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Mandarin Oriental Hotel


San Francisco, CA


Norland Properties (1987 Core & Shell Project) / GEM Realty (2012 Renovation Project)


SOM (1987 Core & Shell Project) / HKS Architects & BAMO, Inc. (2012 Renovation Project)



Project size:

897,000 sqft (1987 Core & Shell Project) / 130,000 sqft (2012 Renovation Project)

Date Completed:

1987 (Core & Shell Project) / 2012 (Renovation Project)

Hathaway Dinwiddie built 345 California Street in 1987. The 48-story building occupies almost a complete city block in the heart of San Francisco’s financial district and includes the Mandarin Oriental Hotel, office and retail space and two below-grade-parking levels.

In 2012, Hathaway Dinwiddie completed the redevelopment of the public spaces of the hotel, including a new front desk configuration, renovation of meetings rooms, creation of a spa and fitness center, replacement of the grand staircase and the creation of new lobby restaurant and bar. The fast tracked, phased renovation accommodated hotel occupancy requirements included in the remodel.

The Mandarin Oriental has been added to Forbes’ exclusive list of Five-Star properties for both the hotel and the spa.