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Where major assessment exemptions change the annual estimate most

The flagged full-minus-taxable gaps over $100,000, multiplied by 1.3998% and summed by block. Homestead-only amounts and full exemptions are excluded. This is not a Revenue ledger or a finding about any exemption program. 13,674 eligible blocks, using the stated public-record basis. Every linked entry opens its underlying report.

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No. 1 on this board$2.4M/yr500-599 Walnut St

35/35 homes flagged · Building-dominated, largest address 100% · 2027 published assessment roll · ZIP 19106 · open the underlying report →

Compared
13,674 eligible blocks
Basis
OPA assessment roll
Record date
2026-07-25

Where do major assessment exemptions change the annual tax estimate most?

2027 published assessment roll · current Top 5 in 34 secondsTranscript and video details →

How to read this board

One metric, one stated population, one source date.

The large value is the ranking metric. Open a row for its underlying ZIP, block, or property report; use the method below before treating the comparison as a conclusion.

Complete ranking

Top 25 blocks, ranked

The flagged full-minus-taxable gaps over $100,000, multiplied by 1.3998% and summed by block. Homestead-only amounts and full exemptions are excluded. This is not a Revenue ledger or a finding about any exemption program. Read the source and date with the value; rankings are comparisons, not appraisals or legal conclusions.

13,674 eligible blocksOPA assessment roll2026-07-25
Ranking metricWhere major assessment exemptions change the annual estimate mostSource = OPA assessments
  1. 500-599 Walnut St35/35 homes flagged · Building-dominated, largest address 100% · 2027 published assessment roll · ZIP 19106$2.4M/yr
  2. 200-299 S 25th St68/76 homes flagged · Building-dominated, largest address 89.5% · 2027 published assessment roll · ZIP 19103$1.8M/yr
  3. 0-99 S 16th St57/116 homes flagged · Building-dominated, largest address 100% · 2027 published assessment roll · ZIP 19102$664K/yr
  4. 4500-4599 Riverside Way58/60 homes flagged · 2027 published assessment roll · ZIP 19127$637K/yr
  5. 600-699 N 5th St52/58 homes flagged · Building-dominated, largest address 31% · 2027 published assessment roll · ZIP 19123$476K/yr
  6. 2100-2199 Walnut St9/48 homes flagged · Building-dominated, largest address 79.2% · 2027 published assessment roll · ZIP 19103$417K/yr
  7. 700-799 S Chris Columbus Blvd53/317 homes flagged · Building-dominated, largest address 76.3% · 2027 published assessment roll · ZIP 19147$389K/yr
  8. 3300-3399 Pietro Way45/45 homes flagged · 2027 published assessment roll · ZIP 19145$359K/yr
  9. 8200-8299 Germantown Ave19/22 homes flagged · Building-dominated, largest address 90.9% · 2027 published assessment roll · ZIP 19118$349K/yr
  10. 200-299 S 24th St13/70 homes flagged · Building-dominated, largest address 54.3% · 2027 published assessment roll · ZIP 19103$336K/yr
  11. 3400-3499 Messina Way39/39 homes flagged · 2027 published assessment roll · ZIP 19145$317K/yr
  12. 2000-2099 Lombard St9/37 homes flagged · 2027 published assessment roll · ZIP 19146$261K/yr
  13. 200-299 S 18th St22/415 homes flagged · Building-dominated, largest address 67.2% · 2027 published assessment roll · ZIP 19103$255K/yr
  14. 200-299 S 6th St4/522 homes flagged · Building-dominated, largest address 50.6% · 2027 published assessment roll · ZIP 19106$246K/yr
  15. 600-699 N 3rd St23/30 homes flagged · Building-dominated, largest address 30% · 2027 published assessment roll · ZIP 19123$246K/yr
  16. 600-699 S 24th St23/82 homes flagged · Building-dominated, largest address 72% · 2027 published assessment roll · ZIP 19146$229K/yr
  17. 1400-1499 S Lawrence Ter25/25 homes flagged · 2027 published assessment roll · ZIP 19147$225K/yr
  18. 100-199 S Front St10/22 homes flagged · Building-dominated, largest address 54.5% · 2027 published assessment roll · ZIP 19106$221K/yr
  19. 1500-1599 Mascher St39/41 homes flagged · Building-dominated, largest address 34.1% · 2027 published assessment roll · ZIP 19122$218K/yr
  20. 1700-1799 N Howard St30/42 homes flagged · 2027 published assessment roll · ZIP 19122$215K/yr
  21. 3400-3499 Pietro Way26/26 homes flagged · 2027 published assessment roll · ZIP 19145$211K/yr
  22. 900-999 N Marshall St46/52 homes flagged · 2027 published assessment roll · ZIP 19123$209K/yr
  23. 1300-1399 S Woodstock St29/32 homes flagged · 2027 published assessment roll · ZIP 19146$208K/yr
  24. 1400-1499 S Leithgow Ter25/25 homes flagged · 2027 published assessment roll · ZIP 19147$208K/yr
  25. 600-699 N 6th St27/27 homes flagged · 2027 published assessment roll · ZIP 19123$205K/yr
Source: OPA Property Assessments · Office of Property Assessment · City of Philadelphia open data · indexed reports fetched 2026-07-16 through 2026-07-29
Exact method and eligibility

Population: blocks with at least 12 qualifying homes. Metric: sum of only the full-minus-taxable gaps over $100,000, excluding full exemptions, multiplied by 1.3998% using each home’s latest billed-year assessment. Homestead-only amounts do not enter this metric.

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