Block Report

1900 Block of S Alder St

42 properties on this block in Philadelphia.

View property grades, violation history, tax delinquencies, ownership transfers, title risk scores, and safety data for all 42 properties on the 1900 Block of S Alder St.

About this block

The 1900 block of S Alder St contains 42 properties tracked on KnowMyBlock, with an average grade of A. Construction dates range from 1940 to 1940. There are 1 open code violations across the block. The block has seen 43 ownership transfers in the last five years. 42 properties on the block were built before 1978 and may carry lead-paint risk under Philadelphia's lead disclosure ordinance. The top three property owners on this block control approximately 7% of its parcels.

All properties on this block (42)

Address	Year	Owner-occ	Grade
1901 S Alder St	1940	Yes	A
1902 S Alder St	1940	Yes	A
1903 S Alder St	1940	Yes	B
1904 S Alder St	1940	Yes	A
1905 S Alder St	1940	Yes	B
1906 S Alder St	1940	Yes	A
1907 S Alder St	1940	Yes	A
1908 S Alder St	1940	Yes	A
1909 S Alder St	1940	Yes	A
1910 S Alder St	1940	Yes	A

Show all 42 properties

Address	Year	Open viol	Owner-occ	Grade
1911 S Alder St	1940	0	Yes	A
1912 S Alder St	1940	0	Yes	A
1913 S Alder St	1940	0	Yes	A
1914 S Alder St	1940	0	Yes	A
1915 S Alder St	1940	0	Yes	A
1916 S Alder St	1940	0	Yes	A
1917 S Alder St	1940	0	Yes	A
1918 S Alder St	1940	0	Yes	A
1919 S Alder St	1940	0	Yes	A
1920 S Alder St	1940	0	Yes	A
1921 S Alder St	1940	0	Yes	A
1922 S Alder St	1940	0	Yes	A
1923 S Alder St	1940	0	Yes	A
1924 S Alder St	1940	0	Yes	A
1925 S Alder St	1940	0	Yes	A
1926 S Alder St	1940	0	Yes	A
1927 S Alder St	1940	0	Yes	A
1928 S Alder St	1940	0	Yes	A
1929 S Alder St	1940	0	Yes	A
1930 S Alder St	1940	0	Yes	A
1931 S Alder St	1940	0	Yes	A
1932 S Alder St	1940	0	Yes	A
1933 S Alder St	1940	0	Yes	A
1934 S Alder St	1940	0	Yes	A
1935 S Alder St	1940	0	Yes	A
1936 S Alder St	1940	0	Yes	A
1937 S Alder St	1940	0	Yes	A
1938 S Alder St	1940	0	Yes	A
1939 S Alder St	1940	0	Yes	A
1940 S Alder St	1940	0	Yes	A
1941 S Alder St	1940	0	Yes	A
1942 S Alder St	1940	1	Yes	B

Recent block activity

2027-05-28License expired · 1937 S Alder St
2027-05-10License expired · 1912 S Alder St
2026-12-10License expired · 1910 S Alder St
2026-05-29License issued · 1937 S Alder St
2026-05-27Inspection · 1942 S Alder St
2026-05-19License issued · 1912 S Alder St
2026-04-30Inspection · 1942 S Alder St
2026-04-30Complaint closed · 1942 S Alder St
2026-04-27Transferred · 1906 S Alder St
2026-04-22Complaint filed · 1942 S Alder St — Vacant Property Complaint
2025-12-09Transferred · 1935 S Alder St
2025-11-18Violation resolved · 1933 S Alder St — A-302.10/2

Block health comparison

Scope	Avg grade	Open viol/property
Block	A	0.02
Street	A	0.05
ZIP 19148	A	0.07
Citywide	—	—