Washington, D.C.-based real estate company Quadrangle Development this week unveiled plans to develop a massive residential project with a hotel and public park space on a 5.5-acre property in Rosslyn ...

FILE - The old Key Bridge Marriott in Arlington County stands in June 2024 ahead of an expected demolition. (WTOP/Shayna Estulin) For years, a piece of valuable real estate at the site of the former ...