AKA: California Institute of Technology (Caltech), Parsons-Gates Hall of Administration, Pasadena, CA

Structure Type: built works - public buildings - schools - university buildings

Designers: Bobrow, Thomas and Associates (firm); Goodhue, Bertram Grosvenor, Architect (firm); Grey, Elmer, Architect (firm); Bobrow ; Bertram Grosvenor Goodhue (architect); Elmer Grey (architect)

Dates: constructed 1917

2 stories, total floor area: 28,517 sq. ft.

California Institute of Technology Campus, Pasadena, CA

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California Institute of Technology (Caltech) administrators erected the Gates Chemical Laboratory in 1917, the second building on the campus. After 1983, it became the administration building on campus, accommodating the offices of the president and provost. In 2017, it was the oldest standing building on campus.

Building History

C. W. Gates and P. G. Gates funded the Gates Laboratories of Chemistry initially.

Building Notes

Caltech Building #31.


Additions were made to the chemistry building in 1927 and 1937.

The Gates Chemistry Laboratory suffered significant damage in the Sylmar Earthquake of 1971, and was closed until its renovation in 1983. The firm of Bobrow, Thomas and Associates supervised this renovation. Two charitable foundations, Ralph M. Parsons Foundation and the James Irvine Foundation, provided funding for the repair and renovation of the building into the Parsons-Gates Administration Hall.

PCAD id: 3041