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The Westin Seattle Group Room Block Rates, Resort Fee Waiver & Attrition Calculator
Model 10–250 peak rooms at $265/nt ($28/nt resort fee waived), 1-per-40 comp credits, and 80% cumulative attrition protection.
Interactive TrueBlock™ & Banquet P&L Engine
The Westin Seattle — Room Block, Resort Fee Waiver & Banquet ‘++’ Calculator
Model your Seattle room block, 1-per-40 comp rooms, mandatory resort fee waiver, and 37.8% banquet ‘++’ multiplier.
25 Rooms
10 rooms (Exhibitor Team)250 rooms (Full Summit)
4 Nights (100 Rm-Nts)
2 Nights4 Nights (Show Std)6 Nights
60 Guests
25 VIPs150 Guests500 Attendees
Resort Fee Waiver
$3,240 Saved
$28/nt fee waived
1-per-40 Comp Credit
2 Comp Nights
Worth $614
80% Attrition Shield
20 Rm-Nts Flex
Cumulative pickup window
Audited Group P&L Receipt
100 Room-Nights (25/nt × 4 nts)
Standard Rack / OTA Rooms (+$28/nt Fee & Tax):$54,000
Conventions.com Block ($0 Resort Fee + 2 Comp Nts):$30,086
In-House F&B (+37.8% ++) & Monopoly AV:$16,371
MasterMSA Catering + Local Production AV:$11,206
Net Contracted Program Spend
$41,292
Total Audited Savings
$29,079
📞 Request 25-Room Block Sheet (Sara Chaval · (702) 576-1312)
Includes mandatory resort fee waiver, 80% cumulative attrition clause & zero-penalty outside AV rider.
The Westin Seattle — 8-Row Master Property & Group Contract Summary
Guest Room Inventory & Peak Group Allocation
891 Total Keys · Up to 374 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
47,541 Sq. Ft. Total · 24 Dedicated Meeting & Breakout Rooms
Optimal for 535–1,898 attendee conferences requiring simultaneous keynote and breakout tracks.
Largest Pillarless Ballroom Capacity
18,031 Sq. Ft. · 1,898 Theater · 1,336 Plated Banquet
Divisible soundproof airwalls; supports up to 90 standard 10×10 tabletop/exhibit booths (~200 gross sq. ft./booth) with 24-hour hold option.
Primary Convention Campus Connectivity
Seattle Convention Center (Arch & Summit) (8–12 min official show shuttle / rideshare)
Primary headquarter and exhibitor room-block anchor serving Seattle Convention Center (Arch & Summit).
Airport Transfer & Motorcoach Staging
SEA (Seattle-Tacoma International Airport) · 13.8 mi (20 mins off-peak / 35–48 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
$265/nt Group Block vs. $439/nt Peak Rack · 15.7% Seattle Convention Center & King County Tax
Mandatory $28/nt resort/destination fee is 100% waived when contracted through the Conventions.com Housing Desk (saves $233/room/night all-in).
Banquet F&B '++' Multiplier & Catering Minimums
$28,000 Ballroom Waiver Min · 25% Service + 10.25% Tax (+37.8% 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.