Janet Gray Hayes Rotunda
Janet Gray Hayes Rotunda is an event space in San Jose, California. Open records put its footprint at 6,948 sq ft. Here is what the public record holds on it, and what an event67 rollout would cost in a room this size.
- Recorded footprint
- 6,948 sq ft
- building outline, not exhibit space
- Opened
- 2005
- 21 years old
- From SJC
- 5 km (3.1 mi)
- San Jose International Airport
- From the centre
- 0.8 km (0.5 mi)
- of San Jose
Figures as published in open data, retrieved 3 September 2026. Capacities vary by layout — confirm the one you want with the venue.
The building
It sits in San Jose, right in the centre of San Jose.
Janet Gray Hayes Rotunda was opened in 2005, which puts it at 21 years old.
No seated capacity is published. The recorded footprint is 6,948 sq ft, which is the outline of the building rather than usable exhibition space, so treat it as an upper bound and ask the venue for a room-by-room sheet.
- Official site
- www.sanjoseca.gov/your-government/departments-offices/event-services/facilities-and-fees/rotunda
- Coordinates
- 37.3378, -121.8858
- Classified as
- event space
Access and arrival
San Jose International Airport (SJC) is 5 km (3.1 mi) away — close enough that a delayed speaker can still make an afternoon slot.
A central address is worth more than it looks: no shuttle, no parking plan, and evening sessions that people actually stay for.
San Jose has 65 venues mapped in total and a population of 997,368. The San Jose guide covers the airport, the local time zone and what else is bookable nearby.
The kind of event it takes
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.
The app bill, at this size
A Janet Gray Hayes Rotunda programme at 580 activated attendees — sized from the recorded footprint of Janet Gray Hayes Rotunda at roughly twelve square feet a head — prices like this. Nothing is charged for the first 50, and nothing at all is charged past 1,000.
- activated attendees
- 580activated attendees
- billable, after the first 50 are free
- 530billable, after the first 50 are free
- for the whole event, at $5 each
- $2,650for 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.
Other rooms in San Jose
4 other venues in San Jose have enough published detail for their own guide. Worth a shortlist before you commit.
- San Jose Convention Center15 seats
- Santa Clara County Fairgroundsfairground
- Santa Clara Convention Centerconvention centre
- San Jose Civictheatre
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
- OpenStreetMap contributors, ODbL
- Venue data © OpenStreetMap contributors, available under the Open Database License.
- Geographic data © GeoNames, licensed under CC BY 4.0.
- Retrieved 3 September 2026. 7 distinct facts from the record are rendered on this page: floor area, floor-area sizing, year opened, official website, encyclopaedia entry, nearest airport with distance, photograph on Wikimedia Commons.
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 big is Janet Gray Hayes Rotunda?
The recorded footprint is 6,948 sq ft. That is the outline of the building, not usable exhibition or function space, and no seated capacity is published anywhere in the open record. Treat it as an upper bound and ask the venue for a room-by-room sheet.
What does an event app cost for an event at Janet Gray Hayes Rotunda?
580 activated attendees means 530 billable after the free 50, so $2,650 for the event. That example is sized from the recorded footprint of Janet Gray Hayes Rotunda at roughly twelve square feet a head. 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 Janet Gray Hayes Rotunda?
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 Janet Gray Hayes Rotunda is booked?
San Jose Convention Center (15), Santa Clara County Fairgrounds and Santa Clara Convention Center are in the same city and have their own pages here. 65 venues in total are mapped in San Jose.
Keep reading
Elsewhere in San Jose
- San Jose Convention Center
15 seats
- Santa Clara County Fairgrounds
fairground
- Santa Clara Convention Center
convention centre
- San Jose Civic
theatre
- Hosting an event in San Jose
Up a level
What kind of event is it
Running an event at Janet Gray Hayes Rotunda?
Bring the schedule, the invites and the arrivals into one branded app. Free for your first 50 activated attendees, on one live event.