Hyatt Regency Boston Harbor — Event Spaces, Floor Plans & Capacities

101 Harborside Dr, Boston, MA 02128

15 rooms · largest space: Harborside Pavilion|, 5,000 sq ft465 m²

Hyatt Regency Boston Harbor in Boston offers 15 event rooms. The largest space is Harborside Pavilion|, 5,000 sq ft465 m². It holds up to 400 guests. Explore the floor plans and capacity charts below, or start arranging your own layout in the free planner.

Plan an event in Grand Ballroom: open a free to-scale layout seating 160 at round tables in its 50 × 100 ft footprint at floors.live/start — no account needed.

Across its 15 rooms, Hyatt Regency Boston Harbor handles theater-style sessions for up to 400 and seated banquets for 400. 5 smaller rooms suit breakouts and board meetings. Exact figures for every room and setup style are in the chart below.

Plan your event in this space — free

Unverified listing — compiled from Hyatt Regency Boston Harbor’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/massachusetts/boston/hyatt-regency-boston-harbor/?claim=1.

Floor plans

Detailed floor plans for Hyatt Regency Boston Harbor are published on the venue’s official site.

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

Work at Hyatt Regency Boston Harbor? to publish your official floor plans and 360° tours here — free.

Room capacities & dimensions

15 rooms

Room capacities and dimensions for Hyatt Regency Boston Harbor
Space	Sq ft / m²	Ceiling	Banquet	Theater	Classroom	Conference	U-Shape
AquitaniaPlan this room →	—	10 ft3 m	130	120	70	45	36
BritannicPlan this room →	1,125 sq ft105 m²	10 ft3 m	120	110	60	42	30
ChesapeakePlan this room →	—	8 ft2.4 m	60	40	24	20	15
CongressPlan this room →	—	8 ft2.4 m	40	40	24	20	20
ConstellationPlan this room →	—	8 ft2.4 m	40	40	24	20	20
ConstitutionPlan this room →	—	8 ft2.4 m	40	40	24	20	20
Grand BallroomPlan this room →	—	16 ft4.9 m	160	400	225	—	—
Harborside BallroomPlan this room →	2,592 sq ft241 m²	10 ft3 m	180	165	80	48	42
Harborside Pavilion\|Plan this room →	5,000 sq ft465 m²	12 ft3.7 m	400	165	80	48	42
MichelangeloPlan this room →	—	10 ft3 m	130	110	81	40	42
OlympiaPlan this room →	—	10 ft3 m	130	120	70	45	36
Queen MaryPlan this room →	—	10 ft3 m	80	75	54	30	24
RaffaelloPlan this room →	—	10 ft3 m	45	40	30	20	18
Skyline BallroomPlan this room →	—	10 ft3 m	180	200	110	48	40
The BoardroomPlan this room →	—	12 ft3.7 m	—	—	—	14	—

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 Hyatt Regency Boston Harbor?

Hyatt Regency Boston Harbor has 15 rooms. The largest space is Harborside Pavilion|, 5,000 sq ft (100 × 50 ft). Every room's dimensions and seating capacity by setup are listed on this page. For the venue's own drawings, see its official website, linked from this page.

How many event rooms does Hyatt Regency Boston Harbor have?

Hyatt Regency Boston Harbor has 15 rooms.

What is the largest space at Hyatt Regency Boston Harbor?

Harborside Pavilion|, 5,000 sq ft: 100 × 50 ft, 400 banquet / 165 theater.

How many people can Hyatt Regency Boston Harbor seat for a banquet?

Up to 400 in Harborside Pavilion|. The next largest room, Harborside Ballroom, seats 180.

What is the ceiling height at Hyatt Regency Boston Harbor?

The highest ceiling is 16 ft, in Grand Ballroom.

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