2026 assessment
$577K
OPA value, not a listing price
Apartment building report
920 N 51st St
Research this property with Analyst →3 stories38,352 sqftRM2built 2022
Property at a glanceApartments
West Mill Place LP
2027 published assessment
$657K
Future roll, not the current tax bill
Location
900 block of N 51st St
ZIP 19131
Neighborhood area
Wynnefield · West Park
Approximate · based on ZIP 19131
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 $657,000. It is not yet the billed-year tax basis.
- OPA assessment · 2023$558K 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$558K 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$577K 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$577K 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$657K 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 · 2021-05-27New 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 · 2021-08-29New 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 · 2022-02-15Addition 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 · 2022-02-16Sitework with Onsite Utility ServicesThis 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 · 2022-03-10New 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 · 2022-03-18New 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 · 2022-03-28New 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 · 2022-06-23New 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 · 2022-07-11Rough-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 · 2022-11-08New 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 ↗
- L&I violation · 2025-10-15FDC INSPECTION, TESTING & MAINTENANCEA 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 · 2025-10-15L&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 · 2025-11-19L&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 · 2023-05-08West Mill Place LP (West Mill Place LP): 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 ↗
- Certification · 2024-10-21Sprinkler 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 · 2024-10-21Fire 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 · 2025-10-09Sprinkler 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 · 2025-10-09Sprinkler 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 · 2025-10-09Fire 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 · 2025-10-13Sprinkler 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 · 2025-10-21Sprinkler 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 assessmentAssessmentL&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 record21 events · exact dates, newest first
- InspectionL&I investigation
- CertificationSprinkler Certification
- L&I violationFDC INSPECTION, TESTING & MAINTENANCE
- InspectionL&I investigation
- CertificationSprinkler Certification
- CertificationSprinkler Certification
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- LicenseWest Mill Place LP (West Mill Place LP): Rental landlord or residential registration initially issued
- PermitNew Construction
- PermitRough-In
- PermitNew Construction
- PermitNew Construction
- PermitNew Construction or Additions
- PermitNew Construction or Additions
- PermitSitework with Onsite Utility Services
- PermitAddition and/or Alteration
- PermitNew Construction
- PermitNew construction, addition, GFA change
Verify the public record
Property tax
$2,018/year estimated property tax
2026 taxable assessment $144,150 × 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 $657,000. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 8860000012026 OPA taxes $144,150 of $576,600 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.”
Building report
Apartment building
Apartments, recorded in the City's apartments category. The public record and owner trail follow.
What it is
Apartments
Vacant Land Commer < Acre
Owner
West Mill Place LP
$ / sq ft
$17
below the $147 median for 2,826 apartments parcels citywide
Licensed units
30
active rental license
Interior area
38,352 sqft
Lot size
25,329 sqft
Stories
3
Built
2022
Zoning
RM2
Recorded owner
Who's behind it
West Mill Place LP · corporate / LLC owner
• Tax bills mail to 106 W Main St, Norristown PA, 19401 — outside Philadelphia
• Holds an active rental license for this address
Block context
900 block of N 51st St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 938 N 51st St
L&I license dates · data through Jul 27, 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 27, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
West Mill Place LP (West Mill Place LP)Active
Rental · Initial issue date May 8, 2023 · Filed expiration May 7, 2027
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 21 dated rows
- InvestigationL&I investigation
Case CF-2025-113718 · PASSED
The cited inspection visit was marked passed.
- CertificationSprinkler Certification
Certification BC-2025-027869 · Certified
Expires 2026-10-21
- ViolationFDC INSPECTION, TESTING & MAINTENANCE
Case CF-2025-113718 · Violation VI-2025-081804 · Code F-912.7 · COMPLIED
Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationL&I investigation
Case CF-2025-113718 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- CertificationSprinkler Certification
Certification BC-2025-027730 · Deficient
- CertificationSprinkler Certification
Certification BC-2025-026994 · Deficient
- CertificationSprinkler Certification
Certification BC-2025-026997 · Certified
Expires 2026-10-09
- CertificationFire Alarm Certification
Certification BC-2025-026989 · Certified
Expires 2026-10-09
- CertificationSprinkler Certification
Certification BC-2024-029214 · Certified
Expires 2025-10-21
- CertificationFire Alarm Certification
Certification BC-2024-029235 · Certified
Expires 2025-10-21
- License issue eventWest Mill Place LP (West Mill Place LP): Rental landlord or residential registration initially issued
License 923105 · Active
License event. Registration does not prove present operation or storefront occupancy.
- PermitNew Construction
Permit EP-2022-006883 · Completed
Install a new 2000 amp service complete with panels, meters, and grounding. Wire throughout 30 units, community room, reception area, and manager's office. Includes all switches, receptacles, lights, smoke detectors, phone and cable television wire as per 2017 NEC code. Install new fire alarm system and intercom system complete in accordance with attached drawings as per 2016 NFPA 72.
- PermitRough-In
Permit EP-2022-006882 · Completed
rough in for Install a new 1800 amp service complete with panels, meters, and grounding wire to 30 units, community room, reception area, and manager's office. Includes all switches, receptacles, lights, smoke detectors, phone and cable television wire as per 2017 NEC code. Install new fire alarm system and intercom system complete in accordance with attached drawings as per nfpa 72
- PermitNew Construction
Permit FP-2022-000671 · Completed
FOR THE INSTALLATION OF A 4-INCH FIRE SERVICE LINE FOR AN AUTOMATIC FIRE SUPPRESSION SPRINKLER SYSTEM WITH A BACKFLOW PREVENTION ASSEMBLY IN ACCORDANCE WITH NFPA 13. ALL WORK SHALL BE DONE IN ACCORDANCE WITH APPROVED PLANS/HYDRAULIC CALCULATIONS.
- PermitNew Construction
Permit MP-2022-001335 · Completed
FOR THE INSTALLATION OF AN HVAC MECHANICAL SYSTEM TO INCLUDE SPLIT SYSTEM HEAT PUMPS, MINI-SPLIT SYSTEM HEAT PUMPS, AIR DEVICES, DIFFUSERS/REGISTERS/GRILLES, AND ASSOCIATED DUCTWORK. APPLIANCE TO BE INSTALLED IN ACCORDANCE WITH MANUFACTURER'S SPECIFICATIONS. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT THE DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS ARE REQUIRED FOR ALL OTHER WORK.
- PermitNew Construction or Additions
Permit PP-2022-002000 · Completed
Plumbing Permit for combo SP-2022-000009
- PermitNew Construction or Additions
Permit PP-2022-002931 · Completed
INSTALL 2 AREA DRAINS, 30 FLOOR DRAINS, 5 HOSE BIBBS, 30 HOT WATER HEATERS, 31 KITCHEN SINKS, 42 LAVATORIES, 30 SHOWERS, 40 WATER CLOSETS, 1 ELECTRIC WATER COOLER, 3 MOP SINKS AND 8 WASHING MACHINE BOXES ACCORDING TO THE 2018 PPC.
- PermitSitework with Onsite Utility Services
Permit SP-2022-000009 · Completed
FOR EARTH DISTURBANCE AS PER PLANS.
- PermitAddition and/or Alteration
Permit EP-2022-001128 · Completed
temporary power for construction trailer as per 2017 nec
- PermitNew Construction
Permit CP-2021-002315 · Completed
FOR THE ERECTION OF A DETACHED STRUCTURE USED AS MULTI-FAMILY HOUSEHOLD LIVING [30 DWELLING UNITS] WITH ACCESSORY PARKING SPACES, COMMUNITY ROOM, ROOF DECK AND UTILITIES AS PER APPROVED PLANS. BUILDING TO BE FULLY SPRINKLERED. SEPARATE PERMITS REQUIRED FOR M.E.P.S WORK. SEPARATE APPROVAL FROM PA L&I REQUIRED FOR ELEVATOR INSTALLATION.
- PermitNew construction, addition, GFA change
Permit ZP-2021-005665 · Issued
FOR THE ERECTION OF A DETACHED STRUCTURE WITH ACCESSORY PARKING SPACES FOR FIVE(5) VEHICLES. SIZES AND LOCATION AS SHOWN IN PLAN.
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 27, 2026, 9:53 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)