2026 taxable assessment $153,800 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $299,000; it is not the 2026 billed-year value.
House report
1520 Wolf St
4 bd · 1 ba · 2 stories · 1,296 sqft · RSA5 · built 1925
Owner-occupancy signal · assessed $254K (2026) · 2027 OPA assessment $299K · sold 1×. On the 1500 block of Wolf St.
BlockReport AI · cited public records
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Property summary
Assessment$253,8002026 OPA assessment · 2027: $299,000
Last sale$274KRecorded 2021
Est. tax bill$2,153/year2026 OPA · Homestead-adjusted
Tax delinquencyNo 2022 matchNot proof account is current
Permits6Every 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 2610218002026 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 recordPermit on record
Record summary$274K transfer recorded in 2021. Addition and/or Alteration permit recorded in 2025.
View supporting records →Homestead exemption, mail goes elsewhere
Record summaryThe parcel claims the homestead exemption (owner lives here) while the tax bill mails to 2811 Miles Ave, Baltimore Md, 21211. Those two facts sit in tension on the record — there can be innocent reasons, but one of them is usually out of date.
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 1925: 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
$253,800
2026 billed-year assessment · 2027: $299,000 · built 1925
Price / sq ft
$231
block $207 · above block
Assessment change
+84%
+6%/yr since 2016 · 2027 +18% vs 2026
Est. tax bill / yr
$2,153
0.85% 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
- OPA assessment · 2016$163K 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$163K 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$163K 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$180K 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$194K 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$194K 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$194K 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$240K 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$240K 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$254K 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$254K 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$299K 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 · 2021Deed / sale $274KA 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 · 2021-09-27AlterationsThis 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 · 2025-01-30Interior 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 · 2025-04-01Addition 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 · 2025-02-18AlterationsThis 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 · 2025-03-20Addition 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 ↗
- L&I violation · 2025-07-22L&I violationA 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 · 2025-07-22OVERCURRENT-PROT BRANCH PANEL LOCATION NOT PERMITTEDA 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 · 2025-07-23L&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 ↗
Property assessmentBlock median & rangeZIP 19145 medianAssessmentDeed / saleL&I violationPermitInspection
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 record9 events · exact dates, newest first
- InspectionL&I investigation
- L&I violationL&I violation
- L&I violationOVERCURRENT-PROT BRANCH PANEL LOCATION NOT PERMITTED
- PermitAddition and/or Alteration
- PermitAddition and/or Alterations
- PermitAlterations
- PermitInterior Non-Load-Bearing Wall Demo.
- PermitAlterations
- Deed / saleDeed / sale $274K
The paper trail
Permit on record$274K transfer recorded in 2021. Addition and/or Alteration permit recorded in 2025.
- 2021 AlterationsPermit$274KTransfer
- 2025 Interior Non-Load-Bearing Wall Demo.PermitAddition and/or AlterationPermitAlterationsPermitAddition and/or AlterationsPermitAddition and/or AlterationPermit2 L&I violationsL&IInspection passedL&I visit
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 10 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- InvestigationL&I investigation
Case CF-2025-073281 · PASSED
The cited inspection visit was marked passed.
- ViolationViolation
Case CF-2025-073281 · Violation VI-2025-053288 · Code 240.24 (E) · CLOSED
Resolution: CLOSED - WRITTEN IN ERROR City marked the record closed; open the case for the closing reason.
- ViolationOVERCURRENT-PROT BRANCH PANEL LOCATION NOT PERMITTED
Case CF-2025-073281 · Violation VI-2025-053287 · Code 240.24 (E) · CLOSED
Resolution: CLOSED - WRITTEN IN ERROR City marked the record closed; open the case for the closing reason.
- PermitAddition and/or Alteration
Permit EP-2025-002960 · Completed
Kitchen circuits installation, hot water heater circuit and condenser circuit. All work to be done by 2017NEC
- PermitAddition and/or Alterations
Permit MP-2025-001565 · Completed
EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES- For the installation of New Ductwork, Registers/Grilles/Diffusers, and Warm-Air Appliances as per attached standards. Deviations from these standards require submission of construction and site plans. Install 80k btu 90% gas furnace with a 3 ton coil and condenser and new duct work
- PermitAddition and/or Alteration
Permit RP-2025-001240 · 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. Separate permits are required for plumbing and electrical work and the installation of heating/cooling appliances. STRUCTURAL ALTERATION OR REPAIR IS EXPRESSLY PROHIBITED UNDER THIS PERMIT. PROHIBITED STRUCTURAL WORK INCLUDES ANY MODIFICATION 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. Replace sheetrock in approximately half of the first floor, and small portion of the second floor rear where it was damaged from a toilet flood. Replace kitchen cabinetry and countertops in existing location. Install new trim and flooring throughout, and paint. No structural work- only replacement of finishes that were water damaged
- PermitAlterations
Permit PP-2025-001852 · Completed
2 toilet, 1 shower/tub, 2 lavatory, 1 kitchen sink, and 1 hot water tank
- PermitInterior Non-Load-Bearing Wall Demo.
Permit GM-2025-000381 · Completed
For minor construction work at the subject property in accordance with all applicable provisions of the Philadelphia Code, all references codes and standards, and the attached EZ Standard, where included. Deviation from this standard shall result in permit revocation. A separate permit from the Philadelphia Department of Streets is required for any sidewalk and street closures. All means of pedestrian protection required at the site in accordance with the Philadelphia Building Code Chapter 33 shall be in place prior to start of work.
- PermitAlterations
Permit PP-2021-017517 · Expired
REPAIR/REPLACE 5 inch curb trap FAI
- Recorded transfer$274K transfer
2021
What this record suggests
The City file documents 6 permits touching kitchen work, electrical work, plumbing, roof work. 5 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
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
4
Bathrooms
1
Stories
2
Interior
1,296 sqft
livable area
Lot
900 sqft
Basement
Full, finished
city code A
Heat
Undetermined
city code H
Central air
Yes
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
Average
city code 4
Above averageBelow average
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.
Where the record looks off
Places where the city's own paperwork disagrees with itself. These are flags on the data — not problems with the property.
Homestead exemption, mail goes elsewhere
The parcel claims the homestead exemption (owner lives here) while the tax bill mails to 2811 Miles Ave, Baltimore Md, 21211. Those two facts sit in tension on the record — there can be innocent reasons, but one of them is usually out of date.
Run the numbers
What owning 1520 Wolf 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.
When this house last sold (2021) a 30-year mortgage ran about 2.96% — 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
1520 Wolf St sits on the 1500 block of Wolf St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 1518 Wolf St · 1522 Wolf St
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, 9:31 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)