505 Brannan (Pinterest)

San Francisco, California

505 Brannan is a 6-story, 130,000 ft2 office building with a 50,000 ft2 underground garage. The building design includes provisions for expansion to 17 stories and a total of 430,000 ft2 of office area.

Mechanical systems include a unique underfloor air distribution system with all variable speed fans, zero reheat, zero damper losses, and warm supply air to maximize free cooling. This is the most efficient all-air HVAC system possible. An all variable speed water-cooled chilled water plant and condensing boiler heating system serves the air handlers. All systems are designed to be expanded when 11 stories are added in the future.

Size (ft²)

130,000

Stories

6

Project Type

Office

Scope of Work

Full design of BAS; Conceptual design and design/build criteria for both C&S and TI HVAC and Plumbing Systems

Completed

2017

Owner

TMG/Alexandria

Architect

Heller Manus Architects

Contractors

Swinerton (GC)
ACCO (MC)
Syserco (BAS)

Photographer

N/A

References

Heller Manus: Eric Lundquist
Swinerton: Allen Terrell
TMG: Ken Dupee

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