Millennium Tower
San Francisco, CA



Millennium Partners / Mission Street Development


Handel Architects


DeSimone Consulting Engineers

Facade Consultant

Curtainwall Design Consulting


Webcor Builders



Contract Value



60-stories, 645 ft; 933,306 sqft

Building Type


Technology Type

Acoustical Performance, Operable Windows, Supply Chain Management


Design/build program for 300,000 sqft of custom unitized curtainwall, including 8,600 four-sided structurally glazed units, operable vents, glass and metal fins, and a two-story, 43 ft tall glass entranceway


Blue insulated glass units designed with specified acoustic properties


High-rise luxury residential complex located in San Francisco's South of Market District

Nothing affects both a building’s performance and appearance as the building skin does, and here a visually striking and distinctive blue glass curtainwall compliments the elegant and refined design of this luxury condominium high-rise. Millennium Tower is the tallest luxury residential property in San Francisco, the tallest residential building west of the Mississippi, and the fourth tallest structure on the San Francisco skyline.

Designed by acclaimed architect Glenn Rescalvo of Handel Architects, the design/build curtainwall program was demanding in every regard; performance, budget and schedule were all predominant concerns. Enclos provided the developer and build team with the benefit of our well developed global supply chain, assuring abundant capacity and top quality for more than 300,000 square feet of custom unitized curtainwall, all with optimum economy. The curtainwall was shipped from Asia as 8,600 completed units, with the glass panels glazed into assembled frames of extruded aluminum. The glass is structurally glazed on all four sides with a high performance silicone requiring no mechanical capture of the glass to the frame. This technique accommodates an uninterrupted exterior glass surface with no visible framing members. The system also includes operable windows integrated into the curtainwall units.

Millennium Tower has been the recipient of numerous awards, among them:

Award of Merit, California Construction, 2009

Building San Francisco, San Francisco Chamber of Commerce, 2010

Design Award, Society of American Registered Architects National, 2010

Skyscraper of the Year: Finalist, Emporis, 2010

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