Astroc chairman Enrique Banuelos is the richest self-made newcomer on the Forbes billionaire list. Banuelos is one of nine new Spanish real estate and construction billionaires, with a combined fortune of $25 bn, on the list this year. At 41, Banuelos, who Forbes says is worth $7.7 bn (EUR 5.8 bn), is also the youngest of the Spanish real estate billionaires.