Sonia
Everything the open record has on Sonia, an event space in Boston, Massachusetts — address, size, access and the events it carries. It seats a stated 350.
- Stated capacity
- 350
- people, as published
- Opened
- 2017
- 9 years old
- From BOS
- 8 km (5 mi)
- Logan International Airport
- From the centre
- 3.5 km (2.2 mi)
- of Boston
Figures as published in open data, retrieved 3 September 2026. Capacities vary by layout — confirm the one you want with the venue.
What Sonia is
It stands at 10 Brookline St, 3.5 km (2.2 mi) from the centre of Boston.
Sonia was opened in 2017, which puts it at 9 years old.
350 is the kind of number that suits training, a chapter meeting or one track of a larger programme.
- Address
- 10 Brookline St, Cambridge MA 02139
- Official site
- www.mideastoffers.com/sonia
- Coordinates
- 42.3636, -71.1016
- Classified as
- event space
Getting there
8 km (5 mi) to Logan International Airport (BOS). At that distance the transfer is not a planning problem, which is rarer than it sounds.
3.5 km (2.2 mi) out from the middle of Boston — close enough to book a downtown hotel block, far enough that people will expect transport laid on after dark.
Boston has 182 venues mapped in total and a population of 673,458. The Boston guide covers the airport, the local time zone and what else is bookable nearby.
Formats this suits
This is a room for a workshop, a chapter meeting, a training day or one track of a larger programme. Anything with an exhibition attached needs a second space.
- networking mixers
An independent space with its own character, which a mixer benefits from more than a conference does.
- fundraisers and galas
A room with a personality is worth more at a gala than square footage is.
- community meetings
Room for 350 covers most community and member meetings.
Pricing a full house here
Suppose 350 attendees claim their invite and open the app at a Sonia event sized to the stated capacity of Sonia. Here is exactly what event67 charges, with the free 50 taken off the top.
- activated attendees
- 350activated attendees
- billable, after the first 50 are free
- 300billable, after the first 50 are free
- for the whole event, at $5 each
- $1,500for the whole event, at $5 each
You are billed for people, not for the room, so this figure does not change if you move the event down the road. event67 has no floor-plan or booking product — the venue handles the space, the app handles the people in it.
Nearby alternatives
4 other venues in Boston have enough published detail for their own guide. Worth a shortlist before you commit.
- The Sinclair525 seats
- Crystal Ballroom516 seats
- Brighton Music Hall340 seats
- Deep Cuts240 seats
Where these numbers come from
event67 is not affiliated with, endorsed by or connected to this venue or its operator. This page is compiled from open data and links to the venue’s own website where one is published.
- Wikidata, CC0
- Venue data © OpenStreetMap contributors, available under the Open Database License.
- Geographic data © GeoNames, licensed under CC BY 4.0.
- Retrieved 3 September 2026. 6 distinct facts from the record are rendered on this page: street address, stated capacity, capacity sizing, year opened, official website, nearest airport with distance.
Last updated
What it costs
- Free up to 50
- activated attendees, on one live event
- $5
- per activated attendee beyond 50
- $4,750
- the most one event can ever cost, whatever happens past 1,000
Activated means the person claimed their invite and opened the app. Not when you import them, not when the invite is delivered, and not if they register and stay home.
Questions people actually ask
How many people does Sonia hold?
Open data records a stated capacity of 350 for Sonia. That figure is what the venue or an encyclopaedia entry published, and it is usually the maximum seated number — theatre, banquet and reception layouts in the same room can differ by half. Confirm the layout you want directly with the venue.
Where is Sonia?
10 Brookline St, Cambridge MA 02139. It is 3.5 km (2.2 mi) from the centre of Boston. The nearest major airport is Logan International Airport (BOS), about 8 km (5 mi) away.
What does an event app cost for an event at Sonia?
350 activated attendees means 300 billable after the free 50, so $1,500 for the event. That example is sized to the stated capacity of Sonia. The rate is $5 per activated attendee beyond the first 50, and the total for one event stops at $4,750 however many more attend. Activated means the person claimed their invite and opened the app. Not when you import them, not when the invite is delivered, and not if they register and stay home.
Is event67 affiliated with Sonia?
No. event67 is not affiliated with, endorsed by or connected to this venue or its operator. This page is compiled from open data — OpenStreetMap, Wikidata and public census sources — and links to the venue’s own website where one is published.
What else is nearby if Sonia is booked?
The Sinclair (525), Crystal Ballroom (516) and Brighton Music Hall (340) are in the same city and have their own pages here. 182 venues in total are mapped in Boston.
Keep reading
Elsewhere in Boston
- The Sinclair
525 seats
- Crystal Ballroom
516 seats
- Brighton Music Hall
340 seats
- Deep Cuts
240 seats
- Hosting an event in Boston
Up a level
What kind of event is it
Running an event at Sonia?
Bring the schedule, the invites and the arrivals into one branded app. Free for your first 50 activated attendees, on one live event.