House report

3947 Mount Vernon St

2 bd · 1 ba · 2 stories · 1,024 sqft · RSA5 · built 1930

Owner-occupancy signal · assessed $200K (2026) · 2027 OPA assessment $188K · sold 1×. On the 3900 block of Mount Vernon St.

Street view of 3947 Mount Vernon St
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BlockReport AI · cited public records

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Property summary

“Open” reflects records available then historical records keep their source dates estimates are labeled

Question or correct this record

BlockReport can explain a discrepancy, but it cannot rewrite an official City record. Use the agency that owns the underlying fact:

The estimate, live balance, and back-tax record are different.

BlockReport can calculate the annual tax from the City’s taxable assessment. Payments, credits, interest, and a current amount due live separately in Philadelphia Tax Center.

Estimated annual Real Estate Tax$1,400/year

2026 taxable assessment $100,000 × 1.3998%. Estimate—not a bill or account balance.

OPA also publishes a 2027 assessment of $188,300; it is not the 2026 billed-year value.

Official current account balanceCheck live

A Tax Center balance is net of bills, payments, credits, interest, and adjustments. A credit—or an amount due—is not automatically “back taxes.”

OPA 242214600
Open Philadelphia Tax Center →Choose “View period balance” to see the tax year and any credit, interest, or delinquency.
Exemption classificationHomestead exemption

2026 OPA removes $100,000 from the taxable assessment through the owner-occupant exemption.

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.”

What stands out

From the public record

What to do with this

The record, translated into moves — what a buyer, the owner, and a landlord would each want to check next under Philadelphia's actual rules.

If you’re buying

Built 1930: lead rules apply

Federal law requires a lead-paint disclosure at sale for any pre-1978 home. If it will be rented, Philadelphia also requires a lead-safe or lead-free certificate before a rental license can issue.

Zoned RSA5: one household by right

Single-family rowhouse (the classic Philly row). Converting to a duplex or apartments needs a use variance the zoning board rarely grants — Pennsylvania courts require a physical hardship of the lot itself, and economics alone do not qualify.

Derived from the fetched property records and linked City guidance as of 2026. Assessment treatment is not a substitute for an exemption approval, live balance, title report, license, occupancy certificate, or inspection. Informational only — not legal, tax, or investment advice.

Assessment and tax history

Every fetched annual City assessment for this house, compared with its block and ZIP. The figures show assessment change, the billed-year tax estimate, dated tax records, and recorded transfers. They do not estimate market appreciation or investment return.

Assessed value
$200,000
2026 billed-year assessment · 2027: $188,300 · built 1930
Price / sq ft
$184
block $167 · above block
Assessment change
+34%
+3%/yr since 2016 · 2027 -6% vs 2026
Est. tax bill / yr
$1,400
0.7% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Times sold
1

Assessment vs. the block and ZIP · every dated City record marked on the line

$0$125K$250KZIP 19104 median$188K200820122016202020242027
Property assessmentBlock median & rangeZIP 19104 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 record36 events · exact dates, newest first
  1. InspectionPRECOURT (likely: pre-court compliance inspection)
  2. LicenseVacant Residential Property / Lot
  3. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  4. Deed / saleDeed / sale $125K
  5. L&I violationLICENSE RES CAL REQUIRED
  6. L&I violationLICENSE-RES SFD/2FD
  7. L&I violationDRAINAGE-DOWNSPOUT CONNECT
  8. L&I violationDRAINAGE-DOWNSPOUT REPR/REPLC
  9. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  10. L&I violationINT-PLMBG FIXTURES-RES
  11. PermitPlumbing
  12. PermitElectrical
  13. PermitMajor alteration
  14. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  15. L&I violationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)
  16. L&I violationLICENSE-VAC RES BLDG (vacant residential building license required)
  17. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  18. L&I violationVACANT PROP STANDARD (likely: vacant-property enforcement standard)
  19. L&I violationLICENSE-VAC RES BLDG (vacant residential building license required)
  20. L&I violationINT S-WALLS REPAIR/MAINT SANI
  21. L&I violationINT A-TRASH REMOVE
  22. L&I violationINT A-EXTERMINATE/MAINTAIN
  23. L&I violationINT S-STAIRS REPAIR
  24. L&I violationINT S-FLOOR REPAIR (Repair the interior floor)
  25. L&I violationINT S-CEILING REPAIR/MAINT SAN
  26. L&I violationINT-PLMBG FIXTURES-RES
  27. L&I violationLICENSE-RES SFD/2FD
  28. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  29. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  30. L&I violationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)
  31. L&I violationPROSEC- EMERG IMMED RI
  32. InspectionBRU INSP
  33. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  34. InspectionBRU INSP
  35. L&I violationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)
  36. L&I violationINT A-EXTERMINATE, OWNER

The paper trail

$125K transfer recorded in 2015. Plumbing permit recorded in 2013.

  1. 2009 2 L&I violationsL&I
  2. 2011 10 L&I violationsL&IInspection failed ×4L&I visit
  3. 2012 2 L&I violationsL&IL&I: 2 failed, 2 passedL&I visit
  4. 2013 Major alterationPermitElectricalPermitPlumbingPermit
  5. 2014 5 L&I violationsL&IInspection failedL&I visit
  6. 2015 L&I: 2 failed, 2 passedL&I visit$125KTransfer

Browse the source ledger

The chart above is the primary timeline. This drawer preserves every underlying dated row and its filed status for source-level review.

Open the City record ↗
Browse 42 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
  1. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 352631 · PASSED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.

  2. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 462876 · PASSED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.

  3. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 462876 · FAILED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  4. LicenseVacant Residential Property / Lot

    License 673801 · Inactive

    TRIPLEX LEGACY LLC · Expires 2016-08-31 · Inactive 2016-10-30

  5. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 462876 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  6. Recorded transfer$125K transfer

    2015

  7. ViolationLICENSE RES CAL REQUIRED

    Case 462876 · Violation 3676594 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  8. ViolationLICENSE-RES SFD/2FD

    Case 462876 · Violation 3676593 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  9. ViolationDRAINAGE-DOWNSPOUT CONNECT

    Case 462876 · Violation 3676595 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  10. ViolationDRAINAGE-DOWNSPOUT REPR/REPLC

    Case 462876 · Violation 3676596 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  11. ViolationINT-PLMBG FIXTURES-RES

    Case 286878 · Violation 2214948 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  12. PermitPlumbing

    Permit 500981 · COMPLETED

    REPLACEMENT OF TOILET, TUB, LAV, KITCHEN SINK (SFD)

  13. PermitElectrical

    Permit 494655 · COMPLETED

    INSTALL ALL NEW RECEPTACLES THROUGHOUT AND INSTALL 15 RECESSED LIGHTS IN DWELLING INSTALL NEW 100AMP SERVICE AND REPLACE EXISTING SWITCHES PER 2008 NEC (SFD)

  14. PermitMajor alteration

    Permit 494495 · COMPLETED

    1000 SQUARE FEET OF INTERIOR ALTERATIONS - SINGLE FAMILY DWELLING - APPLICANT AGREES TO LIMIT THE CONSTRUCTION TO COMPLY WITH EZ PERMIT STANDARD FOR INTERIOR ALTERATIONS, DATED FEB. 2007. DEVIATIONS FROM THIS STANDARD WILL RESULT IN THE REVOCATION OF THIS PERMIT AND IMPOSITION OF FURTHER PENALTIES. LICENSED CONTRACTOR TO BE LISTED ON PERMIT SEPARATE PERMITS REQUIRED FOR PLUMBING, ELECTRIC AND HVAC. CALL INSPECTOR AT DISTRICT OFFICE AT LEAST 24 HOURS PRIOR TO STARTING WORK.*** THE LISTED GENERAL CONTRACTOR, COMFORT BASEMENT INC, HAS NO EMPLOYEES AS PER NOTARIZED LETTER. ALL SUB-CONTRACTORS ARE TO BE LICENSED IN THE CITY OF PHILADELPHIA, AND LISTED ON PERMIT. A SUB-CONTRACTORS LIST IS TO BE GIVEN TO THE INSPECTOR BEFORE ANY WORK STARTS.

  15. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 352631 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  16. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 352631 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  17. ViolationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)

    Case 352631 · Violation 2663425 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  18. ViolationLICENSE-VAC RES BLDG (vacant residential building license required)

    Case 352631 · Violation 2663424 · COMPLIED

    This usually records a requirement to obtain a Vacant Structure License for an unoccupied residential building. Check later license and compliance rows because it does not establish present vacancy or an unresolved violation. City marked this violation complied with; check the resolution date and live case for what was accepted.

  19. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 286878 · PASSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.

  20. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 274005 · PASSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.

  21. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 286878 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  22. ViolationVACANT PROP STANDARD (likely: vacant-property enforcement standard)

    Case 286878 · Violation 2214947 · COMPLIED

    A legacy L&I label associated with vacant-property requirements. It may concern licensing, securing, or maintaining a vacant structure; the notice and cited code control, and this row alone does not prove the property is vacant now. City marked this violation complied with; check the resolution date and live case for what was accepted.

  23. ViolationLICENSE-VAC RES BLDG (vacant residential building license required)

    Case 286878 · Violation 2214946 · COMPLIED

    This usually records a requirement to obtain a Vacant Structure License for an unoccupied residential building. Check later license and compliance rows because it does not establish present vacancy or an unresolved violation. City marked this violation complied with; check the resolution date and live case for what was accepted.

  24. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 274005 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  25. ViolationINT S-WALLS REPAIR/MAINT SANI

    Case 274005 · Violation 2095277 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  26. ViolationINT A-TRASH REMOVE

    Case 274005 · Violation 2095272 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  27. ViolationINT A-EXTERMINATE/MAINTAIN

    Case 274005 · Violation 2095273 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  28. ViolationINT S-STAIRS REPAIR

    Case 274005 · Violation 2095274 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  29. ViolationINT S-FLOOR REPAIR (Repair the interior floor)

    Case 274005 · Violation 2095275 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  30. ViolationINT S-CEILING REPAIR/MAINT SAN

    Case 274005 · Violation 2095276 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  31. ViolationINT-PLMBG FIXTURES-RES

    Case 274005 · Violation 2095278 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  32. ViolationLICENSE-RES SFD/2FD

    Case 274005 · Violation 2095271 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  33. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 204156 · PASSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.

  34. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 204156 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  35. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 170602 · PASSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.

  36. ViolationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)

    Case 204156 · Violation 1490698 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  37. ViolationPROSEC- EMERG IMMED RI

    Case 204156 · Violation 1490697 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  38. InvestigationBRU INSP

    Case 171309 · PASSED

    The cited inspection visit was marked passed.

  39. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 170602 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  40. InvestigationBRU INSP

    Case 171309 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  41. ViolationEXT A-CLEAN WEEDS/PLANTS (Cut or remove weeds and overgrowth from the exterior area)

    Case 171309 · Violation 1037757 · COMPEXCP

  42. ViolationINT A-EXTERMINATE, OWNER

    Case 170602 · Violation 1068117 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

What this record suggests

The City file documents 3 permits touching kitchen work, electrical work, plumbing. 3 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.

Unavailable when this report assembled: certifications. Unavailable does not mean no record.

Informational only — not investment advice or a consumer report (FCRA).

The property, on paper

The city assessor's field record — the physical spec sheet behind the assessed number.

Bedrooms
2
Bathrooms
1
Stories
2
Interior
1,024 sqft
livable area
Lot
1,218 sqft
Basement
Full
city code D
Central air
Yes
Exterior condition
Above average
city code 3
Interior condition
Average
city code 4
Quality grade
C-
assessor's grade
Zoning
RSA5
city zoning code

OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.

Run the numbers

What owning 3947 Mount Vernon St takes, at your price and your rate. Taxes start with an annual estimate from the City’s taxable assessment, not a current bill or balance; rent starts at the area median. Assessed value is not an asking price — set the price slider to the real one.

$188K
20%
6.875%
$1K/mo

When this house last sold (2015) a 30-year mortgage ran about 3.85% — Freddie Mac's average that year.

Mortgage
P&I · 30-yr fixed
All-in monthly
+ taxes & insurance
Estimated cash needed
down + 4% planning allowance
Modeled cash flow
rent − shown costs · /mo
Modeled cap rate
modeled NOI ÷ price
Modeled cash-on-cash
modeled year-1 return

Scenario for orientation, not advice. Assumes a 30-year fixed loan, $1,400/yr insurance, 1% of price/yr maintenance, and buyer cash equal to the down payment plus 4%. Taxes use this parcel's taxable assessment, not a live Tax Center balance. Cash flow and returns exclude vacancy, management, utilities, HOA or condo fees, leasing costs, income tax, and unplanned capital work.

Block context

3947 Mount Vernon St sits on the 3900 block of Mount Vernon St. Open the block report to compare its parcels, ownership and public-record history.

See the whole block →

Next door: 3945 Mount Vernon St  ·  3949 Mount Vernon St

Where this comes from

Methodology & freshness

This report was assembled Jul 10, 2026, 2:46 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: unavailable. “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)