2026 assessment
$200K
OPA value, not a listing price
House report
3929 Mount Vernon St
3 bd1 ba2 stories1,144 sqftRSA5built 1930
Property at a glanceHouse
Entity-held
ZIP 19104 area
University City · West Powelton
3900 block of Mount Vernon St
Assessment and City record timeline
Published City assessments for this house 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$121K 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$121K 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$121K 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$138K 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$143K 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$143K 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$143K 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$162K 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$162K 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$200K 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$200K 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$270K 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 · 2018Deed / sale $3KA 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 · 2020Deed / sale $60KA 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 · 2020-01-22Interior Non-Load-Bearing Wall Demo.This 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 · 2020-03-06AlterationsThis 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 · 2020-06-11New 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 · 2021-04-06Addition 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 · 2021-04-22Addition 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 · 2021-04-26Addition 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 ↗
- Permit · 2021-05-05AlterationsThis 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 · 2021-04-12NEW PLUMBINGA 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 · 2021-04-12NEW ELECTRICAL WIRINGA 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 · 2021-04-12L&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 · 2021-05-28L&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 · 2022-06-093929 MT VERNON 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 19104 (University City · West Powelton) 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 record14 events · exact dates, newest first
- License3929 MT VERNON LLC: Rental landlord or residential registration initially issued
- InspectionL&I investigation
- PermitAlterations
- PermitAddition and/or Alterations
- PermitAddition and/or Alteration
- L&I violationNEW PLUMBING
- L&I violationNEW ELECTRICAL WIRING
- InspectionL&I investigation
- PermitAddition and/or Alteration
- PermitNew Construction
- PermitAlterations
- PermitInterior Non-Load-Bearing Wall Demo.
- Deed / saleDeed / sale $60K
- Deed / saleDeed / sale $3K
Flags: active rental license · historical tax ledger through 2016 recorded $2K with a lien entry. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$2,795/year estimated property tax
2026 taxable assessment $199,700 × 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 $270,300. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 2422136002026 taxable assessment equals the full assessed value.
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 $1,969.25 and a lien entry. It is shown as historical context only.
2014$527.75 total · $180.67 principal · $144.80 interest · $83.34 penalty2016$1,441.50 total · $1,242.15 principal · $18.64 interest · $12.42 penalty
For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”
The property, on paper
OPA physical field record.
Bedrooms
3
Bathrooms
1
Stories
2
Interior
1,144 sqft
livable area
Lot
1,140 sqft
Basement
Full
city code D
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
New / rehabbed
city code 2
New / rehabbed
Quality grade
C-
assessor's grade
ABCDE
Zoning
RSA5
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Recorded owner
Who's behind it
3929 Mt Vernon LLC · corporate / LLC owner
• Tax bills mail to 112 Springmont Cir, Bryn Mawr PA, 19010 — outside Philadelphia
• Holds an active rental license for this address
Block context
3900 block of Mount Vernon St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 3927 Mount Vernon St · 3931 Mount Vernon 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.
3929 MT VERNON LLCActive
Rental · Initial issue date Jun 9, 2022 · Filed expiration Sep 1, 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 14 dated rows
- License issue event3929 MT VERNON LLC: Rental landlord or residential registration initially issued
License 0987782 · Active
License event. Registration does not prove present operation or storefront occupancy.
- InvestigationL&I investigation
Case CF-2021-026670 · PASSED
The cited inspection visit was marked passed.
- PermitAlterations
Permit PP-2021-007212 · Completed
Installing 5 Fixtures
- PermitAddition and/or Alterations
Permit MP-2021-002736 · Completed
Installation of a 70,000 BTU, 3 ton, 1,200 CFM system with duct work with a Total of (11)Diffusers/Registers, condenser will be placed in the backyard
- PermitAddition and/or Alteration
Permit EP-2021-003951 · Completed
Wire throughout building for G.F.C.I outlets smoke detectors switches lighting and fixtures per N.E.C code 2014
- ViolationNEW PLUMBING
Case CF-2021-026670 · Violation VI-2021-020107 · Code A-301.1/54 · CLOSED
Resolution: CLOSED - WRITTEN IN ERROR City marked the record closed; open the case for the closing reason.
- ViolationNEW ELECTRICAL WIRING
Case CF-2021-026670 · Violation VI-2021-020106 · Code A-301.1/50 · COMPLIED
Resolution: COMPLIED - PERMIT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationL&I investigation
Case CF-2021-026670 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitAddition and/or Alteration
Permit RP-2020-013825 · Completed
EZ PERMIT STANDARDS ALTERATIONS - For alterations to an Existing One Family Dwelling as per attached standard. Deviations from this standard will result in permit revocation and require submission of construction plans. Structural alteration or repair is expressly prohibited under this permit. Prohibited structural work any modifications to exterior walls, party walls, floor/roof framing or foundations; including underpinning, excavation, and removal of foundation slab. NO WORK MAY BE PERFORMED IN THE BASEMENT OR CELLAR. Separate permits required for Mechanical, Electric and Plumbing. INTERIOR ALTERATIONS AS PER EZ STANDARD. NO STRUCTURAL WORK. NO BASEMENT WORK. KEY PLAN ATTACHED. *CONTRACTOR HAS NO EMPLOYEES PER NOTARIZED LETTER*
- PermitNew Construction
Permit MP-2020-000668 · Expired
For Mechanical work to include installation of - 13 Seer 2 ton Condenser - 95% AFUE,/, Gas Furnace, 2.5 Ton, with 2.5 ton coil - metal and insulated flex duct - all metal supply and trunk lines - insulated flex branch lines - all required registers
- PermitAlterations
Permit 1055824 · Expired
ROUGH IN WASTE AND WATER LINES TO 1 1/2 BATHROOMS WITH 2-WATER CLOSETS,2-VANITIES,1-TUB/SHOWER,1-KITCHEN SINK AND 1-LAUNDRY SINK.THE INSTALLATION WILL COMPLY WITH THE PHILADELPHIA PLUMBING CODE 2018 - THE INSTALLATION DOES NOT INCLUDE GARBAGE DISPOSAL OR DISHWASHER
- PermitInterior Non-Load-Bearing Wall Demo.
Permit 1043345 · Expired
INTERIOR DEMO-INTERIOR DEMO OF NON LOAD BEARING WALLS ONLY NO STRUCTUAL WORK ON THIS PERMIT***PROHIBITED STRUCTURAL WORK INCLUDES ANY MODIFICATION TO EXTERIOR WALLS, PARTY WALLS, FLOOR/ROOF, FRAMING OR FOUNDATIONS; UNDERPINNING AND EXCAVATIONS (I.E. DIGGING IN BASEMENT.) (Deviation from the standard will result in revocation of this permit and imposition of further penalties.) NOTE: CONTRACTOR LISTED AS A "SOLE PROPRIETOR" AND HAS NO EMPLOYEES AND/OR WORKERS COMPENSATION INSURANCE-ALL SUBCONTRACTORS REQUIRE SEPARATE LICENSES AND INSURANCE. SEPARATE PERMITS REQUIRED FOR PLUMBING ELECTRICAL AND MECHANICAL WORK. NO OTHER WORK ALLOWED UNDER THIS PERMIT
- Recorded transfer$60K transfer
2020
- Recorded transfer$3K transfer
2018
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, 10:53 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)