Courtyard by Marriott Seattle Southcenter — Event Spaces, Floor Plans & Capacities

400 Andover Park W, Tukwila, WA 98188

4 rooms · largest space: St. Helens, 864 sq ft80 m²

Planning an event in Tukwila? Courtyard by Marriott Seattle Southcenter has 4 meeting and event rooms. The largest space is St. Helens, 864 sq ft80 m². It holds up to 100 guests. Capacity figures for every setup style are listed per room below.

Plan an event in St. Helens: open a free to-scale layout seating 30 at round tables in its 23 × 44 ft footprint at floors.live/start — no account needed.

Between them, the 4 rooms accommodate theater-style sessions for up to 100, seated banquets for 90 and standing receptions for 60. 3 smaller rooms suit breakouts and board meetings. Per-room dimensions and every published setup figure are listed below.

Plan your event in this space — free

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

Floor plans

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

View official floor plans at Marriott ↗Plan your event in this space — free

Work at this venue? to publish your official floor plans and 360° tours here — free.

Room capacities & dimensions

4 rooms

Room capacities and dimensions for Courtyard by Marriott Seattle Southcenter
Space	Sq ft / m²	Ceiling	Banquet	Theater	Classroom	Reception	Conference	U-Shape
BoardroomPlan this room →	142 sq ft13 m²	8 ft2.4 m	6	—	—	6	6	—
Puget SoundPlan this room →	625 sq ft58 m²	8 ft2.4 m	40	50	40	40	22	26
RainierPlan this room →	625 sq ft58 m²	8 ft2.4 m	40	50	40	40	22	26
St. HelensPlan this room →	864 sq ft80 m²	9.9 ft3 m	90	100	51	60	30	30

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.

Frequently asked questions

What is the floor plan of Courtyard by Marriott Seattle Southcenter?

Courtyard by Marriott Seattle Southcenter has 4 rooms. The largest space is St. Helens, 864 sq ft (23 × 44 ft). Every room's dimensions and seating capacity by setup are listed on this page. Courtyard by Marriott Seattle Southcenter's own floor plans are published on its website, linked from this page.

How many event rooms does Courtyard by Marriott Seattle Southcenter have?

Courtyard by Marriott Seattle Southcenter has 4 rooms.

What is the largest space at Courtyard by Marriott Seattle Southcenter?

St. Helens, 864 sq ft: 23 × 44 ft, 90 banquet / 100 theater.

How many people can Courtyard by Marriott Seattle Southcenter seat for a banquet?

Up to 90 in St. Helens. The next largest room, Puget Sound, seats 40.

What is the ceiling height at Courtyard by Marriott Seattle Southcenter?

The highest ceiling is 9.9 ft, in St. Helens.

More event venues near Tukwila

All event venues in Tukwila, WA →