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Westfields Marriott Washington Dulles

Event Spaces

Explore our exceptional event venues and meeting spaces at Westfields Marriott Washington Dulles. Located in Chantilly, Virginia, our hotel offers well-appointed venues for all types of corporate functions, as well as excellent catering and event planning services.

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Abundance of Space to Meet Your Needs

Elevate your Northern Virginia meeting experience at our hotel. Select from 31 event venues and 40,000 square feet of flexible space, from VIP meeting rooms and breakout spaces to abundant and strategically located pre-function spaces. All of our Chantilly venues feature individually controlled, multi-level lighting and evenly distributed acoustics to accentuate your event. Ask about our fantastic overnight accommodations to event space ratio, where you can make our venues exclusively yours with 200 to 300 peak group nights.

Washingtonian Ballroom

Take advantage of 7,615 square feet of elegant event space in our Washingtonian Ballroom. Our largest event venue can accommodate up to 800 people for a conference or up to 490 for a banquet, making it perfectly suited for high-attendance gatherings in Fairfax County.

Conference Suites

Choose among five dedicated conference suite venues with indoor/outdoor access. Host board meetings, cocktail parties and other intimate events in our hospitality suites, VIP rooms or breakout spaces.

Sunset Terrace

Our 9,000-square-foot patio venue is ideal for evening events, banquets and receptions in Northern Virginia. Take in picturesque woodland views or starry skies as you mingle with yourguests. This charming and unique space can be tented to accommodate Chantilly's seasons and weather conditions.

Fairfax Room

From innovative meetings to elaborate social events, our Fairfax Room venue can host any occasion. Boasting an abundance of natural light with large picture windows, this unique event space also provides the setting for a reception, buffet-style breakfast or plated lunch.

Lincoln Forum

Seat up to 180  guests in our dedicated amphitheater, the Lincoln Forum. This distinguished space offers an ideal space for keynote speeches, screenings, or corporate events in Chantilly.

Additional Event Spaces

Configure our versatile venues into one large space or smaller, more intimate spaces as your event requires. Our Chantilly hotel offers new linenless tables, executive-style swivel chairs and the very latest in event technology.

Jeffersonian Ballroom

Explore our Jeffersonian Ballroom as your venue for a successful corporate event. Ideally suited for theater-style or schoolroom-style seating arrangements, this event space is perfect for a holding conferences or training sessions in Northern Virginia.


Our intimate, elegantly appointed Adams venue offers utmost privacy and provides high-end AV technology for your event needs. Discuss the possibilities with our team of dedicated event planners.


Choose our Treaty venue for intimate dinners or VIP events. Enjoy privacy and comfort in this updated event space. Our culinary staff will be delighted to work with you to create the ideal menu for your Fairfax County event.


Sit back and relax over a delicious meal in our Westscot venue. Ideal for intimate events and gatherings, this space features contemporary décor and a prime location in Chantilly.


Select our soundproof event venue with state-of-the-art technology. Brainstorm, collaborate, or view videos with your team in our hotel's modern, flexible Studio space. This fully equipped venue offers streaming Wi-Fi devices, a 70-inch screen, touch screen capabilities, customizable lighting and studio speakers.

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