2026 assessment
$347K
OPA value, not a listing price
Multi-family report
20 N 51st St
3 stories1,988 sqftRM1built 1925
Property at a glanceMulti-family
Entity-held
ZIP 19139 area
Walnut Hill · Haddington
0 block of N 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$82K 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$82K 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$82K 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$65K 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$68K 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$68K 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$68K 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$337K 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$337K 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$347K 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$347K 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$355K 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 · 2017Deed / sale $56KA 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 · 2018Deed / sale $83KA 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 · 2018-12-19UseThis 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 · 2019-02-28PlumbingThis 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 · 2019-03-07MechanicalThis 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 · 2019-03-07Major 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 · 2019-04-25ElectricalThis 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 · 2019-05-29SuppressionThis 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 · 2019-06-11PlumbingThis 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 ↗
- L&I violation · 2025-12-23SUPPRESSION SYSTEM 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 ↗
- L&I violation · 2025-12-23FDC CLEAR SPACEA 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 · 2025-12-23L&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 · 2026-02-02L&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 · 2019-07-16NOAM INVESTMENTS 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 ↗
- Certification · 2021-07-02Fire 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 · 2022-07-19Fire 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 · 2023-07-24Fire 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 · 2023-11-08Sprinkler 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 · 2024-07-18Fire 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 · 2024-10-30Sprinkler 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 · 2025-07-16Fire 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 · 2025-10-24Sprinkler 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 · 2025-10-24Sprinkler 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 · 2026-07-08Fire 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 19139 (Walnut Hill · Haddington) 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 record24 events · exact dates, newest first
- CertificationFire Alarm Certification
- InspectionL&I investigation
- L&I violationSUPPRESSION SYSTEM TESTING & MAINTENANCE
- L&I violationFDC CLEAR SPACE
- InspectionL&I investigation
- CertificationSprinkler Certification
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- CertificationFire Alarm Certification
- CertificationFire Alarm Certification
- LicenseNOAM INVESTMENTS LLC: Rental landlord or residential registration initially issued
- PermitPlumbing
- PermitSuppression
- PermitElectrical
- PermitMechanical
- PermitMajor alteration
- PermitPlumbing
- PermitUse
- Deed / saleDeed / sale $83K
- Deed / saleDeed / sale $56K
Flags: material assessment exemption; legal basis and term unverified · active rental license · historical tax ledger through 2016 with a lien entry. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$985/year estimated property tax
2026 taxable assessment $70,389 × 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 $354,700. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 4410976002026 OPA taxes $70,389 of $346,800 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 a balance and a lien entry. It is shown as historical context only.
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.
$70,389 taxable basis
Difference to verify+$3,870/year
$346,800 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: ($346,800 assessed − $276,411 exempt) × 1.3998% ≈ $985/year
Full-assessment scenario: $346,800 × 1.3998% ≈ $4,855/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.
Stories
3
Interior
1,988 sqft
livable area
Lot
1,792 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
Noam Investments LLC · corporate / LLC owner
• Owns 4 properties across Philadelphia under this name, assessed at $1.1M combined
• Tax bills mail to Po Box 30598, Philadelphia PA, 19103
• Holds an active rental license for this address
Block context
0 block of N 51st St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 18 N 51st St · 22 N 51st 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.
NOAM INVESTMENTS LLCActive
Rental · Initial issue date Jul 16, 2019 · Filed expiration Jul 15, 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
- CertificationFire Alarm Certification
Certification BC-2026-019943 · Certified
Expires 2027-07-08
- InvestigationL&I investigation
Case CF-2025-136474 · PASSED
The cited inspection visit was marked passed.
- ViolationSUPPRESSION SYSTEM TESTING & MAINTENANCE
Case CF-2025-136474 · Violation VI-2025-099377 · Code F-903.5 · COMPLIED
Resolution: COMPLIED - LICENSE/CERTIFICATE/REPORT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationFDC CLEAR SPACE
Case CF-2025-136474 · Violation VI-2025-099378 · Code F-912.4.2 · 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-2025-136474 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- CertificationSprinkler Certification
Certification BC-2025-033007 · Deficient
- CertificationSprinkler Certification
Certification BC-2025-033691 · Certified
Expires 2026-10-24
- CertificationFire Alarm Certification
Certification BC-2025-019772 · Certified
Expires 2026-07-16
- CertificationSprinkler Certification
Certification BC-2024-033826 · Certified
Expires 2025-10-30
- CertificationFire Alarm Certification
Certification BC-2024-021733 · Certified
Expires 2025-07-18
- CertificationSprinkler Certification
Certification BC-2023-025329 · Certified
Expires 2024-11-08
- CertificationFire Alarm Certification
Certification BC-2023-015915 · Certified
Expires 2024-07-24
- CertificationFire Alarm Certification
Certification BC-2022-009894 · Certified
Expires 2023-07-19
- CertificationFire Alarm Certification
Certification BC-2021-002760 · Certified
Expires 2022-07-02
- License issue eventNOAM INVESTMENTS LLC: Rental landlord or residential registration initially issued
License 818218 · Active
License event. Registration does not prove present operation or storefront occupancy.
- PermitPlumbing
Permit 984400 · COMPLETED
REPLACE 1" WATER SERVICE FROM CURB TO WATER METER AS PER 2004 PPC
- PermitSuppression
Permit 968503 · COMPLETED
FOR THE INSTALLATION OF A NEW FIRE SUPPRESSION SYSTEM COMPLYING WITH NFPA 13 THROUGHOUT THE BUILDING TO INCLUDE 2" MAIN FIRE SERVICE LINE AND 1 1/2" WILKINS 350XL BACKFLOW PREVENTION ASSEMBLY AS PER APPROVED PLANS. ALL WORK SHALL BE PERFORMED BY A FIRE SUPPRESSION CONTRACTOR LICENSED BY THE CITY OF PHILADELPHIA.
- PermitElectrical
Permit 960093 · COMPLETED
INSTALL RECEPTACLES, LIGHT FIXTURES, SWITCHES, 100AMP NEW SERVICE. 4 PANELS, REWIRING AS PER PLANS, INSTALL FIRE ALARM SYSTEMAS PER 2008 NEC AND NFPA 72. (WEST DIST)
- PermitMechanical
Permit 953462 · COMPLETED
EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES-INSTALL ONE 90000BTU 90% HEATING UNIT WITH 2TON A/C CONDENSING UNIT FOR THE FIRST FLOOR ALL DUCT WORK AND CONNECTING COMPONENTS CONTAINED WITHIN SPACE CONDITIONING, ONE 90000BTU 90% HEATING UNIT WITH 2TON A/C CONDENSING UNIT FOR 2ND FLOOR ALL DUCT WORK AND CONNECTING COMPONENTS CONTAINED WITHIN SPACE CONDITIONING, AND ONE SPLIT UNIT 50000BTU FOR THE THIRD FLOOR ALL CONNECTIN CONPONENTS CONTAINED IN SPACE CONDITIONING. FOR THE INSTALLATION IF NEW DUCTWORK, REGISTERS/GRILLES/DIFFUSERS, AND WARM-AIR APPLIANCES AS PER ATTACHED STANDARDS. DEVIATIONS FROM THESE STANDARDS REQUIRE SUBMISSION OF CONSTRUCTION AND SITE PLANS.
- PermitMajor alteration
Permit 945566 · COMPLETED
FOR INTERIOR ALTERATIONS TO CREATE NEW HOUSEHOLD LIVING UNITS TO INCLUDE NEW RATED SHAFT ENCLOSURE ASSEMBLIES AND TENANT SEPARATION WALLS (PER UL U301), NEW RATED FLOOR-CEILING ASSEMBLY (PER UL L512), AND WALL/FLOOR/CEILING FINISHING. (IEBC 2009, CHANGE IN OCCUPANCY CLASSIFICATION, HIGHER HAZARD) **SEPARATE PERMITS TO BE REQUIRED FOR MECHANICAL, PLUMBING, ELECTRICAL, AND FIRE SUPPRESSION SYSTEM INSTALLATIONS.**
- PermitPlumbing
Permit 953419 · COMPLETED
3-TUBS, 3-TOILETS, 3-VANITIES, 3-KITCHEN SINKS, 3-LAUNDRY, INSTALLATION WILL COMPLY WITH THE PHILADELPHIA PLUMBING CODE 2004
- PermitUse
Permit 936319 · COMPLETED
THREE FAMILY DWELLING
- Recorded transfer$83K transfer
2018
- Recorded transfer$56K transfer
2017
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 23, 2026, 4:10 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)