Block Report

4100 Block of Lancaster Ave

27 properties on this block in Philadelphia.

View property grades, violation history, tax delinquencies, ownership transfers, title risk scores, and safety data for all 27 properties on the 4100 Block of Lancaster Ave.

About this block

The 4100 block of Lancaster Ave contains 32 properties tracked on KnowMyBlock, with an average grade of B. Construction dates range from 1915 to 2021. There are 7 open code violations across the block. The block has seen 43 ownership transfers in the last five years. 28 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 25% of its parcels.

All properties on this block (32)

Address	Year	Open viol	Owner-occ	Grade
4100 Lancaster Ave	1915	0	Yes	B
4101-03 Lancaster Ave	1925	0	Yes	B
4102-04 Lancaster Ave	1925	0	Yes	C
4105 Lancaster Ave	1925	1	Yes	B
4106 Lancaster Ave	1925	0	Yes	B
4107 Lancaster Ave	1925	0	Yes	C
4108 Lancaster Ave	1925	0	Yes	B
4109-21 Lancaster Ave	1915	0	Yes	B
4110 Lancaster Ave	1925	0	Yes	B
4112 Lancaster Ave	2021	2	Yes	A

Show all 32 properties

Address	Year	Open viol	Owner-occ	Grade
4123 Lancaster Ave	1925	1	Yes	C
4125 Lancaster Ave	1925	1	Yes	C
4127 Lancaster Ave	1925	0	Yes	B
4130-32 Lancaster Ave	1915	0	Yes	C
4134 Lancaster Ave	1925	0	Yes	B
4136 Lancaster Ave	1915	0	Yes	B
4138 Lancaster Ave	—	0	Yes	B
4140 Lancaster Ave	1915	0	Yes	B
4141 Lancaster Ave	1915	0	Yes	C
4142 Lancaster Ave	1925	0	Yes	A
4143 Lancaster Ave	1925	0	Yes	B
4144 Lancaster Ave	1925	0	Yes	B
4145 Lancaster Ave	1925	0	Yes	B
4147 Lancaster Ave	1925	0	Yes	B
4148 Lancaster Ave	2003	0	Yes	B
4149 Lancaster Ave	1925	0	Yes	B
4151 Lancaster Ave	—	2	Yes	D
4156-60 Lancaster Ave	1925	0	Yes	B
4163 Lancaster Ave	1925	0	Yes	C
4165 Lancaster Ave	1925	0	Yes	B
4167 Lancaster Ave	1925	0	Yes	A
4169 Lancaster Ave	1925	0	Yes	C

Recent block activity

2027-06-26License expired · 4149 Lancaster Ave
2027-04-30License expired · 4100 Lancaster Ave
2027-04-30License expired · 4101-03 Lancaster Ave
2027-02-28License expired · 4140 Lancaster Ave
2027-01-21License expired · 4156-60 Lancaster Ave
2026-06-21Tax delinquency recorded · 4102-04 Lancaster Ave
2026-06-21Tax delinquency recorded · 4151 Lancaster Ave
2026-06-21Tax delinquency recorded · 4107 Lancaster Ave
2026-06-21Tax delinquency recorded · 4141 Lancaster Ave
2026-06-21Tax delinquency recorded · 4123 Lancaster Ave
2026-06-13License expired · 4112 Lancaster Ave
2026-05-21License issued · 4149 Lancaster Ave

Block health comparison

Scope	Avg grade	Open viol/property
Block	B	0.26
Street	B	0.63
ZIP 19104	B	0.27
Citywide	—	—