2026 assessment
$296K
OPA value, not a listing price
Multi-family report
906 S 51st St
1,615 sqftRM1built 1920
Property at a glanceApartment building
Entity-held
ZIP 19143 area
Cedar Park · Kingsessing
900 block of S 51st 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$102K 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$102K 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$102K 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$155K 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$178K 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$178K 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$178K 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$296K 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$296K 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$296K 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$296K 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$387K 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 · 2020Deed / sale $157KA 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 · 2017-03-03AlterationThis 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 · 2017-04-13ElectricalThis 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 ↗
- Permit · 2017-11-07PlumbingThis 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 · 2020-05-26New 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 · 2020-07-28Addition 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 · 2020-08-31New 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 · 2020-09-04AlterationsThis 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 · 2020-09-23AlterationsThis 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 · 2020-10-29Addition 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 · 2020-11-02Addition 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 · 2019-06-21ONE AND TWO FAMILY (R3)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 · 2019-06-21EXTERIOR AREA SANITATIONA 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 · 2019-06-21VACANT STRUCTURE AND LANDA 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 · 2019-06-21EXTERIOR AREA WEEDSA 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 · 2019-06-21EXTERIOR STRUCT ROOF DRAINAGEA 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 · 2019-06-21HCEU 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 · 2020-02-14EXTERIOR STRUCT ROOF DRAINAGEA 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 · 2020-02-14VACANT 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 · 2020-02-13HCEU 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 · 2020-02-13HCEU 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 · 2020-03-24L&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 · 2020-12-21L&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 · 2023-07-07BGP Pentridge St 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 ↗
Property assessmentBlock median & rangeZIP 19143 (Cedar Park · Kingsessing) 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 record24 events · exact dates, newest first
- LicenseBGP Pentridge St LLC: Rental landlord or residential registration initially issued
- InspectionL&I investigation
- PermitAddition and/or Alterations
- PermitAddition and/or Alteration
- PermitAlterations
- PermitAlterations
- PermitNew Construction
- PermitAddition and/or Alteration
- PermitNew construction, addition, GFA change
- InspectionL&I investigation
- L&I violationEXTERIOR STRUCT ROOF DRAINAGE
- L&I violationVACANT STRUCTURE LICENSE
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- Deed / saleDeed / sale $157K
- L&I violationONE AND TWO FAMILY (R3)
- L&I violationEXTERIOR AREA SANITATION
- L&I violationVACANT STRUCTURE AND LAND
- L&I violationEXTERIOR AREA WEEDS
- L&I violationEXTERIOR STRUCT ROOF DRAINAGE
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- PermitPlumbing
- PermitElectrical
- PermitAlteration
Flags: material assessment exemption; legal basis and term unverified · active rental license · historical tax ledger through 2016 recorded $5K with a lien entry. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$2,058/year estimated property tax
2026 taxable assessment $147,000 × 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 $387,300. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 5110263002026 OPA taxes $147,000 of $296,000 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.
See the assessment math →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 $5,048.84 and a lien entry. It is shown as historical context only.
1996$100.68 total · $0.00 principal · $72.15 interest · $3.35 penalty1997$268.38 total · $0.00 principal · $222.54 interest · $10.64 penalty1998$534.30 total · $0.00 principal · $461.27 interest · $22.78 penalty1999$518.23 total · $0.00 principal · $446.11 interest · $22.78 penalty2001$468.95 total · $0.00 principal · $399.62 interest · $22.78 penalty2002$452.83 total · $0.00 principal · $381.72 interest · $22.78 penalty2004$404.23 total · $0.00 principal · $334.65 interest · $22.78 penalty2006$81.38 total · $0.00 principal · $52.43 interest · $4.22 penalty2009$59.45 total · $0.00 principal · $28.70 interest · $4.56 penalty2012$195.03 total · $33.61 principal · $103.44 interest · $20.25 penalty2013$863.04 total · $586.11 principal · $167.05 interest · $41.03 penalty2014$1,102.34 total · $753.55 principal · $146.94 interest · $52.75 penalty
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.
$147,000 taxable basis
Difference to verify+$2,085/year
$296,000 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: ($296,000 assessed − $149,000 exempt) × 1.3998% ≈ $2,058/year
Full-assessment scenario: $296,000 × 1.3998% ≈ $4,143/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.
Interior
1,615 sqft
livable area
Lot
1,213 sqft
Exterior condition
New / rehabbed
city code 2
New / rehabbed
Interior condition
New / rehabbed
city code 2
New / rehabbed
Quality grade
C
assessor's grade
ABCDE
Zoning
RM1
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Recorded owner
Who's behind it
Bgp Pentridge St LLC · corporate / LLC owner
• Tax bills mail to 490 Merkle St, Philadelphia PA, 19128
• Holds an active rental license for this address
Block context
900 block of S 51st St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 904 S 51st St · 908 S 51st 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.
BGP Pentridge St LLCActive
Rental · Initial issue date Jul 7, 2023 · Filed expiration Jul 6, 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 24 dated rows
- License issue eventBGP Pentridge St LLC: Rental landlord or residential registration initially issued
License 927941 · Active
License event. Registration does not prove present operation or storefront occupancy.
- InvestigationL&I investigation
Case 724390 · PASSED
The cited inspection visit was marked passed.
- PermitAddition and/or Alterations
Permit MP-2020-005233 · Completed
For the installation of new ductwork, registers, grills and diffusers, and warm-air appliances without submitting plans by meeting the Conditions and Design Limitations of the EZ Ductwork & Warm-Air Appliances Permit Standard. Any deviations from this permit standard will result in permit revocation.
- PermitAddition and/or Alteration
Permit EP-2020-005775 · Completed
INSTALL 300AMP SERVICE- TOTAL REWIRE THREE(3) FAMILY DWELLING THROUGHOUT,110V INTER-CONNECTED SMOKE ALARMS .INSTALL COMPLETE FIRE ALARM SYSTEM W/ LOW FREQUENCY SOUND IN ALL SLEEPING AREAS ,TAMPER SWITCH AND FLOW SWITCH ALL WORK TO BE DONE ACCORDING TO APPROVED DRAWINGS,2016 NFPA-72 AND PER 2017 N.E.C CODE
- PermitAlterations
Permit PP-2020-009097 · Completed
For minor construction work at the subject property in accordance with all applicable provisions of the Philadelphia Code, all references codes and standards, and the attached EZ Standard, where included. Deviation from this standard shall result in permit revocation. A separate permit from the Philadelphia Department of Streets is required for any sidewalk and street closures. All means of pedestrian protection required at the site in accordance with the Philadelphia Building Code Chapter 33 shall be in place prior to start of work.
- PermitAlterations
Permit PP-2020-008150 · Completed
For minor construction work at the subject property in accordance with all applicable provisions of the Philadelphia Code, all references codes and standards, and the attached EZ Standard, where included. Deviation from this standard shall result in permit revocation. A separate permit from the Philadelphia Department of Streets is required for any sidewalk and street closures. All means of pedestrian protection required at the site in accordance with the Philadelphia Building Code Chapter 33 shall be in place prior to start of work.
- PermitNew Construction
Permit FP-2020-001391 · Completed
INSTALLATION OF AN AUTOMATIC FIRE SUPPRESSION SYSTEM IN ACCORDANCE WITH NFPA 13R THROUGHOUT THREE STORY BUILDING TO INCLUDE BACKFLOW PREVENTION ASSEMBLY AND 2-INCH FIRE SERVICE LINE AS PER APPROVED PLANS.
- PermitAddition and/or Alteration
Permit CP-2020-001965 · Completed
ERECTION OF 3RD FLOOR ADDITION ON THE TOP OF AN EXISTING TWO STORY STRUTURE. LEVEL III ALTERATION TO THE EXISTING BUILDING (WITH NEW ADDITION) AS PER APPROVED PLAN
- PermitNew construction, addition, GFA change
Permit ZP-2020-001599 · Completed
FOR THE ERECTION OF AN ADDITION ON AN EXISTING STRUCTURE. SIZE AND LOCATION AS PER APPROVED PLANS.
- InvestigationL&I investigation
Case 724390 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationEXTERIOR STRUCT ROOF DRAINAGE
Case 724390 · Violation 211990501 · Code PM15-304.7 · COMPLIED
Resolution: COMPLIED - LICENSE/CERTIFICATE/REPORT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT STRUCTURE LICENSE
Case 724390 · Violation 211990502 · Code 9-3905 · COMPLIED
Resolution: COMPLIED - LICENSE/CERTIFICATE/REPORT OBTAINED 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 692095 · 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.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 724390 · 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.
- Recorded transfer$157K transfer
2020
- ViolationONE AND TWO FAMILY (R3)
Case 692095 · Violation 5084796 · Code 9-3902 (1) · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXTERIOR AREA SANITATION
Case 692095 · Violation 5084798 · Code PM15-302.1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT STRUCTURE AND LAND
Case 692095 · Violation 5084797 · Code PM15-301 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXTERIOR AREA WEEDS
Case 692095 · Violation 5084799 · Code PM15-302.4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXTERIOR STRUCT ROOF DRAINAGE
Case 692095 · Violation 5084800 · Code PM15-304.7 · 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 692095 · 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.
- PermitPlumbing
Permit 830155 · COMPLETED
REPLACE BATHROOM WASTE LINE & REPLACE TUB, TOILET, VANITY THE INSTALLATION WILL COMPLY WITH THE PHILADELPHIA PLUMBING CODE 2004
- PermitElectrical
Permit 774400 · COMPLETED
INSTALL 30- CIRCUIT PANEL, GROUNDING BRIDGE, GFI, AFCI BREAKERS, 20A RECEPTACLE, SMOKE/CARBON DETECTOR. REPLACE 14- SWITCHES, 29- RECEPTACLES, GF'S (4), 2- 3 WAY SWITCHES, 2- FIX, HOT WTER & RANGE CKTS, 6- ELECTR SMK DETEC.. PER 2008 NEC FOR A ONEFAMILY BLDG (PAID FOR BY PHDC)
- PermitAlteration
Permit 764047 · COMPLETED
INSTALL A RUBBER ROOF ON THE MAIN ROOF (SFD)
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 27, 2026, 7:16 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)