Courtyard by Marriott Boston Cambridge — Event Spaces, Floor Plans & Capacities

777 Memorial Dr, Cambridge, MA 02139

9 rooms · largest space: Waterfront Ballroom, 2,652 sq ft246 m²

With 9 event rooms, Courtyard by Marriott Boston Cambridge is a flexible choice for meetings and celebrations in Cambridge. The largest space is Waterfront Ballroom, 2,652 sq ft246 m². It holds up to 240 guests. Full capacity details for each room are below.

Plan an event in Waterfront Ballroom: open a free to-scale layout seating 90 at round tables in its 52 × 51 ft footprint at floors.live/start — no account needed.

Between them, the 9 rooms accommodate theater-style sessions for up to 240, seated banquets for 190 and standing receptions for 230. 4 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 Courtyard by Marriott Boston Cambridge’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/massachusetts/cambridge/courtyard-by-marriott-boston-cambridge/?claim=1.

Floor plans

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

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Room capacities & dimensions

9 rooms

Room capacities and dimensions for Courtyard by Marriott Boston Cambridge
Space	Sq ft / m²	Ceiling	Banquet	Theater	Classroom	Reception	Conference	U-Shape
Bistro LoungePlan this room →	902 sq ft84 m²	9 ft2.7 m	40	—	—	—	—	—
Cambridge Executive BoardroomPlan this room →	240 sq ft22 m²	7.5 ft2.3 m	—	—	—	—	10	—
Charles River RoomPlan this room →	902 sq ft84 m²	10 ft3 m	60	70	30	70	30	25
Harvard Study SquarePlan this room →	212 sq ft20 m²	12 ft3.7 m	—	—	—	—	8	—
River Room Pre FunctionPlan this room →	855 sq ft79 m²	9 ft2.7 m	40	—	—	—	—	—
Waterfront BallroomPlan this room →	2,652 sq ft246 m²	12 ft3.7 m	190	240	130	230	80	70
Waterfront Ballroom - East WingPlan this room →	1,664 sq ft155 m²	12 ft3.7 m	90	120	60	130	45	35
Waterfront Ballroom - West WingPlan this room →	1,092 sq ft101 m²	12 ft3.7 m	70	100	50	100	35	30
Waterfront Ballroom Pre FunctionPlan this room →	855 sq ft79 m²	9 ft2.7 m	—	—	—	90	—	—

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 Boston Cambridge?

Courtyard by Marriott Boston Cambridge has 9 rooms. The largest space is Waterfront Ballroom, 2,652 sq ft (52 × 51 ft). Every room's dimensions and seating capacity by setup are listed on this page. Courtyard by Marriott Boston Cambridge's own floor plans are published on its website, linked from this page.

How many event rooms does Courtyard by Marriott Boston Cambridge have?

Courtyard by Marriott Boston Cambridge has 9 rooms.

What is the largest space at Courtyard by Marriott Boston Cambridge?

Waterfront Ballroom, 2,652 sq ft: 52 × 51 ft, 190 banquet / 240 theater.

How many people can Courtyard by Marriott Boston Cambridge seat for a banquet?

Up to 190 in Waterfront Ballroom. The next largest room, Waterfront Ballroom - East Wing, seats 90.

What is the ceiling height at Courtyard by Marriott Boston Cambridge?

The highest ceiling is 12 ft, in Harvard Study Square.

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