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← Westfields Marriott Washington Dulles Hub WESTFIELDS MARRIOTT WASHINGTON DULLES • WASHINGTON, D.C. PEER BENCHMARK
HotelScore™ 9.2 / 10
Compare Westfields Marriott Washington Dulles vs. Peer Washington, D.C. Convention Hotels
Side-by-side comparison of guest rooms, total meeting space sq. ft., largest ballroom sq. ft., and group block rates across Washington, D.C..
Westfields Marriott Washington Dulles vs. Peer Washington, D.C. Convention Hotels
| Convention Hotel | City / State | Guest Rooms | Total Event Space | Largest Ballroom | Meeting Rooms |
|---|---|---|---|---|---|
| Westfields Marriott Washington Dulles (Current) | Chantilly, VA | 335 | 44,910 sq. ft. | 3,783 sq. ft. | 15 |
| Gaylord National Resort & Convention Ctr | National Harbor, MD | 1,996 | 593,289 sq. ft. | 36,804 sq. ft. | 65 |
| Marriott Marquis Washington, DC | Washington, DC | 1,175 | 100,474 sq. ft. | 8,024 sq. ft. | 80 |
| Omni Shoreham Hotel Washington D.C. | Washington, DC | 832 | 100,000 sq. ft. | 15,718 sq. ft. | 22 |
| The Westin DC Downtown | Washington, DC | 807 | 77,872 sq. ft. | 8,500 sq. ft. | 36 |
| Hyatt Regency Crystal City at DCA Arpt | Arlington, VA | 686 | 55,000 sq. ft. | 13,284 sq. ft. | 28 |
| The National Conference Center | Leesburg, VA | 917 | 50,677 sq. ft. | 16,552 sq. ft. | 13 |
Westfields Marriott Washington Dulles — 8-Row Master Property & Group Contract Summary
Guest Room Inventory & Peak Group Allocation
335 Total Keys · Up to 141 Peak Group Block Rooms
Standard 1-per-40 cumulative complimentary room credit; request 1-per-35 comp ratio + 3 VIP suite upgrades at group rates during RFP.
Total Event Space & Breakout Room Ratio
44,910 Sq. Ft. Total · 15 Dedicated Meeting & Breakout Rooms
Optimal for 201–398 attendee conferences requiring simultaneous keynote and breakout tracks.
Largest Pillarless Ballroom Capacity
3,783 Sq. Ft. · 398 Theater · 280 Plated Banquet
Divisible soundproof airwalls; supports up to 19 standard 10×10 tabletop/exhibit booths (~200 gross sq. ft./booth) with 24-hour hold option.
Primary Convention Campus Connectivity
Walter E. Washington Convention Center (8–12 min official show shuttle / rideshare)
Primary headquarter and exhibitor room-block anchor serving Walter E. Washington Convention Center.
Airport Transfer & Motorcoach Staging
IAD (Washington Dulles International Airport) · 5.2 mi (14 mins off-peak / 26–36 mins peak)
Dedicated group porte-cochere / motorcoach staging lane available with 14-day advance manifest submission to hotel convention services.
Nightly Room Rate, Resort Fee & Tax Structure
$285/nt Group Block vs. $479/nt Peak Rack · 15.95% D.C. / National Harbor Hotel Occupancy Tax
Mandatory $32/nt resort/destination fee is 100% waived when contracted through the Conventions.com Housing Desk (saves $263/room/night all-in).
Banquet F&B '++' Multiplier & Catering Minimums
$28,000 Ballroom Waiver Min · 25% Service + 10% Tax (+37.5% Effective)
Contract F&B minimums on a cumulative multi-day program basis (breakfasts + breaks + reception combined) rather than per-room/per-day minimums.
Attrition, Cutoff & Cancellation Protection
80% Cumulative Pickup Allowance · 30-Day Cutoff · 100% Rebooking Resell Credit
Always insist on cumulative (not night-by-night) attrition calculation and a 'Resell Mitigation Clause' crediting any rooms resold by the hotel after cutoff.