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Westfields Marriott Washington Dulles

Plan Groups, Events & Meetings at Our Hotel

14750 Conference Center Drive · Chantilly, Virginia 20151 USA

Westfields Marriott Washington Dulles

Event Spaces

Modern, impeccably designed and perfectly located, Westfields Marriott Washington Dulles provides a wonderful backdrop for meetings in the Fairfax County suburb of Chantilly. Explore our contemporary rental venues and event spaces and let us help you plan your function.

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Abundance of Space to Meet Your Needs

Take full advantage of our hotel's 31 meeting rooms and 40,000 square feet of flexible event space, including 20,000 square feet of strategically located pre-function space. Each venue offers individually controlled, multi-level lighting and evenly-distributed acoustics to make the most of your meeting or event.

Let us elevate your Chantilly meeting experience in every way. Ask about our fantastic overnight accommodations to event space ratio, where you can make our space exclusively yours with 200 to 300 peak group nights. Westfields Marriott Washington Dulles is more than a conference center - we're a collaboration center.

Washingtonian Ballroom

Our largest event venue, the Washingtonian Ballroom, provides an impressive 7,615 square feet of space. It can accommodate up to 800 people for a theater-style setup or up to 490 for a banquet event.

Conference Suites

We offer five dedicated conference suite venues with indoor/outdoor access, ideal for hospitality suites or VIP rooms.

Sunset Terrace

Perfect for banquets and receptions, this 9,000-square-foot patio is a superb space for evening events; it offers picturesque woodland views and can be transformed for use during all seasons and weather conditions.

Fairfax Dining Room

Open daily for breakfast, lunch and dinner in a buffet-style format, Fairfax is an excellent social venue with natural lighting and a country club feel. It is often used as a conference dining space.


Host productive keynote events or screenings in our dedicated amphitheater, which can seat up to 180 guests.

Additional Event Spaces

Whether you require one impressive space or the versatility of smaller, more intimate venues, our ballrooms can be adjusted to meet your requirements. From new linenless tables and executive-style swivel chairs to the very latest in meeting technology, we are confident that our meeting facilities and services will make your Fairfax County event shine.

Jeffersonian Room

Inspire productivity our Jeffersonian Room venue. Whether your next event requires conference- or schoolroom-style seating, you'll find this flexible meeting space perfectly suited to your needs.

Adams Boardroom

For privacy, impeccable service and the latest audiovisual technologies, look no further than the elegantly appointed Adams Boardroom. Meet with our event planners and take advantage of a world of possibilities.

Treaty Room

Host your event in this comfortable, upgraded and private dining space and let our catering team create a delicious menu.

Westscot Room

Whether you are organizing a small meeting or family dinner in Chantilly, this venue is the perfect place to sit back and relax over a delectable meal.

Studio Boardroom

The Studio Board Room is a soundproof meeting venue with the latest technology, ideal for viewing videos, collaborative working sessions or team brainstorming. Equipment includes streaming Wi-Fi devices, a 70-inch screen, touch screen capabilities, customizable lighting and studio speakers.

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