Our building was designed with retail in mind, and since 1890 the ground floor has showcased everything from boutique jewelry to men’s shoes. The former retail space is now a high visibility, elegant, show-off event space.

Nicknamed the Owlstone after our mascot (carved between two pillars between the first and second levels of the building’s exterior), this is two floors of street-front views combined to offer one of the most elegant spaces in Washington D.C.

Connected by a private, sweeping staircase, the lobby is filled with sophistication and elegance: end-wood pine floors, original stucco applique and 14-foot ceilings with tin stenciled crown molding. An enormous glass display window invites branding, giving you a temporary address on DC’s most chic downtown street.

Tour the Building

We offer tours by appointment to see the entire building and help you envision your event.

Guests can reserve the entire building and host up to 850 in a multi-level event experience. Multiple floor combinations available; ask our helpful sales staff for options.

“I hosted an event at the National Union Building and I absolutely loved the venue. The staff were amazing, accommodating and very attentive. The venue is spotless and the decor is gorgeous”

Melanie W.