The Westin Seattle — Event Spaces & Capacities

1900 5th Ave, Seattle, WA 98101

Planning an event in Seattle? The Westin Seattle has 40 function rooms across 94,715 sq ft8,799 m² of function space. The largest room, Grand Ballroom, hosts up to 2,000 guests. Capacity figures for every setup style are listed per room below.

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Floor plans

Detailed floor plans for The Westin Seattle are published on the venue’s official site.

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Room capacities & dimensions

Room capacities and dimensions for The Westin Seattle
SpaceCeiling
AdamsPlan this room →525 sq ft49 m²8 ft2.4 m405024652020
BakerPlan this room →378 sq ft35 m²8 ft2.4 m203015351615
BlakelyPlan this room →525 sq ft49 m²8 ft2.4 m405024652020
Cascade BallroomPlan this room →5,200 sq ft483 m²17 ft5.2 m4005803455506084
Cascade Ballroom IPlan this room →2,600 sq ft242 m²17 ft5.2 m2002751702704060
Cascade Ballroom I-APlan this room →840 sq ft78 m²17 ft5.2 m708040802630
Cascade Ballroom I-BPlan this room →840 sq ft78 m²17 ft5.2 m708040802630
Cascade Ballroom I-CPlan this room →840 sq ft78 m²17 ft5.2 m708040802630
Cascade Ballroom IIPlan this room →2,600 sq ft242 m²17 ft5.2 m2002751702704060
Cascade Foyer NorthPlan this room →2,100 sq ft195 m²————250——
Cascade Foyer SouthPlan this room →1,700 sq ft158 m²————120——
DennyPlan this room →357 sq ft33 m²8 ft2.4 m305018401615
Elliott BayPlan this room →2,200 sq ft204 m²—2201801002203039
Elliott Bay ReceptionPlan this room →1,300 sq ft121 m²8 ft2.4 m80100—125——
Fifth Avenue RoomPlan this room →3,444 sq ft320 m²9 ft2.7 m3003802403757887
Glacier PeakPlan this room →324 sq ft30 m²8 ft2.4 m————12—
Grand BallroomPlan this room →18,030 sq ft1,675 m²20 ft6.1 m1,5802,0001,2002,000——
Grand CrescentPlan this room →1,430 sq ft133 m²9 ft2.7 m110140701553636
Grand FoyerPlan this room →10,500 sq ft975 m²————950——
Grand IPlan this room →5,336 sq ft496 m²20 ft6.1 m43060035055080100
Grand IIPlan this room →5,336 sq ft496 m²20 ft6.1 m43060035055080100
Grand IIIPlan this room →7,360 sq ft684 m²20 ft6.1 m60080050078080107
MercerPlan this room →525 sq ft49 m²8 ft2.4 m305024502218
OlympicPlan this room →650 sq ft60 m²8 ft2.4 m607030702628
OrcasPlan this room →525 sq ft49 m²8 ft2.4 m405024652020
PikePlan this room →2,912 sq ft271 m²8 ft2.4 m1902001303005454
PinePlan this room →2,925 sq ft272 m²9 ft2.7 m2602301563005842
Puget Sound RoomPlan this room →2,964 sq ft275 m²10 ft3 m180160602206038
San Juan FoyerPlan this room →2,200 sq ft204 m²————120——
Seattle SuitePlan this room →790 sq ft73 m²8 ft2.4 m———4014—
St. HelensPlan this room →891 sq ft83 m²8 ft2.4 m809648902830
StuartPlan this room →459 sq ft43 m²8 ft2.4 m3040245020—
VashonPlan this room →1,350 sq ft125 m²8 ft2.4 m110140801454444
Vashon IPlan this room →486 sq ft45 m²8 ft2.4 m404030502023
Vashon IIPlan this room →864 sq ft80 m²8 ft2.4 m709050852627
Westlake BoardroomPlan this room →500 sq ft46 m²8 ft2.4 m304424402018
Westlake FoyerPlan this room →2,102 sq ft195 m²————220——
WhidbeyPlan this room →525 sq ft49 m²8 ft2.4 m405024652020
Additional spaces (dimensions only) (2)
Additional spaces with published dimensions only at The Westin Seattle
SpaceSq ft / m²Ceiling
Grand Convention OfficePlan this room →170 sq ft16 m²9 ft2.7 m
Grand Registration OfficePlan this room →112 sq ft10 m²8 ft2.4 m

Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.