Real Estate Wire: The Helmsley Building Could Hit the Market for $1.5B; Carnegie Park Going Co-Op

• The Commercial Observer interviews Gary Barnett of Extell. The developer discusses everything from his aggressive development stance to the “poor door” controversy that’s gotten everyone all riled up. [CO]
• An epic tale of murder at 31 Bond Street—the site of new condos coming to the NoHo market. [NYT]
• The “Gossip Girl Penthouse” at 1136 Fifth Avenue sold for $35M, $5M above asking. [TRD]
• The Upper East Side is cooler than Brooklyn, according to an Upper East Side resident. [The Daily Beast]
• Related Companies is turning Carnegie Park at 200 East 94th Street into a condo building. The move is right in line with the trend of converting rentals into highly profitable luxury condos. [NYDN]
• Owners of the landmarked The Helmsley Building at 230 Park Avenue may place the office tower on the market for $1.5 billion. [Crain’s]

The Helmsley (left). Image via Monday Properties; Carnegie Park (right)