 The Taconic State Parkway was opened through most of Westchester County by the early 1930s, making it easier to commute by car into the city via the Taconic and the Bronx River Parkway.Land values in areas near parkway exits, like Juniper Ledge, went up as more people sought to live as Catt had.Much of the house's original land was disposed of this way over the next decades, including a parcel with the chauffeur's house, later extensively modified.