2026 assessment
$434K
OPA value, not a listing price
Mixed-use property report
406 S 20th St
3 stories1,360 sqftCMX1built 1900
Property at a glanceApartment building
Silverstone LLC
2027 published assessment
$415K
Future roll, not the current tax bill
Location
400 block of S 20th St
ZIP 19146
Neighborhood area
Graduate Hospital · Point Breeze
Approximate · based on ZIP 19146
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 $414,800. It is not yet the billed-year tax basis.
- OPA assessment · 2016$360K 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$360K 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$441K 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$454K 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$459K 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$459K 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$459K 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$579K 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$579K 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$434K 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$434K 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$415K 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 · 2012Deed / sale $379KA 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 · 2011-06-01UseThis 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 · 2011-09-22PlumbingThis 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 · 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 · 2019-03-01Major 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 · 2019-03-08ElectricalThis 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 · 2019-04-01AlterationsThis 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 · 2019-05-07PlumbingThis 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 ↗
- L&I violation · 2013-04-10PERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)Building permit required for interior alteration or repairHow L&I violations and orders work ↗
- Inspection · 2013-04-10BP_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 ↗
- L&I violation · 2014-02-25VIOL C&I MESSAGEA 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 · 2014-02-25DRAINAGE-DOWNSPOUT REPR/REPLCA 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 · 2014-02-25CI INSPA 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 ↗
- L&I violation · 2019-01-09STOP WORK ORDERA 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 · 2019-01-09PERMB- INSTALL INT PARTITIONSA 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 · 2019-01-09PERMB- INSTALL DUCTWORKA 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 · 2019-01-09PERME- INST/REPL/REPAIR WIRE (Electrical permit required for wiring installation, replacement, or repair)Electrical permit required for wiring installation, replacement, or repairHow L&I violations and orders work ↗
- L&I violation · 2019-01-09PERMP- ALTER/REPAIR/REPL PLUMBA 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 · 2019-01-09BP_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 · 2006-09-22BC INSP (likely: building-code inspection)Legacy inspection shorthand; confirm the inspection type and scope in the City case file.What Philadelphia inspections check ↗
- Inspection · 2013-04-24BP_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 · 2013-04-25BP_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 ↗
- Inspection · 2014-04-01CI INSPA 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 · 2019-02-15BP_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 · 2019-04-17BP_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 · 2013-04-29SILVERSTONE 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 ↗
- License · 2001-04-08BERK PERCY & PHILIP: 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 · 2011-11-07BERK PERCY & PHILIP: 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 ↗
Property assessmentAssessmentDeed / 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 record28 events · exact dates, newest first
- PermitPlumbing
- InspectionBP_BLDG
- PermitAlterations
- PermitElectrical
- PermitMajor alteration
- InspectionBP_BLDG
- L&I violationSTOP WORK ORDER
- L&I violationPERMB- INSTALL INT PARTITIONS
- L&I violationPERMB- INSTALL DUCTWORK
- L&I violationPERME- INST/REPL/REPAIR WIRE (Electrical permit required for wiring installation, replacement, or repair)
- L&I violationPERMP- ALTER/REPAIR/REPL PLUMB
- InspectionBP_BLDG
- PermitUse
- InspectionCI INSP
- L&I violationVIOL C&I MESSAGE
- L&I violationDRAINAGE-DOWNSPOUT REPR/REPLC
- InspectionCI INSP
- LicenseSILVERSTONE LLC: Rental landlord or residential registration initially issued
- InspectionBP_BLDG
- InspectionBP_BLDG
- L&I violationPERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)
- InspectionBP_BLDG
- Deed / saleDeed / sale $379K
- LicenseBERK PERCY & PHILIP: Rental landlord or residential registration marked inactive
- PermitPlumbing
- PermitUse
- InspectionBC INSP (likely: building-code inspection)
- LicenseBERK PERCY & PHILIP: Rental landlord or residential registration initially issued
Verify the public record
Property tax
$6,075/year estimated property tax
2026 taxable assessment $434,000 × 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 $414,800. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 8715006002026 taxable assessment equals the full assessed value.
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.”
Where the record looks off
Conflicts in City paperwork. Flags on the data, not the property.
"Built 1900" is usually a placeholder
Philadelphia records use 1900 as a stand-in when the real construction year was never documented. Treat the age as unknown, not as 120+ years.
Property report
Mixed-use property
Apartment building, recorded in the City's mixed-use category. The public record and owner trail follow.
What it is
Apartment building
Str/Off+Apt 3 Sty Masonry
Owner
Silverstone LLC
$ / sq ft
$305
assessed value ÷ interior sqft
Licensed units
2
active rental license
Interior area
1,360 sqft
Lot size
630 sqft
Stories
3
Built
1900
Zoning
CMX1
Recorded owner
Who's behind it
Silverstone LLC · corporate / LLC owner
• Tax bills mail to 120 Magnolia Dr, Chester Springs PA, 19425 — outside Philadelphia
• Holds an active rental license for this address
Block context
400 block of S 20th St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 404 S 20th St · 408 S 20th St
L&I license dates · data through Jul 24, 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 24, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
SILVERSTONE LLCActive
Rental · Initial issue date Apr 29, 2013 · Filed expiration Feb 28, 2027
BERK PERCY & PHILIPInactive
Rental · Initial issue date Apr 8, 2001 · Terminal license date Nov 7, 2011
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 28 dated rows
- PermitPlumbing
Permit 958092 · COMPLETED
ALTERATIONS TO THE FIRST FLOOR TO CREATE A HAIR SALON-THE INSTALLATION WILL COMPLY WITH THE PHILADEPHIA PLUBMING CODE 2004 1 WC 1 LAV 1 KITCHEN SINK 2 WASH SINKS.
- InvestigationBP_BLDG
Case 669854 · PASSED
The cited inspection visit was marked passed.
- PermitAlterations
Permit 962590 · Expired
Fixtrue replacement for 2nd floor apartment. 1 toilet, 1 sink and one kitchen sink only per 2004 Philadelphia Plumbing Code.
- PermitElectrical
Permit 955696 · COMPLETED
INSTALL TRACK LIGHTS IN EXISTING WIRING EXIT SIGNS AND LIGHT DIMMER SWITCHES, PER 2008 NEC
- PermitMajor alteration
Permit 944929 · COMPLETED
FOR LEVEL 2 ALTERATIONS TO THE FIRST FLOOR TO CREATE A HAIR SALON AS PER PLANS. SEPARATE PERMITS REQUIRED FOR ALL MECHANICAL, ELECTRICAL AND PLUMBING WORK.
- InvestigationBP_BLDG
Case 669854 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationSTOP WORK ORDER
Case 669854 · Violation 4953605 · Code A-504.1/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationPERMB- INSTALL INT PARTITIONS
Case 669854 · Violation 4953601 · Code A-301.1/34 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationPERMB- INSTALL DUCTWORK
Case 669854 · Violation 4953602 · Code A-301.1/43 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationPERME- INST/REPL/REPAIR WIRE (Electrical permit required for wiring installation, replacement, or repair)
Case 669854 · Violation 4953603 · Code A-301.1/51 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationPERMP- ALTER/REPAIR/REPL PLUMB
Case 669854 · Violation 4953604 · Code A-301.1/55 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 669854 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitUse
Permit 936072 · COMPLETED
FOR A PERSONAL SERVICE AT FIRST FLOOR ( NTE 2,000 GFA) IN THE SAME BUILDING WITH ALL OTHER USESW AS PREVIOUSLY APPROVED. NO SIGN ON THIS APPLICATION.
- InvestigationCI INSP
Case 420023 · PASSED
The cited inspection visit was marked passed.
- ViolationVIOL C&I MESSAGE
Case 420023 · Violation 3094636 · Code A-000.0/10 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationDRAINAGE-DOWNSPOUT REPR/REPLC
Case 420023 · Violation 3094637 · Code PM-302.4/7 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationCI INSP
Case 420023 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- License issue eventSILVERSTONE LLC: Rental landlord or residential registration initially issued
License 591789 · Active
License event. Registration does not prove present operation or storefront occupancy.
- InvestigationBP_BLDG
Case 375556 · PASSED
The cited inspection visit was marked passed.
- InvestigationBP_BLDG
Case 375556 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationPERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)
Case 375556 · Violation 2772937 · Code A-301.1/4 · ERROR
- InvestigationBP_BLDG
Case 375556 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- Recorded transfer$379K transfer
2012
- License terminal eventBERK PERCY & PHILIP: Rental landlord or residential registration marked inactive
License 246576 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- PermitPlumbing
Permit 364644 · COMPLETED
CURB TRAP INTO HOUSE
- PermitUse
Permit 344173 · COMPLETED
FOR RETAIL SALE OF FINE ARTS IN THE FIRST FLOOR AND ABOVE TWO FAMILY DWELLING PREVIOUSLY APPROVED IN THE SAME EXISTING STRUCTURE. NO CHANGE IN AREA OR HEIGHT. NO SIGN ON THIS PERMIT
- InvestigationBC INSP (likely: building-code inspection)
Case 80928 · PASSED
Legacy inspection shorthand; confirm the inspection type and scope in the City case file. The cited inspection visit was marked passed.
- License issue eventBERK PERCY & PHILIP: Rental landlord or residential registration initially issued
License 246576 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
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
- Imagery: Street photo © Google · Aerial © Esri, Maxar
Methodology & freshness
This report was assembled Jul 24, 2026, 9:08 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)