San Francisco County Municipal Code § 10 Significance of Individual Buildings to the Historic District

Each building within the Alert Alley Early Residential District is assigned to either of the following categories. Contributory. This category identified buildings that date from the District’s period of significance and retain integrity. These structures are of the highest importance in maintaining the character of the District. The maximum suspension period allowable under Article 10 shall be imposed on applications for demolition of Contributory buildings. The following buildings are deemed Contributory to the Alert Alley Early Residential District: APN From St. # To St. # Street Name Year Built APN From St. # To St. # Street Name Year Built 3557 131-132 1919 1923 15th Street 1900 3557 059 1925 1929 15th Street 1906 3557 058 1931 1933 15th Street 1905 3557 057 1935 1947 15th Street 1905 3557 056A 1949 1949 15th Street 1900 3557 011 3310 3312 16th Street 1905 3557 148 3322 3322 16th Street 1907 3557 156 3330 3330 16th Street 1907 3557 017 3344 3348 16th Street 1906 3557 135-147 200 200 Dolores 1903 and 2014 3557 008A 260 264 Dolores 1900 3557 009B 266 270 Dolores 1903 3557 121-123 272 276 Dolores 1900 3557 116-118 278 282 Dolores 1907 3557 056B 101 101 Landers 1900 3557 023 156 156 Landers 1900 3557 133-134 160 162 Landers 1900 3557 025 166 168 Landers 1900

Noncontributory. This category identifies buildings that postdate the District’s period of significance and/or no longer retain sufficient integrity to convey significance. The following buildings shall be deemed Noncontributory to the Alert Alley Early Residential District:

APN From St. # To St. # Street Name Year Built 3557 012 3314 3320 16th Street 1907 3557 015 3336 3338 16th Street 1906 3557 016 3340 3342 16th Street 1906

(Added by Ord. 15-26, File No. 251101, App. 2/13/2026, Eff. 3/16/2026)