Property report

305 Chestnut St

113,364 sqftCMX3built 1900

Property at a glanceLibrary

Individual owner on record

2026 assessment
$12M OPA value, not a listing price
2027 published assessment
$12M Future roll, not the current tax bill
Neighborhood area
Old City · Society Hill Approximate · based on ZIP 19106
From above · selected parcel outlined; choose a neighboring polygon to open it — imagery © Esri, Maxar

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 $12,386,700. It is not yet the billed-year tax basis.

$0$10M$20M$12M200720112015201920232027
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 record58 events · exact dates, newest first
  1. L&I violationSUPPRESSION SYSTEM TESTING & MAINTENANCE
  2. InspectionL&I investigation
  3. CertificationSprinkler Certification
  4. CertificationSpecial Hazards Certification
  5. PermitRoof Covering Replacement
  6. PermitAddition and/or Alteration
  7. CertificationFire Alarm Certification
  8. PermitAddition and/or Alteration
  9. PermitAddition and/or Alterations
  10. PermitAddition and/or Alterations
  11. PermitAddition and/or Alteration
  12. CertificationFire Alarm Certification
  13. PermitAddition and/or Alteration
  14. PermitAlterations
  15. PermitAddition and/or Alterations
  16. PermitAddition and/or Alteration
  17. PermitAddition and/or Alterations
  18. PermitAddition and/or Alteration
  19. CertificationSprinkler Certification
  20. CertificationSpecial Hazards Certification
  21. CertificationFacade Report
  22. InspectionL&I investigation
  23. L&I violationFACADES
  24. InspectionL&I investigation
  25. PermitMajor alteration
  26. PermitOperations
  27. PermitElectrical
  28. PermitZoning/use
  29. AppealZoning board appeal
  30. CertificationFacade Report
  31. PermitElectrical
  32. PermitSuppression
  33. PermitAlteration
  34. PermitSuppression
  35. PermitSuppression
  36. PermitZoning/use
  37. PermitElectrical
  38. PermitElectrical
  39. PermitMajor alteration
  40. PermitPlumbing
  41. PermitElectrical
  42. PermitMechanical
  43. PermitAddition
  44. PermitZoning/use
  45. PermitZoning/use
  46. PermitMajor alteration
  47. LicenseCHEMICAL HERITAGE FOUNDATION: Dumpster License - Private Property L&I license filing initially issued
  48. PermitZoning
  49. PermitZoning/use
  50. PermitSuppression
  51. PermitElectrical
  52. PermitElectrical
  53. PermitPlumbing
  54. PermitPlumbing
  55. PermitMechanical
  56. PermitMajor alteration
  57. PermitZoning/use
  58. PermitUse

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 $12,386,700. 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 771735505
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.”

Where the record looks off

Conflicts in City paperwork. Flags on the data, not the property.

"Built 1900" is usually a placeholder

Philadelphia records use 1900 as a stand-in when the real construction year was never documented. Treat the age as unknown, not as 120+ years.

Property report

Not a house

Library. 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.

1 open violation

What it is
Library Misc Library Masonry
Owner
Individual owner on record Public / institutional
$ / sq ft
$109 below the $151 median for 7,668 commercial parcels citywide
Corridor
Old City city commercial corridor
Interior area
113,364 sqft
Lot size
29,930 sqft
Built
1900
Zoning
CMX3

Block context

300 block of Chestnut St. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 303 Chestnut St  ·  301 Chestnut St

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 ↗

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 58 dated rows
  1. ViolationSUPPRESSION SYSTEM TESTING & MAINTENANCE

    Case CF-2026-082243 · Violation VI-2026-050788 · Code F-903.5 · OPEN

  2. InvestigationL&I investigation

    Case CF-2026-082243 · FAILED

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

  3. CertificationSprinkler Certification

    Certification BC-2026-009649 · Deficient

  4. CertificationSpecial Hazards Certification

    Certification BC-2025-028760 · Certified

    Expires 2026-10-17

  5. PermitRoof Covering Replacement

    Permit GM-2025-007622 · Issued

    EZ PERMIT RE-ROOFING- For the Installation of New Roof Coverings on Existing Roofs as per attached standard. Deviations from these standards require submission of construction and site plans. Replacement of sheathing in excess of 10% of roof area shall not be applicable to the EZ permit process. Work is just for the "Ullyot Center Building" (eastern-most building of 305 Chestnut St on Chestnut St side) and is a non-contributing building in the Old City Historic District. Confirmed via email with applicant. No work to exterior windows and/or doors as part of this permit. No work to front facade as part of this permit(As per PHC conditions).

  6. PermitAddition and/or Alteration

    Permit EP-2025-002491 · Completed

    Telecom cabling, longest run 250' plenum

  7. CertificationFire Alarm Certification

    Certification BC-2025-016254 · Certified

    Expires 2026-03-14

  8. PermitAddition and/or Alteration

    Permit EP-2025-000707 · Completed

    Interior wiring lighting & receptacles , 1 FA device added for minor alterations . ALL WORK IS TO BE DONE ACCORDING TO APPROVED DRAWINGS-2017 NEC,2016 NFPA-72.

  9. PermitAddition and/or Alterations

    Permit MP-2025-000088 · Completed

    FOR THE ALTERATION TO THE EXISTING HVAC SYSTEM AS PER APPROVED PLANS.

  10. PermitAddition and/or Alterations

    Permit FP-2024-002692 · 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. RELOCATE (10) SPRINKLER HEADS AS PER NFPA 13 AND LOCAL CODES

  11. PermitAddition and/or Alteration

    Permit CP-2024-006600 · Completed

    LEVEL II INTERIOR ALTERATIONS (NO CHANGE OF OCCUPANCY) FOR RENOVATIONS TO MAIN LOBBY AND EXHIBIT SPACES ON THE FIRST FLOOR OF AN EXISTING MUSEUM AS PER APPROVED PLANS. EXISTING BUILDING FULLY SPRINKLERED. *2018 IEBC REVIEW* **SEPARATE PERMITS REQUIRED FOR ANY MEP OR FIRE SUPPRESSION WORK**

  12. CertificationFire Alarm Certification

    Certification BC-2024-033447 · Certified

    Expires 2025-12-11

  13. PermitAddition and/or Alteration

    Permit EP-2024-007084 · Completed

    Running 26 Cat 6 cables, 225' max, plenum

  14. PermitAlterations

    Permit PP-2024-007730 · Completed

    INSTALL 1 FLOOR DRAIN, 1 KITCHEN SINK, 1 LAVATORIES, 1 SUMP PUMP AND 1 WATER CLOSET ACCORDING TO THE 2018 PPC AND PER PLANS.

  15. PermitAddition and/or Alterations

    Permit FP-2024-001241 · 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. RELOCATE (41) SPRNKLER HEADS AS PER NFPA 13

  16. PermitAddition and/or Alteration

    Permit EP-2024-004874 · Completed

    Install 43 light fixture, 1 exit, 8 switch, 30 receptacle, 6 equipment power, and 1 208/120 volt panel as per 2017 NEC. Fire Alarm: Install 3 horn/strobe, 1 strobe, 1 duct detector, and 1 relay as per 2016 NFPA 72.

  17. PermitAddition and/or Alterations

    Permit MP-2024-000701 · Completed

    FOR THE INSTALLATION OF HVAC APPLICANCE, EQUIPMENT, DUCTWORK AND REGISTERS/DIFFUSERS PER APPROVED PLANS AND MANUFACTURER'S SPECIFICATIONS.

  18. PermitAddition and/or Alteration

    Permit CP-2024-000012 · Completed

    FOR LEVEL 2 ALTERATIONS TO CREATE A RECORDING STUDIO I THE BASEMENT OF THE EXISTING STRUCTURE AS PER PLANS.

  19. CertificationSprinkler Certification

    Certification BC-2024-002626 · Certified

    Expires 2025-01-04

  20. CertificationSpecial Hazards Certification

    Certification BC-2023-010801 · Certified

    Expires 2024-05-19

  21. CertificationFacade Report

    Certification BC-2021-002101 · Safe with Repair

    Expires 2026-06-30

  22. InvestigationL&I investigation

    Case CF-2020-084823 · PASSED

    The cited inspection visit was marked passed.

  23. ViolationFACADES

    Case CF-2020-084823 · Violation VI-2020-050852 · Code PM15-315.2 · COMPLIED

    Resolution: COMPLIED - LICENSE/CERTIFICATE/REPORT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.

  24. InvestigationL&I investigation

    Case CF-2020-084823 · FAILED

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

  25. PermitMajor alteration

    Permit 882632 · COMPLETED

    SHELTER PLATFORM/COVERED WALKWAY 72 LINEAR FEET OF SIDEWALK PLATFORM - INSTALLATION AS PER ENGINEERED PLANS AS APPROVED BY PHILADELPHIA STREETS DEPARTMENT. NO OTHER WORK ON THIS PERMIT. CALL THE INSPECTOR AT LEAST 24 HOURS PRIOR TO THE START OF WORK.

  26. PermitOperations

    Permit 25480 · COMPLETED

    5/02/18 ERECT TWO ASSEMBLY TENTS 50X60 AND 20X70

  27. PermitElectrical

    Permit 866009 · COMPLETED

    INSTALL AND RUN (1)60KW GENERATOR TO PROVIDE POWER FOR LIGHTING AND COMPUTERS FOR EVENT DATE 5/3/18 PER 2008 NEC (MUSEUM)

  28. PermitZoning/use

    Permit 735232 · COMPLETED

    FOR THE REMOVAL OF AN EXISTING FENCE AND FOR THE ERECTION OF A FENCE (9'-0" TO 11'-4" IN HEIGHT) AROUND THE PERIMETER OF THE LOT. SIZE AND LOCATION AS SHOWN IN PLANS. FOR USE AS AN EXISTING EDUCATIONAL FACILITY.

  29. AppealZoning board appeal

    Appeal 29619 · OPEN · Granted

    Related permit 735232 · PERMIT FOR THE REMOVAL OF AN EXISTING FENCE AND FOR THE ERECTION OF A FENCE (9'-0" TO 11'-4" IN HEIGHT) AROUND THE PERIMETER OF THE LOT. SIZE AND LOCATION AS SHOWN IN PLANS. FOR USE AS AN EXISTING EDUCATIONAL FACILITY.

  30. CertificationFacade Report

    Certification BC-2022-005848 · Safe with Repair

    Expires 2021-05-20

  31. PermitElectrical

    Permit 653284 · COMPLETED

    INSTALL ACCESS CONTROL ON #326 WORKROOM DOOR AND #621 STORAGE DOOR. CONNECT DOORS TO CONTROLLER IN BASEMENT SECURITY OFFICE AS PER 2008 NEC (CC DISTRICT)

  32. PermitSuppression

    Permit 549578 · COMPLETED

    RELOCATE 14 SPRINKLERS ON THE 4TH FLOOR

  33. PermitAlteration

    Permit 520192 · COMPLETED

    INSTALL A NEW FLEECEBACK PVC MEMBRANE. ROOF SYSTEM DIRECTLY TO THE ROOF AREA OVER EXIXSTING BUILT UP ROOF SYSTEM.

  34. PermitSuppression

    Permit 463513 · COMPLETED

    FOR EXTENSION OF EXIST. AUTOMATIC SPRINKLER SYSTEM W. BACKFLOW PREVENTION (BFP) & FIRE PUMP ASSEMBLIES FOR A ONE (1) STORY W. MEZZANINE RECORDS STORAGE BUILDING. AUTOMATIC SPRINKLER SYSTEM INSTALLATION IN ACCORDANCE WITH NFPA 13. ALL PERMITTED WORK IN ACCORDANCE WITH PLANS APPROVED BY THE PHC DATED 04.02.13. SEPARATE PERMIT REQUIRED FOR AUTOMATIC SPRINKLER SYSTEM PROTECTION OF SHELF STORAGE AREA.

  35. PermitSuppression

    Permit 478377 · COMPLETED

    INSTALLATION OF ONE CLEAN AGENT FIRE SUPPRESSION SYSTEM WITH TWO (2) TANKS WITH A TOTAL OF EIGHT (8) NOZZLES TO INCLUDE SMOKE DETECTORS, MANUAL STATION, ABORT STATION, CONTROL PANEL, AUDIBLE DEVICES, STORAGE CYLINDER AND NOZZLES FOR THE SERVER ROOM. SPRINKLER SYSTEM TO BE PERFORMED BY OTHER. INSTALLATION OF A FIRESUPRESSION SYSTEM IN ACCORDANCE WITH NFPA 2001. SEPARATE ELECTRICAL PERMIT IS REQUIRED.

  36. PermitZoning/use

    Permit 484960 · COMPLETED

    PAINT NEW SIGN ON EXISTING SIGN PANEL

  37. PermitElectrical

    Permit 483508 · COMPLETED

    INSTALL FM 200 SYSTEM FIRE ALARM DEVICES AND CABLING AS PER PLANS - PER 2008 NEC AND NFPA 72

  38. PermitElectrical

    Permit 467628 · COMPLETED

    ADD DEVICES TO EXISTING SYSTEM IN NEW ADDITION IN ACCORDNCE WITH NFPA-72(COMMERCIAL)

  39. PermitMajor alteration

    Permit 445995 · COMPLETED

    FOR THE ERECTION OF A COVERED WALKWAY FOR PEDESTRIAN PROTECTION. ALTERATIONS AND NEW CONSTRUCTION COMPLETED UNDER PERMIT #421875.

  40. PermitPlumbing

    Permit 451988 · COMPLETED

    INSTALLATION OF SANITARY WASTE AND VENT INSTALLATION OF DOMESTIC HOT AND COLD WATER PIPING INSTALLATION OF FIXTURES (COMMERCIAL)

  41. PermitElectrical

    Permit 442151 · COMPLETED

    LIGHTING, POWER AND DISTRIBUTION PER 2008 NEC (COMMERCIAL)

  42. PermitMechanical

    Permit 440038 · COMPLETED

    FOR HVAC ACTIVITY ON THE MEZZANINE & 1ST FLOOR TO INCLUDE THE INSTALLATION OF THREE (3) AIR HANDLING UNITS, REGISTERS/DIFFUSERS, PUMPS, SUPPLY AND RETURN DUCTS AND ASSOCIATED EQUIPMENT & PIPING. ALL WORK SHALL COMPLY WITH THE APPROVED PLANS.

  43. PermitAddition

    Permit 421875 · COMPLETED

    PARTIAL DEMO OF EXISTING 4 STORY BUILDING. RECONSTRUCTION OF BUILDING AS 1 STORY ADDITION WITH MEZZANINE AND A 1 STORY BREEZEWAY ADDITION AS PER PLANS. HISTORIC REHABILITATION OF EXISTING BUILDING.

  44. PermitZoning/use

    Permit 397365 · COMPLETED

    FOR THE COMPLETE DEMOLITION OF AN EXISTING FOUR (4) STORY STRUCTURE (FACADE TO REMAIN) AND FOR THE ERECTION OF A TWO (2) AND ONE (1) STORY ADDITION TO AN EXISTING SEVEN (7) STORY STRUCTURE. SIZE AND LOCATION AS SHOWN IN THE APPLICATION. ADDITION FOR USE AS MANUSCRIPT STORAGE ON THE FIRST FLOOR WITH A MECHANICAL ROOM ON THE SECOND FLOOR AS PART OF AN EXISTING PRIVATE EDUCATION FOUNDATION AND GALLERY, IN THE SAME BUILDING WITH AUDITORIUM, OFFICE / CONFERENCE AREAS, PRIVATE ACCESSORY PARKING AND WITH USES AS PREVIOUSLY APPROVED.

  45. PermitZoning/use

    Permit 338187 · COMPLETED

    FOR THE ERECTION OF ONE(1) STORY ADDITION ON REAR AND SIDE IN AN EXISTING SEVEN(7) STORY STRUCTURE AND FOR THE REMOVAL OF AN EXISTING THREE (3) PARKING SPACES ( FOR A TOTAL OF 36 PARKING SPACES REMAINS) .SIZE AND LOCATION AS SHOWN IN THE APPLICATION. FOR USE AS ACCESSORY STORAGE ( NOT MORE THAN 25% OF GROSS FLOOR AREA) IN THE SAME BUILDING WITH AN EXISTING NON-PROFIT PRIVATE EDUCATION FOUNDATION ( B-7), EXISTING "GALLERY" , AUDITORIUM AND OFFICE/CONFERENCE AREA ON FIRST FLOOR ( B & A-3)ON FIRST FLOOR AND OFFICE/CONFERENCE AREAS ON SECOND FLOOR WITH A PRIVATE ACCESSORY PARKING LOT WITH 36 PARKING SPACES INCLUDING WITH THREE(3) H/C PARKING SPACES WITH ALL OTHER USES AS PREVIOUSLY APPROVED.

  46. PermitMajor alteration

    Permit 335658 · COMPLETED

    EXTERIOR RENOVATIONS (MASONRY REPAIRS TO INCLUDE REPOINTING, REBUILDING PORTION OF PARAPET, FLASHING, RE-COATING EXISTING STUCCO) TO BUILDING FACADES, INCLUDING CONSTRUCTION OF TEMPORARY SIDEWALK SHELTER PLATFORMS AND SCAFFOLDING ALONG CHESTNUT ST (SOUTH FACADE) AND ORIANNA ST (WEST FACADE).

  47. License issue eventCHEMICAL HERITAGE FOUNDATION: Dumpster License - Private Property L&I license filing initially issued

    License 518325 · Active

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

  48. PermitZoning

    Permit 292327 · COMPLETED

    FOR THE RELOCATION OF LOT LINE TO CREATE ONE(1) LOT FROM TWO(2) BRT ACCOUNTS ( 305-319 CHESTNUT STREET AND 36 S 03RD STREET). SIZE AND LOCATION AS SHOWN IN THE APPLICATION.

  49. PermitZoning/use

    Permit 145210 · COMPLETED

    FOR THE ERECTION OF ONE (1) VINYL FLATWALL SIGN (17'-0" X 32'-6"). SIZE AND LOCATION AS SHOWN IN THE APPLICATION. SIGN ACCESSORY TO EXISTING GALLERY, IN THE SAME BUILDING WITH AUDITORIUM, OFFICE / CONFERENCE AREAS, PRIVATE ACCESSORY PARKING AND WITH USES AS PREVIOUSLY APPROVED.

  50. PermitSuppression

    Permit 85020 · COMPLETED

    INSTALL 152 AUTO SPRINKLERS AS PER PLANS.

  51. PermitElectrical

    Permit 72823 · COMPLETED

    FIRE ALARM WORK REQUIRED FOR RENOVATION OF 1ST AND 2ND FLOOR CONFERENCE AND EXHIBIT CNETER (CENTER CITY DISTRICT)

  52. PermitElectrical

    Permit 68160 · COMPLETED

    ELECTRICAL WORK FOR NEW CONFERENCE AND EXHIBIT CENTER INCLUDING RACEWAY ACCESS FOR TELE DATA (CENTER CITY DISTRICT)

  53. PermitPlumbing

    Permit 72953 · COMPLETED

    INSTALLATION OF SANITARY WASTE AND VENT PIPING, INSTALLATION OF WATER SUPPLY PIPING, INSTALLATION OF FXTS. (2 URINALS)

  54. PermitPlumbing

    Permit 66892 · COMPLETED

    INSTALLATION OF SANITARY WASTE AND VENT PIPING, INSTALLATION OF WATER SUPPLY PIPING, INSTALLATION OF FIXTURES.

  55. PermitMechanical

    Permit 63512 · COMPLETED

    HVAC, INCLUDING DUCTWORK, AS PER PLANS

  56. PermitMajor alteration

    Permit 48984 · COMPLETED

    IST &2ND FLR RENOVATIONS;ALTERATIONS INCLUDE WINDOW REPLACEMENT NEW INTERIOR PARTITIONS & FINISHES INSTALLATION OF A MONUMENTAL STAIR & BALCONY AS PER PLANS

  57. PermitZoning/use

    Permit 53921 · COMPLETED

    FOR THE CREATION OF A (2,950 SQ. FT. "BALCONY" AT THE 2ND STORY LEVEL , UNDER EXISTING ROOOF, INCREASING THE TOTAL GFA TO A NEW TOTAL OF (116,527 SQ. FT.) AND INCREASING THE LOT COVERAGE TO 303%. FOR USE AS OFFICE/ CONFERENCE AREAS 2ND FLOOR IN THE SAME BUILDING AS AN EXISTING "GALLERY", AUDITORIUM & OFFICE / CONFERENCE AREAS 1ST FLOOR, NO SIGNS ON THIS APPLICATION.

  58. PermitUse

    Permit 49081 · COMPLETED

    FOR A GALLERY/MUSEUM ON THE FIRST AND SECOND FLOOR OF AN EXISTING BUILDING WITH A PRIVATE ACCESSORY PARKING LOT WITH 44 PARKING SPACES INCLUDING 3 HANDICAPPED SPACES WITH EXISTING PREVIOUSLY APPROVED USES

Where this comes from

Methodology & freshness

This report was assembled Jul 25, 2026, 11:43 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)