Google Maps displaying 787 11th Ave. in Hell's Kitchen, where Bill Ackman plans to move his office.

It's official: Hedge fund titan Bill Ackman is moving Pershing Square Capital to a new neighborhood.

His firm next year will take up residence in a West Side building, part of an area of Manhattan that's being transformed into an office and restaurant hub. The new digs will put Ackman in a 67,000-square-foot space at 787 11th Ave., between 54th and 55th streets.