There are 13 units in the six-story building at 322 W. 90th St., which was built in 1936.
Mr. Gansis European general counsel at Citigroup's corporate and investment banking operations in New York City. Previously, he served as in-house counsel at Salomon Smith Barney.
He received his degree in international relations from the University of Cambridge and his J.D. from Washington University.
According to BlockShopper.com, there have been 386 condo sales on the Upper West Side over the past 12 months, with a median sales price of $785,000.
Address: 322 West 90th Street, Unit: 4f
Buyer(s): Steffens and Lisa M
Seller(s): Gans, Bradley, Gans and Sharon
Sale date: Sep. 4, 2009