Aloft by Marriott Chicago Downtown River North — Event Spaces & Capacities
515 N Clark St, Chicago, IL 60654
Aloft by Marriott Chicago Downtown River North gives Chicago event planners 9 spaces to work with across 8,123 sq ft755 m² of function space. The largest room, River Room, hosts up to 200 guests. Review the layouts and seating capacities below, then test your setup in 3D — free.
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
| Space | Sq ft / m² | Ceiling | Banquet | Theater | Classroom | Conference | U-Shape |
|---|---|---|---|---|---|---|---|
| Clark RoomPlan this room → | 702 sq ft65 m² | 9 ft2.7 m | 40 | 60 | 36 | 20 | 21 |
| Dearborn RoomPlan this room → | 702 sq ft65 m² | 8 ft2.4 m | 40 | 60 | 36 | 20 | 21 |
| River RoomPlan this room → | 1,919 sq ft178 m² | 9 ft2.7 m | 170 | 200 | 120 | 46 | 63 |
| River Room APlan this room → | 638 sq ft59 m² | 9 ft2.7 m | 40 | 45 | 32 | 20 | 21 |
| River Room ABPlan this room → | 1,160 sq ft108 m² | 9 ft2.7 m | 90 | 120 | 60 | 28 | 45 |
| River Room BPlan this room → | 522 sq ft48 m² | 9 ft2.7 m | 30 | 40 | 20 | 18 | 18 |
| River Room BCPlan this room → | 1,363 sq ft127 m² | 9 ft2.7 m | 90 | 120 | 60 | 46 | 45 |
| River Room CPlan this room → | 725 sq ft67 m² | 9 ft2.7 m | 50 | 80 | 35 | 22 | 28 |
| TacticPlan this room → | 392 sq ft36 m² | 9 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.