Meanwhile, on the Upper East Side, the late, great photographer Richard Avedon’s former carriage house has sold for $11.4 million to an undisclosed buyer. The manse, at 407 East 75th Street, had also been home to financier Olivier Sarkozy, half brother of ex-French President Nicolas Sarkozy, who lived in the historic townhouse before he divorced his wife and moved in with actress-turned-The-Row-cofounder Mary-Kate Olsen. The four-story, six-bedroom, nine-bathroom townhouse, last listed at $12.5 million, includes a black-and-white stairwell, full-floor master suite with two wood-burning fireplaces, and a private terrace. The listing broker was Emily Beare of CORE (127 Seventh Ave., 212-726-0786; corenyc.com).