2026 assessment
$466K
OPA value, not a listing price
Industrial property report
4123-29 Whitaker Ave
15,015 sqftI2built 1922
Property at a glanceIndustrial building
Netherfield Road Associates LLC
2027 published assessment
$807K
Future roll, not the current tax bill
Location
4100 block of Whitaker Ave
ZIP 19124
Neighborhood area
Frankford · Juniata
Approximate · based on ZIP 19124
Assessment and City record timeline
The line tracks this property’s published City assessment. Markers show deeds, permits, inspections, licenses, violations, certifications, and appeals on their recorded dates. Select one to read the filing.
Assessments are tax-roll values, not sale prices or appraisals. OPA has published a 2027 assessment of $807,000. It is not yet the billed-year tax basis.
- OPA assessment · 2016$311K 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$311K 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$340K 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$375K 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$378K 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$378K 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$378K 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$451K 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$451K 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$466K 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$466K 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$807K 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 ↗
- Permit · 2022-03-24AlterationsThis 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 ↗
- License · 2021-12-20Mavuno LLC (Mavuno LLC): Food Manufacturer / Wholesaler business license initially issuedA 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 ↗
- License · 2005-01-28EVERITE MACHINE PRODUCTS: Hazardous Materials L&I license filing 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 · 2009-06-30EVERITE MACHINE PRODUCTS: Hazardous Materials L&I license filing 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 assessmentAssessmentPermitLicense
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 record4 events · exact dates, newest first
- PermitAlterations
- LicenseMavuno LLC (Mavuno LLC): Food Manufacturer / Wholesaler business license initially issued
- LicenseEVERITE MACHINE PRODUCTS: Hazardous Materials L&I license filing marked inactive
- LicenseEVERITE MACHINE PRODUCTS: Hazardous Materials L&I license filing initially issued
Verify the public record
Property tax
$6,516/year estimated property tax
2026 taxable assessment $465,500 × 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 $807,000. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 8845257002026 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.”
Property report
Industrial property
Industrial building, recorded in the City's industrial category. The public record and owner trail follow.
What it is
Industrial building
Ind Warehouse Masonry
Owner
Netherfield Road Associates LLC
$ / sq ft
$54
below the $70 median for 3,574 industrial parcels citywide
Interior area
15,015 sqft
Lot size
26,943 sqft
Built
1922
Zoning
I2
Recorded owner
Who's behind it
Netherfield Road Associates LLC · corporate / LLC owner
• Tax bills mail to 3936 Netherfield Rd, Philadelphia PA, 19129
Block context
4100 block of Whitaker Ave. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 4131r-63 Whitaker Ave · 4131-63 Whitaker Ave
L&I license dates · data through Jul 28, 2026
Business licenses at this address Latest pull
What L&I has registered at this OPA parcel, newest initial license date first.
Mavuno LLC (Mavuno LLC)Active
Food Manufacturer / Wholesaler · Initial issue date Dec 20, 2021 · Filed expiration Dec 19, 2026
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 4 dated rows
- PermitAlterations
Permit PP-2022-004637 · Expired
Replace 8x 6" cast iron curb trap, install new 6" cast iron FAI
- License issue eventMavuno LLC (Mavuno LLC): Food Manufacturer / Wholesaler business license initially issued
License 883750 · Active
License event. Registration does not prove present operation or storefront occupancy.
- License terminal eventEVERITE MACHINE PRODUCTS: Hazardous Materials L&I license filing marked inactive
License 285799 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventEVERITE MACHINE PRODUCTS: Hazardous Materials L&I license filing initially issued
License 285799 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
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
- Imagery: Street photo © Google · Aerial © Esri, Maxar
Methodology & freshness
This report was assembled Jul 28, 2026, 11:04 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)