Private company

Weeks and Day

Former American architectural firm

Weeks and Day was an American architectural firm founded in 1916 by architect Charles Peter Weeks (1870–1928) and engineer William Peyton Day (1886–1966). The firm worked throughout California but mainly in the San Francisco Bay Area, and many of their works are listed in the National Register of Historic Places.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1916Founded1

Weeks and Day was an American architectural firm founded in 1916 by architect Charles Peter Weeks (1870–1928) and engineer William Peyton Day (1886–1966). The firm worked throughout California but mainly in the San Francisco Bay Area, and many of their works are listed in the National Register of Historic Places.2

The story

Founded by Charles Peter Weeks and William Peyton Day in 1916.1

Leadership

Who has led Weeks and Day, and when. Pick a name to see everywhere that person has worked.

Timeline

  1. 1916Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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