2026 assessment
$1.8M
OPA value, not a listing price
Property report
3809 Walnut St
4,662 sqftRSA3built 1975
Property at a glanceSchool
Trs Univ Of Penn
2027 published assessment
$1.8M
Future roll, not the current tax bill
Location
3800 block of Walnut St
ZIP 19104
Neighborhood area
University City · West Powelton
Approximate · based on ZIP 19104
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 $1,832,800. It is not yet the billed-year tax basis.
- OPA assessment · 2016$1.7M 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$1.7M 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$1.8M 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$1.8M 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$1.8M 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$1.8M 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$1.8M 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$1.8M 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$1.8M 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$1.8M 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$1.8M 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$1.8M 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 · 2009-05-22Fast form buildingThis 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 · 2012-01-04AlterationThis 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 · 2019-03-07DemolitionThis permit category usually covers partial or complete removal 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 · 2019-05-20Addition and/or AlterationThis 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 · 2019-06-20SuppressionThis 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 · 2019-07-16New ConstructionThis 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 · 2019-07-29ElectricalThis 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 · 2019-08-16PlumbingThis 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 ↗
- Certification · 2022-01-05Fire Alarm CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Certification · 2022-01-26Special Hazards CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Certification · 2023-01-05Fire Alarm CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Certification · 2024-01-04Fire Alarm CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Certification · 2024-01-04Sprinkler CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Certification · 2025-01-03Fire Alarm CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Certification · 2025-01-03Sprinkler CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Certification · 2026-01-06Fire Alarm CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Certification · 2026-01-06Sprinkler CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Appeal · 2019-02-14Building standards appealA challenge or request reviewed through a City appeals process. Filing an appeal does not show who prevailed; read the decision, conditions, and related permit or violation.How Philadelphia L&I appeals work ↗
Property assessmentAssessmentAppealPermitCertification
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 record18 events · exact dates, newest first
- CertificationFire Alarm Certification
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- CertificationSpecial Hazards Certification
- CertificationFire Alarm Certification
- PermitPlumbing
- PermitElectrical
- PermitNew Construction
- PermitSuppression
- PermitAddition and/or Alteration
- PermitDemolition
- AppealBuilding standards appeal
- PermitAlteration
- PermitFast form building
Verify the public record
Property tax
$0/year estimated property tax
2026 taxable assessment $0 × 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 $1,832,800. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 7735700042026 OPA shows a zero or de minimis taxable assessment. The open assessment split does not establish the exemption's legal basis, continuing eligibility, or treatment after a transfer.
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
Not a house
School. OPA shows a full or near-full assessment exemption whose basis must be verified. A $0 assessment-based estimate does not prove the live Tax Center account has no prior-period balance or other charges.
What it is
School
School 4 Sty Masonry
Owner
Trs Univ Of Penn
Public / institutional
$ / sq ft
$393
above the $151 median for 7,668 commercial parcels citywide
Corridor
36th Street and vicinity
city commercial corridor
Interior area
4,662 sqft
Lot size
2,933 sqft
Built
1975
Zoning
RSA3
Recorded owner
Who's behind it
Trs Univ Of Penn · corporate / LLC owner
• Owns 108 properties across Philadelphia under this name, assessed at $1.4B combined
• Tax bills mail to 3451 Walnut St, Philadelphia PA, 19104
Block context
3800 block of Walnut St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 3811 Walnut St · 3805-07 Walnut 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.
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 18 dated rows
- CertificationFire Alarm Certification
Certification BC-2026-004574 · Certified
Expires 2027-01-06
- CertificationSprinkler Certification
Certification BC-2026-001698 · Certified
Expires 2027-01-06
- CertificationFire Alarm Certification
Certification BC-2025-003586 · Certified
Expires 2026-01-03
- CertificationSprinkler Certification
Certification BC-2025-000254 · Certified
Expires 2026-01-03
- CertificationFire Alarm Certification
Certification BC-2024-004197 · Certified
Expires 2025-01-04
- CertificationSprinkler Certification
Certification BC-2024-000636 · Certified
Expires 2025-01-04
- CertificationFire Alarm Certification
Certification BC-2023-002205 · Certified
Expires 2024-01-05
- CertificationSpecial Hazards Certification
Certification BC-2022-001018 · Certified
Expires 2023-01-26
- CertificationFire Alarm Certification
Certification BC-2022-001172 · Certified
Expires 2023-01-05
- PermitPlumbing
Permit 989545 · COMPLETED
ALTERATIONS TO AN EXISTING STRUCTURE FOR USE AS UNIVERSITY OFFICE AND CLASSROOMSRENOVATIONS FOR BASEMENT 1,2,3 FLOORS. INSTALL NEW FIXTURES. 3 LAVS, 3 WC, 1 FD, 1 HOT WATER HEATER.
- PermitElectrical
Permit 989154 · COMPLETED
NEW BRANCH WIRING, LIGHTING, MECHANICAL POWER AS PER 2017 NEC. INSTALL FIRE ALARM AS PER NFPA 72. (WEST DIST)
- PermitNew Construction
Permit 982979 · Expired
FOR THE INSTALLATION OF NEW HVAC EQUIPMENT, DUCTWORK AND DIFFUSERS PER APPROVED PLAN.
- PermitSuppression
Permit 987469 · COMPLETED
EZ PERMIT SPRINKLER RELOCATION (NFPA 13)- FOR THE RELOCATION OF SPRINKLER HEADS AS PER ATTACHED STANDARDS. DEVIATIONS FROM THESE STANDARDS REQUIRE SUBMISSION OF CONSTRUCTION AND SITE PLANS.
- PermitAddition and/or Alteration
Permit 966042 · Issued
FOR LEVEL III ALTERATIONS TO AN EXISTING STRUCTURE FOR USE AS UNIVERSITY OFFICE AND CLASSROOMS THROUGHOUT THE BUILDING. BUILDING IS SPRINKLERED IN ACCORDANCE WITH NFPA 13. SCOPE OF WORK APPROVED PER BBS VARIANCE CASE NO. 36416 UNDER AP#934330. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS TO BE OBTAINED FOR ALL OTHER WORK.
- PermitDemolition
Permit 949387 · COMPLETED
INTERIOR DEMOLITION THROUGHOUT AN EXISTING THREE-STORY HIGHER EDUCATION BUILDING (CREATIVE WRITING) AS PER APPROVED PLANS.
- AppealBuilding standards appeal
Appeal 36416 · OPEN
Related permit 934330 · ON 01/16/2019, THE DEPARTMENT OF LICENSES AND INSPECTIONS ISSUED A NOTICE OF REFUSAL FOR APPLICATION #934330.
- PermitAlteration
Permit 381243 · EXPIRED
REMOVE & REPLACE SLATE SHINGLE ROOF.
- PermitFast form building
Permit 217119 · COMPLETED
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 26, 2026, 2:53 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)