Property report

100-52 W School House Ln

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58,733 sqftRSA1built 1875

Property at a glanceSchool

Individual owner on record

2026 assessment
$4.2M OPA value, not a listing price
2027 published assessment
$4.2M Future roll, not the current tax bill
Neighborhood area
Germantown Approximate · based on ZIP 19144
From above · selected parcel outlined; choose a neighboring polygon to open it — imagery © Esri, Maxar
Open L&I record

2 violation rows marked OPEN in 1 active case

The actual City titles, code sections, case posture, and latest recorded inspections are shown here instead of only an aggregate count.

Open City history ↗
Case CF-2026-039711

Notice Of Violation

IN VIOLATION

Opened Apr 22, 2026 · Latest inspection FAILED · Jun 30, 2026

  • Suppression System Testing & MaintenanceF-903.5
  • Periodic TestingF-901.6.4

OPEN is the status in the fetched L&I file, not a new inspection by BlockReport. Read the notice for the cited condition and required correction, then verify the live case with L&I.

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 $4,184,800. It is not yet the billed-year tax basis.

$0$2.5M$5.0M$4.2M200720112015201920232027
Property assessmentAssessmentL&I violationAppealPermitInspectionLicenseCertification

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 record52 events · exact dates, newest first
  1. InspectionL&I investigation
  2. L&I violationSUPPRESSION SYSTEM TESTING & MAINTENANCE
  3. L&I violationPERIODIC TESTING
  4. InspectionL&I investigation
  5. CertificationFire Alarm Certification
  6. CertificationFire Alarm Certification
  7. CertificationSprinkler Certification
  8. CertificationFire Alarm Certification
  9. CertificationFire Alarm Certification
  10. PermitRoof Covering Replacement
  11. PermitAlterations
  12. CertificationFire Alarm Certification
  13. CertificationSprinkler Certification
  14. CertificationFire Escape Report
  15. CertificationFire Escape Report
  16. CertificationFire Escape Report
  17. CertificationFire Escape Report
  18. PermitElectrical
  19. PermitMechanical
  20. PermitAlterations
  21. PermitAddition and/or Alteration
  22. PermitDemolition
  23. LicenseDAVID RONNENBERG: Food Preparing and Serving (30+ SEATS) business license marked inactive
  24. LicenseDAVID RONNENBERG: Food Preparing and Serving (30+ SEATS) business license initially issued
  25. PermitZoning admin review
  26. PermitElectrical
  27. PermitAdministrative
  28. PermitSuppression
  29. PermitPlumbing
  30. PermitMechanical
  31. PermitMajor alteration
  32. PermitAddition
  33. PermitMajor alteration
  34. PermitDemolition
  35. PermitZoning/use
  36. AppealZoning board appeal
  37. PermitElectrical
  38. PermitElectrical
  39. PermitElectrical
  40. PermitElectrical
  41. PermitElectrical
  42. PermitElectrical
  43. PermitElectrical
  44. PermitElectrical
  45. PermitElectrical
  46. PermitElectrical
  47. PermitElectrical
  48. PermitElectrical
  49. PermitElectrical
  50. PermitElectrical
  51. PermitZoning
  52. PermitMechanical

Verify the public record

$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 $4,184,800. It is not the 2026 billed-year value.

Current City balanceCheck Tax Center

Payments, credits, interest, and the current amount due are maintained by the City.

OPA 775530500
Open Philadelphia Tax Center →Use “View period balance” to inspect each tax year.
Exemption classificationFull assessment exemption shown

2026 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.

2 open violations

What it is
School School 3 Sty Masonry
Owner
Individual owner on record Public / institutional
$ / sq ft
$71 below the $151 median for 7,668 commercial parcels citywide
Corridor
Central Germantown & Vicinity city commercial corridor
Interior area
58,733 sqft
Lot size
267,395 sqft
Built
1875
Zoning
RSA1

Block context

100 block of W School House Ln. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 156 W School House Ln  ·  162-64 W School House Ln

Business licenses at this address Latest pull

What L&I has registered at this OPA parcel, newest initial license date first.

Open the City record ↗
DAVID RONNENBERGInactive

Food Preparing and Serving (30+ SEATS) · Initial issue date Jan 13, 2014 · Terminal license date Jun 29, 2017

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 52 dated rows
  1. InvestigationL&I investigation

    Case CF-2026-039711 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  2. ViolationSUPPRESSION SYSTEM TESTING & MAINTENANCE

    Case CF-2026-039711 · Violation VI-2026-024067 · Code F-903.5 · OPEN

    The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.

  3. ViolationPERIODIC TESTING

    Case CF-2026-039711 · Violation VI-2026-024065 · Code F-901.6.4 · OPEN

    The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.

  4. InvestigationL&I investigation

    Case CF-2026-039711 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  5. CertificationFire Alarm Certification

    Certification BC-2026-011139 · Deficient

  6. CertificationFire Alarm Certification

    Certification BC-2025-022842 · Certified

    Expires 2026-08-22

  7. CertificationSprinkler Certification

    Certification BC-2025-011493 · Certified

    Expires 2026-02-13

  8. CertificationFire Alarm Certification

    Certification BC-2024-026529 · Certified

    Expires 2025-09-19

  9. CertificationFire Alarm Certification

    Certification BC-2025-006477 · Certified

    Expires 2025-09-19

  10. PermitRoof Covering Replacement

    Permit GM-2024-000892 · Expired

    **Existing Philadelphia Historic Property** For repair / replacement of roof covering(s) on existing roof(s) in accordance with the attached EZ Permit Re-Roofing Standard. Failure to comply with the attached EZ Permit Re-Roofing Standard shall result in revocation of this permit. Accepted per stamped/signed Phila. Historical Commission - Approval Documentation Form. Roofing material is GAF shingles in Hickory color matching existing.

  11. PermitAlterations

    Permit PP-2023-017310 · Expired

    REPAIR/REPLACE 2" BACKFLOW DEVICE

  12. CertificationFire Alarm Certification

    Certification BC-2023-021501 · Certified

    Expires 2024-09-07

  13. CertificationSprinkler Certification

    Certification BC-2023-005168 · Certified

    Expires 2024-02-14

  14. CertificationFire Escape Report

    Certification BC-2022-018749 · Safe

    Expires 2027-12-14

  15. CertificationFire Escape Report

    Certification BC-2022-014298 · Safe with Repair

    Expires 2022-12-02

  16. CertificationFire Escape Report

    Certification BC-2022-013456 · Safe with Repair

    Expires 2022-12-02

  17. CertificationFire Escape Report

    Certification BC-2022-013449 · Safe with Repair

    Expires 2022-12-02

  18. PermitElectrical

    Permit 1030492 · COMPLETED

    WIRE NEW BATHROOM IN GYM WITH OUTLETS, SWITCHES, AND LIGHTS AS PER 2017 NEC. REPLACE OR RELOCATE DEVICES ON EXISTING APPROVED FIRE ALARM SYTEM EXCLUDING MAIN PANEL AS PER NFPA 72 (NORTH DIST)

  19. PermitMechanical

    Permit 1023046 · COMPLETED

    INSTALLATION OF NEW HVAC SYSTEM FOR AN EDUCATIONAL FACILITY GYMNASIUM AS PER APPROVED PLANS.

  20. PermitAlterations

    Permit 1023139 · Expired

    INSTALL DRAIN & WATER TO NEW TOILET ROOM FIXTURES PER ATTACHED PLANS

  21. PermitAddition and/or Alteration

    Permit 1016587 · Expired

    LEVEL II INTERIOR ALTERATIONS (NO CHANGE OF OCCUPANCY) FOR RENOVATIONS TO EXISTING GYMNASIUM FACILITY (ACCESSORY TO EXISTING SCHOOL) TO CREATE NEW TOILET ROOM AREAS AS PER APPROVED PLANS. EXISTING BUILDING NOT REQUIRED TO BE SPRINKLERED. *2018* **SEPARATE PERMITS REQUIRED FOR ANY MEP WORK**

  22. PermitDemolition

    Permit 1016589 · COMPLETED

    EZ INTERIOR DEMOLITION- FOR THE INTERIOR DEMOLITION ON NON-BEARING PARTITION WALL AND CEILINGS AS PER ATTACHED STANDARD. DEVIATIONS FROM THESE STANDARDS REQUIRE SUBMISSION OF CONSTRUCTION AND SITE PLANS. . STRUCTURAL ALTERATION OR REPAIR IS EXPRESSLY PROHIBITED UNDER THIS PERMIT. PROHIBITED STRUCTURAL WORK INCLUDES ANY MODIFICATION TO EXTERIOR WALLS, PARTY WALLS, FLOOR/ROOF FRAMING OR FOUNDATIONS.

  23. License terminal eventDAVID RONNENBERG: Food Preparing and Serving (30+ SEATS) business license marked inactive

    License 614852 · Inactive

    License event. Registration does not prove present operation or storefront occupancy.

  24. License issue eventDAVID RONNENBERG: Food Preparing and Serving (30+ SEATS) business license initially issued

    License 614852 · Inactive

    License event. Registration does not prove present operation or storefront occupancy.

  25. PermitZoning admin review

    Permit 398561 · COMPLETED

    APPLICATION FOR ADMINISTRATIVE REVIEW FOR CALENDAR NO. 15377 TO ALLOW FOR MINOR MODIFICATION OF APPROVED LANDSCAPING IN ORDER TO ACCOMODATE REQUEST OF IMMEDIATE NEIGHBORS. ELIMINATE 6' HIGH VEGETATIVE BUFFER ON SOURHT SIDE OF PARKING LOT.

  26. PermitElectrical

    Permit 363920 · COMPLETED

    DEMO OF EXISTING F/A AND INSTALL ADDITIONAL DEVICES AS PER NFPA 72, RENOVATION OF BASEMENT AND FIRST FLOOR TO INCLUDED LIGHTS, RECEPS,AND SWITCHES AS PER 2008 NEC (NORTH DISTRICT)

  27. PermitAdministrative

    Permit 402505 · COMPLETED

    TEMPORARY CERTIFICATE OF OCCPANCY AS PART OF A SCHOOL.

  28. PermitSuppression

    Permit 380911 · COMPLETED

    INSTALLATION OF WET SPRINKLER SYSTEM WITH BACKFLOW PREVENTION DEVICE IN ACCORDANCE WITH NFPA 13 IN PORTIONS OF THE BASEMENT AND GROUND FLOOR LEVELS OF AN EXISTING STRUCTURE (SCHOOL) PER PLANS APPROVED BY PHILADELPHIA HISTROICAL COMMISSION.

  29. PermitPlumbing

    Permit 356033 · COMPLETED

    PLUMBING INSTALLATION IN THE EXISTING BUILDING AND NEW ADDITION - WORK WILL COMPLY WITH THE APPROVED PLANS: P-000, P-100, P-200, P-201, P-202, P-400, P-500, P-600, P-700 AND ALSO MEET THE INTENT OF THE PHILADELPHIA PLUMBING CODE REV. 2004

  30. PermitMechanical

    Permit 356028 · COMPLETED

    INSTALLATION OF NEW AND RENOVATIONS TO EXISTING MECHANICAL SYSTEM, DUCTWORK, DIFFUSERS, ACCESSORY MECHCANICALS, CONNECT TO EXISTING SYSTEMS PER PLANS.

  31. PermitMajor alteration

    Permit 352797 · COMPLETED

    INTERIOR AND EXTERIOR ALTERATIONS TO EXISTING SCHOOL, IN CONJUNCTION WITH NEW 1 STORY ADDITION AND CIVIL SITE WORK UNDER AP352065, AS PER SUBMITTED PLANS. BUILDING SPRINKLERED. ADD'L PERMITS REQ: ELECTRICAL PLUMBING HVAC SPRINKLERS SIGNS

  32. PermitAddition

    Permit 352065 · COMPLETED

    CONSTRUCT NEW 1 STORY ADDITION, ASSOCIATED CIVIL SITE WORK, INTERIOR AND EXTERIOR ALTERATIONS TO EXISTING SCHOOL, AS PER SUBMITTED PLANS. BUILDING SPRINKLERED. ADD'L PERMITS REQ: ELECTRICAL PLUMBING HVAC SPRINKLERS SIGNS.

  33. PermitMajor alteration

    Permit 351073 · COMPLETED

    FOR THE CONSTRUCTION OF AN ACCESSIBLE RAMP FOR EXISTING CHURCH AS PER PLAN.

  34. PermitDemolition

    Permit 351445 · COMPLETED

    INTERIOR DEMOLITION TO INCLUDE THE REMOVAL OF NON-LOAD BEARING PARTITIONS, TRIM, HARDWARE, WALL AND FLOOR FINISHES.

  35. PermitZoning/use

    Permit 339072 · COMPLETED

    1 STORY MULTI PURPOSE ADDITION WITH RECONFIGURATION OF PORTION OF PARKING LOT, INCLUDING VEGETATION BUFER. NO CHANGE IN TOTAL OF 85 EXISTING PARKING SPACES.

  36. AppealZoning board appeal

    Appeal 15377 · CLOSED · Granted

    Related permit 339072 · CERTIFICATE FOR THE ERECTION OF A ONE (1) STORY ADDITION (MAXIMUM HEIGHT NTE 35') WITH CELLAR TO AN EXISTING SCHOOL. FOR THE RECONFIGURATION OF THE EXISTING PARKING LOT TO INCLUDE NEW VEGETATED BUFFER 6' W X 6' H, TOTAL TO REMAIN EIGHTY-FIV

  37. PermitElectrical

    Permit 252538 · COMPLETED

    INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES THROUGH THE PHONE SYSTEM CONTROL AS PER 2005 NEC (NORTH DISTRICT)

  38. PermitElectrical

    Permit 252539 · COMPLETED

    INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES THROUGH THE PHONE SYSTEM CONTROL AS PER 2005 NEC (NORTH DISTRICT)

  39. PermitElectrical

    Permit 252540 · COMPLETED

    INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES THROUGH THE PHONE SYSTEM CONTROL AS PER 2005 NEC (NORTH DISTRICT)

  40. PermitElectrical

    Permit 252541 · COMPLETED

    INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES THROUGH THE PHONE SYSTEM CONTROL AS PER 2005 NEC (NORTH DISTRICT)

  41. PermitElectrical

    Permit 252542 · COMPLETED

    INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES THROUGH THE PHONE SYSTEM CONTROL AS PER 2005 NEC (NORTH DISTRICT)

  42. PermitElectrical

    Permit 252543 · COMPLETED

    INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES THROUGH THE PHONE SYSTEM CONTROL AS PER 2005 NEC (NORTH DISTRICT)

  43. PermitElectrical

    Permit 245561 · ABANDONED

    MAIN BUILDING , SCHOOL FOR THE DEAF, INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES ACTUATED THROUGH THE PHONE SYSTEM CONTROL.

  44. PermitElectrical

    Permit 245569 · ABANDONED

    BUILDING 9 , SCHOOL FOR THE DEAF, INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES ACTUATED THROUGH THE PHONE SYSTEM CONTROL.

  45. PermitElectrical

    Permit 245530 · ABANDONED

    BUILDING 8 , SCHOOL FOR THE DEAF, INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES ACTUATED THROUGH THE PHONE SYSTEM CONTROL.

  46. PermitElectrical

    Permit 245532 · ABANDONED

    BUILDING EEC , SCHOOL FOR THE DEAF, INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES ACTUATED THROUGH THE PHONE SYSTEM CONTROL.

  47. PermitElectrical

    Permit 245566 · ABANDONED

    BUILDING 2 , SCHOOL FOR THE DEAF, INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES ACTUATED THROUGH THE PHONE SYSTEM CONTROL.

  48. PermitElectrical

    Permit 245540 · ABANDONED

    BUILDING 1 , SCHOOL FOR THE DEAF, INSTALL VISIBLE EMERGENCY NOTIFICATION SYSTEM AND DEVICES ACTUATED THROUGH THE PHONE SYSTEM CONTROL.

  49. PermitElectrical

    Permit 146552 · COMPLETED

    INSTALL NEW 1200 AMP SWITCHBOARD, INSTALL NEW UNDERGROUND CONDUIT INTO BLDG, REPAIR EXISTING CONDUIT INSTALLED BY OTHERS INCLUDING REMOVING AND RE-INSTALLING CONDUCTORS FOR THE CHILLIER, { ONLY } ALL WORK AS PER 2005 NEC (EAST DIST)

  50. PermitElectrical

    Permit 92050 · COMPLETED

    INSTALLING AND UPGRADING ELECTRICAL SERVICES: IN CHAPEL, CHAPEL ANNEX, MAIN BUILDING, CONNECTOR BUILDING, NEVIL HALL, GYM. (NORTH DIST)

  51. PermitZoning

    Permit 101093 · COMPLETED

    ERECTION OF A 6' FENCE, CHILLER, 8' BLAST WALL AND RELOCATION OF TRANSFORMER

  52. PermitMechanical

    Permit 91809 · COMPLETED

    NEW AIR CONDITIONING SYSTEM BLDG COMPLEX AND 109 FAN COIL UNITS AND VENTILATION SYSTEM AS PER ATTACHED PLANS

Where this comes from

Methodology & freshness

This report was assembled Jul 25, 2026, 8:41 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)