Boston Marriott Newton — Event Spaces, Floor Plans & Capacities

2345 Commonwealth Ave, Auburndale, MA 02466

20 rooms · largest space: Grand Ballroom, 9,324 sq ft866 m²

With 20 event rooms, Boston Marriott Newton is a flexible choice for meetings and celebrations in Auburndale. The largest space is Grand Ballroom, 9,324 sq ft866 m². It holds up to 1,200 guests. Full capacity details for each room are below.

Plan an event in Grand Ballroom: open a free to-scale layout seating 570 at round tables in its 126 × 74 ft footprint at floors.live/start — no account needed.

Between them, the 20 rooms accommodate theater-style sessions for up to 790, seated banquets for 570 and standing receptions for 1,200. 4 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 Boston Marriott Newton’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/massachusetts/auburndale/boston-marriott-newton/?claim=1.

Floor plans

Detailed floor plans for Boston Marriott Newton are published on the venue’s official site.

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Room capacities & dimensions

20 rooms, 31 configurations. Combined and divided set-ups are listed under their room.

Room capacities and dimensions for Boston Marriott Newton
SpaceSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Cape CodPlan this room →216 sq ft20 m²8 ft2.4 m————6—
Charles River RoomPlan this room →2,444 sq ft227 m²11 ft3.4 m150210841753230
Charles River Room - East or WestPlan this room →1,222 sq ft114 m²11 ft3.4 m6011060753230
Commonwealth BallroomPlan this room →5,782 sq ft537 m²13 ft4 m350——400——
Commonwealth Ballroom - Salon 1Plan this room →1,534 sq ft143 m²13 ft4 m508045402727
5 configurations with Commonwealth Ballroom - Salon 1
Combined and divided set-ups that include Commonwealth Ballroom - Salon 1
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Commonwealth Ballroom - Salons 1 & 2Plan this room →3,009 sq ft280 m²13 ft4 m160——100——
Commonwealth Ballroom - Salons 1-3Plan this room →4,307 sq ft400 m²13 ft4 m250——250——
Commonwealth Ballroom - Salons 2 & 3Plan this room →2,773 sq ft258 m²13 ft4 m140220114150——
Commonwealth Ballroom - Salons 2-4Plan this room →4,248 sq ft395 m²13 ft4 m200300132250——
Commonwealth Ballroom - Salons 3 & 4Plan this room →2,773 sq ft258 m²13 ft4 m13016084180——
Commonwealth Ballroom - Salon 2Plan this room →1,475 sq ft137 m²13 ft4 m70125501003232
Commonwealth Ballroom - Salon 3Plan this room →1,298 sq ft121 m²13 ft4 m70120501003232
Commonwealth Ballroom - Salon 4Plan this room →1,250 sq ft116 m²13 ft4 m509054802630
Grand BallroomPlan this room →9,324 sq ft866 m²18 ft5.5 m5707903901,200——
1 configuration with Grand Ballroom
Combined and divided set-ups that include Grand Ballroom
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Grand Ballroom - Salons D & EPlan this room →4,588 sq ft426 m²18 ft5.5 m300450225460——
Grand Ballroom - Salon A, C, F, or HPlan this room →704 sq ft65 m²12 ft3.7 m405428402021
5 configurations with Grand Ballroom - Salon A, C, F, or H
Combined and divided set-ups that include Grand Ballroom - Salon A, C, F, or H
ConfigurationSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
Grand Ballroom - Salons A & B or B & CPlan this room →1,664 sq ft155 m²12 ft3.7 m90140701003232
Grand Ballroom - Salons A-C or F-HPlan this room →2,368 sq ft220 m²12 ft3.7 m1502101052005054
Grand Ballroom - Salons A-D or E-HPlan this room →4,662 sq ft433 m²12 ft3.7 m300450215600——
Grand Ballroom - Salons A-E or D-HPlan this room →6,956 sq ft646 m²12 ft3.7 m450650320900——
Grand Ballroom - Salons F & G or G & HPlan this room →1,664 sq ft155 m²12 ft3.7 m90140701003232
Grand Ballroom - Salon B or GPlan this room →960 sq ft89 m²12 ft3.7 m609048502024
Grand Ballroom - Salon D or EPlan this room →2,294 sq ft213 m²18 ft5.5 m1502251052005050
LexingtonPlan this room →1,728 sq ft161 m²8 ft2.4 m6012560503236
Merry-Go-RoundPlan this room →352 sq ft33 m²8 ft2.4 m————12—
MinutemanPlan this room →432 sq ft40 m²8 ft2.4 m203212201415
NorumbegaPlan this room →352 sq ft33 m²8 ft2.4 m—2412—1212
Old Meeting HousePlan this room →960 sq ft89 m²8 ft2.4 m407030302024
PavilionPlan this room →2,500 sq ft232 m²—200——250——
Riverside LawnPlan this room →10,000 sq ft929 m²—200——250——
Additional spaces (dimensions only) (1)
Additional spaces with published dimensions only at Boston Marriott Newton
SpaceSq ft / m²Ceiling
Newton Room - 3rd FloorPlan this room →432 sq ft40 m²8 ft2.4 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.

Frequently asked questions

What is the floor plan of Boston Marriott Newton?

Boston Marriott Newton has 20 rooms. The largest space is Grand Ballroom, 9,324 sq ft (126 × 74 ft). Every room's dimensions and seating capacity by setup are listed on this page. Boston Marriott Newton's own floor plans are published on its website, linked from this page.

How many event rooms does Boston Marriott Newton have?

Boston Marriott Newton has 20 rooms. 31 configurations are listed on this page.

What is the largest space at Boston Marriott Newton?

Grand Ballroom, 9,324 sq ft: 126 × 74 ft, 570 banquet / 790 theater.

How many people can Boston Marriott Newton seat for a banquet?

Up to 570 in Grand Ballroom. The next largest room, Grand Ballroom - Salons A-E or D-H, seats 450.

What is the ceiling height at Boston Marriott Newton?

The highest ceiling is 18 ft, in Grand Ballroom.

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