This $8.5 million townhouse at 19 Sutton Place boasts an interesting backstory dating to the 1920s. The home–like most others in the area–was built as an unassuming brownstone in the late 1800s. In 1920, the wealthy literary agent Elisabeth Marbury, with her partner Elsie de Wolfe, a well-known decorator, moved to the block and hired an architect to transform a nearby townhouse into a neo-Georgian townhouse. Millionaires followed suit, moving in and redesigning the homes of Sutton Place. At 19 Sutton, banker B. Stafford Mantz transformed the brownstone into a “provincial Louis XVI townhouse of grey and brown brick” according to Daytonian in Manhattan. And today, the interior boasts elegant spaces with high ceilings, five wood-burning fireplaces, and its own elevator.