House report
1840 Mifflin St
3 bd1 ba2 stories1,344 sqftRM1built 1920
Owner-occupancy signal
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.
- OPA assessment · 2016$109K 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$109K 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$109K 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$268K 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$288K 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$288K 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$288K 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$305K 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$305K 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$329K 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$329K 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$316K 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 · 2010Deed / sale $4KA 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 · 2011Deed / sale $129KA 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 · 2013Deed / sale $170KA 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 · 2010-05-27Major 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 · 2010-05-27ZoningThis 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 · 2010-11-10PlumbingThis 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 · 2011-01-10ElectricalThis 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 ↗
- Permit · 2011-04-18MechanicalThis 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 ↗
- L&I violation · 2008-05-30VACANT 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 · 2008-05-30VACANT PROP STANDARD (likely: vacant-property enforcement standard)A legacy L&I label associated with vacant-property requirements. It may concern licensing, securing, or maintaining a vacant structure; the notice and cited code control, and this row alone does not prove the property is vacant now.Read Philadelphia Code §9-3905 ↗
- L&I violation · 2008-05-30LICENSE-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 ↗
- Inspection · 2008-05-30BRU INSPA 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 ↗
- Inspection · 2006-01-26HCEU 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 · 2007-05-09HCEU 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 · 2011-05-05BRU INSPA 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 ↗
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.
- Deed / saleDeed / sale $170K
- InspectionBRU INSP
- PermitMechanical
- PermitElectrical
- Deed / saleDeed / sale $129K
- PermitPlumbing
- PermitMajor alteration
- PermitZoning
- Deed / saleDeed / sale $4K
- L&I violationVACANT BLDG UNSECURED COUNT
- L&I violationVACANT PROP STANDARD (likely: vacant-property enforcement standard)
- L&I violationLICENSE-VAC RES BLDG (vacant residential building license required)
- InspectionBRU INSP
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$4,598/year estimated property tax
2026 taxable assessment $328,500 × 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 $316,100. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 4810678002026 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.
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
1800 block of Mifflin St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1838 Mifflin St · 1836 Mifflin St
L&I licenses checked through Jul 25, 2026
No business or residential license records
No business license or residential registration matched this OPA parcel in the latest City data.
Open every source row 15 dated rows
- Recorded transfer$170K transfer
2013
- InvestigationBRU INSP
Case 162851 · PASSED
The cited inspection visit was marked passed.
- PermitMechanical
Permit 336303 · COMPLETED
INSTALL 1 HVAC UNIT (SFD)
- PermitElectrical
Permit 320116 · COMPLETED
ENTIRE REWIRE OF SFD AS PER 2008 NEC CODE, INSTALLING A 200 AMP SERVICE COMPLETE
- Recorded transfer$129K transfer
2011
- PermitPlumbing
Permit 310558 · COMPLETED
RE-ROUGH BATHROOM (3-PIECE). KITCHEN SINK, CURB TRAP/FRESH AIR INLET AND MAIN DRAIN
- PermitMajor alteration
Permit 279478 · COMPLETED
RENOVATIONS TO INCLUDE REMOVE AND REPLACE SECOND FLOOR BAY 5'9X14'2 SAME SIZE AND HEIGHT.
- PermitZoning
Permit 281122 · COMPLETED
RECONSTRUCT REAR BAY
- Recorded transfer$4K transfer
2010
- ViolationVACANT BLDG UNSECURED COUNT
Case 162851 · Violation 1272818 · Code PM-306.2/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT PROP STANDARD (likely: vacant-property enforcement standard)
Case 162851 · Violation 1272817 · Code PM-306.0/1 · COMPLIED
A legacy L&I label associated with vacant-property requirements. It may concern licensing, securing, or maintaining a vacant structure; the notice and cited code control, and this row alone does not prove the property is vacant now. 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 162851 · Violation 1272816 · 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.
- InvestigationBRU INSP
Case 162851 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 63318 · 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.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 63318 · 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
- 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 26, 2026, 12:05 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)
