Block Report

1900 Block of E Ontario St

39 properties on this block in Philadelphia.

View property grades, violation history, tax delinquencies, ownership transfers, title risk scores, and safety data for all 39 properties on the 1900 Block of E Ontario St.

About this block

The 1900 block of E Ontario St contains 40 properties tracked on KnowMyBlock, with an average grade of A. Construction dates range from 1910 to 1930. There are 12 open code violations across the block. The block has seen 55 ownership transfers in the last five years. 38 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 10% of its parcels.

All properties on this block (40)

Address	Year	Open viol	Owner-occ	Grade
1900-02 E Ontario St	1930	0	Yes	C
1901 E Ontario St	1910	4	Yes	B
1903 E Ontario St	1910	0	Yes	B
1904 E Ontario St	1910	0	Yes	A
1905 E Ontario St	1910	0	Yes	A
1906 E Ontario St	1910	0	Yes	A
1907 E Ontario St	1910	0	Yes	A
1908 E Ontario St	1910	0	Yes	A
1909 E Ontario St	1910	0	Yes	A
1910 E Ontario St	1910	0	Yes	A

Show all 40 properties

Address	Year	Open viol	Owner-occ	Grade
1911 E Ontario St	1910	0	Yes	A
1912 E Ontario St	—	0	Yes	B
1913 E Ontario St	1910	0	Yes	A
1914 E Ontario St	1910	0	Yes	A
1915 E Ontario St	1910	0	Yes	A
1916 E Ontario St	1910	0	Yes	A
1917 E Ontario St	1910	0	Yes	A
1918 E Ontario St	1910	0	Yes	A
1919 E Ontario St	1910	0	Yes	A
1920 E Ontario St	1910	0	Yes	A
1921 E Ontario St	1910	7	Yes	B
1922 E Ontario St	1910	1	Yes	B
1924 E Ontario St	—	0	Yes	C
1925 E Ontario St	1910	0	Yes	A
1926 E Ontario St	1910	0	Yes	A
1927 E Ontario St	1910	0	Yes	A
1928 E Ontario St	1910	0	Yes	A
1929 E Ontario St	1910	0	Yes	A
1930 E Ontario St	1910	0	Yes	A
1931 E Ontario St	1910	0	Yes	A
1932 E Ontario St	1910	0	Yes	A
1933 E Ontario St	1910	0	Yes	A
1934 E Ontario St	1910	0	Yes	A
1935 E Ontario St	1910	0	Yes	A
1936 E Ontario St	1910	0	Yes	A
1938 E Ontario St	1910	0	Yes	A
1940 E Ontario St	1910	0	Yes	A
1942 E Ontario St	1910	0	Yes	A
1944 E Ontario St	1910	0	Yes	A
1946 E Ontario St	1910	0	Yes	A

Recent block activity

2027-02-20License expired · 1944 E Ontario St
2026-06-21Tax delinquency recorded · 1900-02 E Ontario St
2026-06-21Tax delinquency recorded · 1932 E Ontario St
2026-06-21Tax delinquency recorded · 1924 E Ontario St
2026-06-20License expired · 1946 E Ontario St
2026-06-02License expired · 1903 E Ontario St
2026-04-24Transferred · 1906 E Ontario St
2026-04-24Transferred · 1906 E Ontario St
2026-03-19Appeal filed · 1925 E Ontario St
2026-03-01Tax delinquency recorded · 1924 E Ontario St
2026-02-16Complaint closed · 1920 E Ontario St
2026-02-06License issued · 1944 E Ontario St

Block health comparison

Scope	Avg grade	Open viol/property
Block	A	0.31
Street	A	0.19
ZIP 19134	A	0.22
Citywide	—	—