2026 assessment
$144K
OPA value, not a listing price
Mixed-use property report
1900 Waterloo St
2,128 sqftCMX2built 1915
Property at a glanceApartment building
1900 Waterloo LLC
2027 published assessment
$123K
Future roll, not the current tax bill
Location
1900 block of Waterloo St
ZIP 19122
Neighborhood area
Olde Kensington · North Philadelphia
Approximate · based on ZIP 19122
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 $123,400. It is not yet the billed-year tax basis.
- OPA assessment · 2016$127K 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$127K 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$83K 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$88K 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$88K 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$88K 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$88K 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$163K 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$163K 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$144K 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$144K 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$123K 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 · 2019-04-10UseThis permit category usually covers the property’s allowed use, dimensions, occupancy, or site configuration. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2019-05-14Interior Non-Load-Bearing Wall Demo.This 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 · 2019-08-26UseThis permit category usually covers the property’s allowed use, dimensions, occupancy, or site configuration. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2019-08-26Addition 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 · 2019-10-21PlumbingThis permit category usually covers water, drainage, fixtures, or other plumbing 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 · 2019-11-22Major alterationA broad legacy permit work category for a substantial building alteration. It can include changed layouts, partitions, fixtures, finishes, structural work, or occupancy-related work, but only the approved scope and plans say what this permit actually authorized; separate trade permits may be required.What Philadelphia building permits can cover ↗
- Permit · 2020-01-30AlterationsThis 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 · 2020-02-18Rough-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 · 2020-05-01New 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 · 2020-12-24Addition 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 · 2025-05-02Change of UseThis permit category usually covers the property’s allowed use, dimensions, occupancy, or site configuration. 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 · 2016-02-22VACANT STRUCTURE LICENSEA 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 · 2016-02-22HCEU INSP (Housing Code Enforcement Unit inspection)A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended.What Philadelphia inspections check ↗
- L&I violation · 2019-11-08EXTERIOR STRUCT UNSAFE COND 7A 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 · 2019-11-08UNSAFE STRUCTUREA 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 · 2019-11-08CSUINITIALA 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 ↗
- L&I violation · 2019-11-12PERMB- WK DONE W/O NOTIFY INSPA 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 · 2019-11-12ARCHITECT/ENGINEER SERVICESA 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 · 2006-05-26BC INSP (likely: building-code inspection)Legacy inspection shorthand; confirm the inspection type and scope in the City case file.What Philadelphia inspections check ↗
- Inspection · 2006-07-11BC INSP (likely: building-code inspection)Legacy inspection shorthand; confirm the inspection type and scope in the City case file.What Philadelphia inspections check ↗
- Inspection · 2016-03-24HCEU INSP (Housing Code Enforcement Unit inspection)A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended.What Philadelphia inspections check ↗
- Inspection · 2016-05-09HCEU INSP (Housing Code Enforcement Unit inspection)A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended.What Philadelphia inspections check ↗
- Inspection · 2016-06-29PRECOURT (likely: pre-court compliance inspection)A follow-up before or during enforcement escalation; confirm the case sequence in the City file.What Philadelphia inspections check ↗
- Inspection · 2020-01-23CSUINITIALA 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 · 2026-03-231900 Waterloo LLC: 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 · 2013-12-06CATHERINE GREEN: Vacant Residential Property / Lot 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 · 2018-04-29CATHERINE GREEN: Vacant Residential Property / Lot 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 ↗
Property assessmentAssessmentL&I violationPermitInspectionLicense
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 record27 events · exact dates, newest first
- License1900 Waterloo LLC: Rental landlord or residential registration initially issued
- PermitChange of Use
- PermitAddition and/or Alterations
- PermitNew Construction
- PermitRough-In
- PermitAlterations
- InspectionCSUINITIAL
- PermitMajor alteration
- L&I violationPERMB- WK DONE W/O NOTIFY INSP
- L&I violationARCHITECT/ENGINEER SERVICES
- L&I violationEXTERIOR STRUCT UNSAFE COND 7
- L&I violationUNSAFE STRUCTURE
- InspectionCSUINITIAL
- PermitPlumbing
- PermitUse
- PermitAddition and/or Alteration
- PermitInterior Non-Load-Bearing Wall Demo.
- PermitUse
- LicenseCATHERINE GREEN: Vacant Residential Property / Lot landlord or residential registration marked inactive
- InspectionPRECOURT (likely: pre-court compliance inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- L&I violationVACANT STRUCTURE LICENSE
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- LicenseCATHERINE GREEN: Vacant Residential Property / Lot landlord or residential registration initially issued
- InspectionBC INSP (likely: building-code inspection)
- InspectionBC INSP (likely: building-code inspection)
Verify the public record
Property tax
$2,020/year estimated property tax
2026 taxable assessment $144,300 × 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 $123,400. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 8715249702026 taxable assessment equals the full assessed value.
Historical delinquency sources Record found
This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.
A separate historical parcel ledger ending in 2016 records $2,797.39 and a lien entry. It is shown as historical context only.
2014$492.99 total · $0.00 principal · $131.58 interest · $136.46 penalty2016$2,304.40 total · $2,036.36 principal · $30.54 interest · $20.36 penalty
For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”
Property report
Mixed-use property
Apartment building, recorded in the City's mixed-use category. The public record and owner trail follow.
Historical lien entry · through 2016
What it is
Apartment building
Str/Off+Apt 3 Sty Masonry
Owner
1900 Waterloo LLC
$ / sq ft
$58
assessed value ÷ interior sqft
Licensed units
2
active rental license
Interior area
2,128 sqft
Lot size
636 sqft
Built
1915
Zoning
CMX2
Recorded owner
Who's behind it
1900 Waterloo LLC · corporate / LLC owner
• Tax bills mail to 1436 E Columbia Ave, Philadelphia PA, 19122
• Holds an active rental license for this address
Block context
1900 block of Waterloo St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1902 Waterloo St · 1904 Waterloo St
L&I license dates · data through Jul 24, 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 24, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
1900 Waterloo LLCActive
Rental · Initial issue date Mar 23, 2026 · Filed expiration Mar 22, 2027
CATHERINE GREENInactive
Vacant Residential Property / Lot · Initial issue date Dec 6, 2013 · Terminal license date Apr 29, 2018
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 27 dated rows
- License issue event1900 Waterloo LLC: Rental landlord or residential registration initially issued
License 1002816 · Active
License event. Registration does not prove present operation or storefront occupancy.
- PermitChange of Use
Permit ZP-2025-004235 · Issued
Personal Services
- PermitAddition and/or Alterations
Permit MP-2020-006491 · Completed
1st & 3rd Floor (Wall hung Ductless Mini Split 12000 BTU's / 29.4 SEER 98% Efficiency 1st & 3rd Floor (Outdoor Compressor) 1.5 tons 2nd FLoor Ducted Mini Split (2 registers) 1200 BTU's 29.4 Seer 98% Efficiency 2nd Floor (Outdoor Compressor) 1.5 tons
- PermitNew Construction
Permit 1050472 · Completed
WIRE 2 APTS AND 1 COMMERCIAL SPACE. NEW 300 AMP SERVICE WITH 4 METERS AND 4 100AMP PANELS. WIRE ANAD INSTALL NEW SWITCHES, RECEPTACLES, HARDWARE SMOKE DETECTORS AND LIGHTING. INSTALL NEW FIRE ALARM SYSTEM. INSTALL CAT6 WIRING FOR APTS LONGEST RUN 100 WIRE 2 APTS AND 1 COMMERCIAL SPACE. NEW 300 AMP SERVICE WITH 4 METERS AND 4 100AMP PANELS. WIRE ANAD INSTALL NEW SWITCHES, RECEPTACLES, HARDWARE SMOKE DETECTORS AND LIGHTING. INSTALL NEW FIRE ALARM SYSTEM. INSTALL CAT6 WIRING FOR APTS LONGEST RUN 100
- PermitRough-In
Permit 1050472-RI · Completed
WIRE 2 APTS AND 1 COMMERCIAL SPACE. NEW 300 AMP SERVICE WITH 4 METERS AND 4 100AMP PANELS. WIRE ANAD INSTALL NEW SWITCHES, RECEPTACLES, HARDWARE SMOKE DETECTORS AND LIGHTING. INSTALL NEW FIRE ALARM SYSTEM. INSTALL CAT6 WIRING FOR APTS LONGEST RUN 100 WIRE 2 APTS AND 1 COMMERCIAL SPACE. NEW 300 AMP SERVICE WITH 4 METERS AND 4 100AMP PANELS. WIRE ANAD INSTALL NEW SWITCHES, RECEPTACLES, HARDWARE SMOKE DETECTORS AND LIGHTING. INSTALL NEW FIRE ALARM SYSTEM. INSTALL CAT6 WIRING FOR APTS LONGEST RUN 100
- PermitAlterations
Permit 1020887 · Completed
INSTALL 8 FIXTURES AS PER 2004 PPC
- InvestigationCSUINITIAL
Case 715299 · PASSED
The cited inspection visit was marked passed.
- PermitMajor alteration
Permit 1027522 · COMPLETED
MAKE SAFE PERMIT TO COMPLY WITH VIOLATION #715299 TO INCLUDE WALL BRACING DETAILS AS PER ENGINEER APPROVED PLANS FOR WORK UNDER PERMIT #977888. SEPERATE PERMITS REQUIRED FOR ADDITIONAL ALTERATIONS NOT SPECIFICALLY ADDRESSED IN ENGINEER'S RERPORT/PLANS.
- ViolationPERMB- WK DONE W/O NOTIFY INSP
Case 977888 · Violation 5242184 · Code A-302.11/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationARCHITECT/ENGINEER SERVICES
Case 977888 · Violation 5242185 · Code A-304.1/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXTERIOR STRUCT UNSAFE COND 7
Case 715299 · Violation 5239926 · Code PM15-304.1G · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationUNSAFE STRUCTURE
Case 715299 · Violation 5239925 · Code PM15-108.1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationCSUINITIAL
Case 715299 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitPlumbing
Permit 1020876 · COMPLETED
REPLACE 3/4"WATER SERVICE-PA1#20192880677-"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"
- PermitUse
Permit 1004744 · COMPLETED
FOR USE AS A MAINTENANCE AND REPAIR OF CONSUMER GOODS (TAILOR OFFICE) ON THE FIRST FLOOR WITH TWO-FAMILY HOUSEHOLD LIVING ABOVE. NO NEW SIGNS ARE INCLUDED WITH THIS PERMIT.
- PermitAddition and/or Alteration
Permit 977888 · Completed
FOR THE LEVEL III ALTERATION WITHOUT CHANGE OF OCCUPANCY CLASSIFICATION TO CREATE TAILOR OFFICE ON THE 1ST FLOOR AND TWO-FAMILY HOUSEHOLD LIVING ABOVE. BUILDING IS NOT SPRINKLERED. SEPARATE PERMITS REQUIRED FOR MEP WORK.
- PermitInterior Non-Load-Bearing Wall Demo.
Permit 976093 · 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.
- PermitUse
Permit 965734 · COMPLETED
CHANGE USE OF 2ND & 3RD FLOOR FROM SINGLE FAMILY HOUSE HOLD LIVING TO TWO (2) FAMILY HOUSEHOLD LIVING NO CHHANGE TO EXISTING COMMERCIAL USE OF 1ST FLOOR/ BSTM NO NEW SIGNS ARE INCLUDED WITH THIS PERMIT
- License terminal eventCATHERINE GREEN: Vacant Residential Property / Lot landlord or residential registration marked inactive
License 611978 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 520959 · PASSED
A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 520959 · CLOSED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 520959 · FAILED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationVACANT STRUCTURE LICENSE
Case 520959 · Violation 3929326 · Code 9-3905 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 520959 · FAILED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- License issue eventCATHERINE GREEN: Vacant Residential Property / Lot landlord or residential registration initially issued
License 611978 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- InvestigationBC INSP (likely: building-code inspection)
Case 65327 · CLOSED
Legacy inspection shorthand; confirm the inspection type and scope in the City case file. City marked the record closed; open the case for the closing reason.
- InvestigationBC INSP (likely: building-code inspection)
Case 65327 · FAILED
Legacy inspection shorthand; confirm the inspection type and scope in the City case file. The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Unavailable when this report assembled: certifications. Unavailable does not mean no record.
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
- Neighborhood income & rents: US Census ACS 5-year estimates
- Historical mortgage rates: Freddie Mac Primary Mortgage Market Survey, annual averages
- Imagery: Street photo © Google · Aerial © Esri, Maxar
Methodology & freshness
This report was assembled Jul 25, 2026, 6:17 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: unavailable. “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)