Seattle Marriott Waterfront — Event Spaces, Floor Plans & Capacities

2100 Alaskan Wy, Seattle, WA 98121

14 rooms · largest space: Grand Pacific Ballroom, 7,931 sq ft737 m²

Planning an event in Seattle? Seattle Marriott Waterfront has 14 meeting and event rooms. The largest space is Grand Pacific Ballroom, 7,931 sq ft737 m² (divisible into 7 sections). It holds up to 900 guests. Capacity figures for every setup style are listed per room below.

Plan an event in Grand Pacific Ballroom: open a free to-scale layout seating 480 at round tables in its 77 × 103 ft footprint at floors.live/start — no account needed.

Between them, the 14 rooms accommodate theater-style sessions for up to 900, seated banquets for 600 and standing receptions for 800. 3 smaller rooms suit breakouts and board meetings. Per-room dimensions and every published setup figure are listed below.

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Unverified listing — compiled from Seattle Marriott Waterfront’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/washington/seattle/seattle-marriott-waterfront/?claim=1.

Floor plans

Detailed floor plans for Seattle Marriott Waterfront are published on the venue’s official site.

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Room capacities & dimensions

14 rooms, 23 configurations. Combined and divided set-ups are listed under their room.

Room capacities and dimensions for Seattle Marriott Waterfront
SpaceSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Executive BoardroomPlan this room →700 sq ft65 m²11 ft3.4 m————13—
Grand Pacific APlan this room →660 sq ft61 m²16 ft4.9 m405432752018
9 configurations with Grand Pacific A
Combined and divided set-ups that include Grand Pacific A
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Grand Pacific A-CPlan this room →2,340 sq ft217 m²16 ft4.9 m1401981022406458
Grand Pacific A-DPlan this room →5,538 sq ft514 m²16 ft4.9 m340522312530104112
Grand Pacific ABPlan this room →1,650 sq ft153 m²16 ft4.9 m90144751654440
Grand Pacific BallroomPlan this room →7,931 sq ft737 m²16 ft4.9 m600900520800——
Grand Pacific BCPlan this room →1,650 sq ft153 m²16 ft4.9 m90144751654440
Grand Pacific D-GPlan this room →5,538 sq ft514 m²16 ft4.9 m340522312530104112
Grand Pacific E-GPlan this room →2,340 sq ft217 m²16 ft4.9 m1401981022406458
Grand Pacific EFPlan this room →1,650 sq ft153 m²16 ft4.9 m90144751654440
Grand Pacific FGPlan this room →1,650 sq ft153 m²16 ft4.9 m90144751654440
Grand Pacific BPlan this room →960 sq ft89 m²16 ft4.9 m508432902421
Grand Pacific CPlan this room →660 sq ft61 m²16 ft4.9 m405432752018
Grand Pacific DPlan this room →3,157 sq ft293 m²16 ft4.9 m1803242102904055
Grand Pacific EPlan this room →660 sq ft61 m²16 ft4.9 m405432752018
Grand Pacific FPlan this room →960 sq ft89 m²16 ft4.9 m508432902421
Grand Pacific GPlan this room →713 sq ft66 m²16 ft4.9 m405432752018
Harbor RoomPlan this room →1,026 sq ft95 m²11 ft3.4 m5088451002630
Hook & PlowPlan this room →4,800 sq ft446 m²—200——250——
Maritime RoomPlan this room →299 sq ft28 m²9 ft2.7 m————14—
Private Dining RoomPlan this room →530 sq ft49 m²—3030—2514—
Seaport RoomPlan this room →1,026 sq ft95 m²11 ft3.4 m5088451002630
Additional spaces (dimensions only) (1)
Additional spaces with published dimensions only at Seattle Marriott Waterfront
SpaceSq ft / m²Ceiling
RegistrationPlan this room →300 sq ft28 m²—

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

Sizing another room? Try the event room capacity calculator or the floor plan scale converter, or compare the largest event spaces in Seattle.

Frequently asked questions

What is the floor plan of Seattle Marriott Waterfront?

Seattle Marriott Waterfront has 14 rooms. The largest space is Grand Pacific Ballroom, 7,931 sq ft (77 × 103 ft). Every room's dimensions and seating capacity by setup are listed on this page. Seattle Marriott Waterfront's own floor plans are published on its website, linked from this page.

How many event rooms does Seattle Marriott Waterfront have?

Seattle Marriott Waterfront has 14 rooms. 23 configurations are listed on this page.

What is the largest space at Seattle Marriott Waterfront?

Grand Pacific Ballroom, 7,931 sq ft (divisible into 7 sections): 77 × 103 ft, 600 banquet / 900 theater.

How many people can Seattle Marriott Waterfront seat for a banquet?

Up to 600 in Grand Pacific Ballroom. The next largest room, Hook & Plow, seats 200.

Can Grand Pacific Ballroom be divided?

Yes. Grand Pacific Ballroom divides into 7 sections: Grand Pacific A, Grand Pacific B, Grand Pacific C, Grand Pacific D, Grand Pacific E, Grand Pacific F, Grand Pacific G.

What is the ceiling height at Seattle Marriott Waterfront?

The highest ceiling is 16 ft, in Grand Pacific A.

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