2020 O Street, NWWashington, DC 20036 Phone: +1 202-496-2020Fax: +1 202-833-8333 Hotel E-mailHotel Website Classification 6 First Class Commission Rooms Rates 10% 100 $350-$4,000 (USD) Hoteliers! Is your information accurate? Update Here The Mansion on O Street Location & Neighborhood Tree lined street in fashionable Dupont Circle district - 5.700 MI, 10 min from Ronald Reagan Natl airport. 1 MI from Washington DCNearest Cross Street: O Street