2026 assessment
$21K
OPA value, not a listing price
Land report
1850 S Allison St
Property at a glanceVacant lot
Individual owner on record
2027 published assessment
$12K
Future roll, not the current tax bill
Location
1800 block of S Allison St
ZIP 19143
Neighborhood area
Cedar Park · Kingsessing
Approximate · based on ZIP 19143
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 $12,400. It is not yet the billed-year tax basis.
- OPA assessment · 2016$3K 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$5K 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$5K 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$5K 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$5K 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$5K 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$5K 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$18K 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$18K 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$21K 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$21K 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$12K 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 ↗
- L&I violation · 2007-12-13CLIP VIOLATION NOTICEA 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 · 2007-12-13VACANT LOT KEEP CLEAN GET LICA 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 · 2013-08-27EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2013-08-27CLIP VIOLATION NOTICEA 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 · 2016-06-06CLIP VIOLATION NOTICEA 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 · 2016-06-06EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2017-03-01EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2017-03-01CLIP VIOLATION NOTICEA 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 · 2017-07-17EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2017-07-17CLIP VIOLATION NOTICEA 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 · 2018-04-10EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2018-04-10CLIP VIOLATION NOTICEA 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 · 2018-10-01EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2018-10-01CLIP VIOLATION NOTICEA 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 · 2020-02-03CLIP VIOLATION NOTICEA 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 · 2020-02-03EXT A-VACANT LOT CLEAN/MAINTAIA 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 ↗
Property assessmentAssessmentL&I violation
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.
Every dated record16 events · exact dates, newest first
- L&I violationCLIP VIOLATION NOTICE
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- L&I violationCLIP VIOLATION NOTICE
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- L&I violationCLIP VIOLATION NOTICE
- L&I violationVACANT LOT KEEP CLEAN GET LIC
Verify the public record
Property tax
$300/year estimated property tax
2026 taxable assessment $21,400 × 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 $12,400. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 5142132002026 taxable assessment equals the full assessed value.
Historical delinquency sources Record found
$5,442.63 was recorded for this parcel in Philadelphia's June 2022 delinquency snapshot for 1997–2021. That amount may have been paid, reduced, or increased since; it is not a current payoff figure.
$1,867.54 principal$2,274.85 interest$130.02 penalty$1,170.22 other charges
The snapshot’s 2022 context used $4,700 total assessment, $4,700 taxable, and $0 exempt/abated. Those historical fields can differ from today’s OPA exemption status.
A separate historical parcel ledger ending in 2016 records $4,010.28 and a lien entry. It is shown as historical context only.
1997$424.81 total · $121.65 principal · $209.84 interest · $8.52 penalty1998$411.90 total · $121.65 principal · $198.90 interest · $8.52 penalty1999$398.98 total · $121.65 principal · $187.95 interest · $8.52 penalty2000$386.06 total · $121.65 principal · $177.00 interest · $8.52 penalty2001$198.36 total · $60.82 principal · $83.02 interest · $4.26 penalty2002$191.90 total · $60.82 principal · $77.55 interest · $4.26 penalty2003$185.45 total · $60.82 principal · $72.08 interest · $4.26 penalty2004$178.98 total · $60.82 principal · $66.60 interest · $4.26 penalty2005$172.53 total · $60.82 principal · $61.13 interest · $4.26 penalty2006$166.06 total · $60.82 principal · $55.65 interest · $4.26 penalty2007$159.61 total · $60.82 principal · $50.18 interest · $4.26 penalty2008$166.11 total · $66.91 principal · $49.18 interest · $4.68 penalty2009$159.01 total · $66.91 principal · $43.16 interest · $4.68 penalty2010$151.89 total · $66.91 principal · $37.13 interest · $4.68 penalty2011$156.79 total · $73.53 principal · $34.19 interest · $5.15 penalty2012$153.80 total · $76.36 principal · $28.63 interest · $5.35 penalty2013$150.08 total · $79.11 principal · $22.54 interest · $5.54 penalty2014$73.61 total · $49.31 principal · $9.62 interest · $3.45 penalty2015$68.37 total · $49.31 principal · $5.18 interest · $3.45 penalty2016$55.98 total · $51.51 principal · $0.78 interest · $0.52 penalty
For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”
Land report
Vacant land
Vacant land. Deeds, ownership, zoning, and the public-source record follow.
$5K · Jun 2022 delinquency snapshot Historical lien entry · through 2016
What it is
Vacant lot
Vacant Land Reside < Acre
Owner
Individual owner on record
Individual name redacted
Lot size
679 sqft
Zoning
RSA5
Block context
1800 block of S Allison St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1848 S Allison St · 1852 S Allison St
L&I license dates · data through Jul 23, 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 23, 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 16 dated rows
- ViolationCLIP VIOLATION NOTICE
Case 723284 · Violation 5307332 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 723284 · Violation 5307333 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 657593 · Violation 4829800 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 657593 · Violation 4829799 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 628387 · Violation 4636631 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 628387 · Violation 4636630 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 594247 · Violation 4386843 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 594247 · Violation 4386842 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 574349 · Violation 4238196 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 574349 · Violation 4238195 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 537289 · Violation 4044527 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 537289 · Violation 4044528 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 399723 · Violation 2915845 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 399723 · Violation 2915844 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 138594 · Violation 770469 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT LOT KEEP CLEAN GET LIC
Case 138594 · Violation 770470 · Code PM-306.0/91 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
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 23, 2026, 3:07 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)