Block Report

4200 Block of Mill St

21 properties on this block in Philadelphia.

View property grades, violation history, tax delinquencies, ownership transfers, title risk scores, and safety data for all 21 properties on the 4200 Block of Mill St.

About this block

The 4200 block of Mill St contains 21 properties tracked on KnowMyBlock, with an average grade of B. Construction dates range from 1945 to 1945. There are currently no open code violations on the block. The block has seen 36 ownership transfers in the last five years. 19 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 14% of its parcels.

All properties on this block (21)

AddressYearOpen violOwner-occGrade
4211 Mill St19450YesA
4213 Mill St19450YesA
4215 Mill St19450YesA
4217 Mill St19450YesA
4219 Mill St19450YesA
4221 Mill St19450YesB
4223 Mill St19450YesB
4225 Mill St19450YesB
4227 Mill St19450YesB
4229 Mill St19450YesB
Show all 21 properties
AddressYearOpen violOwner-occGrade
4231 Mill St19450YesA
4233 Mill St19450YesA
4235 Mill St19450YesA
4237 Mill St19450YesA
4239 Mill St19450YesA
4241 Mill St19450YesA
4242 Mill St0YesD
4243 Mill St19450YesA
4245 Mill St19450YesA
4247 Mill St19450YesA
4249 Mill St0YesD

Recent block activity

  1. 2026-09-19License expired · 4239 Mill St
  2. 2026-07-31License expired · 4227 Mill St
  3. 2026-06-21Tax delinquency recorded · 4242 Mill St
  4. 2026-06-21Tax delinquency recorded · 4211 Mill St
  5. 2026-06-21Tax delinquency recorded · 4223 Mill St
  6. 2026-06-21Tax delinquency recorded · 4221 Mill St
  7. 2026-06-21Tax delinquency recorded · 4249 Mill St
  8. 2026-05-28Complaint filed · 4225 Mill St — Zoning Residential
  9. 2026-03-01Tax delinquency recorded · 4215 Mill St
  10. 2026-03-01Tax delinquency recorded · 4242 Mill St
  11. 2026-03-01Tax delinquency recorded · 4249 Mill St
  12. 2025-11-03Violation resolved · 4227 Mill St — PM15-302.4

Block health comparison

ScopeAvg gradeOpen viol/property
BlockB0.00
StreetB0.00
ZIP 19136A0.08
Citywide