Multi-family report

1727 Mifflin St

4 bd3 ba3 stories1,992 sqftRM1built 1920

Property at a glanceApartment building

Owner-occupancy signal

2026 assessment
$499K 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 19145 (Girard Estate · South Philadelphia) median$504K201220152018202120242027
Property assessmentBlock median & rangeZIP 19145 (Girard Estate · South Philadelphia) medianAssessmentDeed / saleL&I violationAppealPermitInspectionLicense

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 record31 events · exact dates, newest first
  1. LicenseJoseph Switzer: Rental landlord or residential registration marked inactive
  2. LicenseJoseph Switzer: Rental landlord or residential registration initially issued
  3. Deed / saleDeed / sale $519K
  4. InspectionPRECOURT (likely: pre-court compliance inspection)
  5. PermitElectrical
  6. PermitMajor alteration
  7. PermitMechanical
  8. InspectionBP_BLDG
  9. PermitSuppression
  10. L&I violationPENALTY- NO PLUMB PERM INFO
  11. L&I violationWORKMANLIKE- PLUMBING CODE
  12. L&I violationPERMP- INST NEW PLUMBING
  13. L&I violationSTOP WORK ORDER
  14. InspectionBP_BLDG
  15. PermitElectrical
  16. PermitAdministrative
  17. PermitMajor alteration
  18. PermitUse
  19. InspectionPRECOURT (likely: pre-court compliance inspection)
  20. AppealZoning board appeal
  21. InspectionBP_BLDG
  22. InspectionBP_BLDG
  23. L&I violationPERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)
  24. L&I violationPENALTY- NO BLDG PERM INFO
  25. L&I violationSWO- CONSTR W/O BLDG PERMIT (Stop-work order for construction without a building permit)
  26. L&I violationPERMB- INT DEMOL WALLS ETC
  27. InspectionBP_BLDG
  28. LicenseGUY Y ALBALANCY: Rental landlord or residential registration marked inactive
  29. LicenseGUY Y ALBALANCY: Rental landlord or residential registration initially issued
  30. LicenseD & M FLORIDA INVESTMENT LLC: Rental landlord or residential registration marked inactive
  31. LicenseD & M FLORIDA INVESTMENT LLC: Rental landlord or residential registration initially issued

Flags: material assessment exemption; legal basis and term unverified · 1 zoning/board appeal on record. Informational only. Not investment advice or a consumer report (FCRA).

Verify the public record

$3,709/year estimated property tax

2026 taxable assessment $264,988 × 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 $504,100. 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 481054000
Open Philadelphia Tax Center →Use “View period balance” to inspect each tax year.
Exemption classificationPartial assessment exemption, basis unverified

2026 OPA taxes $264,988 of $499,300 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.”

The assessment exemption gap

OPA's 2026 roll shows a partial assessment exemption. The annual difference is measurable; the reason for it and what happens after a sale are not established here.

Using OPA's taxable amount ~$3,709/year

$264,988 taxable basis

Difference to verify+$3,280/year
If the full assessment were taxable ~$6,989/year

$499,300 scenario basis

The assessment roll does not identify
  • Legal basis or program
  • Approval or expiration date
  • Treatment after a sale
  • Current Tax Center balance
Show the assessment math 2026: ($499,300 assessed − $234,312 exempt) × 1.3998% ≈ $3,709/year Full-assessment scenario: $499,300 × 1.3998% ≈ $6,989/year

Do not treat the full-assessment scenario as inevitable or assume the current relief transfers. Obtain the approval history and verify the live Tax Center account before relying on either number.

The property, on paper

OPA physical field record.

Bedrooms
4
Bathrooms
3
Stories
3
Interior
1,992 sqft livable area
Lot
1,040 sqft
Basement
Full, unfinished city code C
Heat
Forced hot air city code A
Central air
Yes
Exterior condition
Average city code 4
Interior condition
New / rehabbed city code 2
New / rehabbed
Quality grade
C+ assessor's grade
Zoning
RM1 city zoning code
Zoning appeals
1 OPEN · Granted · 2017

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

Block context

1700 block of Mifflin St. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 1725 Mifflin St  ·  1729 Mifflin 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.

Joseph SwitzerInactive

Rental · Initial issue date Aug 16, 2023 · Terminal license date Oct 14, 2024

GUY Y ALBALANCYInactive

Rental · Initial issue date Sep 5, 2013 · Terminal license date Apr 29, 2016

D & M FLORIDA INVESTMENT LLCInactive

Rental · Initial issue date Aug 28, 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 31 dated rows
  1. License terminal eventJoseph Switzer: Rental landlord or residential registration marked inactive

    License 931011 · Inactive

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

  2. License issue eventJoseph Switzer: Rental landlord or residential registration initially issued

    License 931011 · Inactive

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

  3. Recorded transfer$519K transfer

    2021

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

    Case 539365 · PASSED

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

  5. PermitElectrical

    Permit 1025835 · COMPLETED

    INSTALL NEW FIRE ALARM SYSTEM AS PER ENGINEERING DRAWING, NEC 2008 AND 2007 NFPA 72 (SOUTH DIST)

  6. PermitMajor alteration

    Permit 954050 · COMPLETED

    LEVEL 2 ALTERATION TO COMPLIMENT PREVIOUS PERMITS 869782 & 895218 TO RENOVATE KITCHENS & BATHROOM CABINETS AND FINISHES IMPROVE CODE COMPLIANT FIRE RATED ASSEMBLEES BY LAMINATING 5/8 FR DRYWALL TO 1ST AND 2ND FLOOR CEILINGS AND STAIRWELL WALLS REPLACE MISC WINDOWS WITH SAME SIZE AS PER EZ STANDARD LIMITED COMMERCIAL ALTERATIONS & REPAIRS INFO-

  7. PermitMechanical

    Permit 954055 · COMPLETED

    INSTALL 3 NEW HVAC SYSTEMS EACH SYSTEM COMPLETELY WITHIN THE UNIT AS FOLLOWS: UNIT 1 (BSTM & 1ST FLOOR) 80%-60K &1.5T AC / UNIT 2 REAR MINISPLIT UNIT 3 (2ND FRT AND 3RD FLOOR FRONT 90%- 70K & 1.5T AC OUTDOOR UNITS IN REAR YARD. INSTALLED AS PER MANUFACTURER'S INSTRUCTIONS, FUEL GAS CODE AND EZ STANDARDS CONTRACTOR RESPONISBLE FOR CONDITION AND CAPACITY OF MASONRY CHIMNEY CELLER HAS ALL 3 EXT'G HOT WATER HEATERS

  8. InvestigationBP_BLDG

    Case 671595 · PASSED

    The cited inspection visit was marked passed.

  9. PermitSuppression

    Permit 940658 · COMPLETED

    FOR THE INSTALLATION OF A TWO (2) INCH FIRE SERVICE LINE WITH A TWO (2) INCH BACKFLOW PREVENTER AND AUTOMATIC FIRE SUPPRESSION SYSTEM AS PER NFPA 13 AND NFPA 13R. ALL WORK SHALL BE DONE IN ACCORDANCE WITH APPROVED PLANS/HYDRAULIC CALCULATIONS.

  10. ViolationPENALTY- NO PLUMB PERM INFO

    Case 671595 · Violation 4934283 · Code A-901.13/3 · COMPLIED

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

  11. ViolationWORKMANLIKE- PLUMBING CODE

    Case 671595 · Violation 4934280 · Code A-104.1/4 · COMPLIED

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

  12. ViolationPERMP- INST NEW PLUMBING

    Case 671595 · Violation 4934281 · Code A-301.1/54 · COMPLIED

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

  13. ViolationSTOP WORK ORDER

    Case 671595 · Violation 4934282 · Code A-504.1/1 · COMPLIED

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

  14. InvestigationBP_BLDG

    Case 671595 · FAILED

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

  15. PermitElectrical

    Permit 932343 · COMPLETED

    INSTALL 200AMP SERVICE WITH 4-GANG METER SOCKET, HOUSE PANEL 60AMP AND 3-100AMP SUB PANEL AND PUT HALLWAY LIGHTS ON HOUSE PANEL AS PER NEC 2008 SOUTH DISTRICT

  16. PermitAdministrative

    Permit 895218 · COMPLETED

    FOR THE AMENDMENT OF PREVIOUSLY APPROVED BUILDING PERMIT #869782 TO INCLUDE THE INTERIOR RENOVATION OF THE EXISTING RESIDENTIAL UNITS. NO CHANGE TO BUILDING HEIGHT OR AREA. ORIGINAL PERMIT APPROVED FOR LEVEL II ALTERATIONS TO INCLUDE INTERIOR FIT OUT OF A PREVIOUSLY VACANT UNIT INTO A RESIDENTIAL UNIT WITHIN AN EXISTING STRUCTURE, CHANGING THE OCCUPANCY FROM AN R-3 TO AN R-2 OCCUPANCY. BUILDING TO BE FULLY SPRINKLERED. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN PROFESSIONAL PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS REQUIRED FOR ALL OTHER WORK.

  17. PermitMajor alteration

    Permit 869782 · COMPLETED

    FOR LEVEL II ALTERATIONS TO INCLUDE INTERIOR FIT OUT OF A PREVIOUSLY VACANT UNIT INTO A RESIDENTIAL UNIT WITHIN AN EXISTING STRUCTURE, CHANGING THE OCCUPANCY FROM AN R-3 TO AN R-2 OCCUPANCY. BUILDING TO BE FULLY SPRINKLERED. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN PROFESSIONAL PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS REQUIRED FOR ALL OTHER WORK.

  18. PermitUse

    Permit 807744 · COMPLETED

    APPLICATION FOR LEGALIZATION OF AN EXISTING (3) THREE FAMILY DWELLING AT THE PROPERTY. THE PROPERTY IS LOCATED IN THE RM-1 ZONING DISTRICT AND IS APPROVED FOR A TWO-FAMILY DWELLING PER ZONING USE PERMIT NO. 160599.

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

    Case 539365 · 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. AppealZoning board appeal

    Appeal 31770 · OPEN · Granted

    Related permit 807744 · PERMIT FOR AN INCREASE FROM TWO (2) FAMILY HOUSEHOLD LIVING TO THREE (3) FAMILY HOUSEHOLD LIVING (MULTI-FAMILY) IN AN EXISTING STRUCTURE

  21. InvestigationBP_BLDG

    Case 539365 · CLOSED

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

  22. InvestigationBP_BLDG

    Case 539365 · FAILED

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

  23. ViolationPERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)

    Case 539365 · Violation 4562526 · Code A-301.1/4 · COMPLIED

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

  24. ViolationPENALTY- NO BLDG PERM INFO

    Case 539365 · Violation 4562529 · Code A-901.13/1 · COMPLIED

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

  25. ViolationSWO- CONSTR W/O BLDG PERMIT (Stop-work order for construction without a building permit)

    Case 539365 · Violation 4562528 · Code A-504.1/3 · COMPLIED

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

  26. ViolationPERMB- INT DEMOL WALLS ETC

    Case 539365 · Violation 4562527 · Code A-301.1/7 · COMPLIED

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

  27. InvestigationBP_BLDG

    Case 539365 · FAILED

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

  28. License terminal eventGUY Y ALBALANCY: Rental landlord or residential registration marked inactive

    License 604462 · Inactive

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

  29. License issue eventGUY Y ALBALANCY: Rental landlord or residential registration initially issued

    License 604462 · Inactive

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

  30. License terminal eventD & M FLORIDA INVESTMENT LLC: Rental landlord or residential registration marked inactive

    License 572460 · Inactive

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

  31. License issue eventD & M FLORIDA INVESTMENT LLC: Rental landlord or residential registration initially issued

    License 572460 · Inactive

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

Where this comes from

Methodology & freshness

This report was assembled Jul 26, 2026, 12:53 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)