Block Report

3900 Block of Mount Vernon St

43 properties on this block in Philadelphia.

View property grades, violation history, tax delinquencies, ownership transfers, title risk scores, and safety data for all 43 properties on the 3900 Block of Mount Vernon St.

About this block

The 3900 block of Mount Vernon St contains 46 properties tracked on KnowMyBlock, with an average grade of B. Construction dates range from 1920 to 2025. There are 7 open code violations across the block. The block has seen 59 ownership transfers in the last five years. 26 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 28% of its parcels.

All properties on this block (46)

Show all 46 properties

Recent block activity

  1. 2027-03-08License expired · 3932-36 Mount Vernon St
  2. 2026-09-19License expired · 3958 Mount Vernon St
  3. 2026-08-24License expired · 3957 Mount Vernon St
  4. 2026-07-19License expired · 3921 Mount Vernon St
  5. 2026-06-29Permit issued · 3917 Mount Vernon St — New Construction, Addition, Gfa Change
  6. 2026-06-21Tax delinquency recorded · 3955 Mount Vernon St
  7. 2026-06-21Tax delinquency recorded · 3942 Mount Vernon St
  8. 2026-06-21Tax delinquency recorded · 3912 Mount Vernon St
  9. 2026-06-21Tax delinquency recorded · 3932-36 Mount Vernon St
  10. 2026-06-21Tax delinquency recorded · 3928 Mount Vernon St
  11. 2026-06-21Tax delinquency recorded · 3957 Mount Vernon St
  12. 2026-06-02Complaint filed · 3937 Mount Vernon St — Encroaching Trees

Block health comparison

ScopeAvg gradeOpen viol/property
BlockB0.16
StreetA0.07
ZIP 19104B0.27
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