Multi-family report

1816 Diamond St

9 bd3 ba3 stories2,736 sqftRM1built 1915

Property at a glanceApartment building

Entity-held

2026 assessment
$422K OPA value, not a listing price
From above · selected parcel outlined; choose a neighboring polygon to open it — imagery © Esri, Maxar

Assessment and City record timeline

Published City assessments for this building 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$500K$1.0MZIP 19121 (Brewerytown · Sharswood) median$438K2006201020142018202220262027
Property assessmentBlock median & rangeZIP 19121 (Brewerytown · Sharswood) medianAssessmentDeed / saleL&I violationPermitInspectionLicense

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 record58 events · exact dates, newest first
  1. InspectionL&I investigation
  2. L&I violationPERIODIC TESTING
  3. L&I violationRENTAL LICENSE MULTI FAMILY (R2)
  4. InspectionL&I investigation
  5. Deed / saleDeed / sale $879K
  6. LicenseCyprian Sadlon (1816 Diamond LLC): Rental landlord or residential registration marked inactive
  7. InspectionL&I investigation
  8. InspectionL&I investigation
  9. L&I violationELECTRICAL- RECEPTACLES
  10. L&I violationEXTERIOR AREA RODENT HARBORAGE
  11. L&I violationTANKS OUT-OF-SERVICE 90 DAYS
  12. L&I violationCERTIFICATION
  13. L&I violationHANDRAILS & GUARDS
  14. L&I violationFOOD PREPARATION
  15. L&I violationRUBBISH & GARBAGE
  16. L&I violationOPEN JUNCTION BOXES
  17. L&I violationINTERIOR SURFACES
  18. InspectionL&I investigation
  19. LicenseMARK ADLER: Rental landlord or residential registration marked inactive
  20. LicenseCyprian Sadlon (1816 Diamond LLC): Rental landlord or residential registration initially issued
  21. Deed / saleDeed / sale $345K
  22. Deed / saleDeed / sale $345K
  23. PermitPlumbing
  24. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  25. InspectionPRECOURT (likely: pre-court compliance inspection)
  26. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  27. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  28. L&I violationINT DOOR SELF-CLOSE
  29. L&I violationANNUAL CERT FIRE ALARM
  30. L&I violationFIRE-PULL STATION SIGNS
  31. L&I violationFIRE EXTING-NEEDS INSP/TAG (Fire extinguisher needs inspection and a current service tag)
  32. L&I violationFIRE EXTING-INSTALL R2
  33. L&I violationFIRE EXTING-INSTALL MAX 75FT
  34. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  35. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  36. LicenseMARK ADLER: Rental landlord or residential registration initially issued
  37. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  38. L&I violationFIRE EXTING-NEEDS INSP/TAG (Fire extinguisher needs inspection and a current service tag)
  39. L&I violationFIRE-PULL STATION SIGNS
  40. L&I violationINT DOOR SELF-CLOSE
  41. L&I violationRENEW LIC INDICATED
  42. L&I violationANNUAL CERT FIRE ALARM
  43. L&I violationFIRE EXTING-INSTALL R2
  44. L&I violationFIRE EXTING-INSTALL MAX 75FT
  45. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  46. L&I violationEXT S-ROOF REPAIR (Repair the exterior roof)
  47. L&I violationINT S-CEILING REPAIR/MAINT SAN
  48. L&I violationDRAINAGE-DOWNSPOUT REPR/REPLC
  49. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  50. LicenseDIANE BABICZ: Rental landlord or residential registration marked inactive
  51. Deed / saleDeed / sale $270K
  52. LicenseDIANE BABICZ: Rental landlord or residential registration initially issued
  53. LicenseINNOVATIVE PROPERTIES WORLDWIDE LLC: Rental landlord or residential registration marked inactive
  54. LicenseM M NICOLAIS GROUP INC: Rental landlord or residential registration marked inactive
  55. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  56. LicenseINNOVATIVE PROPERTIES WORLDWIDE LLC: Rental landlord or residential registration initially issued
  57. LicenseM M NICOLAIS GROUP INC: Rental landlord or residential registration initially issued
  58. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)

Flags: 2 open L&I violations. Informational only. Not investment advice or a consumer report (FCRA).

Verify the public record

$5,906/year estimated property tax

2026 taxable assessment $421,900 × 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 $437,700. 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 321178900
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.”

The property, on paper

OPA physical field record.

Bedrooms
9
Bathrooms
3
Stories
3
Interior
2,736 sqft livable area
Lot
1,344 sqft
Basement
Full city code D
Heat
Forced hot air city code A
Central air
Yes
Exterior condition
Average city code 4
Interior condition
Above average city code 3
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.

Recorded owner

Who's behind it

West Diamond Estates LLC · corporate / LLC owner

• Tax bills mail to 1006 E Rittenhouse St, Philadelphia PA, 19138

Block context

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

See the whole block →

Next door: 1814 Diamond St  ·  1818 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.

Cyprian Sadlon (1816 Diamond LLC)Inactive

Rental · Initial issue date Apr 11, 2018 · Terminal license date Jun 9, 2021

MARK ADLERInactive

Rental · Initial issue date Oct 9, 2015 · Terminal license date Dec 30, 2018

DIANE BABICZInactive

Rental · Initial issue date Aug 11, 2011 · Terminal license date Apr 29, 2015

INNOVATIVE PROPERTIES WORLDWIDE LLCInactive

Rental · Initial issue date Feb 20, 2008 · Terminal license date Aug 11, 2011

M M NICOLAIS GROUP INCInactive

Rental · Initial issue date Nov 9, 2006 · Terminal license date Aug 11, 2011

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 57 dated rows
  1. InvestigationL&I investigation

    Case CF-2026-046244 · FAILED

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

  2. ViolationPERIODIC TESTING

    Case CF-2026-046244 · Violation VI-2026-029865 · Code F-901.6.4 · OPEN

  3. ViolationRENTAL LICENSE MULTI FAMILY (R2)

    Case CF-2026-046244 · Violation VI-2026-029866 · Code 9-3902 (2) · OPEN

  4. InvestigationL&I investigation

    Case CF-2026-046244 · FAILED

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

  5. Recorded transfer$879K transfer

    2025

  6. License terminal eventCyprian Sadlon (1816 Diamond LLC): Rental landlord or residential registration marked inactive

    License 772462 · Inactive

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

  7. InvestigationL&I investigation

    Case CF-2020-081345 · PASSED

    The cited inspection visit was marked passed.

  8. InvestigationL&I investigation

    Case CF-2020-081345 · FAILED

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

  9. ViolationELECTRICAL- RECEPTACLES

    Case CF-2020-081345 · Violation VI-2020-048635 · Code PM15-605.2 · COMPLIED

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

  10. ViolationEXTERIOR AREA RODENT HARBORAGE

    Case CF-2020-081345 · Violation VI-2020-048631 · Code PM15-302.5 · COMPLIED

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

  11. ViolationTANKS OUT-OF-SERVICE 90 DAYS

    Case CF-2020-081345 · Violation VI-2020-048630 · Code FC-13-2703.2.6.1 · COMPLIED

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

  12. ViolationCERTIFICATION

    Case CF-2020-081345 · Violation VI-2020-048636 · Code FC-13-915 · COMPLIED

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

  13. ViolationHANDRAILS & GUARDS

    Case CF-2020-081345 · Violation VI-2020-048637 · Code PM15-307 · COMPLIED

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

  14. ViolationFOOD PREPARATION

    Case CF-2020-081345 · Violation VI-2020-048638 · Code PM15-404.7 · COMPLIED

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

  15. ViolationRUBBISH & GARBAGE

    Case CF-2020-081345 · Violation VI-2020-048633 · Code PM15-308.1 · COMPLIED

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

  16. ViolationOPEN JUNCTION BOXES

    Case CF-2020-081345 · Violation VI-2020-048634 · Code FC-13-605.6 · COMPLIED

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

  17. ViolationINTERIOR SURFACES

    Case CF-2020-081345 · Violation VI-2020-048632 · 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.

  18. InvestigationL&I investigation

    Case CF-2020-081345 · FAILED

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

  19. License terminal eventMARK ADLER: Rental landlord or residential registration marked inactive

    License 680227 · Inactive

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

  20. License issue eventCyprian Sadlon (1816 Diamond LLC): Rental landlord or residential registration initially issued

    License 772462 · Inactive

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

  21. Recorded transfer$345K transfer

    2018

  22. PermitPlumbing

    Permit 824969 · COMPLETED

    REPLACE HOUSE TRAP AND FAI PA20172900748 SELF CERTIFICATION NO LONGER ACCEPTED ALL TRENCHES IN EXCESS OF 5 FT MUST HAVE APPROVED SHORING AT THE TIME OF INSPECTION.

  23. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 525070 · 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. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 508308 · PASSED

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

  25. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 508308 · 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.

  26. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 508308 · 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 DOOR SELF-CLOSE

    Case 508308 · Violation 3830193 · Code FC-703.1/4 · COMPLIED

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

  28. ViolationANNUAL CERT FIRE ALARM

    Case 508308 · Violation 3830198 · Code FC-915.1/3 · COMPLIED

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

  29. ViolationFIRE-PULL STATION SIGNS

    Case 508308 · Violation 3830197 · Code FC-907.4/4 · COMPLIED

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

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

    Case 508308 · Violation 3830196 · Code FC-906.2/2 · COMPLIED

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

  31. ViolationFIRE EXTING-INSTALL R2

    Case 508308 · Violation 3830195 · Code FC-906.2/1 · COMPLIED

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

  32. ViolationFIRE EXTING-INSTALL MAX 75FT

    Case 508308 · Violation 3830194 · Code FC-906.1/1 · COMPLIED

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

  33. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 486575 · 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 508308 · 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. License issue eventMARK ADLER: Rental landlord or residential registration initially issued

    License 680227 · Inactive

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

  36. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 502998 · 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.

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

    Case 502998 · Violation 3714479 · Code FC-906.2/2 · COMPLIED

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

  38. ViolationFIRE-PULL STATION SIGNS

    Case 502998 · Violation 3714480 · Code FC-907.4/4 · COMPLIED

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

  39. ViolationINT DOOR SELF-CLOSE

    Case 502998 · Violation 3714486 · Code FC-703.1/4 · COMPLIED

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

  40. ViolationRENEW LIC INDICATED

    Case 502998 · Violation 3714482 · Code LR-1 · COMPLIED

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

  41. ViolationANNUAL CERT FIRE ALARM

    Case 502998 · Violation 3714481 · Code FC-915.1/3 · COMPLIED

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

  42. ViolationFIRE EXTING-INSTALL R2

    Case 502998 · Violation 3714478 · Code FC-906.2/1 · COMPLIED

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

  43. ViolationFIRE EXTING-INSTALL MAX 75FT

    Case 502998 · Violation 3714477 · Code FC-906.1/1 · COMPLIED

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

  44. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 502998 · 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. ViolationEXT S-ROOF REPAIR (Repair the exterior roof)

    Case 486575 · Violation 3604091 · Code PM-304.4/1 · COMPLIED

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

  46. ViolationINT S-CEILING REPAIR/MAINT SAN

    Case 486575 · Violation 3604092 · Code PM-305.3/3 · COMPLIED

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

  47. ViolationDRAINAGE-DOWNSPOUT REPR/REPLC

    Case 486575 · Violation 3604090 · Code PM-302.4/7 · COMPLIED

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

  48. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 486575 · 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.

  49. License terminal eventDIANE BABICZ: Rental landlord or residential registration marked inactive

    License 541193 · Inactive

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

  50. Recorded transfer$270K transfer

    2015

  51. License issue eventDIANE BABICZ: Rental landlord or residential registration initially issued

    License 541193 · Inactive

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

  52. License terminal eventINNOVATIVE PROPERTIES WORLDWIDE LLC: Rental landlord or residential registration marked inactive

    License 436248 · Inactive

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

  53. License terminal eventM M NICOLAIS GROUP INC: Rental landlord or residential registration marked inactive

    License 390918 · Inactive

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

  54. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 78258 · 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.

  55. License issue eventINNOVATIVE PROPERTIES WORLDWIDE LLC: Rental landlord or residential registration initially issued

    License 436248 · Inactive

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

  56. License issue eventM M NICOLAIS GROUP INC: Rental landlord or residential registration initially issued

    License 390918 · Inactive

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

  57. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 78258 · 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 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)