Chicago Marriott Downtown Magnificent Mile — Event Spaces, Floor Plans & Capacities

540 North Michigan Avenue, Driveway Entrance on, 541 N Rush St, Chicago, IL 60611

56 rooms · largest space: Grand Ballroom, 19,193 sq ft1,783 m²

Planning an event in Chicago? Chicago Marriott Downtown Magnificent Mile has 56 meeting and event rooms. The largest space is Grand Ballroom, 19,193 sq ft1,783 m². It holds up to 2,200 guests. Capacity figures for every setup style are listed per room below.

Plan an event in Grand Ballroom: open a free to-scale layout seating 1,260 at round tables in its 92 × 208 ft footprint at floors.live/start — no account needed.

Between them, the 56 rooms accommodate theater-style sessions for up to 2,200, seated banquets for 1,824 and standing receptions for 2,000. 14 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 Chicago Marriott Downtown Magnificent Mile’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/illinois/chicago/chicago-marriott-downtown-magnificent-mile/?claim=1.

Floor plans

Detailed floor plans for Chicago Marriott Downtown Magnificent Mile are published on the venue’s official site.

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

Room capacities & dimensions

56 rooms, 73 configurations. Combined and divided set-ups are listed under their room.

Room capacities and dimensions for Chicago Marriott Downtown Magnificent Mile
SpaceCeiling
A/B,B/C,F/G,G/HPlan this room →1,922 sq ft179 m²15 ft4.6 m1202001201204651
A/B/C,F/G/HPlan this room →2,914 sq ft271 m²15 ft4.6 m204300180200——
AddisonPlan this room →2,014 sq ft187 m²10 ft3 m160190100150—50
ArmitagePlan this room →1,125 sq ft105 m²10 ft3 m96100561003430
Avenue BallroomPlan this room →2,340 sq ft217 m²10 ft3 m1922001122003648
BelmontPlan this room →1,144 sq ft106 m²10 ft3 m96100561003430
Chicago BallroomPlan this room →12,972 sq ft1,205 m²15 ft4.6 m1,1521,4007801,000——
2 configurations with Chicago Ballroom
Combined and divided set-ups that include Chicago Ballroom
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
1/2 Chicago BallroomPlan this room →6,486 sq ft603 m²15 ft4.6 m504700390400——
3/4 Chicago BallroomPlan this room →9,870 sq ft917 m²15 ft4.6 m8041,100600600——
ClarkPlan this room →2,010 sq ft187 m²10 ft3 m160190100150—50
CookPlan this room →684 sq ft64 m²10 ft3 m364830302220
D/EPlan this room →6,956 sq ft646 m²15 ft4.6 m600800420400——
DenverPlan this room →615 sq ft57 m²8 ft2.4 m486036401618
DupagePlan this room →684 sq ft64 m²10 ft3 m364830302220
GracePlan this room →612 sq ft57 m²10 ft3 m365530362626
Grand BallroomPlan this room →19,193 sq ft1,783 m²20 ft6.1 m1,8242,2001,2202,000——
Great America IPlan this room →403 sq ft37 m²9 ft2.7 m303015251615
1 configuration with Great America I
Combined and divided set-ups that include Great America I
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Great America I/IIPlan this room →1,002 sq ft93 m²9 ft2.7 m729045603836
Great America IIPlan this room →599 sq ft56 m²9 ft2.7 m406030402221
HalstedPlan this room →4,400 sq ft409 m²10 ft3 m300——300——
HoustonPlan this room →590 sq ft55 m²8 ft2.4 m486036401618
1 configuration with Houston
Combined and divided set-ups that include Houston
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Denver/HoustonPlan this room →1,200 sq ft111 m²8 ft2.4 m9612072803242
HuronPlan this room →720 sq ft67 m²8 ft2.4 m365527402220
IllinoisPlan this room →527 sq ft49 m²9 ft2.7 m404030301615
IndianaPlan this room →640 sq ft59 m²9 ft2.7 m486036401618
1 configuration with Indiana
Combined and divided set-ups that include Indiana
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Indiana/IowaPlan this room →1,254 sq ft117 m²9 ft2.7 m9612072753242
IowaPlan this room →614 sq ft57 m²9 ft2.7 m486036401618
KanePlan this room →1,056 sq ft98 m²10 ft3 m729060754039
Kansas CityPlan this room →700 sq ft65 m²8 ft2.4 m486036401618
1 configuration with Kansas City
Combined and divided set-ups that include Kansas City
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Denver/Houston/Kansas CityPlan this room →1,905 sq ft177 m²8 ft2.4 m144180100125—54
LakeviewPlan this room →792 sq ft74 m²8 ft2.4 m506040302216
Lincolnshire IPlan this room →462 sq ft43 m²9 ft2.7 m303015251615
1 configuration with Lincolnshire I
Combined and divided set-ups that include Lincolnshire I
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Lincolnshire I/IIPlan this room →1,061 sq ft99 m²9 ft2.7 m729045603836
Lincolnshire IIPlan this room →599 sq ft56 m²9 ft2.7 m406030402221
Los AngelesPlan this room →640 sq ft59 m²8 ft2.4 m486036401618
2 configurations with Los Angeles
Combined and divided set-ups that include Los Angeles
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Los Angeles/MiamiPlan this room →1,254 sq ft117 m²8 ft2.4 m9612072803242
Los Angeles/Miami/ScottsdalePlan this room →1,905 sq ft177 m²8 ft2.4 m144180100125—54
Marriott BallroomPlan this room →4,011 sq ft373 m²10 ft3 m2884002103004860
McHenryPlan this room →874 sq ft81 m²10 ft3 m507040503433
1 configuration with McHenry
Combined and divided set-ups that include McHenry
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Kane/McHenryPlan this room →1,938 sq ft180 m²10 ft3 m120160100125——
MiamiPlan this room →614 sq ft57 m²8 ft2.4 m486036401618
MichiganPlan this room →604 sq ft56 m²9 ft2.7 m486036401618
Michigan StatePlan this room →486 sq ft45 m²9 ft2.7 m405021401615
2 configurations with Michigan State
Combined and divided set-ups that include Michigan State
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Indiana/Iowa/Michigan/Michigan StatePlan this room →2,344 sq ft218 m²9 ft2.7 m180200120200—78
Michigan/Michigan StatePlan this room →1,090 sq ft101 m²9 ft2.7 m8411057753236
MinnesotaPlan this room →527 sq ft49 m²9 ft2.7 m404030401615
Navy PierPlan this room →720 sq ft67 m²8 ft2.4 m364021362220
NorthwesternPlan this room →640 sq ft59 m²9 ft2.7 m486036401618
2 configurations with Northwestern
Combined and divided set-ups that include Northwestern
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Northwestern/OhioPlan this room →1,254 sq ft117 m²9 ft2.7 m9612072753242
Northwestern/Ohio/Purdue/WisconsinPlan this room →2,344 sq ft218 m²9 ft2.7 m1802001202004878
O'HarePlan this room →960 sq ft89 m²8 ft2.4 m606836603432
OhioPlan this room →614 sq ft57 m²9 ft2.7 m486036401618
Old TownPlan this room →925 sq ft86 m²8 ft2.4 m————16—
Printers RowPlan this room →480 sq ft45 m²8 ft2.4 m242515201614
PurduePlan this room →604 sq ft56 m²9 ft2.7 m486036401620
River NorthPlan this room →572 sq ft53 m²8 ft2.4 m304021201616
Salon IPlan this room →5,444 sq ft506 m²20 ft6.1 m480550345500——
2 configurations with Salon I
Combined and divided set-ups that include Salon I
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Salon I/IIPlan this room →11,204 sq ft1,041 m²20 ft6.1 m1,0561,2007201,000——
Salon II/IIIPlan this room →13,749 sq ft1,277 m²20 ft6.1 m1,3441,6008801,400——
Salon IIPlan this room →5,760 sq ft535 m²20 ft6.1 m576650365550——
Salon IIIPlan this room →7,989 sq ft742 m²20 ft6.1 m768900540800——
ScottsdalePlan this room →614 sq ft57 m²8 ft2.4 m486036401618
SheffieldPlan this room →817 sq ft76 m²10 ft3 m506032503230
StreetervillePlan this room →540 sq ft50 m²8 ft2.4 m302521201620
WatertowerPlan this room →960 sq ft89 m²8 ft2.4 m606836603432
WisconsinPlan this room →486 sq ft45 m²8.6 ft2.6 m405021401615
1 configuration with Wisconsin
Combined and divided set-ups that include Wisconsin
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Purdue/WisconsinPlan this room →1,090 sq ft101 m²9 ft2.7 m8411057753236
WrigleyvillePlan this room →555 sq ft52 m²7 ft2.1 m303518201616
Additional spaces (dimensions only) (5)
Additional spaces with published dimensions only at Chicago Marriott Downtown Magnificent Mile
SpaceSq ft / m²Ceiling
5th Floor North Office Registration - NorthPlan this room →235 sq ft22 m²8 ft2.4 m
5th Floor South Office Registration - SouthPlan this room →440 sq ft41 m²8 ft2.4 m
7th Floor North Office Registration - NorthPlan this room →236 sq ft22 m²8 ft2.4 m
7th Floor South Office Registration - SouthPlan this room →440 sq ft41 m²8 ft2.4 m
Waveland FoyerPlan this room →2,565 sq ft238 m²9 ft2.7 m

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 Chicago Marriott Downtown Magnificent Mile?

Chicago Marriott Downtown Magnificent Mile has 56 rooms. The largest space is Grand Ballroom, 19,193 sq ft (92 × 208 ft). Every room's dimensions and seating capacity by setup are listed on this page. Chicago Marriott Downtown Magnificent Mile's own floor plans are published on its website, linked from this page.

How many event rooms does Chicago Marriott Downtown Magnificent Mile have?

Chicago Marriott Downtown Magnificent Mile has 56 rooms. 73 configurations are listed on this page.

What is the largest space at Chicago Marriott Downtown Magnificent Mile?

Grand Ballroom, 19,193 sq ft: 92 × 208 ft, 1,824 banquet / 2,200 theater.

How many people can Chicago Marriott Downtown Magnificent Mile seat for a banquet?

Up to 1,824 in Grand Ballroom. The next largest room, Salon II/III, seats 1,344.

What is the ceiling height at Chicago Marriott Downtown Magnificent Mile?

The highest ceiling is 20 ft, in Grand Ballroom.

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