2026 taxable assessment $491,800 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $513,000; it is not the 2026 billed-year value.
House report
428 W School House Ln
3 stories · 2,234 sqft · RSA3 · built 1890
Owner-occupancy signal · assessed $492K (2026) · 2027 OPA assessment $513K. On the 400 block of W School House Ln.
BlockReport AI · cited public records
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Property summary
Assessment$491,8002026 OPA assessment · 2027: $513,000
Last sale$340KRecorded 2013 · later nominal deed
Est. tax bill$6,884/year2026 taxable assessment × 1.3998%
Tax delinquencyNo 2022 matchNot proof account is current
Permits7Every fetched City permit
Violations0 openNo historical match in fetched records
“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 1240727002026 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.”
What stands out
From the public recordNew construction
Record summarynew construction appears in a 2014 permit.
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
Built 1890: 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 RSA3: one household by right
Single-family attached. 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.
The last transfer used nominal consideration
The latest deed records $100 or less and shared-name parties. That is not a usable market-sale price and can reflect a family, estate, gift, correction, or entity transfer. Inspect the deed and order a title search rather than inferring the relationship or chain.
If you own it
$1,399/yr may be unclaimed
This home reads owner-occupied but shows no Homestead Exemption, which removes $100,000 from the taxable assessment (worth up to $1,399/yr). Applying through the City is free and takes minutes.
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
$491,800
2026 billed-year assessment · 2027: $513,000 · built 1890
Price / sq ft
$230
block $180 · above block
Assessment change
+145%
+9%/yr since 2016 · 2027 +4% vs 2026
Est. tax bill / yr
$6,884
1.4% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Times sold
0
latest deed has shared-name parties
Assessment vs. the block and ZIP · every dated City record marked on the line
- OPA assessment · 2016$209K 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$209K 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$209K 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$349K 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$335K 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$335K 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$335K 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$383K 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$383K 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$492K 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$492K 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$513K 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 · 2014-09-08OperationsThis 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 · 2016-03-17Zoning/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 · 2016-03-31New 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 · 2016-07-11PlumbingThis 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 · 2016-08-02MechanicalThis 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 · 2016-08-04ElectricalThis 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 ↗
- Appeal · 2016-01-20Zoning board appealA challenge or request reviewed through a City appeals process. Filing an appeal does not show who prevailed; read the decision, conditions, and related permit or violation.How Philadelphia L&I appeals work ↗
Property assessmentBlock median & rangeZIP 19144 medianAssessmentAppealPermit
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 record7 events · exact dates, newest first
- PermitElectrical
- PermitMechanical
- PermitPlumbing
- PermitNew construction
- PermitZoning/use
- AppealZoning board appeal
- PermitOperations
The paper trail
New constructionnew construction appears in a 2014 permit.
- 2014 OperationsPermit
- 2016 Appeal grantedZoningZoning/usePermitNew constructionPermitPlumbingPermitPlumbingPermitMechanicalPermitElectricalPermit
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 8 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- PermitElectrical
Permit 712513 · COMPLETED
WIRE & FINISH SWITCHES, RECEPTS, LIGHTS, SMOKES/CO DETECTORS AS PER 2008 NEC (NORTH DISTRICT)
- PermitMechanical
Permit 711939 · COMPLETED
INSTALL 2 TON CONDENSER AND A COIL ,WITH RELATED DUCT WORK
- PermitPlumbing
Permit 706272 · COMPLETED
WATER SERVICE, LATERAL, TRAP, HOUSE DRAIN, FAI & ALL INTERIOR PA1#2016-1583223"SELF-CERTIFICATION'S ARE NO LONGER PERMITTED" - "ALL EXCAVATIONS AND PLUMBING TRENCHES IN EXCESS OF 5 FEET IN DEPTH MUST HAVE APPROVED SHORING IN PLACE AT THE TIME OF INSPECTION"THE INSTALLATION WILL COMPLY WITH THE PHILADEPHIA PLUBMING CODE 2004
- PermitPlumbing
Permit 694276 · ABANDONED
INSTALL NEW SEWER FROM STREET TO BLDG. INSTALL 3/4" WATER DISTRIBUTION PIPE. INSTALL 3PC BATH/KITCHEN SINK/WASHER/HWH PA20161410506(SFD)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 674124 · COMPLETED
NEW CONSTRUCTION 3 STORY. DETACHED SINGLE FAMILY DWELLING AND GARAGE PARKING BELOW. 1 LOT WITH MULTIPLE BUILDINGS.NO CAR LIFT. ADDITIONAL PERMITS REQ: ELECTRICAL, PLUMBING, HVAC.
- PermitZoning/use
Permit 638142 · COMPLETED
NEW CONSTRUCTION SINGLE FAMILY APARTMENT AND GARAGE WITH CURBCUT ALONG WINONA STREET
- AppealZoning board appeal
Appeal 26413 · OPEN · Granted
Related permit 638142 · PERMIT FOR THE CONSTRUCTION OF A SEMI-DETACHED STRUCTURE TO BE USED AS AN INTERIOR OFF-STREET PARKING AND A SINGLE-FAMILY ABOVE ON THE SAME LOT WITH AN EXISTING STRUCTURE USED AS AN EXISTING SINGLE-FAMILY DWELLING. SIZE AND LOCATION AS SHOW
- PermitOperations
Permit 23128 · COMPLETED
09/10/2014 ERECT ASSEMBLY TENT (20'X60')
What this record suggests
The City file documents 7 permits touching kitchen work, bathroom work, electrical work, plumbing. 6 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
Flags: 1 zoning/board appeal on record · latest deed has shared-name parties — relationship unverified. 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.
Stories
3
Interior
2,234 sqft
livable area
Lot
14,653 sqft
Heat
Undetermined
city code H
Central air
No
Exterior condition
Above average
city code 3
Above averageBelow average
Interior condition
Above average
city code 3
Above averageBelow average
Quality grade
C
assessor's grade
ABCDE
Zoning
RSA3
city zoning code
Zoning appeals
1
OPEN · Granted · 2016
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 428 W School House Ln 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 (2013) a 30-year mortgage ran about 3.98% — 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
428 W School House Ln sits on the 400 block of W School House Ln. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 426 W School House Ln · 424 W School House Ln
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 11, 2026, 4:25 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)