2026 assessment
$1.7M
OPA value, not a listing price
Apartment building report
610-12 S 6th St
4 stories5,550 sqftCMX2built 1900
Property at a glanceApartment building
610 Kater Street Rk LLC
2027 published assessment
$2.6M
Future roll, not the current tax bill
Location
600 block of S 6th St
ZIP 19147
Neighborhood area
Queen Village · East Passyunk
Approximate · based on ZIP 19147
Open L&I record
Open City history ↗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.
Case CF-2026-082560
IN VIOLATIONNotice Of Violation
- Rental License Multi Family (R2)
9-3902 (2) - Exterior Structure Protective Treatment
PM15-304.2
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 $2,565,800. It is not yet the billed-year tax basis.
- OPA assessment · 2016$956K 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$956K 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$1.2M 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$1.2M 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$1.2M 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$1.2M 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$1.2M 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$1.2M 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$1.2M 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$1.7M 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 · 2026$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 · 2027$2.6M 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 · 2021-07-28New construction, addition, GFA changeThis 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 · 2021-12-20Addition 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 · 2022-07-18Rough-InThis 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 · 2022-07-25Addition and/or AlterationsThis 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 · 2022-08-21New Construction or AdditionsThis 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 · 2022-11-02New 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 · 2022-12-04Addition 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 · 2023-04-10AlterationsThis 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 ↗
- L&I violation · 2026-07-08RENTAL LICENSE MULTI FAMILY (R2)A dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2026-07-08EXTERIOR STRUCTURE PROTECTIVE TREATMENTA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- Inspection · 2026-07-08L&I investigationA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- License · 2016-03-11GOLDEN TRIANGLE INC: Handbill Distribution L&I license filing initially issuedA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- License · 2018-04-30GOLDEN TRIANGLE INC: Handbill Distribution L&I license filing marked inactiveA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- License · 2015-05-08GOLDEN TRIANGLE INC: Dumpster License - Private Property L&I license filing initially issuedA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- License · 2004-04-01WOLF CHARLES: Rental landlord or residential registration initially issuedA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- License · 2022-04-29WOLF CHARLES: Rental landlord or residential registration marked inactiveA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- Certification · 2024-07-01Fire 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 · 2025-12-03Sprinkler 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 ↗
- Appeal · 2021-08-05ZBA Permit Denial - VarianceA 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 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 record19 events · exact dates, newest first
- L&I violationRENTAL LICENSE MULTI FAMILY (R2)
- L&I violationEXTERIOR STRUCTURE PROTECTIVE TREATMENT
- InspectionL&I investigation
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- PermitAlterations
- PermitAddition and/or Alteration
- PermitNew Construction
- PermitNew Construction or Additions
- PermitAddition and/or Alterations
- PermitRough-In
- LicenseWOLF CHARLES: Rental landlord or residential registration marked inactive
- PermitAddition and/or Alteration
- AppealZBA Permit Denial - Variance
- PermitNew construction, addition, GFA change
- LicenseGOLDEN TRIANGLE INC: Handbill Distribution L&I license filing marked inactive
- LicenseGOLDEN TRIANGLE INC: Handbill Distribution L&I license filing initially issued
- LicenseGOLDEN TRIANGLE INC: Dumpster License - Private Property L&I license filing initially issued
- LicenseWOLF CHARLES: Rental landlord or residential registration initially issued
Verify the public record
Property tax
$17,169/year estimated property tax
2026 taxable assessment $1,226,499 × 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 $2,565,800. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 8815011502026 OPA taxes $1,226,499 of $1,707,000 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.”
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.
Building report
Apartment building
Apartment building, recorded in the City's apartments category. The public record and owner trail follow.
2 open violations
What it is
Apartment building
Apts 5-50 Units Masonry
Owner
610 Kater Street Rk LLC
$ / sq ft
$462
above the $147 median for 2,826 apartments parcels citywide
Corridor
South Street/Front-8th
city commercial corridor
Interior area
5,550 sqft
Lot size
2,320 sqft
Stories
4
Built
1900
Zoning
CMX2
Recorded owner
Who's behind it
610 Kater Street Rk LLC · corporate / LLC owner
• Tax bills mail to 910 Harvest Drive, Blue Bell PA, 19422 — outside Philadelphia
Block context
600 block of S 6th St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 614 S 6th St · 616 S 6th 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.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
WOLF CHARLESInactive
Rental · Initial issue date Apr 1, 2004 · Terminal license date Apr 29, 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.
Open every source row 19 dated rows
- ViolationRENTAL LICENSE MULTI FAMILY (R2)
Case CF-2026-082560 · Violation VI-2026-051209 · Code 9-3902 (2) · OPEN
The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.
- ViolationEXTERIOR STRUCTURE PROTECTIVE TREATMENT
Case CF-2026-082560 · Violation VI-2026-051210 · Code PM15-304.2 · OPEN
The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.
- InvestigationL&I investigation
Case CF-2026-082560 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- CertificationSprinkler Certification
Certification BC-2025-031925 · Certified
Expires 2026-12-03
- CertificationFire Alarm Certification
Certification BC-2023-019949 · Certified
Expires 2025-07-01
- PermitAlterations
Permit PP-2023-004574 · Completed
REPAIR/REPLACE 2" WPD INSTALL 2" BACKFLOW DEVICE
- PermitAddition and/or Alteration
Permit EP-2022-011317 · Completed
Install 600 amp service with 9 gang modular meter bank . Total rewiring for general lighting,110V INTERCONNECTED SMOKE ALARMS, power, and fire alarm. ALL WORK IS TO BE DONE ACCORDING TO APPROVED DRAWINGS-2017 NEC,2016 NFPA-72,2018 PHILA FIRE CODE.
- PermitNew Construction
Permit MP-2022-004878 · Completed
FOR A NEW MECHANICAL INSTALLATION TO AN EXISTING STRUCTURE. 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.
- PermitNew Construction or Additions
Permit PP-2020-007483 · Completed
Interior plumbing 7 WC,7 TUBS,7 LAVATORIES,7 KS,7 LL,7 WH
- PermitAddition and/or Alterations
Permit FP-2022-001831 · Completed
FOR THE INSTALLION OF A NEW FIRE SUPPRESSION SYSTEM COMPLYING WITH NFPA 13R THROUGHOUT AN EXISTING STRUCTURE. INSTALLATION TO INCLUDE 4" MAIN FIRE SERVICE LINE AND 4." AMES DERRINGER 20GX BACKFLOW PREVENTION ASSEMBLY AS PER APPROVED PLANS. ALL WORK SHALL BE PERFORMED BY A FIRE SUPPRESSION CONTRACTOR LICENSED BY THE CITY OF PHILADELPHIA.
- PermitRough-In
Permit FP-2022-001829 · Completed
Rough-In Fire Sprinklers and Standpipes for commercial space and dwelling units. FP-2022-001831 in review.
- License terminal eventWOLF CHARLES: Rental landlord or residential registration marked inactive
License 216880 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- PermitAddition and/or Alteration
Permit CP-2021-006024 · Completed
LEVEL III ALTERATIONS TO INCLUDE FOURTH FLOOR ADDITION AND PARTIAL CHANGE OF OCCUPANCY TO CREATE A SHELL COMMERCIAL SPACE (USE REGISTRATION & FIT-OUT PERMITS REQUIRED PRIOR TO OCCUPANCY) AND SEVEN (7) DWELLING UNITS IN AN EXISTING BUILDING AS PER APPROVED PLANS. BUILDING TO BE FULLY SPRINKLERED PER NFPA 13. *2018 IEBC REVIEW* **SEPARATE PERMITS REQUIRED FOR MEP & FIRE SUPPRESSION WORK** AMENDMENT APPROVED 1/9/24 AMEND ALTERATIONS/ADDITION PERMIT CP-2021-006024 TO CHANGE SPECIAL INSPECTIONS AGENCY AS PER REVISED DOCUMENTS. AMENDMENT APPROVED 07/23/2024 FOR THE AMENDMENT OF PREVIOUSLY APPROVED PERMIT CP-2021-006024 TO DOCUMENT FIRE PUMP ROOM IN BASEMENT FLOOR LEVEL AND CHANGE IN EGRESS STAIR CONFIGURATION ON THE FIRST FLOOR LEVEL. ALL WORK TO BE DONE PER APPROVED PLANS. SEPARATE PERMITS TO BE OBTAINED FOR ALL OTHER WORK.
- AppealZBA Permit Denial - Variance
Appeal ZP-2021-001844 · Completed · Granted with conditions
Related permit ZP-2021-001844 · PERMIT For the erection of a one story addition above the third floor of an existing three story attached structure to create a four story attached structure for the proposed use of Multi-Family Household Living (Eight Units) Size and locat
- PermitNew construction, addition, GFA change
Permit ZP-2021-001844 · Completed
For the erection of a one story addition above an existing attached structure to create a four story attached structure. Size and location per plans.
- License terminal eventGOLDEN TRIANGLE INC: Handbill Distribution L&I license filing marked inactive
License 694480 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventGOLDEN TRIANGLE INC: Handbill Distribution L&I license filing initially issued
License 694480 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventGOLDEN TRIANGLE INC: Dumpster License - Private Property L&I license filing initially issued
License 663635 · Active
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventWOLF CHARLES: Rental landlord or residential registration initially issued
License 216880 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
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 27, 2026, 5:56 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)