Marriott Riverside at the Convention Center, at 3400 Market Street in downtown Riverside, has nine event rooms led by the 3,540 sq ft Grand Ballroom, next to the Riverside Convention Center. Above the Line provides audio, video, lighting and LED for meetings, banquets and weddings across the hotel.
In the heart of downtown Riverside, the hotel pairs the Grand Ballroom and Regency Ballroom with breakout rooms, courtyards and a poolside patio. We size sound, video and lighting to each room from the hotel's own chart.
Room names, sizes and capacities come from the hotel's Events page at marriott.com. Photos are the hotel's own. Production notes describe a typical Above the Line setup for each space.
The hotel's largest room, for receptions of up to 500 and theater seating for 400.
Reception 500 · Theater 400 · Banquet 270 · Schoolroom 190
For a 270-guest banquet in the Grand Ballroom, we set the stage on the 60 ft wall with a screen on each side, and run the program from a rear-of-house mix position.
The two halves of the Grand Ballroom, for sessions of up to 156 theater style.
Each: Reception 250 · Theater 156 · Schoolroom 100 · Banquet 100
When the ballroom splits into Salons A and B, we give each side its own projector, screen and speakers, and check the airwall for sound bleed.
A windowed ballroom for receptions of up to 190 and dinners of up to 90.
Reception 190 · Theater 100 · Banquet 90 · Schoolroom 60
For a dinner in the Regency Ballroom, we keep the audio to a speaker pair and a wireless mic, and add warm uplighting for the evening.
A long meeting room for up to 125 theater style.
Theater 125 · Reception 175 · Banquet 80 · Schoolroom 65
For a 125-seat session in Orangecrest, we place the screen on the long wall so every row stays close, with a lectern mic and two speakers.
Breakout rooms for meetings of up to 49.
Imperial: Theater 49 · Embassy: Theater 45 · University: Theater 35
For breakouts in Embassy, Imperial and University, we set a display or projector and a speakerphone in each room for hybrid sessions.
A boardroom for meetings of up to 10.
Conference 10
For a board meeting in the Executive Boardroom, we add a conference camera bar to the wall display, so remote attendees can see the table.
Outdoor spaces for receptions of up to 200.
Poolside Patio: Reception 200 · Banquet 100 · Grand Ballroom Courtyard: Reception 160
For a reception on the Poolside Patio, we use a compact speaker system with a wireless mic, and add festoon and uplighting after dark.
All figures come from the capacity chart on the hotel's Events page.
| Room | Dimensions (ft) | Ceiling | Sq ft | Theater | Schoolroom | Conference | U-shape | Reception | Banquet |
|---|---|---|---|---|---|---|---|---|---|
| Grand Ballroom | |||||||||
| Grand Ballroom | 59 x 60 | 12' | 3,540 | 400 | 190 | 120 | 110 | 500 | 270 |
| Salon A | 59 x 30 | 12' | 1,770 | 156 | 100 | 50 | 55 | 250 | 100 |
| Salon B | 59 x 30 | 12' | 1,770 | 156 | 100 | 50 | 55 | 250 | 100 |
| Regency Ballroom | |||||||||
| Regency Ballroom | 28 x 47 | 10' | 1,316 | 100 | 60 | 35 | 40 | 190 | 90 |
| Meeting rooms | |||||||||
| Orangecrest | 51 x 26 | 10' | 1,326 | 125 | 65 | 50 | 40 | 175 | 80 |
| Embassy | 20 x 29 | 10' | 580 | 45 | 34 | 30 | 30 | 49 | 40 |
| Imperial | 20 x 28 | 10' | 560 | 49 | 34 | 28 | 20 | 49 | 40 |
| University | 20 x 20 | 10' | 400 | 35 | 20 | 15 | 12 | 40 | 30 |
| Executive Boardroom | 28 x 12 | 10' | 336 | 10 | 10 | ||||
| Foyers and outdoor | |||||||||
| Grand Ballroom Foyer | 58 x 22 | 10' | 1,276 | 250 | |||||
| Regency Ballroom Foyer | 32 x 13 | 10' | 416 | 85 | |||||
| Grand Ballroom Courtyard | 36 x 32 | 12' | 1,152 | 160 | 70 | ||||
| Poolside Patio | 58 x 24 | 12' | 1,392 | 200 | 100 | ||||
| Ballroom Courtyard | 1,152 | 160 | 80 | ||||||
Sources: Events at marriott.com. Retrieved October 25, 2026. A blank cell means the figure is not published.
The Events page summary lists 11,598 sq ft of total event space; its text describes 14,000 sq ft of meeting space. The chart lists both the Grand Ballroom Courtyard and the Ballroom Courtyard at 1,152 sq ft; both are shown as published.
Not an official Marriott website. Confirm every capacity with the hotel before contracting.
Wireless and podium mics with a PA tuned for the Poolside Patio.
Projection and bright LED displays sized to each room and its daylight.
Warm lighting and uplighting for dinners, receptions and award nights.
LED walls for general sessions, launches and award moments.
Cameras, switching and streaming for hybrid meetings and boardrooms.
We draw layouts from Marriott Riverside's own room specs and a site walk.
Weather-rated audio and lighting for terraces and outdoor spaces.
Itemized budgets for Marriott Riverside, with every line explained.
Our technicians work alongside the hotel's event team from load-in to strike.
Gear ships from our own Southern California warehouses.
We maintain our inventory from VUE, Shure, Barco, Avid, Yamaha and Sony.
We work in Riverside and across the Inland Empire every week, from Ontario and Rancho Cucamonga to Corona, Moreno Valley and Temecula.
We build walk-in loops, sponsor slides and award graphics sized to your screens.
Our itemized budgets match what is actually in the room.
We keep you updated clearly and consistently from proposal to strike.
Our proposals are drawn from the hotel's own room specs.
In 16 years and 2,113 events, including 85 concerts, our team has handled everything from early design to show day.
Learn More →We support conferences, banquets and weddings, from the Grand Ballroom to the Poolside Patio.
Learn More →Above the Line, your AV partner at Marriott Riverside at the Convention Center. Succeed Today →
Send your RFP or event plan for Marriott Riverside, and we'll return an itemized quote.
