2026 taxable assessment $114,000 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $754,100; it is not the 2026 billed-year value.
Multi-family report
4127 Westminster Ave
6 bd · 3 stories · 3,876 sqft · RM1 · built 2023
Entity-held · assessed $570K (2026) · 2027 OPA assessment $754K · sold 1×. On the 4100 block of Westminster Ave.
BlockReport AI · cited public records
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Property summary
Assessment$570,0002026 OPA assessment · 2027: $754,100
Last sale$52KRecorded 2019
Est. tax bill$1,596/year2026 taxable assessment · full-value scenario $7,979/year · basis and term unverified
Tax delinquencyNo 2022 matchNot proof account is current
Permits8Every fetched City permit
Violations0 open2 historical across 1 case
“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:
Property tax
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.
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 0620980002026 OPA taxes $114,000 of $570,000 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.
See the assessment math →Applying the same rate to the billed-year full assessment. OPA's numeric split does not say when or whether the current treatment changes.
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 $2,377.24 and a lien entry. It is shown as historical context only.
2001$540.98 total · $30.41 principal · $41.51 interest · $2.13 penalty2002$107.75 total · $30.41 principal · $38.77 interest · $2.13 penalty2003$104.52 total · $30.41 principal · $36.04 interest · $2.13 penalty2004$101.29 total · $30.41 principal · $33.30 interest · $2.13 penalty2005$98.06 total · $30.41 principal · $30.56 interest · $2.13 penalty2006$94.84 total · $30.41 principal · $27.83 interest · $2.13 penalty2007$91.60 total · $30.41 principal · $25.09 interest · $2.13 penalty2008$94.84 total · $33.45 principal · $24.58 interest · $2.34 penalty2009$91.28 total · $33.45 principal · $21.57 interest · $2.34 penalty2010$87.73 total · $33.45 principal · $18.56 interest · $2.34 penalty2011$90.20 total · $36.77 principal · $17.10 interest · $2.57 penalty2012$88.70 total · $38.18 principal · $14.32 interest · $2.67 penalty2013$86.85 total · $39.55 principal · $11.28 interest · $2.77 penalty2014$251.82 total · $100.17 principal · $19.53 interest · $7.01 penalty2015$241.19 total · $100.17 principal · $10.52 interest · $7.01 penalty2016$205.59 total · $104.64 principal · $1.56 interest · $1.05 penalty
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 recordNew construction
Record summary$52K transfer recorded in 2019; new construction appears in a 2020 permit with a reduced taxable assessment shown.
View supporting records →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
Verify the current tax bill and exemption
The 2026 taxable assessment implies about $1,596/yr, while applying the same rate to the full assessment would imply about $7,979/yr — $6,383/yr more. OPA's assessment split does not establish the exemption program, expiration, or buyer eligibility. Verify the basis and live bill with OPA and Revenue.
If you own it
$2,377 in the historical tax ledger through 2016
Historical context only, not a current payoff figure; that ledger also contains a lien entry. Verify today's balance and lien status directly with Philadelphia Revenue before relying on it.
If you’re the landlord
If it is rented, verify the Rental License
The fetched license records do not show an active Rental License. Ownership type or a tax mailing address does not prove that tenants occupy the property; if it is rented, verify the current license and legal occupancy in eCLIPSE.
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.
Who's behind it
4125 Westminster Ave LLC · corporate / LLC owner
• Owns 3 properties across Philadelphia under this name, assessed at $2.3M combined
• Tax bills mail to 110 Fieldcrest Ave, Edison NJ, 08837 — outside Philadelphia
Assessment and tax history
Every fetched annual City assessment for this building, 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
$570,000
2026 billed-year assessment · 2027: $754,100 · built 2023
Price / sq ft
$195
block $104 · above block
Assessment change
+11502%
+54%/yr since 2016 · 2027 +32% vs 2026
Est. tax bill / yr
$1,596
0.28% effective, reduced taxable assessment
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
- OPA assessment · 2016$7K 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$9K 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$9K 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$9K 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$9K 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$9K 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$9K 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$25K 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$570K 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$570K 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$570K 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$754K 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 · 2019Land record $52KA 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 · 2020-03-10Zoning/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 · 2021-11-29New 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 · 2021-12-22New 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 · 2022-08-26New 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 · 2023-06-08New 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 · 2023-03-14Rough-InThis 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 · 2007-04-16VACANT LOT KEEP CLEAN GET LICA 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 · 2007-04-16CLIP 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 ↗
- License · 2024-05-21RentalA 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 · 2024-12-09Fire 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 · 2026-02-03Fire 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 19104 medianAssessmentLand buyL&I violationPermitLicenseCertification
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 record12 events · exact dates, newest first
- CertificationFire Alarm Certification
- CertificationFire Alarm Certification
- LicenseRental
- PermitNew Construction
- PermitRough-In
- PermitNew Construction or Additions
- PermitNew Construction
- PermitNew construction, addition, GFA change
- PermitZoning/use
- Land buyLand record $52K
- L&I violationVACANT LOT KEEP CLEAN GET LIC
- L&I violationCLIP VIOLATION NOTICE
The paper trail
New construction$52K transfer recorded in 2019; new construction appears in a 2020 permit with a reduced taxable assessment shown.
- 2007 2 L&I violationsL&I
- 2019 $52KLand transfer
- 2020 Zoning/usePermit
- 2021 New construction, addition, GFA changePermitNew ConstructionPermit
- 2022 New Construction or AdditionsPermit
- 2023 New ConstructionPermitRough-InPermitNew ConstructionPermitNew ConstructionPermit
Records behind the chart
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.
Browse 14 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- CertificationFire Alarm Certification
Certification BC-2026-008356 · Certified
Expires 2027-02-03
- CertificationFire Alarm Certification
Certification BC-2025-015419 · Certified
Expires 2025-12-09
- LicenseRental
License 952083 · Expired
4125 Westminster LLC · Expires 2026-05-20
- PermitNew Construction
Permit FP-2023-000268 · Completed
INSTALLATION OF AN AUTOMATIC FIRE SUPPRESSION SYSTEM IN ACCORDANCE WITH NFPA 13R WITH A FIRE DEPARTMENT CONNECTION, BACKKFLOW PREVENTION DEVICE AND 2" SERVICE LINE, THROUGHOUT A THREE (3) STORY STRUCTURE. SEPARATE PERMIT REQUIRE FOR ALL PLUMBING WORK
- PermitNew Construction
Permit EP-2023-002356 · Completed
Install 400a 1ph main service. Install 5 gang meter module, Install all wiring throughout 4 apartments & common area. Install fire alarm system . Install cable tv wiring . ALL WORK IS TO BE DONE ACCORDING TO APPROVED DRAWINGS-2017 NEC,2016 NFPA-72,2018 PHILA FIRE CODE.
- PermitRough-In
Permit EP-2023-002359 · Expired
Rough-In Permit for EP-2023-002356 Install 400a 1ph main service. Install 5 gang meter module, Install all wiring throughout 4 apartments & common area. Install fire alarm system throughout as per NFPA72. Install cable tv wiring as per 2017 nec
- PermitNew Construction
Permit MP-2023-000345 · Completed
INSTALLATION OF A NEW HVAC SYSTEM FOR A NEW CONSTRUCTION FOUR FAMILY DWELLING AS PER APPROVED PLANS. *2018 IMC REVIEW*
- PermitNew Construction or Additions
Permit PP-2022-012141 · Completed
INSTALL 1.5 INCH WATER SERVICE, 1 BUILDING DRAIN, 1 CURB TRAP, 1 FAI, 2 SUMP PUMPS, 2 EJECTOR SUMP PUMPS, 4 BACKWATER VALVES, 2 HOSE BIBBS, 6 STORM DRAINS, 8 LAVATORIES, 8 WATER CLOSETS, 4 SHOWER/TUBS, 4 KITCHEN SINKS, 4 HUB DRAINS, 4 WASHING MACHINE BOXES AND 4 HOT WATER HEATERS ACCORDING TO THE 2018 PPC.
- PermitNew Construction
Permit CP-2021-006860 · Completed
FOR THE CONSTRUCTION OF A THREE-STORY STRUCTURE WITH PILOTHOUSE TO ACCESS PRIVATE ROOF DECK WITH 42-INCH GUARD RAILS, FOR USE AS A FOUR-FAMILY DWELLING, PER APPROVED PLANS.
- PermitNew construction, addition, GFA change
Permit ZP-2021-012086 · Completed
For the erection of an attached structure (not to exceed 38' in height) that includes a full basement with egress wells, a private roof deck above the second floor, and 2 private roof decks with roof access structures above the third floor level. Size and locations per plans.
- PermitZoning/use
Permit 1050274 · COMPLETED
FOR THE ERECTION OF AN ATTACHED STRUCTURE HEIGHT NTE 38' WITH ROOF DECK ACCESSED BY A PILOT HOUSE. FOR USE AS A MULTI-FAMILY FOUR (4) DWELLING UNITS.REFER TO AP# 1049090 FOR PLANS.
- Land recordLand record
2019
- ViolationVACANT LOT KEEP CLEAN GET LIC
Case 109047 · Violation 544347 · Code PM-306.0/91 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 109047 · Violation 544346 · Code CP-01 · 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 8 permits touching kitchen work, electrical work, plumbing, roof work. 7 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
Flags: material assessment exemption — legal basis and term unverified · historical tax ledger through 2016 recorded $2K with a lien entry. Informational only — not investment advice or a consumer report (FCRA).
The assessment exemption gap
OPA's 2026 taxable assessment implies about $1,596/year. Applying the same 1.3998% rate to the full assessed value would imply ~$7,979/year — $6,383/year more. That is a scenario, not a forecast: the assessment split alone does not identify the exemption program, approval date, expiration, transfer treatment, or live Tax Center balance.
2026: ($570,000 assessed − $455,984 exempt) × 1.3998% ≈ $1,596/yr
full-assessment scenario: $570,000 × 1.3998% ≈ $7,979/yr
The OPA amount does not prove a ten-year abatement or any other specific program. Obtain the approval history and verify the current Tax Center account; a buyer should not assume the seller's relief transfers or restarts.
The property, on paper
The city assessor's field record — the physical spec sheet behind the assessed number.
Bedrooms
6
Stories
3
Interior
3,876 sqft
livable area
Lot
1,615 sqft
Basement
Full
city code D
Heat
Forced hot air
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.
Run the numbers
What owning 4127 Westminster Ave 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.
When this house last sold (2019) a 30-year mortgage ran about 3.94% — 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 with an optional full-assessment stress test, 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
4127 Westminster Ave sits on the 4100 block of Westminster Ave. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 4125 Westminster Ave · 4129 Westminster Ave
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 10, 2026, 3:37 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)