2026 assessment
$744K
OPA value, not a listing price
Multi-family report
4620 Sansom St
6 bd3 stories2,880 sqftRM1built 2016
Property at a glanceApartment building
Entity-held
ZIP 19139 area
Walnut Hill · Haddington
4600 block of Sansom 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 · 2018$525K 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$525K 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$545K 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$545K 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$545K 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$590K 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$590K 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$744K 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$744K 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$511K 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 · 2015-11-30Zoning/useThis 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 · 2016-02-25New 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 · 2016-02-25SuppressionThis 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 · 2016-02-29PlumbingThis 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 ↗
- License · 2022-08-25ER UC Flats 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 · 2022-05-25Fire 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 · 2023-10-27Sprinkler 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 · 2024-01-02Fire 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 · 2024-09-25Sprinkler 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 · 2025-01-16Fire 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 · 2025-11-04Sprinkler 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 · 2025-11-04Sprinkler 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 · 2026-01-12Fire 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) medianAssessmentPermitLicenseCertification
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 record13 events · exact dates, newest first
- CertificationFire Alarm Certification
- CertificationSprinkler Certification
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- CertificationSprinkler Certification
- LicenseER UC Flats LLC: Rental landlord or residential registration initially issued
- CertificationFire Alarm Certification
- PermitPlumbing
- PermitNew construction
- PermitSuppression
- PermitZoning/use
Flags: material assessment exemption; legal basis and term unverified · active rental license. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$3,470/year estimated property tax
2026 taxable assessment $247,900 × 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 $510,900. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 6010326102026 OPA taxes $247,900 of $743,700 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.”
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.
$247,900 taxable basis
Difference to verify+$6,940/year
$743,700 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: ($743,700 assessed − $495,800 exempt) × 1.3998% ≈ $3,470/year
Full-assessment scenario: $743,700 × 1.3998% ≈ $10,410/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
6
Stories
3
Interior
2,880 sqft
livable area
Lot
1,552 sqft
Central air
Yes
Exterior condition
Above average
city code 3
Above averageBelow average
Interior condition
Above average
city code 3
Above averageBelow average
Quality grade
B
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
Er Uc Flats LLC · corporate / LLC owner
• Owns 14 properties across Philadelphia under this name, assessed at $7.3M combined
• Tax bills mail to 550 Grand St Ground Flr, Brooklyn NY, 11211 — outside Philadelphia
• Holds an active rental license for this address
Block context
4600 block of Sansom St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 4620 Sansom St · 4618 Sansom 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.
ER UC Flats LLCActive
Rental · Initial issue date Aug 25, 2022 · Filed expiration Aug 24, 2026
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 13 dated rows
- CertificationFire Alarm Certification
Certification BC-2026-008620 · Certified
Expires 2027-01-12
- CertificationSprinkler Certification
Certification BC-2025-032510 · Certified
Expires 2026-11-04
- CertificationSprinkler Certification
Certification BC-2025-032509 · Certified
Expires 2026-11-04
- CertificationFire Alarm Certification
Certification BC-2025-002783 · Certified
Expires 2026-01-16
- CertificationSprinkler Certification
Certification BC-2024-029381 · Certified
Expires 2025-09-25
- CertificationFire Alarm Certification
Certification BC-2024-006336 · Certified
Expires 2025-01-02
- CertificationSprinkler Certification
Certification BC-2024-004104 · Certified
Expires 2024-10-27
- License issue eventER UC Flats LLC: Rental landlord or residential registration initially issued
License 904249 · Active
License event. Registration does not prove present operation or storefront occupancy.
- CertificationFire Alarm Certification
Certification BC-2023-002643 · Certified
Expires 2023-05-25
- PermitPlumbing
Permit 672930 · COMPLETED
NEW LATERAL,CURB TRPAAP,NEW 1" COPPER DOMESTIC WATER MAIN TO HOUSE NEW 2" POLY (MULTI FAMILY)PA20160571075 SELF CERTIFICATION'S ARE NO LONGER PERMITTED","ALL EXCAVATIONS AND PLUMBING TRENCHES IN EXCESS OF 5 FT IN DEPTH MUST HAVE APPROVED SHORING IN PLACE AT THE TIME OF INSPECTION"
- PermitNew construction
Permit 669863 · COMPLETED
NEW CONSTRUCTION OF A MODULAR, THREE STORY, THREE FAMILY DWELLING TO BE INSTALLED ON EXISTING FOUNDATION (SEE PERMIT #658807 FOR APPROVAL OF FOUNDATIONS ONLY). MODULAR STRUCTURE TO BE IN CONSTRUCTED AND INSPECTED IN ACCORDANCE WITH THE PA INDUSTRIALIZED HOUSING ACT. THE 3RD PARTY APPROVAL TO BE LOCATED IN THE KITCHEN SINK CABINET. ALL SITE CONSTRUCTION, INCLUDING PLACEMENT OF THE STRUCTURE ON THE FOUNDATION,AND CONSTRUCTION OR RE3AR DECKS,TO BE INSPECTED BY THE DEPARTMENT FOR CONFORMANCE WITH THE PA UCC. PLANS FOR MODULAR STRUCTURE FILED UNDER AP #668309.
- PermitSuppression
Permit 669867 · COMPLETED
INSTALL A 2" UNDERGROUND SERVICE, SYSSTEM RISER, AND CONNECTION TO A FACTORY INSTALLED, PRE-PIPED, SPRINKLER SYSTEM DESIGNED PER NFPA 13R FOR A NEW MODULAR 3-FAMILY DWELLING CONSTRUCTED AND INSPECTED IN ACCORDANCE WITH THE PA INDUSTRIALIZED HOUSING ACT. COMPONENTS INSTALLED ON SITE TO BE INSPECTED AND APPROVED BY THE DEPARTMENT (INCLUDING FDC, BACKFLOW, WATER FLOW ALARM, ETC) SEE AP #669863 FOR NEW CONSTRUCTION PERMIT. SPRINKLER PLANS FILED UNDER AP #668759.
- PermitZoning/use
Permit 654629 · COMPLETED
FOR THE ERECTION OF AN ATTACHED STRUCTURE WITH DECKS AT THE REAR OF THE 2ND AND 3RD FLOORS, SIZE AND LOCATION AS SHOWN ON PLANS/APPLICATION. FOR USE AS MULTI-FAMILY HOUSEHOLD LIVING (3 UNITS). SEE AP#648699 FOR PLANS.
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 29, 2026, 6:48 AM 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)