House report

1821 Porter St

4 bd1 ba2 stories1,704 sqftRSA3built 1920

Property at a glanceHouse

Owner-occupancy signal

2026 assessment
$427K 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 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$250K$500KZIP 19145 (Girard Estate · South Philadelphia) median$471K2009201220152018202120242027
Property assessmentBlock median & rangeZIP 19145 (Girard Estate · South Philadelphia) medianAssessmentDeed / saleL&I violationAppealPermitInspection

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 record15 events · exact dates, newest first
  1. InspectionL&I investigation
  2. PermitAddition and/or Alterations
  3. PermitAddition and/or Alteration
  4. PermitAlterations
  5. PermitAddition and/or Alteration
  6. AppealLIRB Violation Appeal
  7. InspectionL&I investigation
  8. InspectionL&I investigation
  9. L&I violationALTER INTERIOR PORTION
  10. L&I violationNEW ELECTRICAL WIRING
  11. L&I violationHVAC SYSTEM
  12. L&I violationNEW PLUMBING
  13. InspectionL&I investigation
  14. Deed / saleDeed / sale $418K
  15. PermitZoning

Flags: 1 zoning/board appeal on record. Informational only. Not investment advice or a consumer report (FCRA).

Verify the public record

$5,972/year estimated property tax

2026 taxable assessment $426,600 × 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 $471,100. 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 262288100
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
4
Bathrooms
1
Stories
2
Interior
1,704 sqft livable area
Lot
2,662 sqft
Basement
Full, finished city code A
Heat
Undetermined city code H
Central air
Yes
Exterior condition
Average city code 4
Interior condition
Average city code 4
Quality grade
C assessor's grade
Zoning
RSA3 city zoning code
Zoning appeals
1 Closed · Complete · 2023

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

Block context

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

See the whole block →

Next door: 1819 Porter St  ·  1823 Porter St

No business or residential license records

No business license or residential registration matched this OPA parcel in the latest City data.

Verify with the City ↗
Open every source row 15 dated rows
  1. InvestigationL&I investigation

    Case CF-2023-037237 · PASSED

    The cited inspection visit was marked passed.

  2. PermitAddition and/or Alterations

    Permit MP-2023-005018 · Completed

    EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES - For the installation of New Ductwork, Registers/Grilles/Diffusers, and Warm-Air Appliances as per attached standards. Deviations from these standards require submission of construction and site plans. Install (1) 92% 60k btu furnace, (1) 3 ton condenser, ductwork, and 6 registers. Per PHDC, the following is required for the approval of this permit: Condenser on roof to be centered, not visible from Porter Street. One condenser at side breezeway. Venting on side breezeway towards rear of building.

  3. PermitAddition and/or Alteration

    Permit EP-2023-011673 · Completed

    Whole house re-wire, 55 receptacles, 22 switches, 50 high hats, 6 smoke detectors, 200 amp panel, 40 circuit panel. No Exterior Work AS PER NEC 2017

  4. PermitAlterations

    Permit PP-2023-015217 · Completed

    Running new plumbing for two(2) full bathroom, 1 kitchen sink and Hot and cold water to 7 fixtures.

  5. PermitAddition and/or Alteration

    Permit RP-2023-007947 · Completed

    LEVEL II INTERIOR ALTERATIONS (NO CHANGE OF OCCUPANCY) FOR RENOVATIONS TO EXISTING SINGLE FAMILY DWELLING AS PER APPROVED PLANS. *2018 IRC REVIEW

  6. AppealLIRB Violation Appeal

    Appeal HA-2023-004301 · Closed · Complete

    see attached

  7. InvestigationL&I investigation

    Case CF-2023-037237 · FAILED

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

  8. InvestigationL&I investigation

    Case CF-2023-037237 · FAILED

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

  9. ViolationALTER INTERIOR PORTION

    Case CF-2023-037237 · Violation VI-2023-028461 · Code A-301.1/4 · COMPLIED

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

  10. ViolationNEW ELECTRICAL WIRING

    Case CF-2023-037237 · Violation VI-2023-028462 · Code A-301.1/50 · COMPLIED

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

  11. ViolationHVAC SYSTEM

    Case CF-2023-037237 · Violation VI-2023-028463 · Code A-301.1/46 · COMPLIED

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

  12. ViolationNEW PLUMBING

    Case CF-2023-037237 · Violation VI-2023-028464 · Code A-301.1/54 · COMPLIED

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

  13. InvestigationL&I investigation

    Case CF-2023-037237 · FAILED

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

  14. Recorded transfer$418K transfer

    2021

  15. PermitZoning

    Permit 190900 · COMPLETED

    DEMOLITION OF EXISTING REAR PORCH. ERECTION OF A ONE STORY REAR ADDITION AND REAR PORCH. NEW SIDE YARD RAMP.

Where this comes from

Methodology & freshness

This report was assembled Jul 24, 2026, 2:53 AM 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)