When Howard Ronson, a builder of modern office towers, looked for a Manhattan pied-à-terre some years ago, he was drawn to an unlikely destination—two floors of a lavishly decorated Fifth Avenue mansion built for a 19th-century coal baron.
But the purchase was only the beginning. When a maisonette duplex in the mansion became available the next year, he bought that, too. Then Mr. Ronson acquired another full-floor co-op in the building.
Michael Weinstein
The m… (View original article)