2026 taxable assessment $309,000 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $417,700; it is not the 2026 billed-year value.
House report
531 Mifflin St
3 bd · 2 ba · 2 stories · 1,192 sqft · RSA5 · built 1915
Owner-occupancy signal · assessed $409K (2026) · 2027 OPA assessment $418K · sold 5×. On the 500 block of Mifflin St.
BlockReport AI · cited public records
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Property summary
Assessment$409,0002026 OPA assessment · 2027: $417,700
Last sale$423KRecorded 2026
Est. tax bill$4,325/year2026 OPA · Homestead-adjusted
Tax delinquencyNo 2022 matchNot proof account is current
Permits6Every fetched City permit
Violations0 open18 historical across 6 cases
“Open” reflects records available then historical records keep their source dates estimates are labeled
Question or correct this record
BlockReport can explain a discrepancy, but it cannot rewrite an official City record. Use the agency that owns the underlying fact:
Property tax
The estimate, live balance, and back-tax record are different.
BlockReport can calculate the annual tax from the City’s taxable assessment. Payments, credits, interest, and a current amount due live separately in Philadelphia Tax Center.
A Tax Center balance is net of bills, payments, credits, interest, and adjustments. A credit—or an amount due—is not automatically “back taxes.”
OPA 0114156002026 OPA removes $100,000 from the taxable assessment through the owner-occupant exemption.
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.”
What stands out
From the public recordPermit between transfers
Record summary$159K transfer in 2018; plumbing permit in 2018; $423K transfer in 2026 (+464% between recorded amounts).
View supporting records →What to do with this
The record, translated into moves — what a buyer, the owner, and a landlord would each want to check next under Philadelphia's actual rules.
If you’re buying
Built 1915: lead rules apply
Federal law requires a lead-paint disclosure at sale for any pre-1978 home. If it will be rented, Philadelphia also requires a lead-safe or lead-free certificate before a rental license can issue.
Zoned RSA5: one household by right
Single-family rowhouse (the classic Philly row). Converting to a duplex or apartments needs a use variance the zoning board rarely grants — Pennsylvania courts require a physical hardship of the lot itself, and economics alone do not qualify.
Derived from the fetched property records and linked City guidance as of 2026. Assessment treatment is not a substitute for an exemption approval, live balance, title report, license, occupancy certificate, or inspection. Informational only — not legal, tax, or investment advice.
Assessment and tax history
Every fetched annual City assessment for this house, compared with its block and ZIP. The figures show assessment change, the billed-year tax estimate, dated tax records, and recorded transfers. They do not estimate market appreciation or investment return.
Assessed value
$409,000
2026 billed-year assessment · 2027: $417,700 · built 1915
Price / sq ft
$350
block $224 · above block
Assessment change
+334%
+14%/yr since 2016 · 2027 +2% vs 2026
Est. tax bill / yr
$4,325
1.06% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Times sold
5
Assessment vs. the block and ZIP · every dated City record marked on the line
- OPA assessment · 2016$96K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2017$96K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2018$96K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2019$87K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2020$94K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2021$94K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2022$94K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2023$249K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2024$249K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2025$409K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2026$409K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2027$418K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- Deed / sale · 2018Deed / sale $159KA recorded real-estate document or transfer event. The amount and date can be useful history, but the underlying deed and transfer-tax filing control the parties, consideration, and legal effect.How to read the recorded document ↗
- Deed / sale · 2019Deed / sale $380KA recorded real-estate document or transfer event. The amount and date can be useful history, but the underlying deed and transfer-tax filing control the parties, consideration, and legal effect.How to read the recorded document ↗
- Deed / sale · 2026Deed / sale $423KA recorded real-estate document or transfer event. The amount and date can be useful history, but the underlying deed and transfer-tax filing control the parties, consideration, and legal effect.How to read the recorded document ↗
- Permit · 2007-05-16AlterationThis permit category usually covers construction, repair, alteration, addition, or occupancy work. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2017-06-30Major alterationA broad legacy permit work category for a substantial building alteration. It can include changed layouts, partitions, fixtures, finishes, structural work, or occupancy-related work, but only the approved scope and plans say what this permit actually authorized; separate trade permits may be required.What Philadelphia building permits can cover ↗
- Permit · 2018-09-18PlumbingThis permit category usually covers water, drainage, fixtures, or other plumbing work. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2019-05-22Zoning/useThis permit category usually covers the property’s allowed use, dimensions, occupancy, or site configuration. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2019-05-22Major alterationA broad legacy permit work category for a substantial building alteration. It can include changed layouts, partitions, fixtures, finishes, structural work, or occupancy-related work, but only the approved scope and plans say what this permit actually authorized; separate trade permits may be required.What Philadelphia building permits can cover ↗
- Inspection · 2019-05-22PRECOURT (likely: pre-court compliance inspection)A follow-up before or during enforcement escalation; confirm the case sequence in the City file.What Philadelphia inspections check ↗
- Permit · 2019-07-09ElectricalThis permit category usually covers electrical installation, alteration, replacement, or repair. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- L&I violation · 2010-10-25LICENSE-RES SFD/2FDA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2013-04-11LICENSE-VAC RES BLDG (vacant residential building license required)This usually records a requirement to obtain a Vacant Structure License for an unoccupied residential building. Check later license and compliance rows because it does not establish present vacancy or an unresolved violation.How the City licenses vacant residential property ↗
- L&I violation · 2013-05-23VAC PROP REPLAC WIN/DRS 80%A dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2013-03-07VACANT BLDG UNSECURED COUNTA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2014-05-01EXT A-GRADINGA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2014-05-01VAC PROP REPLAC WIN/DRS 80%A dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2014-05-01DRAINAGE-AFFECTING ADJ/PROPA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2014-05-01LICENSE-VAC RES BLDG (vacant residential building license required)This usually records a requirement to obtain a Vacant Structure License for an unoccupied residential building. Check later license and compliance rows because it does not establish present vacancy or an unresolved violation.How the City licenses vacant residential property ↗
- L&I violation · 2017-11-30DOOR AND WINDOW VACANTA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2017-11-30VACANT STRUCTURE LICENSEA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2017-11-30VACANT STRUCTURE AND LANDA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2017-11-30EXTERIOR STRUCTURE DOORSA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2017-11-30EXTERIOR STRUCTURE WALLSA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2017-11-30EXTERIOR STRUCT DEC FEATURESA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- Inspection · 2017-11-30HCEU INSP (Housing Code Enforcement Unit inspection)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.What Philadelphia inspections check ↗
- L&I violation · 2018-02-22BLDG PERMIT REQUIREDA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2018-02-22WORKMANLIKE- BUILDING CODEA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2018-02-22PERMB- WORK NOT SAME AS PERMITA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2018-02-22DENIED ACCESS INSP BLDG PERMITA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- Inspection · 2010-11-24HCEU INSP (Housing Code Enforcement Unit inspection)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.What Philadelphia inspections check ↗
- Inspection · 2012-09-26PRECOURT (likely: pre-court compliance inspection)A follow-up before or during enforcement escalation; confirm the case sequence in the City file.What Philadelphia inspections check ↗
- Inspection · 2013-05-31HCEU INSP (Housing Code Enforcement Unit inspection)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.What Philadelphia inspections check ↗
- Inspection · 2013-05-31PRECOURT (likely: pre-court compliance inspection)A follow-up before or during enforcement escalation; confirm the case sequence in the City file.What Philadelphia inspections check ↗
- Inspection · 2014-08-14HCEU INSP (Housing Code Enforcement Unit inspection)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.What Philadelphia inspections check ↗
- Inspection · 2014-12-05PRECOURT (likely: pre-court compliance inspection)A follow-up before or during enforcement escalation; confirm the case sequence in the City file.What Philadelphia inspections check ↗
- Inspection · 2015-02-02PRECOURT (likely: pre-court compliance inspection)A follow-up before or during enforcement escalation; confirm the case sequence in the City file.What Philadelphia inspections check ↗
- Inspection · 2018-01-29HCEU INSP (Housing Code Enforcement Unit inspection)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.What Philadelphia inspections check ↗
- Inspection · 2018-05-31BP_BLDGA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- License · 2015-05-12Vacant Residential Property / LotA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- License · 2016-08-24Vacant Residential Property / LotA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
Property assessmentBlock median & rangeZIP 19148 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 record40 events · exact dates, newest first
- Deed / saleDeed / sale $423K
- PermitElectrical
- PermitZoning/use
- PermitMajor alteration
- InspectionPRECOURT (likely: pre-court compliance inspection)
- Deed / saleDeed / sale $380K
- PermitPlumbing
- InspectionBP_BLDG
- L&I violationBLDG PERMIT REQUIRED
- L&I violationWORKMANLIKE- BUILDING CODE
- L&I violationPERMB- WORK NOT SAME AS PERMIT
- L&I violationDENIED ACCESS INSP BLDG PERMIT
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- Deed / saleDeed / sale $159K
- L&I violationDOOR AND WINDOW VACANT
- L&I violationVACANT STRUCTURE LICENSE
- L&I violationVACANT STRUCTURE AND LAND
- L&I violationEXTERIOR STRUCTURE DOORS
- L&I violationEXTERIOR STRUCTURE WALLS
- L&I violationEXTERIOR STRUCT DEC FEATURES
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- PermitMajor alteration
- LicenseVacant Residential Property / Lot
- LicenseVacant Residential Property / Lot
- InspectionPRECOURT (likely: pre-court compliance inspection)
- InspectionPRECOURT (likely: pre-court compliance inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- L&I violationEXT A-GRADING
- L&I violationVAC PROP REPLAC WIN/DRS 80%
- L&I violationDRAINAGE-AFFECTING ADJ/PROP
- L&I violationLICENSE-VAC RES BLDG (vacant residential building license required)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionPRECOURT (likely: pre-court compliance inspection)
- L&I violationVAC PROP REPLAC WIN/DRS 80%
- L&I violationLICENSE-VAC RES BLDG (vacant residential building license required)
- L&I violationVACANT BLDG UNSECURED COUNT
- InspectionPRECOURT (likely: pre-court compliance inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- L&I violationLICENSE-RES SFD/2FD
- PermitAlteration
The paper trail
Permit between transfers$159K transfer in 2018; plumbing permit in 2018; $423K transfer in 2026 (+464% between recorded amounts).
- 2017 6 L&I violationsL&IInspection failedL&I visit
- 2018 $159KTransfer4 L&I violationsL&IL&I: 2 failed, 1 passedL&I visitPlumbingPermit
- 2019 Zoning/usePermitMajor alterationPermit$380KTransferElectricalPermitInspection passed ×2L&I visit
- 2026 $423KTransfer
Records behind the chart
Browse the source ledger
The chart above is the primary timeline. This drawer preserves every underlying dated row and its filed status for source-level review.
Browse 43 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- Recorded transfer$423K transfer
2026
- PermitElectrical
Permit 991806 · COMPLETED
100 AMP SERVICE AND FISHING OF WALLS ONLY LIGHTS, OUTLETS, SWITCHES SMOKES AND CO'S AS PER 2014 NEC CODE
- PermitZoning/use
Permit 965241 · COMPLETED
TO CLEAR VIOLATION #622890 & LEGALIZE 3'0 X 11'8" OVERHANG AT REAR OF 2ND FLOOR CONSTRUCTED BY PREVIOUS OWNER.
- PermitMajor alteration
Permit 965247 · COMPLETED
TO CLEAR VIOLATION #622890 & LEGALIZE 3'0X11'8" OVERHANG AT REAR OF 2ND FLOOR CONSTRUCTED BY PREVIOUS OWNER.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 622890 · PASSED
A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 429011 · PASSED
A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.
- Recorded transfer$380K transfer
2019
- PermitPlumbing
Permit 911317 · COMPLETED
REPLACE CURB TRAP & FAI PA20182603867 (COMMERCIAL)"SELF-CERTIFICATION'S ARE NO LONGER PERMITTED" - "ALL EXCAVATIONS AND PLUMBING TRENCHES IN EXCESS OF 5 FEET IN DEPTH MUST HAVE APPROVED SHORING IN PLACE AT THE TIME OF INSPECTION"
- InvestigationBP_BLDG
Case 622890 · CLOSED
City marked the record closed; open the case for the closing reason.
- InvestigationBP_BLDG
Case 622890 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationBLDG PERMIT REQUIRED
Case 622890 · Violation 4691573 · Code A-501.1/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationWORKMANLIKE- BUILDING CODE
Case 622890 · Violation 4691570 · Code A-104.1/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationPERMB- WORK NOT SAME AS PERMIT
Case 622890 · Violation 4691571 · Code A-302.10/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationDENIED ACCESS INSP BLDG PERMIT
Case 622890 · Violation 4691572 · Code A-401.1/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 613986 · 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.
- Recorded transfer$159K transfer
2018
- ViolationDOOR AND WINDOW VACANT
Case 613986 · Violation 4522272 · Code PM15-304.19V · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT STRUCTURE LICENSE
Case 613986 · Violation 4522269 · Code 9-3905 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT STRUCTURE AND LAND
Case 613986 · Violation 4522270 · Code PM15-301 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXTERIOR STRUCTURE DOORS
Case 613986 · Violation 4522271 · Code PM15-304.15 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXTERIOR STRUCTURE WALLS
Case 613986 · Violation 4522273 · Code PM15-304.6 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXTERIOR STRUCT DEC FEATURES
Case 613986 · Violation 4522274 · Code PM15-304.8 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 613986 · 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.
- PermitMajor alteration
Permit 796311 · COMPLETED
INTERIOR ALTERATIONS TO INCLUDE DRYWALL, SHEET ROCK THROUGHOUT THE BATHROOM AND KITCHEN, NEW WINDOWS AND DOORS IN EXISTING OPENING. APPLICANT AGREES TO LIMIT THE CONSTRUCTION TO COMPLY WITH EZ PERMIT STANDARD FOR INTERIOR ALTERATIONS, DATED JANUARY 2011. DEVIATION FROM THE STANDARD WILL RESULT IN REVOCATION OF THIS PERMIT AND IMPOSITION OF FURTHER PENALTIES. SEPARATE PERMITS REQUIRED FOR PLUMBING, ELECTRICAL AND MECHANICAL WORK
- LicenseVacant Residential Property / Lot
License 712133 · Inactive
SHELLPOINT MORTGAGE SERVICES · Expires 2017-08-23 · Inactive 2017-10-22
- LicenseVacant Residential Property / Lot
License 664213 · Inactive
CYPREXX SERVICES LLC · Expires 2016-05-31 · Inactive 2016-07-30
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 429011 · 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.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 429011 · 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.
- ViolationEXT A-GRADING
Case 429011 · Violation 3461934 · Code PM-302.4/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVAC PROP REPLAC WIN/DRS 80%
Case 429011 · Violation 3461936 · Code PM-306.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationDRAINAGE-AFFECTING ADJ/PROP
Case 429011 · Violation 3461935 · Code PM-302.4/3 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationLICENSE-VAC RES BLDG (vacant residential building license required)
Case 429011 · Violation 3461933 · Code PM-102.4/2 · COMPLIED
This usually records a requirement to obtain a Vacant Structure License for an unoccupied residential building. Check later license and compliance rows because it does not establish present vacancy or an unresolved violation. City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 252752 · PASSED
A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 372110 · 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.
- ViolationVAC PROP REPLAC WIN/DRS 80%
Case 372110 · Violation 2814723 · Code PM-306.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 372110 · 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.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 372113 · 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.
- ViolationLICENSE-VAC RES BLDG (vacant residential building license required)
Case 372110 · Violation 2767997 · Code PM-102.4/2 · COMPLIED
This usually records a requirement to obtain a Vacant Structure License for an unoccupied residential building. Check later license and compliance rows because it does not establish present vacancy or an unresolved violation. City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT BLDG UNSECURED COUNT
Case 372113 · Violation 2735984 · Code PM-306.2/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 372113 · 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.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 252752 · 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.
- ViolationLICENSE-RES SFD/2FD
Case 252752 · Violation 2590426 · Code PM-102.3/1 · RESOLVE
- PermitAlteration
Permit 76467 · EXPIRED
REMOVE / REPLACE FRONT & REAR DOORS AND 5 WINDOWS SAME IN KIND.
What this record suggests
The City file documents 6 permits touching kitchen work, bathroom work, drywall / interior finishing, electrical work. 5 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
Informational only — not investment advice or a consumer report (FCRA).
The property, on paper
The city assessor's field record — the physical spec sheet behind the assessed number.
Bedrooms
3
Bathrooms
2
Stories
2
Interior
1,192 sqft
livable area
Lot
983 sqft
Basement
Full, finished
city code A
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
New / rehabbed
city code 2
New / rehabbed
Quality grade
C
assessor's grade
ABCDE
Zoning
RSA5
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 531 Mifflin St takes, at your price and your rate. Taxes start with an annual estimate from the City’s taxable assessment, not a current bill or balance; rent starts at the area median. Assessed value is not an asking price — set the price slider to the real one.
When this house last sold (2026) a 30-year mortgage ran about 6.6% — Freddie Mac's average that year.
Mortgage
—
P&I · 30-yr fixed
All-in monthly
—
+ taxes & insurance
Estimated cash needed
—
down + 4% planning allowance
Modeled cash flow
—
rent − shown costs · /mo
Modeled cap rate
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modeled NOI ÷ price
Modeled cash-on-cash
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modeled year-1 return
Scenario for orientation, not advice. Assumes a 30-year fixed loan, $1,400/yr insurance, 1% of price/yr maintenance, and buyer cash equal to the down payment plus 4%. Taxes use this parcel's taxable assessment, not a live Tax Center balance. Cash flow and returns exclude vacancy, management, utilities, HOA or condo fees, leasing costs, income tax, and unplanned capital work.
Block context
531 Mifflin St sits on the 500 block of Mifflin St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 529 Mifflin St · 533 Mifflin St
Where this comes from
- Assessment, spec sheet & owner — OPA Property Assessments, Office of Property Assessment
- Sales & deed history — Realty Transfer Tax records, Recorder of Deeds
- Permits, violations & inspections — L&I Property History · Atlas
- Tax delinquency snapshot · June 2022 — Real Estate Tax Delinquencies, Dept. of Revenue
- Historical tax ledger & liens · through 2016 — Real Estate Tax Balances, Dept. of Revenue
- Current property-tax balance — Verify with Philadelphia Revenue
- Zoning appeals — L&I & Zoning Board appeals
- Neighborhood income & rents — US Census ACS 5-year estimates
- Historical mortgage rates — Freddie Mac Primary Mortgage Market Survey, annual averages
- Imagery — Street photo © Google · Aerial © Esri, Maxar
Methodology & freshness
This report was assembled Jul 11, 2026, 1:37 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)