2026 assessment
$550K
OPA value, not a listing price
Multi-family report
4535 N 20th St
4 bd3 stories2,736 sqftRM1built 2023
Property at a glanceMulti-family
Entity-held
ZIP 19140 area
Hunting Park · Nicetown–Tioga
4500 block of N 20th 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$6K 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$5K 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$5K 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$5K 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$5K 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$5K 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$5K 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$16K 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$16K 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$18K 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$550K 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$373K 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 ↗
- Land buy · 2022Land record $35KA land-record event associated with this parcel. Review the recorded instrument to determine whether it reflects a conveyance, parcel change, or another filing.How to read the recorded document ↗
- Permit · 2022-04-26New 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 · 2023-02-22New 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 · 2023-04-13New 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 · 2023-04-17New 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 · 2023-07-11New 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 · 2023-07-24New 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 · 2023-07-24New 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 · 2023-07-24New 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 ↗
- L&I violation · 2013-09-12EXT 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 · 2013-09-12CLIP 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 · 2017-07-21EXT 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 · 2017-07-21CLIP 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 ↗
- Inspection · 2003-09-23L_INITIALA 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 · 2024-04-12GS ONE 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 19140 (Hunting Park · Nicetown–Tioga) medianAssessmentLand buyL&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 record15 events · exact dates, newest first
- LicenseGS ONE LLC: Rental landlord or residential registration initially issued
- PermitNew Construction or Additions
- PermitNew Construction or Additions
- PermitNew Construction or Additions
- PermitNew Construction
- PermitNew Construction
- PermitNew Construction
- PermitNew Construction
- PermitNew construction, addition, GFA change
- Land buyLand record $35K
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- InspectionL_INITIAL
Flags: material assessment exemption; legal basis and term unverified · active rental license · historical tax ledger through 2016 recorded $16K with a lien entry. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$2,566/year estimated property tax
2026 taxable assessment $183,300 × 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 $372,500. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 1322301002026 OPA taxes $183,300 of $549,900 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 $16,432.74 and a lien entry. It is shown as historical context only.
1997$2,275.77 total · $623.44 principal · $1,075.44 interest · $43.64 penalty1998$1,808.79 total · $623.44 principal · $1,019.33 interest · $43.64 penalty1999$1,749.32 total · $623.44 principal · $963.22 interest · $43.64 penalty2000$1,689.84 total · $623.44 principal · $907.11 interest · $43.64 penalty2001$1,630.36 total · $623.44 principal · $851.00 interest · $43.64 penalty2002$1,570.89 total · $623.44 principal · $794.89 interest · $43.64 penalty2003$1,511.41 total · $623.44 principal · $738.78 interest · $43.64 penalty2004$1,451.94 total · $623.44 principal · $682.67 interest · $43.64 penalty2005$1,446.46 total · $623.44 principal · $626.56 interest · $43.64 penalty2006$117.18 total · $45.62 principal · $41.74 interest · $3.19 penalty2007$112.83 total · $45.62 principal · $37.63 interest · $3.19 penalty2008$108.48 total · $45.62 principal · $33.53 interest · $3.19 penalty2009$104.12 total · $45.62 principal · $29.42 interest · $3.19 penalty2010$99.78 total · $45.62 principal · $25.32 interest · $3.19 penalty2011$102.77 total · $50.13 principal · $23.31 interest · $3.51 penalty2012$100.93 total · $52.06 principal · $19.52 interest · $3.64 penalty2013$98.68 total · $53.94 principal · $15.37 interest · $3.78 penalty2014$130.18 total · $97.08 principal · $18.93 interest · $6.80 penalty2015$120.92 total · $97.08 principal · $10.20 interest · $6.80 penalty2016$202.09 total · $101.42 principal · $1.52 interest · $1.01 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.
$183,300 taxable basis
Difference to verify+$5,132/year
$549,900 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: ($549,900 assessed − $366,600 exempt) × 1.3998% ≈ $2,566/year
Full-assessment scenario: $549,900 × 1.3998% ≈ $7,698/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
4
Stories
3
Interior
2,736 sqft
livable area
Lot
1,241 sqft
Basement
Full, finished
city code A
Central air
Yes
Exterior condition
Newer construction
city code 1
Newer construction
Interior condition
Newer construction
city code 1
Newer construction
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
Gs One LLC · corporate / LLC owner
• Owns 3 properties across Philadelphia under this name, assessed at $413K combined
• Tax bills mail to 5015 Knox St, Philadelphia PA, 19144
• Holds an active rental license for this address
Block context
4500 block of N 20th St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 4533 N 20th St · 4537 N 20th St
L&I license dates · data through Jul 28, 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 28, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
GS ONE LLCActive
Rental · Initial issue date Apr 12, 2024 · Filed expiration Apr 11, 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 15 dated rows
- License issue eventGS ONE LLC: Rental landlord or residential registration initially issued
License 948952 · Active
License event. Registration does not prove present operation or storefront occupancy.
- PermitNew Construction or Additions
Permit PP-2022-017837 · Completed
Plumbing Permit (Exterior Building Drainage) for combo RP-2022-012942
- PermitNew Construction or Additions
Permit PP-2022-017836 · Completed
Plumbing Permit (Water Distribution) for combo RP-2022-012942
- PermitNew Construction or Additions
Permit PP-2022-017838 · Completed
Plumbing Permit (Interior) for combo RP-2022-012942
- PermitNew Construction
Permit EP-2022-012496 · Completed
Electrical Permit for combo RP-2022-012942
- PermitNew Construction
Permit FP-2023-000779 · Completed
INSTALL NEW FIRE SUPPRESSION SYSTEM AND 1” COMBINED SERVICE IN ACCORDANCE WITH NFPA 13D THROUGHOUT THE ENTIRE BUILDING. ALL WORK SHALL COMPLY WITH THE APPROVED PLANS. ALL WORK SHALL BE PERFORMED BY A FIRE SUPPRESSION CONTRACTOR LICENSED BY THE CITY OF PHILADELPHIA.
- PermitNew Construction
Permit MP-2022-006337 · Completed
Mechanical / Fuel Gas Permit for combo RP-2022-012942
- PermitNew Construction
Permit RP-2022-012942 · Completed
FOR UNDERPINNING AND FOR THE CONSTRUCTION OF AN ATTACHED BUILDING WITH CELLAR AND 2ND FLOOR REAR ROOF DECK ACCESSED FROM REAR OF 3RD FLOOR. FOR USE AS A TWO-FAMILY HOUSEHOLD LIVING. BUILDING TO BE FULLY SPRINKLERED AS PER NFPA 13D THROUGHOUT. AS PER PLANS. *****************SEPARATE PERMITS ARE REQUIRED FOR PLUMBING, MECH., OR ELECTRICAL WORK. ************** AMENDMENT: FOR THE INCREASE IN BUILDING HEIGHT AND TO REMOVE THE ROOF DECK FROM THE PREVIOUSLY APPROVED PERMIT AND TO INCLUDE REAR DECKS.
- PermitNew construction, addition, GFA change
Permit ZP-2022-004115 · Completed
AMENDMENT APPROVED AS OF 09/11/2023: FOR THE INCREASE IN BUILDING HEIGHT AND TO REMOVE THE ROOF DECK FROM THE PREVIOUSLY APPROVED PERMIT AND TO INCLUDE REAR DECKS TO THE PREVIOUSLY APPROVED ATTACHED BUILDING. FOR THE ERECTION OF AN ATTACHED BUILDING WITH A ROOF DECK AT REAR THIRD FLOOR (SIZE AND LOCATION AS SHOWN ON PLANS).
- Land recordLand record
2022
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 595283 · Violation 4393562 · 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 595283 · Violation 4393561 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 401947 · Violation 2932410 · 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 401947 · Violation 2932409 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationL_INITIAL
Case 16378 · CLOSED
City marked the record closed; open the case for the closing reason.
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 28, 2026, 10:52 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)