2026 assessment
$1.2M
OPA value, not a listing price
Multi-family report
638 N 11th St
8 bd8 ba4 stories5,580 sqftRSA5built 2017
Property at a glanceApartment building
Individual, other or unknown mailing address
ZIP 19123 area
Northern Liberties · Callowhill
600 block of N 11th St
Assessment and City record timeline
Published City assessments for this building 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$53K 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$154K 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$154K 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$1.1M 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$1.1M 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$1.1M 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$1.1M 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$1.5M 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$1.5M 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$1.2M 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 · 2026$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 · 2027$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 ↗
- Deed / sale · 2018Deed / sale $1.1MA 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 · 2015-11-25Zoning/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 ↗
- Permit · 2016-02-19Zoning/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 ↗
- Permit · 2016-11-10Zoning/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 ↗
- Permit · 2017-02-13New 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 · 2017-06-07PlumbingThis 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 · 2017-07-14MechanicalThis 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 · 2017-09-07SuppressionThis permit category usually covers fire-suppression systems or related life-safety 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 · 2017-09-12ElectricalThis permit category usually covers electrical installation, alteration, replacement, or repair. 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 · 2008-06-28VACANT LOT KEEP CLEAN GET LICA 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 · 2008-06-28CLIP VIOLATION NOTICEA 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 · 2012-08-13VACANT LOT STANDARDA 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 · 2012-08-13CLIP VIOLATION NOTICEA 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 · 2015-10-26EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2015-10-26CLIP VIOLATION NOTICEA 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 · 2017-02-07EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2017-02-07CLIP VIOLATION NOTICEA 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 · 2017-09-14DUMPING - PUBLIC PROPERTYA 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 · 2017-09-14CLIP VIOLATION NOTICEA 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 · 2017-10-03WORKMANLIKE- BUILDING CODEA 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 · 2017-10-03DEBRIS REMOVE - CONSTRA 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 · 2017-10-03SWO- CONTRARY TO GOOD PRACTICEA 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 · 2017-10-03BP_BLDGA 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 · 2018-09-25BP_BLDGA 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 · 2023-11-21YAN ZHI YANG: 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 · 2018-10-09JING JUN LIN YANZHI YANG: 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 · 2022-12-07JING JUN LIN YANZHI YANG: 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 · 2024-04-02Fire 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 · 2025-03-28Fire 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 ↗
Property assessmentBlock median & rangeZIP 19123 (Northern Liberties · Callowhill) medianAssessmentDeed / saleL&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 record29 events · exact dates, newest first
- CertificationFire Alarm Certification
- CertificationFire Alarm Certification
- LicenseYAN ZHI YANG: Rental landlord or residential registration initially issued
- LicenseJING JUN LIN YANZHI YANG: Rental landlord or residential registration marked inactive
- LicenseJING JUN LIN YANZHI YANG: Rental landlord or residential registration initially issued
- InspectionBP_BLDG
- Deed / saleDeed / sale $1.1M
- L&I violationWORKMANLIKE- BUILDING CODE
- L&I violationDEBRIS REMOVE - CONSTR
- L&I violationSWO- CONTRARY TO GOOD PRACTICE
- InspectionBP_BLDG
- L&I violationDUMPING - PUBLIC PROPERTY
- L&I violationCLIP VIOLATION NOTICE
- PermitElectrical
- PermitSuppression
- PermitMechanical
- PermitPlumbing
- PermitNew construction
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- PermitZoning/use
- PermitZoning/use
- PermitZoning/use
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- L&I violationVACANT LOT STANDARD
- L&I violationCLIP VIOLATION NOTICE
- L&I violationVACANT LOT KEEP CLEAN GET LIC
- L&I violationCLIP VIOLATION NOTICE
Flags: material assessment exemption; legal basis and term unverified · active rental license · latest deed has shared-name parties; relationship unverified. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$3,360/year estimated property tax
2026 taxable assessment $240,000 × 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 $1,200,000. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 1411366002026 OPA taxes $240,000 of $1,200,000 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.”
The assessment exemption gap
OPA's 2026 roll shows a partial assessment exemption. The annual difference is measurable; the reason for it and what happens after a sale are not established here.
$240,000 taxable basis
Difference to verify+$13,438/year
$1,200,000 scenario basis
The assessment roll does not identify
- Legal basis or program
- Approval or expiration date
- Treatment after a sale
- Current Tax Center balance
Show the assessment math
2026: ($1,200,000 assessed − $960,000 exempt) × 1.3998% ≈ $3,360/year
Full-assessment scenario: $1,200,000 × 1.3998% ≈ $16,798/year
Do not treat the full-assessment scenario as inevitable or assume the current relief transfers. Obtain the approval history and verify the live Tax Center account before relying on either number.
The property, on paper
OPA physical field record.
Bedrooms
8
Bathrooms
8
Stories
4
Interior
5,580 sqft
livable area
Lot
1,474 sqft
Basement
Full, finished
city code A
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
Above average
city code 3
Above averageBelow average
Interior condition
Above average
city code 3
Above averageBelow average
Quality grade
A
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
600 block of N 11th St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 636 N 11th St · 640 N 11th St
L&I license dates · data through Jul 23, 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 23, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
YAN ZHI YANGActive
Rental · Initial issue date Nov 21, 2023 · Filed expiration Nov 20, 2026
JING JUN LIN YANZHI YANGInactive
Rental · Initial issue date Oct 9, 2018 · Terminal license date Dec 7, 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 29 dated rows
- CertificationFire Alarm Certification
Certification BC-2025-008099 · Certified
Expires 2026-03-28
- CertificationFire Alarm Certification
Certification BC-2024-008802 · Certified
Expires 2025-04-02
- License issue eventYAN ZHI YANG: Rental landlord or residential registration initially issued
License 938487 · Active
License event. Registration does not prove present operation or storefront occupancy.
- License terminal eventJING JUN LIN YANZHI YANG: Rental landlord or residential registration marked inactive
License 791219 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventJING JUN LIN YANZHI YANG: Rental landlord or residential registration initially issued
License 791219 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- InvestigationBP_BLDG
Case 607084 · PASSED
The cited inspection visit was marked passed.
- Recorded transfer$1.1M transfer
2018
- ViolationWORKMANLIKE- BUILDING CODE
Case 607084 · Violation 4471512 · Code A-104.1/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationDEBRIS REMOVE - CONSTR
Case 607084 · Violation 4471513 · Code A-104.1/5 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationSWO- CONTRARY TO GOOD PRACTICE
Case 607084 · Violation 4471514 · Code A-504.1/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 607084 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationDUMPING - PUBLIC PROPERTY
Case 604135 · Violation 4452027 · Code CP-800 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 604135 · Violation 4452026 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- PermitElectrical
Permit 791377 · COMPLETED
INSTALL 400AMP MAIN SERVICE,INSTALL METER MODULE AND GROUNDING, ALL WIRING THROUGHOUT RECEPTS,SWITCHES,LIGHTS,SMOKES/CO DETECTOR,PHONE & CABLE TV WIRING AS PER 2008 NEC (CC DISTRICT)
- PermitSuppression
Permit 776143 · COMPLETED
FOR THE INSTALLATION OF A 13R FIRE SUPRESSION SYSTEM FOR A MULTI-FAMILY DWELLING SERVICED BY A 2 INCH FIRE SERVICE LINE WITH A BACK FLOW PREVENTER ASSEMBLY AND FIRE PUMP. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. FIRE SUPPRESSION SYSTEM TO BE INSTALLED IN ACCORDANCE WITH NFPA 13R.
- PermitMechanical
Permit 799935 · COMPLETED
INSTALL (4) HEAT PUMPS WITH DUCTWORK. (MULTI-FAMILY)
- PermitPlumbing
Permit 774835 · COMPLETED
NEW CONSTRUCTION: INTERIOR & EXTERIOR PLUMBING;FOUR-STORY BLDG; ROOF DECK; FOUR-FAMILY DWELLING; 6"LATERAL;1" WATER SERVICE;CURB TRAP& FAI -THE INSTALLATION SHALL COMPLY WITH THE PHILADELPHIA PLUMBING CODE, 2004.
- PermitNew construction
Permit 748762 · COMPLETED
FOR THE CONSTRUCTION OF A FOUR-STORY STRUCTURE WITH PILOTHOUSE TO ACCESS ROOF DECK, FOR USE AS A FOUR-FAMILY DWELLING, AS PER APPROVED PLANS.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 572261 · Violation 4220791 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 572261 · Violation 4220790 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- PermitZoning/use
Permit 722375 · COMPLETED
FOR THE ERECTION OF AN ATTACHED STRUCTURE WITH A ROOF DECK AND ROOF DECK ACCESS STRUCTURE AND A DECK AT THE 2ND FLOOR REAR. SIZE AND LOCATION AS SHOWN ON PLANS/APPLICATION. FOR USE AS MULTI-FAMILY HOUSEHOLD LIVING (FOUR (4) DWELLINGS). NO SIGNS/PARKING ON THIS APPLICATION.
- PermitZoning/use
Permit 661766 · COMPLETED
FOR THE ERECTION OF FOUR STORY STRUCTURE WITH FOUR STORY SIDE COURT, TO CONTAIN THREE DWELLING UNITS FROM CELLAR-4TH FL, WITH REAR DECK AT 2ND FLOOR AND ROOF DECK AN PILOT HOUSE(TO CONTAIN STAIRS AND LANDING ONLY) AS PER PLANS.
- PermitZoning/use
Permit 652449 · COMPLETED
FOR THE ERECTION OF ONE FOUR STORY STRUCTURE, TO CONTAIN (3) DWELLING UNITS FROM CELLAR-4TH FLOOR AS PER PLANS
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 507789 · Violation 3750612 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 507789 · Violation 3750611 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT LOT STANDARD
Case 343837 · Violation 2536079 · Code PM-306.0/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 343837 · Violation 2536078 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT LOT KEEP CLEAN GET LIC
Case 167148 · Violation 1431137 · Code PM-306.0/91 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 167148 · Violation 1431136 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
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 24, 2026, 4:50 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)