Hedge fund billionaires George Soros and John Paulson have taken major stakes in Spanish property investment -- the very industry that had brought the country's economy to its knees five years ago. But this time around, analysts and new data suggest that this could be a bet that's worth a closer look.

Hispania, which is set to list on the Madrid Stock Exchange as a real estate investment trust (REIT), has raised 314 million euros ($433 million) from investors including Paulson and Soros according to a regulatory filing last week.