Apartment building report

817-21 N 3rd St

6 stories55,242 sqftIRMXbuilt 2025

Property at a glanceIndustrial building

817n3 LLC

2026 assessment
$9.5M OPA value, not a listing price
2027 published assessment
$12M Future roll, not the current tax bill
Neighborhood area
Northern Liberties · Callowhill Approximate · based on ZIP 19123
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 $11,524,100. It is not yet the billed-year tax basis.

$0$10M$20M$12M200220072012201720222027
Property assessmentAssessmentTeardownL&I violationPermitInspectionLicenseCertification

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 record33 events · exact dates, newest first
  1. CertificationFire Alarm Certification
  2. CertificationSprinkler Certification
  3. License817N3 LLC: Rental landlord or residential registration initially issued
  4. TeardownDemolished
  5. LicenseKertsmanBrothers LLC (Little City Montessori): Food Preparing and Serving (30+ SEATS) business license initially issued
  6. PermitAddition and/or Alteration
  7. PermitNew Construction or Additions
  8. PermitAddition and/or Alterations
  9. PermitRough-In
  10. L&I violationWALKWAY NOT PROVIDED
  11. InspectionL&I investigation
  12. PermitAddition and/or Alteration
  13. PermitNew Construction
  14. PermitChange of Use
  15. PermitAddition and/or Alteration
  16. PermitAddition and/or Alteration
  17. PermitNew Construction
  18. PermitNew Construction
  19. PermitNew Construction or Additions
  20. InspectionL&I investigation
  21. InspectionL&I investigation
  22. InspectionL&I investigation
  23. InspectionL&I investigation
  24. InspectionL&I investigation
  25. InspectionL&I investigation
  26. PermitMajor Demolition
  27. PermitAlterations
  28. PermitNew Construction
  29. PermitMinor Demolition
  30. PermitAlterations
  31. PermitFoundation
  32. LicenseGCS SERVICE INC: Dumpster License - Private Property L&I license filing marked inactive
  33. LicenseGCS SERVICE INC: Dumpster License - Private Property L&I license filing initially issued

Verify the public record

$13,333/year estimated property tax

2026 taxable assessment $952,500 × 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 $11,524,100. 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 881000302
Open Philadelphia Tax Center →Use “View period balance” to inspect each tax year.
Exemption classificationPartial assessment exemption, basis unverified

2026 OPA taxes $952,500 of $9,525,000 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.

See the assessment math →
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.”

Building report

Apartment building

Industrial building, recorded in the City's apartments category. The public record and owner trail follow.

What it is
Industrial building Ind Warehouse Masonry
Owner
817n3 LLC
$ / sq ft
$209 above the $147 median for 2,826 apartments parcels citywide
Licensed units
48 active rental license
Interior area
55,242 sqft
Lot size
14,829 sqft
Stories
6
Built
2025
Zoning
IRMX

Recorded owner

Who's behind it

817n3 LLC · corporate / LLC owner

• Tax bills mail to 817 N 3rd St, Philadelphia PA, 19123
• Holds an active rental license for this address

Block context

800 block of N 3rd St. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 823-29 N 3rd St  ·  807 N 3rd 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 ↗
KertsmanBrothers LLC (Little City Montessori)Active

Food Preparing and Serving (30+ SEATS) · Initial issue date Jun 11, 2024 · Filed expiration Jun 10, 2027

Landlord and residential filings

These are property registrations or landlord filings, not businesses operating at this address.

817N3 LLCActive

Rental · Initial issue date May 16, 2025 · Filed expiration May 15, 2027

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 31 dated rows
  1. CertificationFire Alarm Certification

    Certification BC-2026-010405 · Certified

    Expires 2027-03-27

  2. CertificationSprinkler Certification

    Certification BC-2025-023910 · Certified

    Expires 2026-08-04

  3. License issue event817N3 LLC: Rental landlord or residential registration initially issued

    License 0979177 · Active

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

  4. License issue eventKertsmanBrothers LLC (Little City Montessori): Food Preparing and Serving (30+ SEATS) business license initially issued

    License 0953769 · Active

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

  5. PermitAddition and/or Alteration

    Permit EP-2024-002130 · Completed

    Install MC cable for all devices: outlets, switches, lights, and GFCI receptacles in bathrooms as per 2017 NEC. 400 amp panel is existing. Install new fire alarm devices on existing system as per 2016 NFPA 72.

  6. PermitNew Construction or Additions

    Permit PP-2024-002409 · Completed

    installation of cast iron drains and copper water lines, to an existing building on first floor, for 4 kitchen sinks,7toilets and 7 lavs with 2 washing machines and 1 electric water heater . 4-kitchen sinks,2 washer stand pies,7toilets,7 lavs

  7. PermitAddition and/or Alterations

    Permit FP-2024-000334 · 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 SPRINKLER HEADS

  8. PermitRough-In

    Permit PP-2024-002413 · Completed

    ROUGH-IN OF ABOVE GROUND PIPING TO 21 FIXTURES IN AN EXISTING BUILDING.

  9. ViolationWALKWAY NOT PROVIDED

    Case CF-2024-011699 · Violation VI-2024-009685 · Code B-3306.2 · SVN ISSUED

    Resolution: SVN ISSUED

  10. InvestigationL&I investigation

    Case CF-2024-011699

  11. PermitAddition and/or Alteration

    Permit CP-2024-000572 · Completed

    FOR LEVEL II ALTERATIONS AND CHANGE IN OCCUPANY AT FIRST-FLOOR OF EXISTING BUILDING. CHILD CARE CENTER TO BE FULLY SPRINKLERED PER NFPA 13. SEPARATE BUILDING PERMITS REQUIRED FOR MECHANICAL, ELECTRICAL, PLUMBING AND FIRE SUPPRESSION.

  12. PermitNew Construction

    Permit MP-2024-000046 · Completed

    FOR THE INSTALLATION OF REGISTERS, DIFFUSERS AND APPLIANCES WITH ASSOCIATED DUCTWORK. APPLIANCES TO BE INSTALLED IN ACCORDANCE WITH THE MANUFACTURER’S SPECIFICATIONS. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS REQUIRED FOR ALL OTHER WORK.

  13. PermitChange of Use

    Permit ZP-2023-011979 · Issued

    Child Care - Child Care Center

  14. PermitAddition and/or Alteration

    Permit EP-2023-007631 · Completed

    Install 1600 amp Service with 49 gang meter bank. Install outlets, switches, lights, GFCI(s), smoke/CO alarms in each (48)unit, and exit/emergency light system as per 2017 NEC. Install Fire Alarm as per 2016 NFPA 72.

  15. PermitAddition and/or Alteration

    Permit EP-2023-008520 · Completed

    Install 100 amp 3 -phase temp service AS PER NEC 2017

  16. PermitNew Construction

    Permit MP-2023-002503 · Completed

    FOR A NEW MECHANICAL SYSTEM INSTALLATION TO ACCOMMODATE AN EXISTING STRUCTURE. WORK TO INCLUDE THE INSTALLATION OF REGISTERS, DIFFUSERS AND APPLIANCES WITH ASSOCIATED DUCTWORK. APPLIANCES TO BE INSTALLED IN ACCORDANCE WITH MANUFACTURER'S SPECIFICATIONS. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS REQUIRED FOR ALL OTHER WORK.

  17. PermitNew Construction

    Permit FP-2023-000458 · Completed

    COMBINED AUTOMATIC SPRINKLER & CLASS I MANUAL WET STANDPIPE SYSTEMS WITH FOUR (4) INCH FIRE SERVICE LINE & BACKFLOW PREVENTION (BFP) ASSEMBLY TO SERVE THE MIXED-USE NEW CONSTRUCTION. AUTOMATIC SPRINKLER SYSTEM & STANDPIPE SYSTME INSTALLATION PER NFPA 13/14. FIRE PUMP INSTALLATION PER NFPA 20.

  18. PermitNew Construction or Additions

    Permit PP-2022-011399 · Completed

    installation of 4" domestic water service ,8" curb trap and house drain,cast iron drains and cooper water lines on basement and 1st floor piping ,pvc drains and pex water lines on 2nd floor through 6th floor foor 96 bathrooms and 48 kitchens

  19. InvestigationL&I investigation

    Case CF-2022-001175 · PASSED

    The cited inspection visit was marked passed.

  20. InvestigationL&I investigation

    Case CF-2022-021310 · PASSED

    The cited inspection visit was marked passed.

  21. InvestigationL&I investigation

    Case CF-2022-001175 · FAILED

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

  22. InvestigationL&I investigation

    Case CF-2022-021310 · FAILED

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

  23. InvestigationL&I investigation

    Case CF-2022-001175 · FAILED

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

  24. PermitMajor Demolition

    Permit DP-2021-002007 · Completed

    FOR THE COMPLETE DEMOLITION OF AN EXISTING ONE STORY MASONRY STRUCTURE.STRUCTURE TO BE DEMOLISHED BY HAND ONLY. PEDESTRIAN PROTECTION TO BE IN PLACE PRIOR TO START OF WORK AND TO BE MAINTAINED DURING ALL DEMOLITION ACTIVITIES. SEPARATE STREETS DEPARTMENT APPROVAL REQUIRED FOR SIDEWALK CLOSURE

  25. PermitAlterations

    Permit PP-2021-017607 · Completed

    Seal lateral

  26. PermitNew Construction

    Permit CP-2020-005959 · Completed

    AMENDMENT II: FOR THE AMENDMENT OF PREVIOUSLY APPROVED PERMIT CP-2020-005959 TO DOCUMENT CHANGE IN EGRESS LAYOUT AS SHOWN PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN PROFESSIONAL PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS TO BE OBTAINED FOR ALL OTHER WORK. AMENDMENT I: FOR THE AMENDMENT OF PREVIOUSLY APPROVED PERMIT CP-2020-005959 TO DOCUMENT CHANGE IN CONSTRUCTION FOR THE CONVERSION FROM CONCRETE SLAB ON STEEL DECK TO CAST IN PLACE CONCRETE FROM THE FOUNDATION THROUGH SECOND FLOOR LEVEL. WORK TO ALSO INCLUDE THE REPLACING TJI'S WITH TYPICAL LUMBER JOISTS AS SHOWN PER STRUCTURAL PLANS SEALED BY PROFESSIONAL ENGINEER. ALL WORK TO BE DONE PER APROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS TO BE OBTAINED FOR ALL OTHER WORK. ORIGINAL: FOR THE ERECTION OF AN ATTACHED SIX STORY STRUCTURE WITH A ROOF DECK ACCESSED BY A PILOTHOUSE. STRUCTURE FOR USE A VACANT COMMERCIAL SPACE( SEPARATE USE PERMIT AND FITOUT TO BE OBTAINED PRIOR TO OCCUPANCY) AT FIRST FLOOR, FOR A MULTI-FAMILY HOUSEHOLD LIVING ( FOURTY-EIGHT(48) DWELLING UNITS FROM SECOND FLOOR THROUGH 6TH FLOORS WITH ACCESSORY THIRTY-SIX(36)PARKING SPACES IN THE BASEMENT LEVEL, AND TWENTY(20) BICYCLE SPACES IN AN ACCESSIBLE ROUTE. BUILDING COMPOSED OF TWO DIFFERENT CONSTRUCTION TYPES (TYPE IA(BASEMENT-FIRST FLOOR LEVEL) AND TYPE IIIB CONSTRUCTION (THIRD-SIXTH FLOOR LEVEL). BUILDING IS FULLY SPRINKLERED IN ACCORDANCE WITH NFPA 13 AND STANDPIPES TO BE PROVIDED IN THE EXIT STAIRWAYS PER NFPA 14. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. **A COVERED WALKWAY OR SIDEWALK CLOSURE SHALL BE REQUIRED WITHIN 15 FEET OF THE BUILDING FACADE IN ACCORDANCE WITH SECTION 3306 OF THE 2018 IBC. SEPARATE BUILDING AND/OR STREETS DEPARTMENT PERMIT REQUIRED PRIOR TO THE START OF ANY WORK. *** FIRE WATCH IS REQUIRED ONCE COMBUSTIBLE CONSTRUCTION IS OVER 40 FEET IN HEIGHT,

  27. PermitMinor Demolition

    Permit 1003354 · Expired

    FOR THE COMPLETE DEMOLITION OF ONE EXISTING SEMI-ATTACHED ONE-STORY, MASONRY VACANT COMMERCIAL STRUCTRE BY HAND. ALL PERMITTED DEMOLITION ACTIVITY TO BE IN ACCORDANCE WITH APPROVED SITE SAFETY DEMOLITION PLAN & SUCH PLAN TO BE MAINTAINED ON SITE AT ALL TIMES IN ACCORDANCE WITH PHILADELPHIA ADMINISTRATIVE CODE.ANY DEVIATION WILL REQUIRE AN AMENDED BUILDING PERMIT. PEDESTRIAN PROTECTION TO BE IN PLACE PRIOR TO START OF WORK AND TO BE MAINTAINED DURING ALL DEMOLITION ACTIVITIES. * NO WALL OVER 6FT IN HEIGHT TO REMAIN STANDALONE ON LOT.* * A COVERED WALKWAY OR SIDEWALK CLOSURE SHALL BE REQUIRED IN ACCORDANCE WITH SECTION 3306 OF THE IBC. SEPARATE BUILDING AND/OR STREETS DEPARTMENT PERMITS ARE REQUIRED. IF FIELD CONDITIONS VARY CONTACT DESIGN PROFESSIONAL PRIOR TO THE START OF ANY WORK.

  28. PermitAlterations

    Permit 1004404 · Expired

    SEAL LATERAL AS PER 2004 PPC

  29. PermitFoundation

    Permit 967841 · Expired

    NEW CONSTRUCTION FOR FOUNDATION ONLY FOR AN ATTACHED STRUCTURE WITH ROOF DECK ACCESSED BY A PILOTHOUSE,FOR A VACANT COMMERCIAL SPACE AT FIRST FLOOR, A MULTI-FAMILY HOUSEHOLD LIVING [ FOURTY-EIGHT(48) DWELLING UNITS] FROM THE SECOND FLOOR THROUGH 6TH FLOORS WITH ACCESSORY THIRTY-SIX(36)PARKING SPACES, SIX(6) COMPACT SPACES, TWO(2) ELECTRIC PARKING SPACES, TWO(2) ACCESSIBLE SPACES INCLUDING WITH ONE(1) VAN ACCESSIBLE SPACE, TWENTY-FOUR(24) TANDEM TYPE MECHANICAL PARKING SPACES AND WITH TWENTY(20) BICYCLE SPACES IN AN ACCESSIBLE ROUTE. **SEPARATE PERMITS REQUIRED FOR THE REMAINDER OF BUILDING**UNDERPINNING TO BE MONITORED AT ALL TIME BY THE APPROVED SPECIAL INSPECTOR.**

  30. License terminal eventGCS SERVICE INC: Dumpster License - Private Property L&I license filing marked inactive

    License 281302 · Inactive

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

  31. License issue eventGCS SERVICE INC: Dumpster License - Private Property L&I license filing initially issued

    License 281302 · Inactive

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

Where this comes from

Methodology & freshness

This report was assembled Jul 26, 2026, 2:30 AM 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)