Lee tells The New York Times that the 1950s Colonial in the northern Westchester County enclave of New Castle will be listed for $2.3 million.
Lee says she and Cuomo are empty nesters now that his three daughters are adults.
Lee owns the house; Cuomo says he shares living and tax expenses.
After the Page Six column reported breakup rumors on Tuesday, Lee told the New York Post on Facebook to "knock it off" and said they're "very much together."
She tells the Times they'll divide their time among her New York City apartment, the governor's mansion and the Hamptons.
Information from: The New York Times, http://www.nytimes.com
Copyright 2019 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.