Block Report

400 Block of E Loudon St

38 properties on this block in Philadelphia.

View property grades, violation history, tax delinquencies, ownership transfers, title risk scores, and safety data for all 38 properties on the 400 Block of E Loudon St.

About this block

The 400 block of E Loudon St contains 38 properties tracked on KnowMyBlock, with an average grade of A. Construction dates range from 1920 to 1942. There are 4 open code violations across the block. The block has seen 37 ownership transfers in the last five years. 38 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 8% of its parcels.

All properties on this block (38)

AddressYearOpen violOwner-occGrade
414 E Loudon St19401YesB
416 E Loudon St19400YesA
417 E Loudon St19400YesA
418 E Loudon St19400YesA
419 E Loudon St19400YesA
420 E Loudon St19400YesA
421 E Loudon St19400YesA
422 E Loudon St19400YesA
423 E Loudon St19400YesA
424 E Loudon St19400YesA
Show all 38 properties
AddressYearOpen violOwner-occGrade
425 E Loudon St19400YesA
426 E Loudon St19400YesA
427 E Loudon St19400YesA
428 E Loudon St19400YesA
429 E Loudon St19400YesA
430 E Loudon St19400YesA
431 E Loudon St19400YesA
432 E Loudon St19400YesA
433 E Loudon St19400YesA
434 E Loudon St19400YesA
435 E Loudon St19400YesA
436 E Loudon St19400YesA
437 E Loudon St19400YesA
438 E Loudon St19400YesA
439 E Loudon St19400YesA
440 E Loudon St19400YesA
441 E Loudon St19403YesB
442 E Loudon St19400YesA
443 E Loudon St19400YesA
444 E Loudon St19400YesB
445 E Loudon St19400YesA
447 E Loudon St19400YesA
449 E Loudon St19400YesA
451 E Loudon St19400YesA
453 E Loudon St19400YesA
455 E Loudon St19400YesA
457 E Loudon St19420YesA
459 E Loudon St19200YesA

Recent block activity

  1. 2026-10-04License expired · 429 E Loudon St
  2. 2026-06-21Tax delinquency recorded · 439 E Loudon St
  3. 2026-04-11Complaint filed · 442 E Loudon St — Unlicensed Commercial Business (Food, Soal, Auto Repair)
  4. 2026-04-10Permit issued · 428 E Loudon St — Addition And/Or Alteration
  5. 2026-03-01Tax delinquency recorded · 459 E Loudon St
  6. 2025-12-03Transferred · 441 E Loudon St
  7. 2025-12-03Transferred · 441 E Loudon St
  8. 2025-12-03Transferred · 441 E Loudon St
  9. 2025-11-25Transferred · 441 E Loudon St
  10. 2025-11-19Transferred · 432 E Loudon St
  11. 2025-10-29Inspection · 414 E Loudon St
  12. 2025-10-18Violation resolved · 441 E Loudon St — A-301.1/50

Block health comparison

ScopeAvg gradeOpen viol/property
BlockA0.11
StreetA0.22
ZIP 19120A0.11
Citywide