Real LI

Just like ex-husband Billy Joel, who wants to sell his Centre Island estate, supermodel Christie Brinkley might have a potential buyer for her Bridgehampton property. "There has been some activity," says Susan Breitenbach, senior vice president of the Corcoran Group, who is listing Tower Hill. Brinkley is asking $30 million. "We've had a couple of good showings," says Breitenbach. Earlier this week, as Real LI reported, broker Shawn Elliott said that his venture capitalist client wants to see Joel's house a second time. Joel is asking $32.5 million.