National Union Building

4.6(234)

Event Venue

About

The National Union Building is a seven-floor Romanesque Revival landmark in downtown D.C.’s Chinatown/Penn Quarter, offering 27,000 square feet of versatile event space with original brickwork and cathedral ceilings. Eleven private rooms range from intimate lounges to expansive loft-style halls, including a hidden speakeasy and a demo kitchen for unique culinary experiences.

Centrally located near Gallery Place and Metro Center, this venue combines historic charm with modern amenities like built-in AV technology and flexible room configurations. Its inclusive approach covers rentals, staffing, food, and drinks, making it a seamless choice for conferences, off-sites, trainings, and corporate celebrations alike.

Best for

Corporate trainings & offsites
Client dinners & private receptions
Networking events with historic charm

Request a Package

Tell the venue what you're planning and they'll respond with a custom proposal within 1–2 business days.

Custom Package Request

Custom request

Not sure which package fits? Tell us about your event and the venue will work with you to build the right experience from scratch.

What's typically included

Space & layout
Food & beverage
AV & technology

Venue Details

Standout features

Historic Architecture

1890 Romanesque Revival landmark with original details

The venue features original brickwork, cathedral-like vaulted ceilings, and period charm that create a dramatic and distinctive ambiance uncommon in downtown DC event spaces.

Versatile Event Spaces

Seven floors with 11 unique rooms including a hidden speakeasy

From intimate lounges to expansive loft-style halls, the venue offers flexible configurations with modern AV and the ability to combine adjoining rooms for larger groups, supporting a wide range of corporate and social events.

At a glance

Rated 4.6 on Google · 234 reviews