In 1905 , a celebration of the re-election of Mayor Eugene Schmitz stopped in front of the building and launched fireworks , which ignited the wooden clock tower atop the building . The damaged clock tower was removed and de Young added two additional floors along Market Street and a 16-story annex along Kearny Street . The Chronicle Building survived the 1906 San Francisco earthquake but was badly damaged by the ensuing fire , which gutted the interior . The building was rebuilt by architect Willis Polk , who ran the San Francisco office of Burnham and Root . In 1924 , the '' Chronicle '' moved to its present location at Fifth and Mission streets , and the old Chronicle Building became a normal office building , thenceforth known as the de Young Building or Old Chronicle Building
1906 San Francisco earthquake
1906 San Francisco earthquake
Ritz-Carlton Club and Residences