Block Report

400 Block of Jefferson 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 400 Block of Jefferson St.

About this block

The 400 block of Jefferson St contains 23 properties tracked on KnowMyBlock, with an average grade of B. Construction dates range from 1900 to 2019. There are currently no open code violations on the block. The block has seen 19 ownership transfers in the last five years. 14 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 30% of its parcels.

All properties on this block (23)

AddressYearOpen violOwner-occGrade
406-08 Jefferson St19000YesC
407 Jefferson St19200YesA
409 Jefferson St19200YesA
410 Jefferson St19200YesB
411 Jefferson St19200YesB
412 Jefferson St19200YesA
413 Jefferson St19200YesA
414 Jefferson St19200YesA
416 Jefferson St19200YesB
418 Jefferson St0YesB
Show all 23 properties
AddressYearOpen violOwner-occGrade
420 Jefferson St19200YesA
422 Jefferson St19200YesA
424 Jefferson St19200YesA
426 Jefferson St19200YesA
427 Jefferson St19200YesA
429 Jefferson St0YesC
431-33 Jefferson St20190YesA
434 Jefferson St0YesC
436 Jefferson St0YesC
438 Jefferson St0YesC
440 Jefferson St0YesC
442 Jefferson St0YesC
444 Jefferson St0YesC

Recent block activity

  1. 2026-09-20License expired · 411 Jefferson St
  2. 2026-06-21Tax delinquency recorded · 438 Jefferson St
  3. 2026-06-21Tax delinquency recorded · 416 Jefferson St
  4. 2026-06-21Tax delinquency recorded · 410 Jefferson St
  5. 2026-06-21Tax delinquency recorded · 436 Jefferson St
  6. 2026-06-21Tax delinquency recorded · 440 Jefferson St
  7. 2026-06-21Tax delinquency recorded · 434 Jefferson St
  8. 2026-06-21Tax delinquency recorded · 442 Jefferson St
  9. 2026-06-21Tax delinquency recorded · 444 Jefferson St
  10. 2026-05-12Inspection · 429 Jefferson St
  11. 2026-05-05Complaint filed · 406-08 Jefferson St — Vacant Lot
  12. 2026-05-05Complaint filed · 406-08 Jefferson St — Vacant Lot

Block health comparison

ScopeAvg gradeOpen viol/property
BlockB0.00
StreetB0.45
ZIP 19122B0.14
Citywide