Apartment building report

4100-02 Ludlow St

4 stories · 6,500 sqft · CMX4 · built 2018

Property at a glanceApartment building

4100 Ludlow Street LLC

2026 assessment
$1.6M OPA value, not a listing price
2027 published assessment
$1.5M Future roll, not the current tax bill
Neighborhood area
University City · West Powelton Approximate · based on ZIP 19104
Street view of 4100-02 Ludlow St
From the street · imagery © Google

The property record, over time

Every dated deed, permit, inspection, license, violation, certification, and appeal is placed on the City’s annual assessment line. Select a point to read what happened; the line is an assessment history, not a sale-price chart or appraisal. OPA has also published a 2027 assessment of $1,473,200; it is not yet the billed-year tax basis.

Assessment history · all dated City records marked on the line

$0$1.0M$2.0M$1.5M2015201720192021202320252027
Property assessmentAssessmentTeardownL&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 record35 events · exact dates, newest first
  1. CertificationSprinkler Certification
  2. PermitChange of Use
  3. CertificationSprinkler Certification
  4. CertificationFire Alarm Certification
  5. CertificationSprinkler Certification
  6. PermitAlterations
  7. License4100 Ludlow Street LLC: Rental landlord or residential registration initially issued
  8. CertificationSprinkler Certification
  9. LicenseLUDLOW BROTHERS LLC: Rental landlord or residential registration marked inactive
  10. CertificationSprinkler Certification
  11. CertificationFire Alarm Certification
  12. LicenseLUDLOW BROTHERS LLC: Rental landlord or residential registration initially issued
  13. PermitMechanical
  14. PermitElectrical
  15. InspectionBP_BLDG
  16. PermitPlumbing
  17. PermitPlumbing
  18. L&I violationWORKMANLIKE- BUILDING CODE
  19. InspectionBP_BLDG
  20. PermitAdministrative
  21. InspectionBP_BLDG
  22. PermitSuppression
  23. L&I violationPERMB- UNDERPIN FOUNDATION
  24. L&I violationPERMB- REV WK GONE BEYOND ORIG
  25. InspectionBP_BLDG
  26. PermitNew construction
  27. TeardownDemolished
  28. PermitAdministrative
  29. PermitNew construction
  30. PermitZoning/use
  31. PermitZoning
  32. PermitZoning
  33. AppealZoning board appeal
  34. PermitDemolition
  35. PermitZoning/use

Preparing this comparison.

Compare nearby property records

The subject property stays pinned above and is excluded from this comparable list. Repeated condominium addresses include their OPA parcel number.

Property details and source records

The visual history and live comparison stay above. Use these focused views for tax, ownership, nearby-block, and supporting City records.

The estimate, live balance, and back-tax record are different.

BlockReport can calculate the annual tax from the City’s taxable assessment. Payments, credits, interest, and a current amount due live separately in Philadelphia Tax Center.

Estimated annual Real Estate Tax$2,210/year

2026 taxable assessment $157,910 × 1.3998%. This is an estimate, not a bill or account balance.

OPA also publishes a 2027 assessment of $1,473,200; it is not the 2026 billed-year value.

Official current account balanceCheck live

A Tax Center balance is net of bills, payments, credits, interest, and adjustments. A credit or an amount due is not automatically “back taxes.”

OPA 881442745
Open Philadelphia Tax Center →Choose “View period balance” to see the tax year and any credit, interest, or delinquency.
Exemption classificationPartial assessment exemption, basis unverified

2026 OPA taxes $157,910 of $1,579,100 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.

See the assessment math →
Full-assessment scenario$22,104/year

Applying the same rate to the billed-year full assessment. OPA's numeric split does not say when or whether the current treatment changes.

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

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

What it is
Apartment building Apts 5-50 Units Masonry
Owner
4100 Ludlow Street LLC
OPA tax treatment
Assessed $1.6M Taxable assessment on the roll
$ / sq ft
$227 above the $147 median for 2,826 apartments parcels citywide
Corridor
40th Street and vicinity city commercial corridor
Licensed units
6 active rental license
Assessed value
$1,579,100 2026 OPA · 2027: $1,473,200
Interior area
6,500 sqft
Lot size
1,700 sqft
Stories
4
Built
2018
Zoning
CMX4

Recorded owner

Who's behind it

4100 Ludlow Street LLC · corporate / LLC owner

• Tax bills mail to 70 E 10th Street 4r, New York NY, 10003 — outside Philadelphia
• Holds an active rental license for this address

Block context

4100 block of Ludlow St. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 4104-08 Ludlow St  ·  4110 Ludlow 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 23, 2026.

Landlord and residential filings

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

4100 Ludlow Street LLCActive

Rental · Initial issue date Jul 25, 2023 · Filed expiration Jul 24, 2027

LUDLOW BROTHERS LLCInactive

Rental · Initial issue date Feb 16, 2018 · Terminal license date Apr 16, 2022

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.

Browse 34 dated records

Deeds, permits, inspections, licenses, violations, certifications, and appeals.

Open the City record ↗
Open the source ledger 34 dated rows
  1. CertificationSprinkler Certification

    Certification BC-2026-019576 · Certified

    Expires 2027-06-24

  2. PermitChange of Use

    Permit ZP-2026-005134 · Issued

    Visitor Accommodations

  3. CertificationSprinkler Certification

    Certification BC-2026-009714 · Certified

    Expires 2026-12-02

  4. CertificationFire Alarm Certification

    Certification BC-2025-021346 · Certified

    Expires 2026-05-19

  5. CertificationSprinkler Certification

    Certification BC-2024-004016 · Certified

    Expires 2024-11-15

  6. PermitAlterations

    Permit PP-2023-013371 · Completed

    REPLACE 1-1/" BACKFLOW DEVICE.

  7. License issue event4100 Ludlow Street LLC: Rental landlord or residential registration initially issued

    License 929416 · Active

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

  8. CertificationSprinkler Certification

    Certification BC-2021-000751 · Certified

    Expires 2023-11-23

  9. License terminal eventLUDLOW BROTHERS LLC: Rental landlord or residential registration marked inactive

    License 766211 · Inactive

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

  10. CertificationSprinkler Certification

    Certification BC-2022-000300 · Certified

    Expires 2022-12-13

  11. CertificationFire Alarm Certification

    Certification BC-2021-001605 · Certified

    Expires 2022-05-18

  12. License issue eventLUDLOW BROTHERS LLC: Rental landlord or residential registration initially issued

    License 766211 · Inactive

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

  13. PermitMechanical

    Permit 728530 · COMPLETED

    INSTALL 6 HVAC UNITS WITH DUCTWORK. ALL SELF CONTAINED (MULTI-FAMILY)

  14. PermitElectrical

    Permit 718176 · COMPLETED

    400AMP MAIN SERVICE. 7 GANG METER 125 AMP PER POSITION. WIRING THROUGHOUT AS PER NEC 2008 FIRE ALARM WIRE AND INSTALL AS PER NFPA 72

  15. InvestigationBP_BLDG

    Case 544519 · PASSED

    The cited inspection visit was marked passed.

  16. PermitPlumbing

    Permit 712840 · COMPLETED

    NEW 1 1/2" WATER SERVICE, 5" LATERAL, CURB TRAP, FAI AND AREA DRAIN-PA1#20162180280-"SELF-CERTIFICATION'S ARE NO LONGER PERMITTED" - "ALL EXCAVATIONS AND PLUMBING TRENCHES IN EXCESS OF 5 FEET IN DEPTH MUST HAVE APPROVED SHORING IN PLACE AT THE TIME OF INSPECTION"

  17. PermitPlumbing

    Permit 691204 · COMPLETED

    NEW CONSTRUCTION: INTERIOR PLUMBING; FOUR (4) STORY STRUCTURE WITH PILOT HOUSE AND ROOF DECK; SIX FAMILY DWELLING - THE INSTALLATION WILL COMPY WITH THE PHILADELPHIA PLUMBING CODE 2004

  18. ViolationWORKMANLIKE- BUILDING CODE

    Case 544519 · Violation 4010794 · Code A-104.1/1 · CLOSEDCASE

    City marked the case closed; that does not mean the original condition never existed.

  19. InvestigationBP_BLDG

    Case 544519 · FAILED

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

  20. PermitAdministrative

    Permit 692912 · COMPLETED

    AMEND BUILDING PERMIT AP#641031 TO REFLECT CORRECT ESTIMATED COST OF WORK OF $750,000.00

  21. InvestigationBP_BLDG

    Case 522698 · PASSED

    The cited inspection visit was marked passed.

  22. PermitSuppression

    Permit 637126 · COMPLETED

    FOR THE INSTALLATION OF A (2) INCH FIRE SERVICE LINE W. BACKFLOW PREVENTOR (BFP) ASSEMBLY AND FOR INSTALLATION OF A FIRE SUPPRESSION SYSTEM AS PER NFPA 13R, STANDPIPE SYSTEM AS PER NFPA 14. ALL WORK SHALL BE IN ACCORDANCE WITH APPROVED PLANS AND HYDRAULIC CALCULATIONS.

  23. ViolationPERMB- UNDERPIN FOUNDATION

    Case 522698 · Violation 3860739 · Code A-301.1/37 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  24. ViolationPERMB- REV WK GONE BEYOND ORIG

    Case 522698 · Violation 3860740 · Code A-302.10/3 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  25. InvestigationBP_BLDG

    Case 522698 · FAILED

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

  26. PermitNew construction

    Permit 641031 · COMPLETED

    FOR THE ERECTION OF A FOUR (4) STORY STRUCTURE WITH PILOT HOUSE AND ROOF DECK (ROOF DECK FOR MAINTENANCE PURPOSES ONLY); FOR USE AS A SIX FAMILY DWELLING. ENTIRE BUILDING TO BE FULLY SPRINKLERED PER NFPA 13 SYSTEM AND EQUIPPED WITH A STANDPIPE SYSTEM. SEE AP# 629949 FOR FOUNDATION PERMIT. ALL WORK SHALL BE DONE IN ACCORDANCE WITH APPROVED PLANS.

  27. PermitAdministrative

    Permit 648559 · COMPLETED

    AMEND DEMOLITION PERMIT #588040 TO CHANGE CONTRACTOR TO GAMA WRECKING TO INCLUDE UPDATED SITE SAFETY PLAN AND WORK SCHEDULE.

  28. PermitNew construction

    Permit 629949 · COMPLETED

    FOR THE CONSTRUCTION OF A FOUNDATION SYSTEM ONLY, PER APPROVED PLANS AND SUBMITTED GEOTECHNICAL REPORT.

  29. PermitZoning/use

    Permit 624046 · COMPLETED

    FOR THE ERECTION OF AN ATTACHED STRUCTURE WITH PILOT HOUSE ACCESS TO ROOF DECK ONLY FOR A MULTI-FAMILY HOUSEHOLD LIVING (SIX (6) DWELLING UNITS).SIZE AND LOCATION AS SHOWN IN THE APPLICATION.

  30. PermitZoning

    Permit 607975 · COMPLETED

    RELOCATION OF LOT LINES TO CREATE (1) LOT FROM (2)LOTS.

  31. PermitZoning

    Permit 607978 · COMPLETED

    RELOCATION OF LOT LINES TO CREATE (1) LOT FROM (2)LOTS.

  32. AppealZoning board appeal

    Appeal 24788 · CLOSED · Withdrawn

    Related permit 592142 · PERMIT FOR THE LOT ADJUSTMENT TO CREATE ONE(1) LOT ( PREMISES 'C') FROM TWO(2) OPA ACCOUNTS ( PREMISES 'A' AND PREMISES 'B')( 4100 LUDGOW ST AND 4102 LUDGOW ST) AS FOLLOWS: PREMISES "C": FOR THE ERECTION OF AN ATTACHED STRUCTURE WITH PILOT

  33. PermitDemolition

    Permit 588040 · COMPLETED

    FOR THE COMPLETE DEMOLITION OF AN EXISTING SEMI-DETACHED [VACANT LOT ON ONE SIDE] THREE (3) STORY SINGLE FAMILY MASONRY AND WOOD BUILDING. 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 CODE BULLETIN B-1302. PROTECTION OF ADJACENT LOW ROOF AT 4104 LUDLOW ST TO BE PROVIDED PER SAFETY PLAN/DEMOLITION SCHEDULE. FULL SIDEWALK CLOSURE REQUIRED AS REFLECTED ON APPROVED SITE PLAN AND IN ACCORDANCE WITH SECTION 3306 OF THE IBC. SEPARATE STREET CLOSURE PERMIT REQUIRED PRIOR TO START OF WORK. ANY DEVIATION WILL REQUIRE AN AMENDED BUILDING PERMIT.

  34. PermitZoning/use

    Permit 588037 · COMPLETED

    FOR THE COMPLETE DEMOLITION OF AN EXISTING ATTACHED STRUCTURE. SIZE AND LOCATION AS SHOWN IN APPLICATION. FOR USE AS A VACANT LOT.

What this record suggests

The City file documents 16 permits touching electrical work, plumbing, roof work. 16 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.

Where this comes from

Methodology & freshness

This report was assembled Jul 23, 2026, 12:29 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)