Talk of the Townhouse

The Upper East Side townhouse that once belonged to famed photographer Richard Avedon and then Olivier Sarkozy — before he divorced his wife to shack up with Mary-Kate Olsen — just sold for $11.4 million to a mystery buyer. The home, at 407 E. 75th Street, was last listed for $12.5 million.

The four-story, six-bedroom, nine-bathroom townhouse was originally a carriage house. It is 25 feet wide, with dramatic features including a black-and-white stairwell, a dining room with a wood-burning fireplace and a state-of-the-art chef’s kitchen. The master suite takes up the entire third floor and includes two wood-burning fireplaces — one in the study and one in the bedroom. That level also has a private terrace.

Listing broker Emily Beare of Core declined to comment.