Pier South Resort, Autograph Collection — Event Spaces, Floor Plans & Capacities

800 Seacoast Dr, Imperial Beach, CA 91932

5 rooms · largest space: Boca Rio Ballroom, 1,710 sq ft159 m²

Pier South Resort, Autograph Collection in Imperial Beach offers 5 event rooms. The largest space is Boca Rio Ballroom, 1,710 sq ft159 m². It holds up to 130 guests. Explore the floor plans and capacity charts below, or start arranging your own layout in the free planner.

Plan an event in Boca Rio Ballroom: open a free to-scale layout seating 80 at round tables in its 30 × 57 ft footprint at floors.live/start — no account needed.

Across its 5 rooms, Pier South Resort, Autograph Collection handles theater-style sessions for up to 130, seated banquets for 100 and standing receptions for 100. 2 smaller rooms suit breakouts and board meetings. Exact figures for every room and setup style are in the chart below.

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Unverified listing — compiled from Pier South Resort, Autograph Collection’s published information. Venue staff can verify capacities and setups free: floors.live/venues/us/california/imperial-beach/pier-south-resort-autograph-collection/?claim=1.

Floor plans

Detailed floor plans for Pier South Resort, Autograph Collection are published on the venue’s official site.

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

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Room capacities & dimensions

5 rooms

Room capacities and dimensions for Pier South Resort, Autograph Collection
SpaceSq ft / m²CeilingBanquetTheaterClassroomReceptionConferenceU-Shape
AltaMar RooftopPlan this room →2,050 sq ft190 m²—100——90——
Boca Rio BallroomPlan this room →1,710 sq ft159 m²10 ft3 m90130901004050
Boca Rio Ballroom - A or BPlan this room →855 sq ft79 m²9 ft2.7 m505050503035
Shorebreak BoardroomPlan this room →420 sq ft39 m²9 ft2.7 m12——1212—
Silver Strand PatioPlan this room →1,500 sq ft139 m²—56——80——

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 Pier South Resort, Autograph Collection?

Pier South Resort, Autograph Collection has 5 rooms. The largest space is Boca Rio Ballroom, 1,710 sq ft (30 × 57 ft). Every room's dimensions and seating capacity by setup are listed on this page. Pier South Resort, Autograph Collection's own floor plans are published on its website, linked from this page.

How many event rooms does Pier South Resort, Autograph Collection have?

Pier South Resort, Autograph Collection has 5 rooms.

What is the largest space at Pier South Resort, Autograph Collection?

Boca Rio Ballroom, 1,710 sq ft: 30 × 57 ft, 90 banquet / 130 theater.

How many people can Pier South Resort, Autograph Collection seat for a banquet?

Up to 100 in AltaMar Rooftop. The next largest room, Boca Rio Ballroom, seats 90.

What is the ceiling height at Pier South Resort, Autograph Collection?

The highest ceiling is 10 ft, in Boca Rio Ballroom.

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