Spain’s new housing decree aims to unlock the country’s three‑million vacant homes by giving owners a financial nudge to sell them to public bodies that build affordable housing. The government’s plan ties tax incentives to sales completed by 2028, making it cheaper for private landlords to part with empty properties and hand them over to agencies focused on social‑rent projects. By turning idle houses into homes for families, officials hope to ease the housing crunch while rewarding sellers with lower taxes. If the scheme works, dozens of neighborhoods could see a boost in available rentals and a drop in long‑standing vacancy rates.