In May, Mexican billionaire Carlos Slim, formerly the world’s richest man, listed his Upper East Side mansion at 1009 Fifth Avenue for $80 million — $36...

Mexican billionaire Carlos Slim, formerly the world’s richest man, is asking $80 million for the Upper East Side mansion he bought for $44 million five...

Liz Taylor would likely approve of the new tenant about to move into her former Midtown mansion.

The computer gaming company Atari that popularized early digital favorites such as Asteroids and Pong signed a new lease at Cohen Brothers Realty’s Murray...

Mexican billionaire Carlos Slim, the world’s richest man and the newly-minted owner of the Duke Semans Mansion on Fifth Avenue, has picked up another...

From left: Douglas Durst, Jody Durst, Andrew Cuomo, Marc Holliday and Andrew Mathias What do Douglas and Jody Durst, heads of the Durst Organization,...

An Upper East Side townhouse has just gone into contract to an anonymous buyer for upwards of $47 million, which would make for the...

The Duke Semans mansion at 1009 Fifth Avenue From the 2011 Data Book: Manhattan’s residential market was fairly lackluster in 2010, but it was...

19 East 70th Street The owners of the Knoedler Gallery townhouse at 19 East 70th Street have sold it for $31 million, just over...

For New York City real estate, 2010 in many ways marked a return to normalcy after the tumultuous aftermath of the financial crisis. As...

Carlos Slim, the Mexican billionaire behind this year’s priciest New York City residential deal, has purchased a Ramada brand hotel in Florida through his...

Paula Del Nunzio and the Duke Semans Mansion A commission dispute over the most expensive single residential purchase of 2010 has been settled, and...

Billionaire Slim’s New York real estate buys are no secret, but what about the rest of the holdings of the world’s richest man? Carlos...

Paula Del Nunzio and the Duke Semans Mansion Brown Harris Stevens is suing real estate developer Tamir Sapir for a breach of contract in...