Aloft by Marriott Chicago Downtown River North — Event Spaces, Floor Plans & Capacities

515 N Clark St, Chicago, IL 60654

6 rooms · largest space: River Room, 1,919 sq ft178 m²

Aloft by Marriott Chicago Downtown River North gives Chicago event planners 6 rooms to work with. The largest space is River Room, 1,919 sq ft178 m² (divisible into 3 sections). It holds up to 200 guests. Review the layouts and seating capacities below, then test your setup in 3D — free.

Plan an event in River Room: open a free to-scale layout seating 80 at round tables in its 64 × 30 ft footprint at floors.live/start — no account needed.

Across its 6 rooms, Aloft by Marriott Chicago Downtown River North handles theater-style sessions for up to 200 and seated banquets for 170. 3 smaller rooms suit breakouts and board meetings. Exact figures for every room and setup style are in the chart below.

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Unverified listing — compiled from Aloft by Marriott Chicago Downtown River North’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/illinois/chicago/aloft-by-marriott-chicago-downtown-river-north/?claim=1.

Floor plans

Detailed floor plans for Aloft by Marriott Chicago Downtown River North are published on the venue’s official site.

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Room capacities & dimensions

6 rooms, 9 configurations. Combined and divided set-ups are listed under their room.

Room capacities and dimensions for Aloft by Marriott Chicago Downtown River North
SpaceSq ft / m²CeilingBanquetTheaterClassroomConferenceU-Shape
Clark RoomPlan this room →702 sq ft65 m²9 ft2.7 m4060362021
Dearborn RoomPlan this room →702 sq ft65 m²8 ft2.4 m4060362021
River Room APlan this room →638 sq ft59 m²9 ft2.7 m4045322021
3 configurations with River Room A
Combined and divided set-ups that include River Room A
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomConferenceU-Shape
River RoomPlan this room →1,919 sq ft178 m²9 ft2.7 m1702001204663
River Room ABPlan this room →1,160 sq ft108 m²9 ft2.7 m90120602845
River Room BCPlan this room →1,363 sq ft127 m²9 ft2.7 m90120604645
River Room BPlan this room →522 sq ft48 m²9 ft2.7 m3040201818
River Room CPlan this room →725 sq ft67 m²9 ft2.7 m5080352228
TacticPlan this room →392 sq ft36 m²9 ft2.7 m———10—

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 Chicago.

Frequently asked questions

What is the floor plan of Aloft by Marriott Chicago Downtown River North?

Aloft by Marriott Chicago Downtown River North has 6 rooms. The largest space is River Room, 1,919 sq ft (64.4 × 29.8 ft). Every room's dimensions and seating capacity by setup are listed on this page. Aloft by Marriott Chicago Downtown River North's own floor plans are published on its website, linked from this page.

How many event rooms does Aloft by Marriott Chicago Downtown River North have?

Aloft by Marriott Chicago Downtown River North has 6 rooms. 9 configurations are listed on this page.

What is the largest space at Aloft by Marriott Chicago Downtown River North?

River Room, 1,919 sq ft (divisible into 3 sections): 64.4 × 29.8 ft, 170 banquet / 200 theater.

How many people can Aloft by Marriott Chicago Downtown River North seat for a banquet?

Up to 170 in River Room. The next largest room, Clark Room, seats 40.

Can River Room be divided?

Yes. River Room divides into 3 sections: River Room A, River Room B, River Room C.

What is the ceiling height at Aloft by Marriott Chicago Downtown River North?

The highest ceiling is 9 ft, in Clark Room.

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