2026 assessment
$220K
OPA value, not a listing price
House report
1803 Waterloo St
2 bd1 ba2 stories832 sqftRSA5built 1915
Property at a glanceHouse
Individual, other or unknown mailing address
ZIP 19122 area
Olde Kensington · North Philadelphia
1800 block of Waterloo St
Assessment and City record timeline
Published City assessments for this house against its block and ZIP. Dated City filings are marked on the same line. Select one to read it. Assessments are tax-roll values, not sale prices or appraisals.
- OPA assessment · 2016$29K 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$29K 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$29K 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$101K 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$100K 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$100K 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$100K 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$176K 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$176K 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$220K 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$220K 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$299K 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 ↗
- Deed / sale · 2008Deed / sale $21KA recorded real-estate document or transfer event. The amount and date can be useful history, but the underlying deed and transfer-tax filing control the parties, consideration, and legal effect.How to read the recorded document ↗
- Deed / sale · 2020Deed / sale $160KA recorded real-estate document or transfer event. The amount and date can be useful history, but the underlying deed and transfer-tax filing control the parties, consideration, and legal effect.How to read the recorded document ↗
- Deed / sale · 2025Deed / sale $190KA recorded real-estate document or transfer event. The amount and date can be useful history, but the underlying deed and transfer-tax filing control the parties, consideration, and legal effect.How to read the recorded document ↗
- Permit · 2021-05-27Addition 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 · 2021-06-21Addition 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 · 2021-07-01AlterationsThis 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 · 2021-07-30Addition 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 ↗
- L&I violation · 2008-10-31PROSEC- EMERG IMMED RIA 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 · 2008-10-31HEAT CONTINUOUS SUPPLY-RESA 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 · 2008-10-31INT S-DOOR REPR/REPLCA 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 · 2008-10-31EXT S-WINDOW REPAIR/MAINTAIN (Repair or maintain exterior windows)Repair or maintain exterior windowsHow L&I violations and orders work ↗
- L&I violation · 2008-10-31INT S-DOOR INSTALL APP LOCKA 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 · 2008-10-31INT/EXT HANDRAIL REQA 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 · 2008-10-31LICENSE-RES SFD/2FDA 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 · 2008-10-31SD-REQD EXIST GROUP R (Smoke detectors required in an existing residential occupancy)Smoke detectors required in an existing residential occupancyHow L&I violations and orders work ↗
- L&I violation · 2008-10-31EXT S-WINDOW WEATHERTIGHTA 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 · 2008-10-31HCEU 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 · 2021-05-11ALTER INTERIOR PORTIONA 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 · 2021-05-11L&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 ↗
- Inspection · 2008-11-28HCEU 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 · 2021-06-11L&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 · 2022-12-09Feng Chen,Bi Yun Lin: 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 · 2025-12-08Feng Chen,Bi Yun Lin: Rental landlord or residential registration marked closedA 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 · 2008-11-06MILAGRO MERCADO: 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 · 2020-04-29MILAGRO MERCADO: 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 ↗
- License · 2003-04-17KERAK ANN: 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 · 2008-02-04KERAK ANN: 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 ↗
Property assessmentBlock median & rangeZIP 19122 (Olde Kensington · North Philadelphia) medianAssessmentDeed / saleL&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
- LicenseFeng Chen,Bi Yun Lin: Rental landlord or residential registration marked closed
- Deed / saleDeed / sale $190K
- LicenseFeng Chen,Bi Yun Lin: Rental landlord or residential registration initially issued
- PermitAddition and/or Alterations
- PermitAlterations
- PermitAddition and/or Alteration
- InspectionL&I investigation
- PermitAddition and/or Alteration
- L&I violationALTER INTERIOR PORTION
- InspectionL&I investigation
- LicenseMILAGRO MERCADO: Rental landlord or residential registration marked inactive
- Deed / saleDeed / sale $160K
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- LicenseMILAGRO MERCADO: Rental landlord or residential registration initially issued
- L&I violationPROSEC- EMERG IMMED RI
- L&I violationHEAT CONTINUOUS SUPPLY-RES
- L&I violationINT S-DOOR REPR/REPLC
- L&I violationEXT S-WINDOW REPAIR/MAINTAIN (Repair or maintain exterior windows)
- L&I violationINT S-DOOR INSTALL APP LOCK
- L&I violationINT/EXT HANDRAIL REQ
- L&I violationLICENSE-RES SFD/2FD
- L&I violationSD-REQD EXIST GROUP R (Smoke detectors required in an existing residential occupancy)
- L&I violationEXT S-WINDOW WEATHERTIGHT
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- LicenseKERAK ANN: Rental landlord or residential registration marked inactive
- Deed / saleDeed / sale $21K
- LicenseKERAK ANN: Rental landlord or residential registration initially issued
Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$3,084/year estimated property tax
2026 taxable assessment $220,300 × 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 $299,400. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 1830766002026 taxable assessment equals the full assessed value.
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.”
The property, on paper
OPA physical field record.
Bedrooms
2
Bathrooms
1
Stories
2
Interior
832 sqft
livable area
Lot
520 sqft
Basement
Full, unfinished
city code C
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
Above average
city code 3
Above averageBelow average
Quality grade
C
assessor's grade
ABCDE
Zoning
RSA5
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
1800 block of Waterloo St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1801 Waterloo St · 1805 Waterloo 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.
Feng Chen,Bi Yun LinClosed
Rental · Initial issue date Dec 9, 2022 · Terminal license date Dec 8, 2025
MILAGRO MERCADOInactive
Rental · Initial issue date Nov 6, 2008 · Terminal license date Apr 29, 2020
KERAK ANNInactive
Rental · Initial issue date Apr 17, 2003 · Terminal license date Feb 4, 2008
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 terminal eventFeng Chen,Bi Yun Lin: Rental landlord or residential registration marked closed
License 912180 · Closed
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$190K transfer
2025
- License issue eventFeng Chen,Bi Yun Lin: Rental landlord or residential registration initially issued
License 912180 · Closed
License event. Registration does not prove present operation or storefront occupancy.
- PermitAddition and/or Alterations
Permit MP-2021-004639 · Completed
EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES For the installation of New Ductwork, Registers/Grilles/Diffusers, and Warm-Air Appliances as per attached standards. Deviations from these standards require submission of construction and site plans. install a 2.5 AC with a 80% 70k BTU gas furnace Install all ductworks associated Total registers and grills: 11
- PermitAlterations
Permit PP-2021-010935 · Completed
Replace fixture:(1)kitchen sink,(1)lavatory,(1)bath tub(1)wc
- PermitAddition and/or Alteration
Permit EP-2021-006488 · Completed
rewire(9) lights fixture,(6)switches,(20)receptacles,(6)smoke detectors,(1)dryer outlet on existing 100 amp panel as per 2014 nec
- InvestigationL&I investigation
Case CF-2021-037237 · PASSED
The cited inspection visit was marked passed.
- PermitAddition and/or Alteration
Permit RP-2021-007919 · Completed
EZ PERMIT STANDARDS ALTERATIONS- For alterations to an Existing One Family Dwelling as per attached standard. Deviations from this standard will result in permit revocation and require submission of construction plans. STRUCTURAL ALTERATION OR REPAIR IS EXPRESSLY PROHIBITED UNDER THIS PERMIT. PROHIBITED STRUCTURAL WORK INCLUDES ANY MODIFICATION TO EXTERIOR WALLS, PARTY WALLS, FLOOR/ROOF FRAMING OR FOUNDATIONS; UNDERPINNING AND EXCAVATIONS (I.E. DIGGING IN BASEMENT). NO WORK PERMITTED IN THE BASEMENT. INSTALL KITCHEN CABINET, INSTALL NEW WOOD FLOOR, PAINTING ALL WALLS, REPLACE ONE RESTROOM HANDSINK, INSTALL A NEW BATHROOM ACCORDING TO THE 2015 IRC.
- ViolationALTER INTERIOR PORTION
Case CF-2021-037237 · Violation VI-2021-028177 · Code A-301.1/4 · COMPLIED
Resolution: COMPLIED - PERMIT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationL&I investigation
Case CF-2021-037237 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- License terminal eventMILAGRO MERCADO: Rental landlord or residential registration marked inactive
License 460323 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$160K transfer
2020
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 184184 · PASSED
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 passed.
- License issue eventMILAGRO MERCADO: Rental landlord or residential registration initially issued
License 460323 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- ViolationPROSEC- EMERG IMMED RI
Case 184184 · Violation 1145274 · Code A-503.1/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationHEAT CONTINUOUS SUPPLY-RES
Case 184184 · Violation 1145283 · Code PM-406.2/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationINT S-DOOR REPR/REPLC
Case 184184 · Violation 1145282 · Code PM-305.4/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT S-WINDOW REPAIR/MAINTAIN (Repair or maintain exterior windows)
Case 184184 · Violation 1145281 · Code PM-304.8/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationINT S-DOOR INSTALL APP LOCK
Case 184184 · Violation 1145279 · Code PM-305.5/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationINT/EXT HANDRAIL REQ
Case 184184 · Violation 1145278 · Code PM-602.3/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationLICENSE-RES SFD/2FD
Case 184184 · Violation 1145276 · Code PM-102.3/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationSD-REQD EXIST GROUP R (Smoke detectors required in an existing residential occupancy)
Case 184184 · Violation 1145275 · Code FC-907.3/20 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT S-WINDOW WEATHERTIGHT
Case 184184 · Violation 1145277 · Code PM-304.8/7 · 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 184184 · 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 terminal eventKERAK ANN: Rental landlord or residential registration marked inactive
License 228719 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$21K transfer
2008
- License issue eventKERAK ANN: Rental landlord or residential registration initially issued
License 228719 · 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
- 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 26, 2026, 11:35 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)