbers because economics is tricky. cheers.
Since this is HN, I was expecting a little more rigor in proving the math not mathing: how many people can be housed in 15 000[1] + 10 000 houses? How small is the drop and how big is the bucket?
From sibling comment, average density is 2.51 people per home * 25k houses which works out to 62 750 housed people out of the 100 000 population growth. If my math is correct, that is significantly more than a drop in the bucket, considering the Airbnb component is 40% of that number, or just over 25k people - which is a big drop indeed for a 100k bucket
[1] Edit: I later realized your comment has numbers from multiple time windows. Substitute "15 000" with whatever number of houses were built/added in the past 4 years.
I think it's fair to say I'm being dramatic by saying it's a drop in the bucket. The action frees up more housing than Barcelona built over the same time period. This is good.
However, it's still not a long-term solution. This is a one-time action that when taken, and combined with the housing being built, fails to provide for even 50% of the people moving to the city.
Voters want a solution that makes living more affordable not just one that makes it less affordable less quickly.
As an aside, I think people can become complacent when a one-time solution to a problem lessens the pain momentarily. Suddenly the issue isn't as high of a priority and so the underlying situation continues to exacerbate the problem.
What will voters do in a few more years when this lever doesn't exist to pull? Ban all foreigners?
Because Spain's high unemployment, in particular youth unemployment and the construction sector, actions that reduce tourism lead to fewer jobs and less income flowing into the city.
I'm not against the measure (last time in Barcelona I was in a hotel and my friends rented an AirBnB apartment instead; they had fun and I had to move hotel rooms because the guy above me flooded the bathtub), and excessive tourism (Barcelona, Edinburgh, Amsterdam all suffer from it) is annoying even putting housing prices and lack of availability to the side, but I just wonder.
Well maybe you will just tell Spanish government how to replace that?