The Westin Waltham Boston — Event Spaces, Floor Plans & Capacities
Westin Hotel, 70 3rd Ave, Waltham, MA 02451
22 rooms · largest space: Eden Vale Ballroom, 6,254 sq ft581 m²
The Westin Waltham Boston in Waltham offers 22 event rooms. The largest space is Eden Vale Ballroom, 6,254 sq ft581 m² (divisible into 7 sections). It holds up to 800 guests. Explore the floor plans and capacity charts below, or start arranging your own layout in the free planner.
Plan an event in Eden Vale Ballroom: open a free to-scale layout seating 320 at round tables in its 106 × 59 ft footprint at floors.live/start — no account needed.
Across its 22 rooms, The Westin Waltham Boston handles theater-style sessions for up to 700, seated banquets for 540 and standing receptions for 800. 11 smaller rooms suit breakouts and board meetings. Exact figures for every room and setup style are in the chart below.
Unverified listing — compiled from The Westin Waltham Boston’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/massachusetts/waltham/the-westin-waltham-boston/?claim=1.
Floor plans
Detailed floor plans for The Westin Waltham Boston are published on the venue’s official site.
Work at The Westin Waltham Boston? to publish your official floor plans and 360° tours here — free.
Room capacities & dimensions
22 rooms, 25 configurations. Combined and divided set-ups are listed under their room.
| Space | Sq ft / m² | Ceiling | Banquet | Theater | Classroom | Reception | Conference | U-Shape | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AlcottPlan this room → | 768 sq ft71 m² | 8 ft2.4 m | 50 | 50 | 40 | 60 | 30 | 26 | |||||||||||||||||||||||||||
| BelmontPlan this room → | 425 sq ft39 m² | 13.4 ft4.1 m | 30 | 25 | 21 | 20 | 18 | 18 | |||||||||||||||||||||||||||
| CambridgePlan this room → | 800 sq ft74 m² | 13.4 ft4.1 m | 50 | 70 | 42 | 60 | 30 | 33 | |||||||||||||||||||||||||||
| Concord BallroomPlan this room → | 2,750 sq ft255 m² | 13.4 ft4.1 m | 200 | 250 | 175 | 200 | 40 | 45 | |||||||||||||||||||||||||||
| Eden Vale APlan this room → | 1,829 sq ft170 m² | 15.4 ft4.7 m | 160 | 180 | 100 | 250 | 30 | — | |||||||||||||||||||||||||||
2 configurations with Eden Vale A
| |||||||||||||||||||||||||||||||||||
| Eden Vale A1Plan this room → | 1,829 sq ft170 m² | 15.4 ft4.7 m | 160 | 180 | 100 | 250 | — | 50 | |||||||||||||||||||||||||||
| Eden Vale A3Plan this room → | 589 sq ft55 m² | 15.4 ft4.7 m | 40 | 60 | 36 | 70 | 30 | 28 | |||||||||||||||||||||||||||
| Eden Vale BPlan this room → | 2,537 sq ft236 m² | 15.4 ft4.7 m | 240 | 240 | 150 | 350 | — | — | |||||||||||||||||||||||||||
| Eden Vale C1Plan this room → | 589 sq ft55 m² | 15.4 ft4.7 m | 40 | 60 | 36 | 70 | 30 | 28 | |||||||||||||||||||||||||||
| Eden Vale C2Plan this room → | 589 sq ft55 m² | 15.4 ft4.7 m | 40 | 60 | 24 | 70 | 30 | 24 | |||||||||||||||||||||||||||
| Eden Vale C3Plan this room → | 589 sq ft55 m² | 15.4 ft4.7 m | 40 | 60 | 36 | 70 | 30 | 28 | |||||||||||||||||||||||||||
| EmersonPlan this room → | 2,500 sq ft232 m² | 13.4 ft4.1 m | 120 | 200 | 75 | 140 | 30 | 21 | |||||||||||||||||||||||||||
| GarfieldPlan this room → | 414 sq ft38 m² | 8 ft2.4 m | — | — | — | — | 10 | — | |||||||||||||||||||||||||||
| HawthornePlan this room → | 368 sq ft34 m² | 8 ft2.4 m | 20 | 24 | 18 | 20 | 16 | 15 | |||||||||||||||||||||||||||
| Lincoln EastPlan this room → | 400 sq ft37 m² | 13.4 ft4.1 m | 30 | 35 | 21 | 40 | 22 | 20 | |||||||||||||||||||||||||||
1 configuration with Lincoln East
| |||||||||||||||||||||||||||||||||||
| Lincoln WestPlan this room → | 400 sq ft37 m² | 13.4 ft4.1 m | 30 | 35 | 21 | 40 | 22 | 20 | |||||||||||||||||||||||||||
| LivermorePlan this room → | 462 sq ft43 m² | 8 ft2.4 m | 40 | 30 | 18 | 25 | 24 | 15 | |||||||||||||||||||||||||||
| ThoreauPlan this room → | 441 sq ft41 m² | 8 ft2.4 m | 30 | 26 | 18 | 20 | 16 | 14 | |||||||||||||||||||||||||||
| Waltham BoardroomPlan this room → | 595 sq ft55 m² | 8 ft2.4 m | — | — | — | — | 16 | — | |||||||||||||||||||||||||||
| WellesleyPlan this room → | 464 sq ft43 m² | 13.4 ft4.1 m | 30 | 24 | 21 | 20 | 20 | 20 | |||||||||||||||||||||||||||
| WellingtonPlan this room → | 391 sq ft36 m² | 8 ft2.4 m | 30 | 30 | 18 | 25 | 18 | 15 | |||||||||||||||||||||||||||
| Weston BoardroomPlan this room → | 304 sq ft28 m² | 13.4 ft4.1 m | — | — | — | — | 10 | — | |||||||||||||||||||||||||||
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 The Westin Waltham Boston?
The Westin Waltham Boston has 22 rooms. The largest space is Eden Vale Ballroom, 6,254 sq ft (106 × 59 ft). Every room's dimensions and seating capacity by setup are listed on this page. The Westin Waltham Boston's own floor plans are published on its website, linked from this page.
How many event rooms does The Westin Waltham Boston have?
The Westin Waltham Boston has 22 rooms. 25 configurations are listed on this page.
What is the largest space at The Westin Waltham Boston?
Eden Vale Ballroom, 6,254 sq ft (divisible into 7 sections): 106 × 59 ft, 540 banquet / 700 theater.
How many people can The Westin Waltham Boston seat for a banquet?
Up to 540 in Eden Vale Ballroom. The next largest room, Concord Ballroom, seats 200.
Can Eden Vale Ballroom be divided?
Yes. Eden Vale Ballroom divides into 7 sections: Eden Vale A, Eden Vale A1, Eden Vale A3, Eden Vale B, Eden Vale C1, Eden Vale C2, Eden Vale C3.
What is the ceiling height at The Westin Waltham Boston?
The highest ceiling is 15.4 ft, in Eden Vale A.
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