100 M Street SE is an exceptional 12-story, approximately 240,500 SF Class A office building centrally located in the Capitol Riverfront neighborhood of Washington, DC. Completed in 2008 and developed by Opus East, the property offers efficient 30 × 30 ft column spacing and ~21,000 SF typical floor plates, and holds LEED Gold and WiredScore Silver certifications—affirming its strong energy performance and robust digital infrastructure. Tenants benefit from a comprehensive amenity package that includes a tenant-exclusive fitness center with showers and towel service, four levels of underground parking (including secure bike storage and EV charging), a modern conference center, and a rooftop terrace offering panoramic views of Nationals Park, the Anacostia River, and the city skyline. With direct adjacency to the Navy Yard–Ballpark Metro Station (Green Line), accessibility via Metrobus and Circulator routes, and proximity to I-395/I-295 and Ronald Reagan National Airport, the building provides excellent regional connectivity. Situated within a vibrant live/work/play district, 100 M Street SE is surrounded by restaurants, parks, trails, and retail—highlighted by nearby Whole Foods, Harris Teeter, Boilermaker Shops, Yards Park, and Canal Park—offering tenants an energetic yet convenient urban experience.