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The Conservatory at One Sansome was designed by celebrated Beaux-Arts architect Albert Pissis in 1910 to house the Anglo and London Paris National Bank. To bring our hospitality philosophy and artistic vision to life, we collaborated with Jeff Schlarb Design Studio, one of San Francisco's most coveted interior designers, who worked with our team of hospitality pros to create the sumptuous Holbrook House bar and restaurant, and with MacCracken Robinson Architects' Daniel Robinson to create a truly unrivaled event facility. Every finish is painstakingly considered and carefully executed to contribute to the elegance of The Conservatory, from the gorgeous atrium to the Holbrook House and the refined spaces of the North Lobby.

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Size, Dimensions & Capacities


The Conservatory at One Sansome (Atrium North Lobby+HH) Square Footage 15,650 

Capacity Reception Style (With fire permit) Capacity 2,046


North Lobby Square Footage 5,465 sq ft

North Lobby Conference Room Capacity 119 guests

North Lobby Total Capacity 356 guests

North Lobby Room Dimension 17x12

North Lobby Ceiling Height 12'2"


Holbrook House Square Footage 3,875 sq ft

Holbrook House Restaurant 2,093 sq ft

Holbrook House Patio 1,782 sq ft

Holbrook House Total Occupancy 259 guests

Holbrook Restaurant Occupancy 140 guests

Holbrook Patio Occupancy 119 guests

Holbrook House Ceiling Height 14'2"


Atrium Square Footage 8,092 sq ft

Atrium Banquet Style 420 guests

Atrium Ceremony/Auditorium Style 410 guests

Atrium Reception Style (With North Lobby Bar included) 1,037 guests

Atrium Ceiling Height 57'0"

Key Amenities