Apartment building report

1828 Diamond St

3 stories2,457 sqftRM1built 1915

Property at a glanceApartment building

Anton Investment Group LLC

2026 assessment
$304K OPA value, not a listing price
2027 published assessment
$318K Future roll, not the current tax bill
Neighborhood area
Brewerytown · Sharswood Approximate · based on ZIP 19121
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 $318,400. It is not yet the billed-year tax basis.

$0$250K$500K$318K200720112015201920232027
Property assessmentAssessmentDeed / saleL&I violationPermitInspectionLicenseCertification

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 record53 events · exact dates, newest first
  1. LicenseAnton Investment Group LLC: Rental landlord or residential registration marked inactive
  2. CertificationFire Alarm Certification
  3. CertificationFire Alarm Certification
  4. CertificationFire Alarm Certification
  5. LicenseAnton Investment Group LLC: Rental landlord or residential registration initially issued
  6. InspectionL&I investigation
  7. CertificationFire Alarm Certification
  8. L&I violationINTERIOR SURFACES
  9. L&I violationSUBMISSION OF CERTIFICATIONS
  10. L&I violationRENTAL LICENSE MULTI FAMILY (R2)
  11. L&I violationFIRE EXTINGUISHER HANGERS & BRACKETS
  12. L&I violationFIRE EXTINGUISHERS
  13. InspectionL&I investigation
  14. LicenseSam Xinzhan Tang: Rental landlord or residential registration marked inactive
  15. Deed / saleDeed / sale $330K
  16. InspectionCEASE INSP (likely: cease-operations compliance inspection)
  17. InspectionPRECOURT (likely: pre-court compliance inspection)
  18. InspectionPRECOURT (likely: pre-court compliance inspection)
  19. LicenseSam Xinzhan Tang: Rental landlord or residential registration initially issued
  20. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  21. Deed / saleDeed / sale $125K
  22. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  23. L&I violationMULTI FAMILY (R2)
  24. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  25. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  26. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  27. L&I violationINT-PLMBG MAINT FIXTURES-RES
  28. L&I violationINT S-DOOR REPR/REPLC LOCK
  29. L&I violationINT-KITCHEN STOVE DEFECTIV-RES
  30. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  31. LicenseSUI DAN-JONES: Rental landlord or residential registration marked inactive
  32. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  33. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  34. L&I violationELEC-COVER PLATE DEFECTIVE-RES
  35. L&I violationINT-KITCHEN STOVE DEFECTIV-RES
  36. L&I violationINT A-RODENT BURROWS, ELIMINAT
  37. L&I violationLICENSE-RES MFD
  38. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  39. LicenseSUI DAN-JONES: Rental landlord or residential registration initially issued
  40. PermitElectrical
  41. InspectionPRECOURT (likely: pre-court compliance inspection)
  42. InspectionPRECOURT (likely: pre-court compliance inspection)
  43. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  44. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  45. L&I violationINT-PLMBG FIXTURES-RES
  46. L&I violationFA-REPAIR SYSTEM
  47. L&I violationINT-PLMBG MAINT FIXTURES-RES
  48. L&I violationFIRE EXTING-NEEDS INSP/TAG (Fire extinguisher needs inspection and a current service tag)
  49. L&I violationANNUAL CERT FIRE ALARM
  50. L&I violationLICENSE-RES GENERAL
  51. L&I violationDRAINAGE-KITCHEN DRAIN REP-RES
  52. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  53. Deed / saleDeed / sale $160K

Verify the public record

$4,255/year estimated property tax

2026 taxable assessment $304,000 × 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 $318,400. 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 881146290
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.”

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
Anton Investment Group LLC
$ / sq ft
$130 below the $147 median for 2,826 apartments parcels citywide
Interior area
2,457 sqft
Lot size
1,710 sqft
Stories
3
Built
1915
Zoning
RM1

Recorded owner

Who's behind it

Anton Investment Group LLC · corporate / LLC owner

• Owns 2 properties across Philadelphia under this name, assessed at $647K combined
• Tax bills mail to 3139 Windish St, Philadelphia PA, 19152

Block context

1800 block of Diamond St. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 1826 Diamond St  ·  1830 Diamond 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 25, 2026.

Landlord and residential filings

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

Anton Investment Group LLCInactive

Rental · Initial issue date May 24, 2022 · Terminal license date Jul 22, 2026

Sam Xinzhan TangInactive

Rental · Initial issue date Aug 9, 2016 · Terminal license date Oct 7, 2021

SUI DAN-JONESInactive

Rental · Initial issue date Nov 7, 2012 · Terminal license date Feb 28, 2013

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 53 dated rows
  1. License terminal eventAnton Investment Group LLC: Rental landlord or residential registration marked inactive

    License 896308 · Inactive

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

  2. CertificationFire Alarm Certification

    Certification BC-2026-015739 · Certified

    Expires 2027-06-03

  3. CertificationFire Alarm Certification

    Certification BC-2025-015344 · Certified

    Expires 2026-06-05

  4. CertificationFire Alarm Certification

    Certification BC-2024-019360 · Certified

    Expires 2025-07-01

  5. License issue eventAnton Investment Group LLC: Rental landlord or residential registration initially issued

    License 896308 · Inactive

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

  6. InvestigationL&I investigation

    Case CF-2022-023477 · PASSED

    The cited inspection visit was marked passed.

  7. CertificationFire Alarm Certification

    Certification BC-2022-006348 · Certified

    Expires 2023-04-26

  8. ViolationINTERIOR SURFACES

    Case CF-2022-023477 · Violation VI-2022-019248 · Code PM15-305.3 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  9. ViolationSUBMISSION OF CERTIFICATIONS

    Case CF-2022-023477 · Violation VI-2022-019245 · Code F-901.6.4.2 · COMPLIED

    Resolution: COMPLIED - LICENSE/CERTIFICATE/REPORT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.

  10. ViolationRENTAL LICENSE MULTI FAMILY (R2)

    Case CF-2022-023477 · Violation VI-2022-019247 · Code 9-3902 (2) · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  11. ViolationFIRE EXTINGUISHER HANGERS & BRACKETS

    Case CF-2022-023477 · Violation VI-2022-019251 · Code F-906.7 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  12. ViolationFIRE EXTINGUISHERS

    Case CF-2022-023477 · Violation VI-2022-019253 · Code F-906.2 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  13. InvestigationL&I investigation

    Case CF-2022-023477 · FAILED

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

  14. License terminal eventSam Xinzhan Tang: Rental landlord or residential registration marked inactive

    License 710398 · Inactive

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

  15. Recorded transfer$330K transfer

    2020

  16. InvestigationCEASE INSP (likely: cease-operations compliance inspection)

    Case 296449 · PASSED

    Legacy inspection shorthand; verify whether a cease-operations order existed and its current status. The cited inspection visit was marked passed.

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

    Case 360024 · PASSED

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

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

    Case 510606 · PASSED

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

  19. License issue eventSam Xinzhan Tang: Rental landlord or residential registration initially issued

    License 710398 · Inactive

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

  20. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 510606 · 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.

  21. Recorded transfer$125K transfer

    2016

  22. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 510606 · 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.

  23. ViolationMULTI FAMILY (R2)

    Case 510606 · Violation 4122511 · Code 9-3902 (2) · COMPLIED

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

  24. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 510606 · 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. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 377561 · 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.

  26. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 377561 · 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.

  27. ViolationINT-PLMBG MAINT FIXTURES-RES

    Case 377561 · Violation 2811361 · Code PM-405.3/13 · COMPLIED

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

  28. ViolationINT S-DOOR REPR/REPLC LOCK

    Case 377561 · Violation 2811360 · Code PM-305.5/2 · COMPLIED

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

  29. ViolationINT-KITCHEN STOVE DEFECTIV-RES

    Case 377561 · Violation 2811362 · Code PM-406.4/3 · COMPLIED

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

  30. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 377561 · 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. License terminal eventSUI DAN-JONES: Rental landlord or residential registration marked inactive

    License 577263 · Inactive

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

  32. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 360024 · 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.

  33. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 360024 · 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.

  34. ViolationELEC-COVER PLATE DEFECTIVE-RES

    Case 360024 · Violation 2700878 · Code PM-407.2/7 · COMPLIED

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

  35. ViolationINT-KITCHEN STOVE DEFECTIV-RES

    Case 360024 · Violation 2700877 · Code PM-406.4/3 · COMPLIED

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

  36. ViolationINT A-RODENT BURROWS, ELIMINAT

    Case 360024 · Violation 2700876 · Code PM-303.4/1 · COMPLIED

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

  37. ViolationLICENSE-RES MFD

    Case 360024 · Violation 2700875 · Code PM-102.1/1 · 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 360024 · 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. License issue eventSUI DAN-JONES: Rental landlord or residential registration initially issued

    License 577263 · Inactive

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

  40. PermitElectrical

    Permit 403018 · COMPLETED

    REPLACE THREE BROKEN HORNS, REPLACE TWO E.S.L. SMOKE DETECTORS, CERTIFY FIRE ALARM

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

    Case 296449 · 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.

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

    Case 296449 · 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.

  43. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 296449 · 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.

  44. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 296449 · 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.

  45. ViolationINT-PLMBG FIXTURES-RES

    Case 296449 · Violation 2384427 · Code PM-405.3/1 · COMPLIED

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

  46. ViolationFA-REPAIR SYSTEM

    Case 296449 · Violation 2384423 · Code FC-901.6/6 · COMPLIED

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

  47. ViolationINT-PLMBG MAINT FIXTURES-RES

    Case 296449 · Violation 2384429 · Code PM-405.3/13 · COMPLIED

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

  48. ViolationFIRE EXTING-NEEDS INSP/TAG (Fire extinguisher needs inspection and a current service tag)

    Case 296449 · Violation 2384424 · Code FC-906.2/2 · COMPLIED

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

  49. ViolationANNUAL CERT FIRE ALARM

    Case 296449 · Violation 2384425 · Code FC-915.1/3 · COMPLIED

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

  50. ViolationLICENSE-RES GENERAL

    Case 296449 · Violation 2384426 · Code PM-102.0/1 · COMPLIED

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

  51. ViolationDRAINAGE-KITCHEN DRAIN REP-RES

    Case 296449 · Violation 2384428 · Code PM-405.3/10 · COMPLIED

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

  52. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 296449 · 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.

  53. Recorded transfer$160K transfer

    2007

Where this comes from

Methodology & freshness

This report was assembled Jul 26, 2026, 2:48 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)