Property report

408 S 9th St

3 stories4,515 sqftRM1built 1850

Property at a glanceApartment building

Knockwood Associates LP

2026 assessment
$1.0M OPA value, not a listing price
2027 published assessment
$1.1M Future roll, not the current tax bill
Neighborhood area
Queen Village · East Passyunk Approximate · based on ZIP 19147
From above · selected parcel outlined; choose a neighboring polygon to open it — imagery © Esri, Maxar

Assessment and City record timeline

The line tracks this property’s published City assessment. Markers show deeds, permits, inspections, licenses, violations, certifications, and appeals on their recorded dates. Select one to read the filing.

Assessments are tax-roll values, not sale prices or appraisals. OPA has published a 2027 assessment of $1,118,100. It is not yet the billed-year tax basis.

$0$1.0M$2.0M$1.1M2004200820122016202020242027
Property assessmentAssessmentL&I violationAppealPermitInspectionLicenseCertification

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. CertificationSprinkler Certification
  2. CertificationSprinkler Certification
  3. CertificationSprinkler Certification
  4. CertificationFire Alarm Certification
  5. PermitAlterations
  6. CertificationSprinkler Certification
  7. CertificationSprinkler Certification
  8. CertificationFire Alarm Certification
  9. CertificationFire Alarm Certification
  10. CertificationSprinkler Certification
  11. CertificationFire Alarm Certification
  12. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  13. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  14. L&I violationINTERIOR SURFACES
  15. L&I violationELECTRICAL -WATER DAMAGED
  16. L&I violationEXTERIOR STRUCTURE WALLS
  17. L&I violationEXTERIOR STRUCT ROOF DRAINAGE
  18. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  19. InspectionPRECOURT (likely: pre-court compliance inspection)
  20. LicenseKNOCKWOOD ASSOCIATES LP: Rental landlord or residential registration initially issued
  21. InspectionPRECOURT (likely: pre-court compliance inspection)
  22. InspectionBP_BLDG
  23. InspectionBP_BLDG
  24. LicenseKNOCKWOOD PARTNERS LP: Rental landlord or residential registration marked inactive
  25. InspectionPRECOURT (likely: pre-court compliance inspection)
  26. PermitSuppression
  27. L&I violationPERMB- INSTALL FIRE SUPP SYS
  28. InspectionBP_BLDG
  29. PermitPlumbing
  30. InspectionPRECOURT (likely: pre-court compliance inspection)
  31. InspectionPRECOURT (likely: pre-court compliance inspection)
  32. PermitElectrical
  33. InspectionPRECOURT (likely: pre-court compliance inspection)
  34. L&I violationPERMB- WORK NOT SAME AS PERMIT
  35. InspectionBP_BLDG
  36. PermitPlumbing
  37. PermitMechanical
  38. InspectionPRECOURT (likely: pre-court compliance inspection)
  39. PermitMajor alteration
  40. InspectionBP_BLDG
  41. AppealBuilding standards appeal
  42. InspectionBP_BLDG
  43. L&I violationHIST DIST-WINDOWS, DOORS ETC
  44. InspectionBP_BLDG
  45. InspectionBP_BLDG
  46. InspectionBP_BLDG
  47. L&I violationPERMB- INSTALL HVAC SYS
  48. L&I violationPERMP- ALTER/REPAIR/REPL PLUMB
  49. L&I violationPERME- INSTALL SERVICE + WIRE
  50. InspectionBP_BLDG
  51. LicenseKNOCKWOOD PARTNERS LP: Rental landlord or residential registration initially issued

Verify the public record

$13,998/year estimated property tax

2026 taxable assessment $1,000,000 × 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 $1,118,100. 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 881008130
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 No current conclusion

This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.

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

Property report

Commercial property

Apartment building, recorded in the City's multi-family category. The public record and owner trail follow.

What it is
Apartment building Apts 5-50 Units Masonry
Owner
Knockwood Associates LP
$ / sq ft
$248 assessed value ÷ interior sqft
Licensed units
5 active rental license
Interior area
4,515 sqft
Lot size
2,000 sqft
Stories
3
Built
1850
Zoning
RM1

Recorded owner

Who's behind it

Knockwood Associates LP · corporate / LLC owner

• Owns 8 properties across Philadelphia under this name, assessed at $12M combined
• Tax bills mail to 1608 Walnut St, Philadelphia PA, 19103
• Holds an active rental license for this address

Block context

400 block of S 9th St. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 406 S 9th St  ·  410 S 9th 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.

KNOCKWOOD ASSOCIATES LPActive

Rental · Initial issue date Nov 12, 2015 · Filed expiration Nov 30, 2026

KNOCKWOOD PARTNERS LPInactive

Rental · Initial issue date Apr 5, 2004 · Terminal license date Apr 29, 2015

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. CertificationSprinkler Certification

    Certification BC-2026-014348 · Certified

    Expires 2027-05-01

  2. CertificationSprinkler Certification

    Certification BC-2025-022925 · Certified

    Expires 2026-08-14

  3. CertificationSprinkler Certification

    Certification BC-2025-014104 · Certified

    Expires 2026-05-09

  4. CertificationFire Alarm Certification

    Certification BC-2025-002606 · Certified

    Expires 2026-01-29

  5. PermitAlterations

    Permit PP-2024-007986 · Expired

    install backflow

  6. CertificationSprinkler Certification

    Certification BC-2024-021139 · Certified

    Expires 2025-06-14

  7. CertificationSprinkler Certification

    Certification BC-2024-015642 · Certified

    Expires 2025-05-10

  8. CertificationFire Alarm Certification

    Certification BC-2024-004585 · Certified

    Expires 2025-02-05

  9. CertificationFire Alarm Certification

    Certification BC-2023-007634 · Certified

    Expires 2024-01-30

  10. CertificationSprinkler Certification

    Certification BC-2022-016411 · Certified

    Expires 2023-09-09

  11. CertificationFire Alarm Certification

    Certification BC-2022-001514 · Certified

    Expires 2023-01-11

  12. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 543015 · 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.

  13. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 543015 · 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.

  14. ViolationINTERIOR SURFACES

    Case 543015 · Violation 4043265 · Code PM15-305.3 · COMPLIED

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

  15. ViolationELECTRICAL -WATER DAMAGED

    Case 543015 · Violation 4043266 · Code PM15-604.4 · COMPLIED

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

  16. ViolationEXTERIOR STRUCTURE WALLS

    Case 543015 · Violation 4043263 · Code PM15-304.6 · COMPLIED

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

  17. ViolationEXTERIOR STRUCT ROOF DRAINAGE

    Case 543015 · Violation 4043264 · Code PM15-304.7 · COMPLIED

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

  18. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 543015 · 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.

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

    Case 438949 · 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.

  20. License issue eventKNOCKWOOD ASSOCIATES LP: Rental landlord or residential registration initially issued

    License 683588 · Active

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

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

    Case 438949 · 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.

  22. InvestigationBP_BLDG

    Case 469161 · PASSED

    The cited inspection visit was marked passed.

  23. InvestigationBP_BLDG

    Case 458394 · PASSED

    The cited inspection visit was marked passed.

  24. License terminal eventKNOCKWOOD PARTNERS LP: Rental landlord or residential registration marked inactive

    License 221317 · Inactive

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

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

    Case 438949 · 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.

  26. PermitSuppression

    Permit 586550 · COMPLETED

    INSTALLED FIRE SPRINKLERS BASEMENT ONLY, 13R, 2" SERVICE ALREADY INSTALLED WORK. PHC NO WORK TO EXTERIOR

  27. ViolationPERMB- INSTALL FIRE SUPP SYS

    Case 469161 · Violation 3475463 · Code A-301.1/27 · COMPLIED

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

  28. InvestigationBP_BLDG

    Case 469161 · FAILED

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

  29. PermitPlumbing

    Permit 588190 · COMPLETED

    1 1/2 WATER SERV (MULTI UNITS) PA20150121116 "SELF-CERTIFICATION'S ARE NO LONGER PERMITTED" - "ALL EXCAVATIONS & PLUMBING TRENCHES IN EXCESS OF 5' IN DEPTH MUST HAVE APPROVED SHORING IN PLACE AT THE TIME OF INSPECTION

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

    Case 416568 · PASSED

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

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

    Case 438949 · 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. PermitElectrical

    Permit 564742 · COMPLETED

    REWIRE 5 APARTMENTS ADD NEW PANELS, FIXTURES, RECEPTS AND SWITCHES THROUGH OUT, REPLACE 200AMP SERVICE WITH A 300AMP SERVICE AS PER 2008 NEC (SOUTH DISTRICT) NEW FIRE ALARM SYSTEM AS PER NFPA72

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

    Case 416568 · 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.

  34. ViolationPERMB- WORK NOT SAME AS PERMIT

    Case 458394 · Violation 3372674 · Code A-302.10/2 · COMPLIED

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

  35. InvestigationBP_BLDG

    Case 458394 · FAILED

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

  36. PermitPlumbing

    Permit 564485 · COMPLETED

    RE ROUGH IN PLUMBING FIXTURES TIE INTO EXISTING STACKS, FURNISH AND INSTALL NEW PLUMBING FIXTURES

  37. PermitMechanical

    Permit 564357 · COMPLETED

    FURNISH AND INSTALL NEW DUCT WORK AND DIFFUSERS. USING EXISTING MECHANICAL EQUIPMENT AS PER PLAN

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

    Case 416568 · PASSED

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

  39. PermitMajor alteration

    Permit 536687 · COMPLETED

    LEVEL III ALTERATIONS FROM THE BASEMENT TO THE FOURTH FLOOR OF AN EXISTING ATTACHED BUILDING. NO WORK TO THE EXIT ENCLOSURE. ALL WORK SHALL BE IN ACCORDANCE WITH APPROVED PLANS.**BUILDING IS NOT REQUIRED TO BE SPRINKLERED PER BBS VARIANCE** ASBESTOS ABATEMENT REQUIRED PRIOR TO COMMENCEMENT OF WORK.

  40. InvestigationBP_BLDG

    Case 438949 · CLOSED

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

  41. AppealBuilding standards appeal

    Appeal 23415 · CLOSED · APPROVED

    Related permit 536687 · ON 7/16/2014, THE DEPARTMENT OF LICENSES AND INSPECTIONS ISSUED A NOTICE OF REFUSAL FOR APPLICATION #536687.

  42. InvestigationBP_BLDG

    Case 438949 · FAILED

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

  43. ViolationHIST DIST-WINDOWS, DOORS ETC

    Case 438949 · Violation 3819106 · Code PM-704.2/4 · CLOSEDCASE

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

  44. InvestigationBP_BLDG

    Case 438949 · FAILED

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

  45. InvestigationBP_BLDG

    Case 416568 · CLOSED

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

  46. InvestigationBP_BLDG

    Case 416568 · FAILED

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

  47. ViolationPERMB- INSTALL HVAC SYS

    Case 416568 · Violation 3376724 · Code A-301.1/46 · COMPLIED

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

  48. ViolationPERMP- ALTER/REPAIR/REPL PLUMB

    Case 416568 · Violation 3376726 · Code A-301.1/55 · COMPLIED

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

  49. ViolationPERME- INSTALL SERVICE + WIRE

    Case 416568 · Violation 3376725 · Code A-301.1/49 · COMPLIED

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

  50. InvestigationBP_BLDG

    Case 416568 · FAILED

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

  51. License issue eventKNOCKWOOD PARTNERS LP: Rental landlord or residential registration initially issued

    License 221317 · Inactive

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

Where this comes from

Methodology & freshness

This report was assembled Jul 23, 2026, 8:48 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)