Block Report

4100 Block of K St

43 properties on this block in Philadelphia.

View property grades, violation history, tax delinquencies, ownership transfers, title risk scores, and safety data for all 43 properties on the 4100 Block of K St.

About this block

The 4100 block of K St contains 43 properties tracked on KnowMyBlock, with an average grade of A. Construction dates range from 1956 to 1958. There are 8 open code violations across the block. The block has seen 65 ownership transfers in the last five years. 43 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 (43)

Address	Year	Owner-occ	Grade
4100 K St	1956	Yes	B
4108 K St	1958	Yes	A
4109 K St	1958	Yes	A
4110 K St	1958	Yes	A
4111 K St	1958	Yes	A
4112 K St	1958	Yes	A
4113 K St	1958	Yes	A
4114 K St	1958	Yes	A
4115 K St	1958	Yes	A
4116 K St	1958	Yes	A

Show all 43 properties

Address	Year	Open viol	Owner-occ	Grade
4117 K St	1958	0	Yes	A
4118 K St	1958	0	Yes	A
4119 K St	1958	0	Yes	A
4120 K St	1958	0	Yes	A
4121 K St	1958	0	Yes	A
4122 K St	1958	0	Yes	A
4123 K St	1958	0	Yes	A
4124 K St	1958	0	Yes	A
4125 K St	1958	1	Yes	B
4126 K St	1958	0	Yes	A
4127 K St	1958	0	Yes	A
4128 K St	1958	0	Yes	A
4129 K St	1958	0	Yes	A
4130 K St	1958	0	Yes	A
4131 K St	1958	0	Yes	B
4132 K St	1958	0	Yes	A
4133 K St	1958	0	Yes	A
4134 K St	1958	0	Yes	A
4135 K St	1958	0	Yes	A
4136 K St	1958	0	Yes	A
4137 K St	1958	0	Yes	A
4138 K St	1958	0	Yes	A
4139 K St	1958	7	Yes	D
4140 K St	1958	0	Yes	A
4141 K St	1958	0	Yes	A
4142 K St	1958	0	Yes	A
4143 K St	1958	0	Yes	A
4144 K St	1958	0	Yes	A
4145 K St	1958	0	Yes	A
4146 K St	1958	0	Yes	A
4147 K St	1958	0	Yes	A
4148 K St	1958	0	Yes	A
4150 K St	1958	0	Yes	A

Recent block activity

2027-01-25License expired · 4136 K St
2026-12-07License expired · 4116 K St
2026-10-09License expired · 4137 K St
2026-09-30License expired · 4134 K St
2026-06-21Tax delinquency recorded · 4131 K St
2026-06-21Tax delinquency recorded · 4128 K St
2026-03-10Transferred · 4113 K St
2026-03-01Tax delinquency recorded · 4128 K St
2026-02-02License expired · 4141 K St
2026-01-29Inspection · 4139 K St
2026-01-15Violation resolved · 4139 K St — PM15-302.4
2026-01-05License issued · 4136 K St

Block health comparison

Scope	Avg grade	Open viol/property
Block	A	0.19
Street	A	0.11
ZIP 19124	A	0.17
Citywide	—	—