What is the banquet capacity of Grand Ballroom at The Westin Chicago Northwest?

Grand Ballroom seats up to 800 guests in a banquet layout.

How many people fit in Grand Ballroom theater-style?

Grand Ballroom holds up to 1,100 guests in a theater setup.

How many event spaces does The Westin Chicago Northwest have?

The Westin Chicago Northwest has 23 event spaces totaling 43,817 sq ft.

The Westin Chicago Northwest — Event Spaces & Capacities

400 Park Blvd, Itasca, IL 60143

The Westin Chicago Northwest in Itasca offers 23 event spaces across 43,817 sq ft4,071 m² of function space. The largest room, Grand Ballroom, hosts up to 1,100 guests. Explore the floor plans and capacity charts below, or start arranging your own layout in the free planner.

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Floor plans

Detailed floor plans for The Westin Chicago Northwest are published on the venue’s official site.

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Room capacities & dimensions

Room capacities and dimensions for The Westin Chicago Northwest
Space	Sq ft / m²	Ceiling	Banquet	Theater	Classroom	Reception	Conference	U-Shape
Abricot BallroomPlan this room →	5,300 sq ft492 m²	15 ft4.6 m	280	490	220	280	60	65
AltonPlan this room →	899 sq ft84 m²	9 ft2.7 m	50	90	45	50	30	27
Ballroom IPlan this room →	—	19 ft5.8 m	90	175	75	90	30	36
Ballroom IIPlan this room →	—	19 ft5.8 m	90	175	75	90	30	36
Ballroom IIIPlan this room →	—	19 ft5.8 m	150	300	120	150	50	54
Ballroom IVPlan this room →	—	19 ft5.8 m	150	300	120	150	50	54
BarringtonPlan this room →	1,178 sq ft109 m²	9 ft2.7 m	80	110	50	80	36	32
CarlylePlan this room →	868 sq ft81 m²	9 ft2.7 m	50	90	45	50	30	27
Chambers RoomPlan this room →	—	39 ft11.9 m	60	100	50	100	35	30
EdwardianPlan this room →	713 sq ft66 m²	9 ft2.7 m	40	60	32	40	22	24
Gallery BallroomPlan this room →	4,160 sq ft386 m²	12 ft3.7 m	260	300	150	260	60	50
Grand BallroomPlan this room →	9,600 sq ft892 m²	19 ft5.8 m	800	1,100	630	800	100	130
HamptonPlan this room →	1,064 sq ft99 m²	9 ft2.7 m	50	100	42	50	24	26
Lakeshore BallroomPlan this room →	3,870 sq ft360 m²	9 ft2.7 m	270	300	170	270	70	75
Lakeside PavilionPlan this room →	6,720 sq ft624 m²	51 ft15.5 m	530	800	350	530	70	80
LeightonPlan this room →	896 sq ft83 m²	9 ft2.7 m	50	100	44	50	26	25
MarlboroughPlan this room →	1,792 sq ft166 m²	9 ft2.7 m	100	180	100	100	40	40
PrescottPlan this room →	896 sq ft83 m²	9 ft2.7 m	50	100	44	50	26	25
RadcliffePlan this room →	896 sq ft83 m²	9 ft2.7 m	40	90	40	40	24	24
StanfordPlan this room →	2,128 sq ft198 m²	9 ft2.7 m	110	220	100	110	42	45
The ChambersPlan this room →	784 sq ft73 m²	—	60	100	45	100	36	33
TrafalgarPlan this room →	1,064 sq ft99 m²	9 ft2.7 m	60	110	45	60	36	33
WindsorPlan this room →	989 sq ft92 m²	9 ft2.7 m	60	100	45	60	32	32

Figures from published venue data; blank cells mean the venue hasn’t published that number. Verify final counts with the venue.