2026 assessment
$492K
OPA value, not a listing price
House report
1123 Leopard St
3 bd1,835 sqftRSA5built 2010
Property at a glanceHouse
Individual, other or unknown mailing address
ZIP 19123 area
Northern Liberties · Callowhill
1100 block of Leopard 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$426K 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$426K 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$426K 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$516K 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$533K 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$533K 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$533K 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$533K 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$533K 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$492K 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$492K 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$492K 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 ↗
- Land buy · 2010Land record $75KA land-record event associated with this parcel. Review the recorded instrument to determine whether it reflects a conveyance, parcel change, or another filing.How to read the recorded document ↗
- Deed / sale · 2019Deed / sale $457KA 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 · 2010-09-28MechanicalThis 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 · 2010-10-13PlumbingThis 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 · 2010-10-28SuppressionThis permit category usually covers fire-suppression systems or related life-safety 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 · 2010-10-28PlumbingThis 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 · 2010-11-09ElectricalThis 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 · 2010-12-08UNAPPROVED MAT'L OR ASSEMA 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 · 2010-12-08BP_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 ↗
- L&I violation · 2010-11-29UNAPPROVED MAT'L OR ASSEMA 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 · 2011-01-28BP_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 · 2010-09-16RICHARD & DONNA MENDELSON: 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 · 2019-04-29RICHARD & DONNA MENDELSON: 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 / saleLand buyL&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 record13 events · exact dates, newest first
- LicenseRICHARD & DONNA MENDELSON: Rental landlord or residential registration marked inactive
- Deed / saleDeed / sale $457K
- InspectionBP_BLDG
- L&I violationUNAPPROVED MAT'L OR ASSEM
- InspectionBP_BLDG
- L&I violationUNAPPROVED MAT'L OR ASSEM
- PermitElectrical
- PermitSuppression
- PermitPlumbing
- PermitPlumbing
- PermitMechanical
- LicenseRICHARD & DONNA MENDELSON: Rental landlord or residential registration initially issued
- Land buyLand record $75K
Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$6,884/year estimated property tax
2026 taxable assessment $491,800 × 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 $491,800. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 0570123232026 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
3
Interior
1,835 sqft
livable area
Lot
1,004 sqft
Basement
Partial
city code H
Central air
Yes
Garage
1 space
Exterior condition
Above average
city code 3
Above averageBelow average
Interior condition
Above average
city code 3
Above averageBelow average
Quality grade
B-
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
1100 block of Leopard St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1121 Leopard St · 1125 Leopard St
L&I license dates · data through Jul 25, 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 25, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
RICHARD & DONNA MENDELSONInactive
Rental · Initial issue date Sep 16, 2010 · Terminal license date Apr 29, 2019
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 13 dated rows
- License terminal eventRICHARD & DONNA MENDELSON: Rental landlord or residential registration marked inactive
License 514757 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$457K transfer
2019
- InvestigationBP_BLDG
Case 261017 · PASSED
The cited inspection visit was marked passed.
- ViolationUNAPPROVED MAT'L OR ASSEM
Case 261017 · Violation 1913453 · Code A-203.3/1 · RESOLVE
- InvestigationBP_BLDG
Case 261017 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationUNAPPROVED MAT'L OR ASSEM
Case 306000 · Violation 1911331 · Code A-203.3/1 · RESOLVE
- PermitElectrical
Permit 310543 · COMPLETED
WIRE SFD PER 2008 NEC;INSTALL 120V CIRCUITS,REFRIGERATOR,DISHWASHER,DISPOSAL,MICROWAVE, (2)KITCHEN GFCI'S. INSTALL 120V SMOKES. ALL RECEPS TAMPER RESISTANT. ALL BREAKERS- ARC FAULTS. INSTALL 200A SERVICE, 40 CKT PANEL AND GROUNDING.
- PermitSuppression
Permit 303145 · COMPLETED
INSTALLATION OF AN AUTOMATIC SPRINKLER SYSTEM
- PermitPlumbing
Permit 308695 · COMPLETED
NO LATERAL, SEWER AND WATER SERVICE OUTSIDE ONLY PA ONE CALL #2010-257-2910
- PermitPlumbing
Permit 306000 · COMPLETED
TO INSTALL HOUSE DRAIN WASTE LINE FOR 2 TOILET 2 LAVS 2 TUBS 1 LAUNDRY TUB 1 KITCHEN SINK 1 SHOWER
- PermitMechanical
Permit 303391 · COMPLETED
INSTALL ONE HVAC UNIT (SFD)
- License issue eventRICHARD & DONNA MENDELSON: Rental landlord or residential registration initially issued
License 514757 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Land recordLand record
2010
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, 4:22 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)