How I mapped 10 000 illegal Airbnbs with Python

Juan Luis Cano Rodríguez

In the spring of 2024, a cry erupted across Spain: "The Canary Islands have reached their limit." Soon, massive demonstrations followed in other regions facing similar tensions: "Mallorca is not for sale," "Enough of Ibiza," "Cantabria will defend itself." Meanwhile, in Madrid, the capital, a similar discontent had been brewing for years. Could open data be used to understand the phenomenon, and do something about it?