The Block Report

House report

819 S Allison St

3 bd1 ba1,140 sqftRM1built 1925

Property at a glanceHouse

Individual, other or unknown mailing address

2026 assessment
$86K OPA value, not a listing price
From above · selected parcel outlined; choose a neighboring polygon to open it — imagery © Esri, Maxar
Open L&I record

5 violation rows marked OPEN in 1 active case

The actual City titles, code sections, case posture, and latest recorded inspections are shown here instead of only an aggregate count.

Open City history ↗
Case CF-2021-033447

Notice Of Violation

IN VIOLATION

Opened Apr 28, 2021 · Latest inspection FAILED · Aug 16, 2021

  • Exterior Area WeedsPM15-302.4
  • Exterior Area SanitationPM15-302.1
  • Exterior Structure Roof DrainagePM15-304.7
  • Exterior Area Accessory StructuresPM15-302.7
  • Rental License- One & Two Family (R3)9-3902 (1)

OPEN is the status in the fetched L&I file, not a new inspection by BlockReport. Read the notice for the cited condition and required correction, then verify the live case with L&I.

Assessment and City record timeline

Published City assessments for this house against its block and ZIP. Dated City filings are marked on the same line. Select one to read it. Assessments are tax-roll values, not sale prices or appraisals.

$0$100K$200KZIP 19143 (Cedar Park · Kingsessing) median$84K2006201020142018202220262027
Property assessmentBlock median & rangeZIP 19143 (Cedar Park · Kingsessing) medianAssessmentDeed / saleL&I violationInspectionLicense

Scroll horizontally to move through the years. Each icon sits on its recorded date; records without a day are labeled and centered within their year. Select one to explain the filing.

Highlight
Every dated record51 events · exact dates, newest first
  1. InspectionL&I investigation
  2. InspectionL&I investigation
  3. L&I violationEXTERIOR AREA WEEDS
  4. L&I violationEXTERIOR AREA SANITATION
  5. L&I violationEXTERIOR STRUCTURE ROOF DRAINAGE
  6. L&I violationEXTERIOR AREA ACCESSORY STRUCTURES
  7. L&I violationRENTAL LICENSE- ONE & TWO FAMILY (R3)
  8. InspectionL&I investigation
  9. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  10. L&I violationEXTERIOR AREA WEEDS
  11. L&I violationMULTI FAMILY (R2)
  12. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  13. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  14. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  15. L&I violationEXTERIOR AREA WEEDS
  16. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  17. InspectionPRECOURT (likely: pre-court compliance inspection)
  18. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  19. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  20. L&I violationVACANT STRUCTURE LICENSE
  21. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  22. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  23. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  24. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  25. LicenseMAMADOU S DIALLO: Rental landlord or residential registration marked inactive
  26. L&I violationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)
  27. L&I violationLICENSE-RES MFD
  28. L&I violationVACANT PROP STANDARD (likely: vacant-property enforcement standard)
  29. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  30. InspectionPRECOURT (likely: pre-court compliance inspection)
  31. InspectionPRECOURT (likely: pre-court compliance inspection)
  32. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  33. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  34. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  35. L&I violationLICENSE-NO LIC/NO RENT
  36. L&I violationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)
  37. L&I violationLICENSE-RES SFD/2FD
  38. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  39. InspectionPRECOURT (likely: pre-court compliance inspection)
  40. LicenseMAMADOU S DIALLO: Rental landlord or residential registration initially issued
  41. InspectionBRU INSP
  42. InspectionBRU INSP
  43. InspectionBRU INSP
  44. InspectionBRU INSP
  45. Deed / saleDeed / sale $10K
  46. L&I violationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)
  47. InspectionBRU INSP
  48. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  49. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  50. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  51. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)

Flags: 5 L&I violation rows marked OPEN · $4K recorded in the June 2022 delinquency snapshot; verify current balance · historical tax ledger through 2016 recorded $720 with a lien entry. Informational only. Not investment advice or a consumer report (FCRA).

Verify the public record

$1,209/year estimated property tax

2026 taxable assessment $86,400 × 1.3998%. This is an estimate, not a bill or account balance. The City maintains payments, credits, interest, and the current amount due.

OPA has published a 2027 assessment of $84,100. It is not the 2026 billed-year value.

Current City balanceCheck Tax Center

Payments, credits, interest, and the current amount due are maintained by the City.

OPA 463205600
Open Philadelphia Tax Center →Use “View period balance” to inspect each tax year.
Exemption classificationNo exemption shown

2026 taxable assessment equals the full assessed value.

Historical delinquency sources Record found

$4,228.76 was recorded for this parcel in Philadelphia's June 2022 delinquency snapshot for 2016–2021. That amount may have been paid, reduced, or increased since; it is not a current payoff figure.

$2,026.70 principal$850.60 interest$235.56 penalty$1,115.90 other charges
6years recorded 2016–2021tax periods 2019-12-06last payment in snapshot Yesactionable flag Nopayment agreement Nobankruptcy flag Noassessment appeal

The snapshot’s 2022 context used $40,200 total assessment, $40,200 taxable, and $0 exempt/abated. Those historical fields can differ from today’s OPA exemption status.

A separate historical parcel ledger ending in 2016 records $719.79 and a lien entry. It is shown as historical context only.

2016$719.79 total · $577.91 principal · $8.66 interest · $5.78 penalty

For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”

The property, on paper

OPA physical field record.

Bedrooms
3
Bathrooms
1
Interior
1,140 sqft livable area
Lot
1,028 sqft
Exterior condition
Average city code 4
Interior condition
Below average city code 5
Quality grade
C assessor's grade
Zoning
RM1 city zoning code

OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.

Block context

800 block of S Allison St. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 817 S Allison St  ·  821 S Allison St

Business licenses at this address Latest pull

What L&I has registered at this OPA parcel, newest initial license date first.

Open the City record ↗

No L&I business license is on record at this address in data through Jul 23, 2026.

Landlord and residential filings

These are property registrations or landlord filings, not businesses operating at this address.

MAMADOU S DIALLOInactive

Rental · Initial issue date Sep 9, 2008 · Terminal license date Dec 22, 2012

A license is an L&I registration, not proof that a business is open, operating today, or located at this storefront. Dates are license dates. Events are deduped by parcel, business identity, and license type, so a renewal is not shown as another opening. Other permit and filing types remain in the full source ledger.

Open every source row 51 dated rows
  1. InvestigationL&I investigation

    Case CF-2021-033447 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  2. InvestigationL&I investigation

    Case CF-2021-033447 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  3. ViolationEXTERIOR AREA WEEDS

    Case CF-2021-033447 · Violation VI-2021-025458 · Code PM15-302.4 · OPEN

    The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.

  4. ViolationEXTERIOR AREA SANITATION

    Case CF-2021-033447 · Violation VI-2021-025457 · Code PM15-302.1 · OPEN

    The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.

  5. ViolationEXTERIOR STRUCTURE ROOF DRAINAGE

    Case CF-2021-033447 · Violation VI-2021-025456 · Code PM15-304.7 · OPEN

    The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.

  6. ViolationEXTERIOR AREA ACCESSORY STRUCTURES

    Case CF-2021-033447 · Violation VI-2021-025455 · Code PM15-302.7 · OPEN

    The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.

  7. ViolationRENTAL LICENSE- ONE & TWO FAMILY (R3)

    Case CF-2021-033447 · Violation VI-2021-025450 · Code 9-3902 (1) · OPEN

    The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.

  8. InvestigationL&I investigation

    Case CF-2021-033447 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  9. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 687448 · PASSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.

  10. ViolationEXTERIOR AREA WEEDS

    Case 687448 · Violation 5053550 · Code PM15-302.4 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  11. ViolationMULTI FAMILY (R2)

    Case 687448 · Violation 5053549 · Code 9-3902 (2) · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  12. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 687448 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  13. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 647764 · PASSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.

  14. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 647764 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  15. ViolationEXTERIOR AREA WEEDS

    Case 647764 · Violation 4803330 · Code PM15-302.4 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  16. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 647764 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  17. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 549547 · FAILED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  18. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 549547 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  19. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 549547 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  20. ViolationVACANT STRUCTURE LICENSE

    Case 549547 · Violation 4271564 · Code 9-3905 · CLOSEDCASE

    City marked the case closed; that does not mean the original condition never existed.

  21. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 549547 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  22. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 342041 · PASSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.

  23. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 314392 · PASSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.

  24. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 342041 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  25. License terminal eventMAMADOU S DIALLO: Rental landlord or residential registration marked inactive

    License 455925 · Inactive

    License event. Registration does not prove present operation or storefront occupancy.

  26. ViolationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)

    Case 342041 · Violation 2729765 · Code PM-302.3/1 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  27. ViolationLICENSE-RES MFD

    Case 342041 · Violation 2729764 · Code PM-102.1/1 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  28. ViolationVACANT PROP STANDARD (likely: vacant-property enforcement standard)

    Case 342041 · Violation 2729766 · Code PM-306.0/1 · COMPLIED

    A legacy L&I label associated with vacant-property requirements. It may concern licensing, securing, or maintaining a vacant structure; the notice and cited code control, and this row alone does not prove the property is vacant now. City marked this violation complied with; check the resolution date and live case for what was accepted.

  29. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 342041 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  30. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 281974 · CLOSED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. City marked the record closed; open the case for the closing reason.

  31. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 281974 · FAILED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  32. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 281974 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  33. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 281974 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  34. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 281974 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  35. ViolationLICENSE-NO LIC/NO RENT

    Case 281974 · Violation 2328157 · Code PM-102.6/3 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  36. ViolationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)

    Case 281974 · Violation 2328158 · Code PM-302.3/1 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  37. ViolationLICENSE-RES SFD/2FD

    Case 281974 · Violation 2328156 · Code PM-102.3/1 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  38. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 281974 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  39. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 133739 · PASSED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.

  40. License issue eventMAMADOU S DIALLO: Rental landlord or residential registration initially issued

    License 455925 · Inactive

    License event. Registration does not prove present operation or storefront occupancy.

  41. InvestigationBRU INSP

    Case 133739 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  42. InvestigationBRU INSP

    Case 133739 · CLOSED

    City marked the record closed; open the case for the closing reason.

  43. InvestigationBRU INSP

    Case 133739 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  44. InvestigationBRU INSP

    Case 133739 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  45. Recorded transfer$10K transfer

    2008

  46. ViolationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)

    Case 133739 · Violation 1024324 · Code PM-302.3/1 · COMPEXCP

  47. InvestigationBRU INSP

    Case 133739 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  48. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 70679 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  49. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 70679 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  50. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 70679 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  51. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 70679 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

Where this comes from
Methodology & freshness

This report was assembled Jul 23, 2026, 5:33 PM ET. Available City datasets are queried from OpenDataPhilly (phl.carto.com) and the cited City ArcGIS feeds; record queries paginate rather than silently taking a first page. For this property: Permits: queried · Violations: queried · Investigations: queried · Appeals: queried · Licenses: queried · Building certifications: queried. “Unavailable” means the source query failed or was not supplied, not “no record.” Reports re-pull on view after seven days and on an overnight rolling schedule; citywide benchmarks recompute weekly. Source dates still govern: the parcel-level tax-delinquency snapshot is June 2022 and the separate detailed tax ledger ends in 2016, so neither establishes today’s balance. The live balance and date-effective payoff must be verified in Tax Center. AI-written passages are grounded in the assembled record and rejected if they state a number the record does not hold.

Official city record ↗  ·  L&I history ↗  ·  See the whole block  ·  Download this record (JSON)