Apartment building report

517 S 42nd St

3 stories4,625 sqftRTA1built 1870

Property at a glanceApartment building

Individual owner on record

2026 assessment
$1.1M OPA value, not a listing price
2027 published assessment
$1.1M Future roll, not the current tax bill
Neighborhood area
University City · West Powelton Approximate · based on ZIP 19104
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 $1,137,600. It is not yet the billed-year tax basis.

$0$1.0M$2.0M$1.1M2003200720112015201920232027
Property assessmentAssessmentDeed / saleL&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 record55 events · exact dates, newest first
  1. LicenseXian zhong Huang: Rental landlord or residential registration initially issued
  2. LicenseYSD Management Corp: Rental landlord or residential registration marked expired
  3. Deed / saleDeed / sale $1.4M
  4. CertificationFire Alarm Certification
  5. CertificationSprinkler Certification
  6. CertificationFire Alarm Certification
  7. CertificationSprinkler Certification
  8. CertificationFire Alarm Certification
  9. LicenseYSD Management Corp: Rental landlord or residential registration initially issued
  10. PermitNew Construction
  11. PermitAdministrative
  12. PermitNew Construction
  13. PermitNew Construction or Additions
  14. PermitAdministrative
  15. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  16. L&I violationVACANT AND OPEN
  17. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  18. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  19. PermitNew Construction
  20. PermitAddition and/or Alteration
  21. PermitZoning/use
  22. PermitAddition and/or Alteration
  23. PermitZoning/use
  24. License517S 42ND ST LLC: Rental landlord or residential registration marked inactive
  25. AppealRB_LIRB
  26. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  27. InspectionPRECOURT (likely: pre-court compliance inspection)
  28. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  29. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  30. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  31. L&I violationFIRE ESCAPE MAINTENANCE
  32. L&I violationFIRE ESCAPE MATERIALS/STRENGTH
  33. L&I violationFIRE ALARM TESTED/CERTIFIED
  34. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  35. L&I violationANNUAL CERT FIRE ALARM
  36. L&I violationINTERIOR SURFACES
  37. L&I violationELECTRICAL -HAZARD
  38. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  39. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  40. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  41. L&I violationFIRE PROT SYS MAINTENANCE
  42. L&I violationPEST ELIMINATION INFESTATION
  43. L&I violationEXTERIOR STRUCTURE WINDOWS
  44. L&I violationFA-REPAIR SYSTEM
  45. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  46. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  47. License517S 42ND ST LLC: Rental landlord or residential registration initially issued
  48. L&I violationMULTI FAMILY (R2)
  49. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  50. License517S 42ND ST LLC: Dumpster License - Private Property L&I license filing initially issued
  51. LicenseHOWYMK GROUP LLC: Rental landlord or residential registration marked inactive
  52. PermitZoning/use
  53. LicenseHOWYMK GROUP LLC: Rental landlord or residential registration initially issued
  54. LicenseDREXEL PROPERTY GROUP LLC: Rental landlord or residential registration marked inactive
  55. LicenseDREXEL PROPERTY GROUP LLC: Rental landlord or residential registration initially issued

Verify the public record

$10,156/year estimated property tax

2026 taxable assessment $725,565 × 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 $1,137,600. 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 881611400
Open Philadelphia Tax Center →Use “View period balance” to inspect each tax year.
Exemption classificationPartial assessment exemption, basis unverified

2026 OPA taxes $725,565 of $1,091,500 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.

See the assessment math →
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.”

Building report

Apartment building

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

What it is
Apartment building Apts 5-50 Units Masonry
Owner
Individual owner on record Individual name redacted
$ / sq ft
$246 above the $147 median for 2,826 apartments parcels citywide
Licensed units
6 active rental license
Interior area
4,625 sqft
Lot size
3,975 sqft
Stories
3
Built
1870
Zoning
RTA1

Block context

500 block of S 42nd St. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 515 S 42nd St  ·  519 S 42nd 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 27, 2026.

Landlord and residential filings

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

Xian zhong HuangActive

Rental · Initial issue date Jul 23, 2026 · Filed expiration Jul 22, 2027

YSD Management CorpExpired

Rental · Initial issue date Jul 15, 2020 · Terminal license date Jul 14, 2026

517S 42ND ST LLCInactive

Rental · Initial issue date Nov 10, 2016 · Terminal license date Jan 8, 2018

HOWYMK GROUP LLCInactive

Rental · Initial issue date Aug 26, 2004 · Terminal license date Feb 28, 2014

DREXEL PROPERTY GROUP LLCInactive

Rental · Initial issue date Apr 5, 2003 · Terminal license date Feb 29, 2004

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 55 dated rows
  1. License issue eventXian zhong Huang: Rental landlord or residential registration initially issued

    License 1013583 · Active

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

  2. License terminal eventYSD Management Corp: Rental landlord or residential registration marked expired

    License 846118 · Expired

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

  3. Recorded transfer$1.4M transfer

    2026

  4. CertificationFire Alarm Certification

    Certification BC-2025-018641 · Certified

    Expires 2026-07-11

  5. CertificationSprinkler Certification

    Certification BC-2025-014088 · Certified

    Expires 2026-05-27

  6. CertificationFire Alarm Certification

    Certification BC-2024-020192 · Certified

    Expires 2025-07-11

  7. CertificationSprinkler Certification

    Certification BC-2024-015217 · Certified

    Expires 2025-05-01

  8. CertificationFire Alarm Certification

    Certification BC-2023-014283 · Certified

    Expires 2024-07-11

  9. License issue eventYSD Management Corp: Rental landlord or residential registration initially issued

    License 846118 · Expired

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

  10. PermitNew Construction

    Permit 1028882 · Completed

    INSTALL THE FOLLOWING: 17 110V SMOKE ALARMS, 90 RECEPTACLE OUTLETS,75 SWITCHES, 65 LIGHT FIXTURES, , 600AMP SERVICE.PER ENGINEER SEALED DRAWINGS '08 NEC. INSTALL COMPLETE FIRE ALARM SYSTEM PER ENGINEER SEALED AND CITY APPROVED DRAWINGS, '08 NEC,'07 NFPA-72.

  11. PermitAdministrative

    Permit 1001923 · COMPLETED

    AMENDMENT TO PERMIT# 904386---ALTERATIONS TO FRONT EXTERIOR WALLS/REPLACE WITH NEW FRONT FACADE

  12. PermitNew Construction

    Permit 945020 · Completed

    FOR THE INSTALLATION OF A NEW HVAC SYSTEM INCLUDING HEAT PUMPS, REGISTERS, DIFFUSERS, AND ASSOCIATED DUCT WORK AS PER APPROVED PLANS. SEPARATE PERMITS REQUIRED FOR ELECTRICAL AND PLUMBING WORK.

  13. PermitNew Construction or Additions

    Permit 944702 · Completed

    ADDITION: INTERIOR & EXTERIOR PLUMBING; 2 STORY STRUCTURE; 6 DWELLING UNITS-THE INSTALLATION WILL COMPLY WITH THE PHILADEPHIA PLUBMING CODE 2004 ;12 water closets, 12 lavs, 12 showers, 6 kitchen sinks, 6 dishwashers, 6 washer boxes, cast iron and copper, 1/2" ds, 6 lateral, 6x4 curb trap, 4" main drain. THE INSTALLATION WILL COMPLY WITH THE 2004 PHILA PLUMBING CODE.

  14. PermitAdministrative

    Permit 968531 · COMPLETED

    AMENDED APPROVED BUILDING PERMIT A/P #904386 FOR MINOR INTERIOR RENOVATIONS TO THE PREVIOUS BUILDING PERMIT AS PER PLANS.

  15. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 667786 · 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.

  16. ViolationVACANT AND OPEN

    Case 667786 · Violation 4904235 · Code PM15-108.2 · COMPLIED

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

  17. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 667782 · 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.

  18. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 667786 · 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. PermitNew Construction

    Permit 919824 · Completed

    FOR THE INSTALLATION OF AN AUTOMATIC WET SPRINKLER SYSTEM IN ACCORDANCE WITH NFPA 13R USING A NEW 2" FIRE SERVICE LINE, NEW 2" BACKFLOW PREVENTION DEVICE, FOR AN EXPANDED THREE (3) STORY ATTACHED STRUCTURE USED AS GROUP R-2 (SIX-FAMILY DWELLING), AS PER PLANS; SEE AP#904386 FOR BUILDING PERMIT.

  20. PermitAddition and/or Alteration

    Permit 904386 · Completed

    FOR INTERIOR LEVEL 3 ALTERATIONS AND ERECTION OF A TWO(2) STORY ADDITION ABOVE AN EXISTING ONE STORY AS PER PLANS. FOR A MULTI-FAMILY DWELLING UNITS. SEPARATE PERMITS REQUIRED FOR ALL MECHANICAL, ELECTRICAL, PLUMBING AND FIRE SUPPRESSION WORK.

  21. PermitZoning/use

    Permit 874339 · COMPLETED

    FOR THE ERECTION OF 2-STORY ADDITION ABOVE EXISTING 1-STORY PORTION AT THE REAR OF BUILDING, AN ADDITIONAL 3-STORY ADDITION PROPOSED AT THE REAR OF THE BUILDING OF AN EXISTING 3-STORY SEMI-DETACHED BUILDING.FOR THE REMOVAL OF EXISTING 1-STORY PARKING GARAGE AND ADDING TWO OFF-STREET SURFACE PARKING SPACES, SIZE AND LOCATION AS SHOWN ON THE PLAN. FOR EXPANSION OF THE EXISTING NONCONFORMING MULTI-FAMILY (6 DWELLING UNITS) TO THE ADDTION (9.18% INCREASE BASED ON THE FLOOR AREA FOR THE NONCONFORMING USE ACCORDING TO MAX 10% RULE PER PHILADELPHIA ZONING CODE SECTION 14-305(5)(A)(.2)) TO INCLUDE TWO OFF-STREET SURFACE PARKING SPACES, ONE OF THEM IS VAN-ACCESSIBLE.

  22. PermitAddition and/or Alteration

    Permit 793167 · Completed

    FOR THE DEMOLITION OF A REAR BAY WINDOW AND THE ERECTION OF A TWO (2) STORY REAR WOOD-FRAME ADDITION (FIRE-RETARDANT TREATED WOOD MUST BE USED IN ALL EXTERIOR WALLS) ABOVE AN EXISTING ONE (1) STORY PORTION TO EXTEND TWO (2) OF SIX (6) DWELLING UNITS IN AN EXISTING APARTMENT BUILDING. SEPARATE PERMITS REQUIRED FOR ALL MECHANICAL, ELECTRICAL, PLUMBING AND FIRE SUPPRESSION WORK.

  23. PermitZoning/use

    Permit 821910 · COMPLETED

    REAR ADDITION ABOVE EXISTING, EXTENSION OF EXISTING 6 FAMILY, PREVIOUS PERMIT EXPIRED AND FORMER BLDG PERMIT NEVER PICKED UP

  24. License terminal event517S 42ND ST LLC: Rental landlord or residential registration marked inactive

    License 719400 · Inactive

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

  25. AppealRB_LIRB

    Appeal 29815 · OPEN · MOOT

    Related permit 567814 · SOME ISSUES ARE COMPLICATED AND HARD TO RESOLVE AND I NEED MORE TIME.

  26. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 580089 · 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.

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

    Case 567814 · PASSED

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

  28. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 574564 · 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.

  29. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 580089 · 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. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 574564 · 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.

  31. ViolationFIRE ESCAPE MAINTENANCE

    Case 580089 · Violation 4364980 · Code FC-13-101113 · COMPLIED

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

  32. ViolationFIRE ESCAPE MATERIALS/STRENGTH

    Case 580089 · Violation 4364979 · Code FC-13-101111 · COMPLIED

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

  33. ViolationFIRE ALARM TESTED/CERTIFIED

    Case 580089 · Violation 4364981 · Code FC-13-915.1 · COMPLIED

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

  34. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 580089 · 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. ViolationANNUAL CERT FIRE ALARM

    Case 574564 · Violation 4321578 · Code FC-915.1/3 · COMPLIED

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

  36. ViolationINTERIOR SURFACES

    Case 574564 · Violation 4321579 · Code PM15-305.3 · COMPLIED

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

  37. ViolationELECTRICAL -HAZARD

    Case 574564 · Violation 4321580 · Code PM15-604.3 · 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 574564 · 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. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 567814 · 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.

  40. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 567814 · 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.

  41. ViolationFIRE PROT SYS MAINTENANCE

    Case 567814 · Violation 4240179 · Code FC-901.7/1 · COMPLIED

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

  42. ViolationPEST ELIMINATION INFESTATION

    Case 567814 · Violation 4240181 · Code PM15-309.1 · COMPLIED

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

  43. ViolationEXTERIOR STRUCTURE WINDOWS

    Case 567814 · Violation 4240180 · Code PM15-304.13 · COMPLIED

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

  44. ViolationFA-REPAIR SYSTEM

    Case 567814 · Violation 4240178 · Code FC-901.6/6 · COMPLIED

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

  45. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 567814 · 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.

  46. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 559903 · 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.

  47. License issue event517S 42ND ST LLC: Rental landlord or residential registration initially issued

    License 719400 · Inactive

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

  48. ViolationMULTI FAMILY (R2)

    Case 559903 · Violation 4115841 · Code 9-3902 (2) · COMPLIED

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

  49. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 559903 · 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. License issue event517S 42ND ST LLC: Dumpster License - Private Property L&I license filing initially issued

    License 669017 · Active

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

  51. License terminal eventHOWYMK GROUP LLC: Rental landlord or residential registration marked inactive

    License 270220 · Inactive

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

  52. PermitZoning/use

    Permit 505905 · COMPLETED

    ADDITION TO REAR OF 2ND AND 3RD FLOOR AND RENOVATION TO EXISTING 3 STORY BLDG FOR THE USE OF 6 DWELLING UNITS

  53. License issue eventHOWYMK GROUP LLC: Rental landlord or residential registration initially issued

    License 270220 · Inactive

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

  54. License terminal eventDREXEL PROPERTY GROUP LLC: Rental landlord or residential registration marked inactive

    License 222482 · Inactive

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

  55. License issue eventDREXEL PROPERTY GROUP LLC: Rental landlord or residential registration initially issued

    License 222482 · Inactive

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

Where this comes from

Methodology & freshness

This report was assembled Jul 28, 2026, 7:38 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)