Block Report

4100 Block of I St

57 properties on this block in Philadelphia.

View property grades, violation history, tax delinquencies, ownership transfers, title risk scores, and safety data for all 57 properties on the 4100 Block of I St.

About this block

The 4100 block of I St contains 69 properties tracked on KnowMyBlock, with an average grade of A. Construction dates range from 1925 to 1925. There are 2 open code violations across the block. The block has seen 60 ownership transfers in the last five years. 57 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 9% of its parcels.

All properties on this block (50)

Address	Year	Owner-occ	Grade
4100 I St	1925	Yes	A
4101 I St	1925	Yes	A
4102 I St	1925	Yes	A
4103 I St	1925	Yes	A
4104 I St	1925	Yes	A
4105 I St	1925	Yes	A
4106 I St	1925	Yes	A
4107 I St	1925	Yes	A
4108 I St	1925	Yes	A
4109 I St	1925	Yes	A

Show all 50 properties

Address	Year	Owner-occ	Grade
4110 I St	1925	Yes	A
4111 I St	1925	Yes	A
4112 I St	1925	Yes	A
4113 I St	1925	Yes	A
4114 I St	1925	Yes	A
4115 I St	1925	Yes	A
4116 I St	1925	Yes	A
4117 I St	1925	Yes	A
4118 I St	1925	Yes	A
4119 I St	1925	Yes	A
4120 I St	1925	Yes	A
4121 I St	1925	Yes	A
4122 I St	1925	Yes	A
4123 I St	1925	Yes	A
4124 I St	1925	Yes	A
4125 I St	1925	Yes	A
4126 I St	1925	Yes	A
4127 I St	1925	Yes	A
4128 I St	1925	Yes	A
4129 I St	1925	Yes	A
4130 I St	1925	Yes	A
4131 I St	1925	Yes	A
4131R I St	—	Yes	B
4132 I St	1925	Yes	A
4133 I St	1925	Yes	A
4133R I St	—	Yes	B
4134 I St	1925	Yes	A
4135 I St	1925	Yes	C
4135R I St	—	Yes	C
4136 I St	1925	Yes	A
4137 I St	1925	Yes	A
4137R I St	—	Yes	B
4138 I St	1925	Yes	A
4139 I St	1925	Yes	A
4139R I St	—	Yes	B
4140 I St	1925	Yes	A
4141 I St	1925	Yes	A
4141R I St	—	Yes	B
4142 I St	1925	Yes	A
4143 I St	1925	Yes	A

Recent block activity

2027-02-28License expired · 4133 I St
2026-09-23License expired · 4136 I St
2026-07-19License expired · 4120 I St
2026-07-08License expired · 4135 I St
2026-06-21Tax delinquency recorded · 4135 I St
2026-06-21Tax delinquency recorded · 4143R I St
2026-06-21Tax delinquency recorded · 4123 I St
2026-06-21Tax delinquency recorded · 4135R I St
2026-06-21Tax delinquency recorded · 4113 I St
2026-06-08Complaint filed · 4152 I St — Building Structurally Deficient (Occupied)
2026-05-12Inspection · 4153R I St
2026-04-29Transferred · 4121 I St

Block health comparison

Scope	Avg grade	Open viol/property
Block	A	0.00
Street	A	0.07
ZIP 19124	A	0.18
Citywide	—	—