Block Report

500 Block of E Clarkson Ave

30 properties on this block in Philadelphia.

View property grades, violation history, tax delinquencies, ownership transfers, title risk scores, and safety data for all 30 properties on the 500 Block of E Clarkson Ave.

About this block

The 500 block of E Clarkson Ave contains 31 properties tracked on KnowMyBlock, with an average grade of A. Construction dates range from 1940 to 1942. There are 6 open code violations across the block. The block has seen 25 ownership transfers in the last five years. 30 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 (31)

Address	Year	Open viol	Owner-occ	Grade
514 E Clarkson Ave	1942	0	Yes	B
516 E Clarkson Ave	1940	0	Yes	A
518 E Clarkson Ave	1942	2	Yes	B
520 E Clarkson Ave	1942	0	Yes	A
521 E Clarkson Ave	1942	0	Yes	A
521R E Clarkson Ave	—	0	Yes	D
522 E Clarkson Ave	1942	0	Yes	A
523 E Clarkson Ave	1940	0	Yes	A
524 E Clarkson Ave	1942	3	Yes	D
525 E Clarkson Ave	1942	0	Yes	A

Show all 31 properties

Address	Year	Open viol	Owner-occ	Grade
526 E Clarkson Ave	1942	0	Yes	A
527 E Clarkson Ave	1942	0	Yes	A
528 E Clarkson Ave	1942	0	Yes	A
529 E Clarkson Ave	1942	0	Yes	A
530 E Clarkson Ave	1942	0	Yes	A
531 E Clarkson Ave	1942	0	Yes	A
532 E Clarkson Ave	1942	0	Yes	A
533 E Clarkson Ave	1942	0	Yes	A
534 E Clarkson Ave	1942	0	Yes	A
536 E Clarkson Ave	1942	0	Yes	A
538 E Clarkson Ave	1942	0	Yes	A
540 E Clarkson Ave	1942	0	Yes	A
542 E Clarkson Ave	1942	0	Yes	A
544 E Clarkson Ave	1942	0	Yes	A
546 E Clarkson Ave	1942	0	Yes	C
548 E Clarkson Ave	1942	0	Yes	A
550 E Clarkson Ave	1942	0	Yes	A
552 E Clarkson Ave	1942	0	Yes	A
554 E Clarkson Ave	1942	0	Yes	A
556 E Clarkson Ave	1942	0	Yes	A
558 E Clarkson Ave	1942	1	Yes	B

Recent block activity

2027-02-28License expired · 536 E Clarkson Ave
2026-06-21Tax delinquency recorded · 546 E Clarkson Ave
2026-06-21Tax delinquency recorded · 521R E Clarkson Ave
2026-05-29Inspection · 518 E Clarkson Ave
2026-05-26Complaint filed · 518 E Clarkson Ave — Unlicensed Rentals
2026-05-19Inspection · 518 E Clarkson Ave
2026-05-02Inspection · 518 E Clarkson Ave
2026-03-30Inspection · 524 E Clarkson Ave
2026-03-01License issued · 536 E Clarkson Ave
2026-03-01Tax delinquency recorded · 546 E Clarkson Ave
2026-03-01Tax delinquency recorded · 521R E Clarkson Ave
2025-12-16Violation resolved · 523 E Clarkson Ave — PM15-308.1

Block health comparison

Scope	Avg grade	Open viol/property
Block	A	0.20
Street	A	0.26
ZIP 19120	A	0.12
Citywide	—	—