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Cathedral School for Boys

Photographer: Matthew Millman

Originally constructed in the 1960s, the Cathedral School for Boys 12,000 square foot capital improvements project consists of a new 4,000 square foot second-level addition and 8,000 square foot renovation of the Lower and Upper School classrooms. The majority of the renovations were made to the original school building, with the new addition being built on top of the structure that was added in 2008 in between the school and Grace Cathedral. Surrounded by the landmark Grace Cathedral, construction in this urban environment was challenging, especially given the location of the addition between the occupied and operational existing school building and the cathedral. The new addition has also been designed following precepts for additions to historic buildings, requiring Historic Preservation Commission review in the planning process.


  • Prefabrication

Completion Year



12,000 square feet


Project Type

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Cathedral School for Boys
San Francisco
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