The Westin Boston Seaport District — Event Spaces & Capacities

425 Summer St, Boston, MA 02210

With 59 event spaces across 189,341 sq ft17,590 m² of function space, The Westin Boston Seaport District is a flexible choice for meetings and celebrations in Boston. The largest room, Galleria Exhibit Hall, hosts up to 2,000 guests. Full capacity details for each room are below.

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Floor plans

Detailed floor plans for The Westin Boston Seaport District are published on the venue’s official site.

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Room capacities & dimensions

Room capacities and dimensions for The Westin Boston Seaport District
SpaceCeiling
AdamsPlan this room →833 sq ft77 m²11.5 ft3.5 m509048802630
AlcottPlan this room →1,035 sq ft96 m²11.5 ft3.5 m60100631052630
BulfinchPlan this room →508 sq ft47 m²11.5 ft3.5 m204024401418
BurroughsPlan this room →1,492 sq ft139 m²11.5 ft3.5 m120160841603439
CarltonPlan this room →1,181 sq ft110 m²11.5 ft3.5 m80120601303436
Commonwealth Balllroom APlan this room →1,212 sq ft113 m²14 ft4.3 m80120631283236
Commonwealth Balllroom BPlan this room →1,267 sq ft118 m²14 ft4.3 m80120631283236
Commonwealth BallroomPlan this room →3,956 sq ft368 m²14 ft4.3 m260390240390—81
Commonwealth Ballroom A & BPlan this room →2,478 sq ft230 m²14 ft4.3 m200250120260—50
Commonwealth Ballroom B & CPlan this room →2,744 sq ft255 m²14 ft4.3 m200280120200—44
Commonwealth Ballroom CPlan this room →1,477 sq ft137 m²14 ft4.3 m110150841103242
DouglassPlan this room →1,254 sq ft117 m²12 ft3.7 m80120781203842
Executive Board RoomPlan this room →722 sq ft67 m²12 ft3.7 m————18—
FaneuilPlan this room →1,298 sq ft121 m²11.5 ft3.5 m80120781203842
FrostPlan this room →265 sq ft25 m²8.5 ft2.6 m————10—
Galleria Exhibit HallPlan this room →19,160 sq ft1,780 m²14.5 ft4.4 m1,050——2,000——
Grand BallroomPlan this room →15,077 sq ft1,401 m²24 ft7.3 m1,0801,5008601,500——
Grand Ballroom A & BPlan this room →10,110 sq ft939 m²24 ft7.3 m7201,1005701,000——
Grand Ballroom B-EPlan this room →10,030 sq ft932 m²24 ft7.3 m7201,1005701,000——
Grand Ballroom C & DPlan this room →3,266 sq ft303 m²24 ft7.3 m240340168330——
Grand Ballroom C-EPlan this room →4,967 sq ft461 m²25 ft7.6 m320460270500——
Grand Ballroom D & EPlan this room →3,331 sq ft309 m²24 ft7.3 m240360168330——
Grand Ballroom FoyerPlan this room →6,444 sq ft599 m²24 ft7.3 m———695——
Grand Ballroom Section APlan this room →5,047 sq ft469 m²24 ft7.3 m320552270540——
Grand Ballroom Section BPlan this room →5,064 sq ft470 m²24 ft7.3 m320552270540——
Grand Ballroom Section CPlan this room →1,636 sq ft152 m²24 ft7.3 m120150841653645
Grand Ballroom Section DPlan this room →1,630 sq ft151 m²24 ft7.3 m120150841653645
Grand Ballroom Section EPlan this room →1,701 sq ft158 m²24 ft7.3 m120180841653545
GriffinPlan this room →679 sq ft63 m²11.5 ft3.5 m407033601818
HalePlan this room →564 sq ft52 m²11.5 ft3.5 m304024401424
HancockPlan this room →854 sq ft79 m²14 ft4.3 m507045802024
Harbor Balllroom 3Plan this room →2,444 sq ft227 m²19 ft5.8 m200260160270—50
Harbor BallroomPlan this room →7,987 sq ft742 m²19 ft5.8 m680860390850——
Harbor Ballroom 1Plan this room →3,318 sq ft308 m²19 ft5.8 m290360160360—66
Harbor Ballroom 1 & 2Plan this room →5,543 sq ft515 m²19 ft5.8 m490580290615——
Harbor Ballroom 2Plan this room →2,226 sq ft207 m²19 ft5.8 m200240130240—48
Harbor Ballroom 2 & 3Plan this room →4,666 sq ft433 m²19 ft5.8 m200500280270—50
Harbor Ballroom FoyerPlan this room →5,487 sq ft510 m²11.5 ft3.5 m———500——
Independence BoardroomPlan this room →522 sq ft48 m²11.5 ft3.5 m————16—
LewisPlan this room →1,349 sq ft125 m²11.5 ft3.5 m90140721302833
Marina BallroomPlan this room →6,170 sq ft573 m²13.5 ft4.1 m420—378650——
Marina Ballroom 1Plan this room →2,031 sq ft189 m²13.5 ft4.1 m1201921282353848
Marina Ballroom 1 & 2Plan this room →3,483 sq ft324 m²13.5 ft4.1 m2303242134006054
Marina Ballroom 1-3Plan this room →4,888 sq ft454 m²13.5 ft4.1 m3484563065608481
Marina Ballroom 2Plan this room →1,452 sq ft135 m²13.5 ft4.1 m110132931703239
Marina Ballroom 2 & 3Plan this room →2,859 sq ft266 m²13.5 ft4.1 m2202641863154848
Marina Ballroom 2-4Plan this room →4,143 sq ft385 m²13.5 ft4.1 m3003962584507272
Marina Ballroom 3Plan this room →1,407 sq ft131 m²13.5 ft4.1 m11092931683239
Marina Ballroom 3 & 4Plan this room →2,564 sq ft238 m²13.5 ft4.1 m1902641502824439
Marina Ballroom 4Plan this room →1,284 sq ft119 m²13.5 ft4.1 m80132721303239
OtisPlan this room →1,377 sq ft128 m²14 ft4.3 m90140721303842
PainePlan this room →737 sq ft68 m²14 ft4.3 m406030601418
PavilionPlan this room →4,846 sq ft450 m²24 ft7.3 m320500342600——
QuincyPlan this room →601 sq ft56 m²14 ft4.3 m305024501418
ReverePlan this room →757 sq ft70 m²14 ft4.3 m406030601418
SaucietyPlan this room →2,898 sq ft269 m²13 ft4 m———300——
StonePlan this room →1,416 sq ft132 m²12.5 ft3.8 m90140721403842
WebsterPlan this room →1,424 sq ft132 m²14 ft4.3 m90140721403842
Additional spaces (dimensions only) (1)
Additional spaces with published dimensions only at The Westin Boston Seaport District
SpaceSq ft / m²Ceiling
ElmPlan this room →180 sq ft17 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.