San Francisco Planning Code § 10 Significance of Individual

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)