Block Report

4900 Block of Knorr St

28 properties on this block in Philadelphia.

View property grades, violation history, tax delinquencies, ownership transfers, title risk scores, and safety data for all 28 properties on the 4900 Block of Knorr St.

About this block

The 4900 block of Knorr St contains 28 properties tracked on KnowMyBlock, with an average grade of A. Construction dates range from 1920 to 1920. There are 1 open code violations across the block. The block has seen 44 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 11% of its parcels.

All properties on this block (28)

AddressYearOpen violOwner-occGrade
4900 Knorr St19200YesA
4901 Knorr St19200YesA
4902 Knorr St19200YesA
4903 Knorr St19200YesA
4904 Knorr St19200YesA
4905 Knorr St19200YesB
4906 Knorr St19201YesA
4907 Knorr St19200YesA
4908 Knorr St19200YesA
4909 Knorr St19200YesB
Show all 28 properties
AddressYearOpen violOwner-occGrade
4910 Knorr St19200YesA
4911 Knorr St19200YesA
4912 Knorr St19200YesA
4913 Knorr St19200YesA
4914 Knorr St19200YesA
4915 Knorr St19200YesA
4916 Knorr St19200YesA
4917 Knorr St19200YesA
4918 Knorr St19200YesA
4919 Knorr St19200YesA
4920 Knorr St19200YesA
4921 Knorr St19200YesA
4922 Knorr St19200YesB
4923 Knorr St19200YesA
4924 Knorr St19200YesA
4926 Knorr St19200YesA
4928 Knorr St19200YesA
4930 Knorr St19200YesA

Recent block activity

  1. 2027-05-17License expired · 4905 Knorr St
  2. 2026-09-17License expired · 4920 Knorr St
  3. 2026-07-13License expired · 4926 Knorr St
  4. 2026-06-21Tax delinquency recorded · 4909 Knorr St
  5. 2026-05-18License issued · 4905 Knorr St
  6. 2026-03-01Tax delinquency recorded · 4905 Knorr St
  7. 2026-03-01Tax delinquency recorded · 4900 Knorr St
  8. 2026-02-04Inspection · 4906 Knorr St
  9. 2026-02-04Violation resolved · 4906 Knorr St — PM15-302.4
  10. 2025-12-30Transferred · 4918 Knorr St
  11. 2025-12-05Transferred · 4903 Knorr St
  12. 2025-11-21Transferred · 4918 Knorr St

Block health comparison

ScopeAvg gradeOpen viol/property
BlockA0.04
StreetA0.05
ZIP 19135A0.12
Citywide