The longtime Upper West Side home of Peter Yarrow, who rose to fame as part of the popular folk group Peter, Paul and Mary, is being sold by his estate, nearly four months after his death from bladder cancer.

The asking price for the apartment, a loftlike duplex at 27 West 67th Street, known as an artists’ studio building, is $4.44 million, according to the listing broker, Michael Graves of Douglas Elliman Real Estate, who was also a personal friend. Monthly maintenance is $7,589.

Mr. Yarrow bought the unit, off Central Park West near Lincoln Center, in the early 1980s and raised his children, Christopher and Bethany, there. He held group rehearsals in the double-height great room and hosted fund-raising events and get-togethers there with musicians like Pete Seeger, Harry Belafonte and Neil Sedaka, along with politicians and activists.

“It was a hub of music and art and culture and activism,” said Bethany Yarrow, who runs two nonprofit environmental groups and is herself a folk singer. (Christopher Yarrow is a songwriter.) “There was an extraordinary wave of human beings passing through and singing all the songs of the great movements,” she said.