2026 assessment
$709K
OPA value, not a listing price
House report
525 Brown St
3 bd2 ba2 stories1,260 sqftRSA5built 1960
Property at a glanceHouse
Owner-occupancy signal
ZIP 19123 area
Northern Liberties · Callowhill
500 block of Brown St
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$332K 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$332K 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$332K 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$315K 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$315K 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$315K 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$443K 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$443K 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$709K 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$709K 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$680K 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 · 2023Deed / sale $570KA 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 · 2017-03-02Major 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 · 2017-09-28MechanicalThis 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 · 2017-10-24PlumbingThis 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 · 2017-11-08ZoningThis 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 · 2018-01-24ElectricalThis 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 · 2018-02-20UseThis 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 · 2018-03-05Major 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 ↗
- L&I violation · 2017-06-13EXTERIOR AREA WEEDSA 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 · 2017-06-13HCEU 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 · 2017-07-19VACANT 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 · 2017-07-19EXTERIOR AREA WEEDSA 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 · 2017-07-19HCEU 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 · 2017-07-19HCEU 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 · 2018-10-30EXTERIOR AREA WEEDSA 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 · 2018-10-30HCEU 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 · 2019-12-11WORKMANLIKE- 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 ↗
- Inspection · 2017-08-25HCEU 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 · 2019-01-16HCEU 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 · 2019-12-26BP_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 ↗
- Inspection · 2020-08-06L&I investigationA 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 · 2018-10-29IDM Holdings 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 ↗
- License · 2023-12-27IDM Holdings 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 ↗
Property assessmentBlock median & rangeZIP 19123 (Northern Liberties · Callowhill) 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 record23 events · exact dates, newest first
- LicenseIDM Holdings LLC: Rental landlord or residential registration marked inactive
- Deed / saleDeed / sale $570K
- InspectionL&I investigation
- InspectionBP_BLDG
- L&I violationWORKMANLIKE- BUILDING CODE
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- L&I violationEXTERIOR AREA WEEDS
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- LicenseIDM Holdings LLC: Rental landlord or residential registration initially issued
- PermitMajor alteration
- PermitUse
- PermitElectrical
- PermitZoning
- PermitPlumbing
- PermitMechanical
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- L&I violationVACANT STRUCTURE AND LAND
- L&I violationEXTERIOR AREA WEEDS
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- L&I violationEXTERIOR AREA WEEDS
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- PermitMajor alteration
Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$8,521/year estimated property tax
2026 taxable assessment $608,700 × 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 $680,000. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 0561557162026 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.”
The property, on paper
OPA physical field record.
Bedrooms
3
Bathrooms
2
Stories
2
Interior
1,260 sqft
livable area
Lot
3,973 sqft
Basement
Full, finished
city code A
Heat
Forced hot air
city code A
Central air
Yes
Garage
2 spaces
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.
Block context
500 block of Brown St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 523 Brown St · 527 Brown St
L&I license dates · data through Jul 24, 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 24, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
IDM Holdings LLCInactive
Rental · Initial issue date Oct 29, 2018 · Terminal license date Dec 27, 2023
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 23 dated rows
- License terminal eventIDM Holdings LLC: Rental landlord or residential registration marked inactive
License 793013 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$570K transfer
2023
- InvestigationL&I investigation
Case 719986 · PASSED
The cited inspection visit was marked passed.
- InvestigationBP_BLDG
Case 719986 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationWORKMANLIKE- BUILDING CODE
Case 719986 · Violation 211982339 · Code A-104.1/1 · COMPLIED
Resolution: COMPLIED - OWNER REPAIR 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 661779 · 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.
- ViolationEXTERIOR AREA WEEDS
Case 661779 · Violation 4859075 · Code PM15-302.4 · 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 661779 · 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.
- License issue eventIDM Holdings LLC: Rental landlord or residential registration initially issued
License 793013 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- PermitMajor alteration
Permit 856336 · COMPLETED
INTERIOR ALTERATIONS TO INCLUDE DRYWALL, WINDOWS & DOORS IN EXISTING OPENINGS, TILE, AND FLOORING. 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.(SFD)
- PermitUse
Permit 852794 · COMPLETED
FOR A SINGLE FAMILY HOUSEHOLD LIVING
- PermitElectrical
Permit 847359 · COMPLETED
ON AN EXISTING SERVICE,REPLACE OUTLETS,SWITCHES AND SMOKES WITH NO ADDITIONAL WIRING AS PER 2008 NEC (CC DISTRICT)
- PermitZoning
Permit 828557 · COMPLETED
FOR THE LOT ADJUSTMENT TO CREATE TWO(2) LOTS ("PREMISES A" AND "PREMISES B") FROM ONE(1) OPA ACCOUNTS ( 525 BROWN STREET). SIZE AND LOCATION AS SHOWN IN THE APPLICATION.
- PermitPlumbing
Permit 826328 · COMPLETED
INSTALL 1 KITCHEN 1 DISHWASHER 2 TOILETS 2 VANITIES 2 BATHTUBS 1 WASHER THE INSTALLATION WILL COMPLY WITH THE PHILADELPHIA PLUMBING CODE 2004
- PermitMechanical
Permit 819999 · COMPLETED
INSTALL (1) HVAC SYSTEM WITH DUCTWORK. (SFD)
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 594715 · 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.
- ViolationVACANT STRUCTURE AND LAND
Case 594715 · Violation 4389733 · Code PM15-301 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXTERIOR AREA WEEDS
Case 594715 · Violation 4389734 · Code PM15-302.4 · 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 588427 · 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 594715 · 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.
- ViolationEXTERIOR AREA WEEDS
Case 588427 · Violation 4348337 · Code PM15-302.4 · 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 588427 · 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 763153 · EXPIRED
INTERIOR ALTERATIONS THROUGHOUT, TO INCLUDE DRYWALL THROUGHOUT, SHEETROCK, MOISTURE RESISTANT DRYWALL IN 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. NOTE: CONTRACTOR IS LISTED AS A "SOLE PROPRIETOR" AND HAS NO EMPLOYEES AND/OR WORKERS COMPENSATION INSURANCE - ALL SUBCONTRACTORS REQUIRE SEPARATE LICENSES AND INSURANCE SEPARATE PERMITS REQUIRED FOR PLUMBING, ELECTRICAL AND MECHANICAL WORK. NO OTHER WORK ALLOWED UNDER THIS PERMIT.
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 25, 2026, 6:00 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)