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110 Chattanooga Duplex

Zack | De Vito Architecture

Project Name

110 Chattanooga Duplex

Project Status



5,550 sq. feet

Construction Cost



  • Jim Zack
  • General Contractor: Jim Zack and Lise de Vito,
  • Landscape Architect: Randy Thueme
  • Massimiliano Bozonella



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Project Description

2005 RADA
Single-Family Production Attached / Merit

It's no accident that 110 Chattanooga Duplex strikes a confident yet respectful pose among the Victorian-era row houses in eclectic San Francisco. Architect and builder Jim Zack says that was the goal: to design an obviously modern building that was also sensitive to its traditional neighbors. To pull this off, Zack and his partner, Lise de Vito, gave the units the same scale, massing, and materials as the other buildings but employed those materials in a more expressive, contemporary way.

The duo avoided the stacked-flats and piggyback approach to the units—"They have inherent inequalities," says Zack—in favor of a side-by-side row-house configuration that maintains a democracy of views. They angled the party wall to form trapezoidal shapes and adapted the motion to create lively and clearly defined spaces in the units. In the end, says Zack, the units have equal access to daylight. The judges commended the result, calling it a "very ingenious interweaving of the two units for maximum views."
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