Indianapolis Marriott Downtown — Event Spaces, Floor Plans & Capacities

350 W Maryland St, Indianapolis, IN 46225

37 rooms · largest space: Marriott Ballroom, 21,008 sq ft1,952 m²

Planning an event in Indianapolis? Indianapolis Marriott Downtown has 37 meeting and event rooms. The largest space is Marriott Ballroom, 21,008 sq ft1,952 m² (divisible into 10 sections). It holds up to 2,500 guests. Capacity figures for every setup style are listed per room below.

Plan an event in Marriott Ballroom: open a free to-scale layout seating 1,280 at round tables in its 202 × 104 ft footprint at floors.live/start — no account needed.

Between them, the 37 rooms accommodate theater-style sessions for up to 2,500, seated banquets for 1,500 and standing receptions for 2,500. 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 Indianapolis Marriott Downtown’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/indiana/indianapolis/indianapolis-marriott-downtown/?claim=1.

Floor plans

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

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

Work at Indianapolis Marriott Downtown? to publish your official floor plans and 360° tours here — free.

Room capacities & dimensions

37 rooms, 40 configurations. Combined and divided set-ups are listed under their room.

Room capacities and dimensions for Indianapolis Marriott Downtown
SpaceCeiling
Indiana APlan this room →620 sq ft58 m²14 ft4.3 m405025502422
1 configuration with Indiana A
Combined and divided set-ups that include Indiana A
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Indiana BallroomPlan this room →8,320 sq ft773 m²14 ft4.3 m630800400800——
Indiana BPlan this room →620 sq ft58 m²14 ft4.3 m405025502422
Indiana CPlan this room →620 sq ft58 m²14 ft4.3 m405025502422
Indiana DPlan this room →620 sq ft58 m²14 ft4.3 m405025502422
Indiana EPlan this room →3,280 sq ft305 m²14 ft4.3 m280400200350—50
Indiana FPlan this room →1,209 sq ft112 m²14 ft4.3 m80110551003434
Indiana GPlan this room →1,209 sq ft112 m²14 ft4.3 m80110551003434
ColoradoPlan this room →625 sq ft58 m²12 ft3.7 m405024502420
FloridaPlan this room →644 sq ft60 m²12 ft3.7 m406026602420
IllinoisPlan this room →621 sq ft58 m²12 ft3.7 m406026602420
MichiganPlan this room →621 sq ft58 m²12 ft3.7 m406026602420
TexasPlan this room →621 sq ft58 m²12 ft3.7 m406026602424
UtahPlan this room →621 sq ft58 m²12 ft3.7 m304020402016
Marriott 1Plan this room →1,196 sq ft111 m²17 ft5.2 m80110601003634
2 configurations with Marriott 1
Combined and divided set-ups that include Marriott 1
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Marriott BallroomPlan this room →21,008 sq ft1,952 m²22 ft6.7 m1,5002,5001,2202,500——
Marriott 5 & 6 (combined)Plan this room →11,440 sq ft1,063 m²22 ft6.7 m9001,4006501,200——
Marriott 2Plan this room →1,196 sq ft111 m²17 ft5.2 m80110601003634
Marriott 3Plan this room →1,196 sq ft111 m²17 ft5.2 m80110601003634
Marriott 4Plan this room →1,196 sq ft111 m²17 ft5.2 m80110601003634
Marriott 5Plan this room →5,720 sq ft531 m²22 ft6.7 m450700375600——
Marriott 6Plan this room →5,720 sq ft531 m²22 ft6.7 m450700375600——
Marriott 7Plan this room →1,196 sq ft111 m²17 ft5.2 m80120701004034
Marriott 8Plan this room →1,196 sq ft111 m²17 ft5.2 m80120701004034
Marriott 9Plan this room →1,196 sq ft111 m²17 ft5.2 m80120701004034
Marriott 10Plan this room →1,196 sq ft111 m²17 ft5.2 m80120701004034
AtlantaPlan this room →464 sq ft43 m²12 ft3.7 m304021302016
AustinPlan this room →336 sq ft31 m²12 ft3.7 m202818201414
BostonPlan this room →336 sq ft31 m²12 ft3.7 m202818201414
ColumbusPlan this room →464 sq ft43 m²12 ft3.7 m304021302016
DenverPlan this room →675 sq ft63 m²12 ft3.7 m506028602624
LincolnPlan this room →1,232 sq ft114 m²12 ft3.7 m80100601204034
PhoenixPlan this room →288 sq ft27 m²12 ft3.7 m121212201414
Santa FePlan this room →1,232 sq ft114 m²12 ft3.7 m80100601204034
Albany RoomPlan this room →224 sq ft21 m²12 ft3.7 m1014122010—
Indianapolis BoardroomPlan this room →435 sq ft40 m²—————12—
KentuckyPlan this room →1,176 sq ft109 m²13 ft4 m70120701304034
ArizonaPlan this room →504 sq ft47 m²13 ft4 m204024502016
CaliforniaPlan this room →900 sq ft84 m²13 ft4 m5080501002824
TennesseePlan this room →1,200 sq ft111 m²13 ft4 m70120701304034

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 Indianapolis.

Frequently asked questions

What is the floor plan of Indianapolis Marriott Downtown?

Indianapolis Marriott Downtown has 37 rooms. The largest space is Marriott Ballroom, 21,008 sq ft (202 × 104 ft). Every room's dimensions and seating capacity by setup are listed on this page. Indianapolis Marriott Downtown's own floor plans are published on its website, linked from this page.

How many event rooms does Indianapolis Marriott Downtown have?

Indianapolis Marriott Downtown has 37 rooms. 40 configurations are listed on this page.

What is the largest space at Indianapolis Marriott Downtown?

Marriott Ballroom, 21,008 sq ft (divisible into 10 sections): 202 × 104 ft, 1,500 banquet / 2,500 theater.

How many people can Indianapolis Marriott Downtown seat for a banquet?

Up to 1,500 in Marriott Ballroom. The next largest room, Indiana Ballroom, seats 630.

Can Marriott Ballroom be divided?

Yes. Marriott Ballroom divides into 10 sections: Marriott 1, Marriott 2, Marriott 3, Marriott 4, Marriott 5, Marriott 6, Marriott 7, Marriott 8, Marriott 9, Marriott 10.

What is the ceiling height at Indianapolis Marriott Downtown?

The highest ceiling is 22 ft, in Marriott 5.

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