$8.995 Million, 23 Downing St.: This five-story landmarked West Village townhouse maintains its original early-19th-century facade, yet it has been nothing short of “remastered” on the inside. Its 3,700 square feet (with four bedrooms and four-plus bathrooms) is filled with 21st-century amenities like “professional-grade” appliances, radiant-heat floors and central air. The 900 exterior square feet include a rooftop terrace and a gorgeous private garden. Agents: Emily Beare and David Beare, CORE, 212-726-0786 and 212-726-0743