Located in the South End Historic District, the recently completed 178 Townsend project added four stories and 94 rental housing units behind the edifice of the former Arc Light Company Station B building. A sleek glass structure was inserted into the original masonry building, juxtaposing materials and volumes. Photo by: Jeremy Blakeslee.

Original architects: Frederick F. Hamilton and George W. Percy (1888) 

Contemporary architect: HKS and Martin Building Co. (2012)  Photo 3 of 7 in 7 Architectural Preservation Projects in San Francisco

7 Architectural Preservation Projects in San Francisco

3 of 7

Located in the South End Historic District, the recently completed 178 Townsend project added four stories and 94 rental housing units behind the edifice of the former Arc Light Company Station B building. A sleek glass structure was inserted into the original masonry building, juxtaposing materials and volumes. Photo by: Jeremy Blakeslee.

Original architects: Frederick F. Hamilton and George W. Percy (1888)

Contemporary architect: HKS and Martin Building Co. (2012)