2026 assessment
$403K
OPA value, not a listing price
Multi-family report
522 Mifflin St
4 bd3 ba3 stories2,177 sqftRSA5built 1915
Property at a glanceApartment building
Individual, other or unknown mailing address
ZIP 19148 area
Pennsport · Lower Moyamensing
500 block of Mifflin St
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.
- OPA assessment · 2016$177K 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$177K 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$177K 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$240K 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$260K 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$260K 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$260K 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$383K 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$383K 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$403K 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$403K 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$318K 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 · 2004Deed / sale $79KA 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 · 2010Deed / sale $195KA 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 · 2015-01-21Major 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 · 2015-02-17ElectricalThis 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 · 2019-05-29PlumbingThis 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 ↗
- L&I violation · 2015-02-11INSURANCE - POST CERTA 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 ↗
- License · 2011-03-24YAU D FONG (FANG AL L): Rental landlord or residential registration initially issuedA 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 · 2011-03-24GIMME SHELTER LLC: Rental landlord or residential registration marked inactiveA 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 · 2005-09-28GIMME SHELTER LLC: Rental landlord or residential registration initially issuedA 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 (Pennsport · Lower Moyamensing) medianAssessmentDeed / saleL&I violationPermitLicense
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 record9 events · exact dates, newest first
- PermitPlumbing
- PermitElectrical
- L&I violationINSURANCE - POST CERT
- PermitMajor alteration
- LicenseYAU D FONG (FANG AL L): Rental landlord or residential registration initially issued
- LicenseGIMME SHELTER LLC: Rental landlord or residential registration marked inactive
- Deed / saleDeed / sale $195K
- LicenseGIMME SHELTER LLC: Rental landlord or residential registration initially issued
- Deed / saleDeed / sale $79K
Flags: active rental license. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$5,645/year estimated property tax
2026 taxable assessment $403,300 × 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 $317,800. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 3920042002026 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
3
Stories
3
Interior
2,177 sqft
livable area
Lot
1,056 sqft
Basement
Full
city code D
Heat
Hot water / radiators
city code B
Central air
Yes
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
Average
city code 4
Above averageBelow average
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.
Block context
500 block of Mifflin St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 520 Mifflin St · 524 Mifflin St
L&I license dates · data through Jul 27, 2026
Business licenses at this address Latest pull
What L&I has registered at this OPA parcel, newest initial license date first.
No L&I business license is on record at this address in data through Jul 27, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
YAU D FONG (FANG AL L)Active
Rental · Initial issue date Mar 24, 2011 · Filed expiration Feb 28, 2027
GIMME SHELTER LLCInactive
Rental · Initial issue date Sep 28, 2005 · Terminal license date Mar 24, 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 9 dated rows
- PermitPlumbing
Permit 980526 · COMPLETED
NEW 5X4 CURB TRAP, INSTALLATION WILL COMPLY WITH PHILADELPHIA PLUMBING CODE 2004
- PermitElectrical
Permit 590884 · COMPLETED
INSTALL 15 OUTLETS,5 LIGHT SWITCHES,NEW LIGHT FIXTURES,AND SMOKE DETECTORS 120V (EXISTING PANEL NO CHANGES)PER 2008 NEC (MULTI FAMILY)
- ViolationINSURANCE - POST CERT
Case 585825 · Violation 3537995 · Code A-302.8/32 · CLOSEDCASE
City marked the case closed; that does not mean the original condition never existed.
- PermitMajor alteration
Permit 585825 · COMPLETED
LEVEL 1 ALTERATIONS ONLY TO AN EXISTING THREE FAMILY DWELLING.REPLACE NON FIRE RATED DRYWALL IN KITCHEN AND BATHROOM. NO PARTITIONS ALTERATIONS OR CHANGE IN LAYOUT ON THIS PERMIT. NO ALTERATIONS TO FIRE RATED ASSEMBLIES.REPLACE 4 WINDOWS IN EXITING OPENINGS AS EZ WINDOWS STANDARDS.
- License issue eventYAU D FONG (FANG AL L): Rental landlord or residential registration initially issued
License 528571 · Active
License event. Registration does not prove present operation or storefront occupancy.
- License terminal eventGIMME SHELTER LLC: Rental landlord or residential registration marked inactive
License 338887 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$195K transfer
2010
- License issue eventGIMME SHELTER LLC: Rental landlord or residential registration initially issued
License 338887 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$79K transfer
2004
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 28, 2026, 6:38 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)