2026 taxable assessment $253,500 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $358,300; it is not the 2026 billed-year value.
Mixed-use report
4528 Wilde St
2,421 sqft · RSA5 · built 1900
Owner-occupied · assessed $254K (2026) · 2027 OPA assessment $358K · sold 3×. On the 4500 block of Wilde St.
Property summary
Assessment$253,5002026 OPA assessment · 2027: $358,300
Last sale$235KRecorded 2019
Est. tax bill$3,548/year2026 taxable assessment × 1.3998%
Tax delinquency$5KCity snapshot · Jun 2022
Permits2Every fetched City permit
Violations0 open3 historical across 3 cases
“Open” reflects records available then historical records keep their source dates estimates are labeled
BlockReport AI · cited public records
Ask the questions this record raises.
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Question or correct this record
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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 8715274102026 taxable assessment equals the full assessed value.
Historical delinquency sources Record found
$5,222.45 was recorded for this parcel in Philadelphia's June 2022 delinquency snapshot for 2016–2020. That amount may have been paid, reduced, or increased since; it is not a current payoff figure.
$3,544.68 principal$541.54 interest$248.13 penalty$888.10 other charges
The snapshot’s 2022 context used $220,400 total assessment, $220,400 taxable, and $0 exempt/abated. Those historical fields can differ from today’s OPA exemption status.
A separate historical parcel ledger ending in 2016 records $97.50. It is shown as historical context only.
2016$97.50 total · $89.74 principal · $1.34 interest · $0.90 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 recordImproved
Why it mattersBought for $450K in 2006. Owner pulled a wall covering replacement permit in 2024.
View supporting records →"Built 1900" is usually a placeholder
Why it mattersPhiladelphia records use 1900 as a stand-in when the real construction year was never documented. Treat the age as unknown, not as 120+ years.
View supporting records →City Property History
Fetched L&I and zoning records
Every row successfully fetched for this report is counted below. Dataset availability and matching can differ from the City's interactive file; use the official link for current detail.
- Recorded owner
- Matthew Bopp
- Tax mailing address
- 4528 WILDE ST, PHILADELPHIA PA, 19127
- L&I district
- NORTH
- Building ID (BIN)
- —
- OPA account
- 871527410
Permits2Every dated permit
Violation cases33 violation records · 0 open
Investigations53 failed · 1 passed · 1 closed
Building certifications0No match
Business licenses20 active
Appeals0No match
PermitsPermit number, issued date, work and City status2
AlterationPermit 292818
Jul 26, 2010 COMPLETED Completed Feb 5, 2013
INSTALL HANDICAP RAMP.
Wall Covering ReplacementPermit GM-2024-010296
Nov 27, 2024 Completed Completed Aug 18, 2025
EZ EXTERIOR WALL COVERINGS - For the Applications of Exterior Wall Coverings as per attached standards. Deviations from these standards shall result in permit revocation and require submission of construction and site plans. 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. Exterior wall apply insulation foam board 1x3 fir strip new vinyl siding
Violation cases3 individual violation records; resolved history remains visible3
Case 258345CLOSED
CONSTRUCTION SERVICES · Opened Nov 12, 2010
- UNAPPROVED MAT'L OR ASSEMViolation 1982459Nov 12, 2010 CLOSEDCASE
Case CF-2024-109426CLOSED
NOTICE OF VIOLATION · Opened Oct 5, 2024 · completed Feb 7, 2026
- EXTERIOR WALL FINISHESViolation VI-2024-084465Oct 5, 2024 COMPLIED
Case 292818CLOSED
Opened Date unavailable
- UNAPPROVED MAT'L OR ASSEMViolation 1884885Nov 12, 2010 ERROR
InvestigationsEvery inspector visit, including CLOSED outcomes5
BP_BLDGCase 258345
Nov 12, 2010 FAILED
BP_BLDGCase 258345
Jan 13, 2011 FAILED
BP_BLDGCase 258345
Feb 16, 2011 CLOSED
L&I investigationCase CF-2024-109426
Oct 5, 2024 FAILED
L&I investigationCase CF-2024-109426
Feb 7, 2026 PASSED
Building certificationsInspection result and filed expiration date by L&I building ID0
No building certifications matched this parcel in the fetched City dataset.
Business licensesHistorical and active licenses are both retained2
Food Preparing and ServingLicense 914751
HAGGERTY DELI LLC
Revenue code 3120 · First issued Jan 19, 2023 Expired Expiration Jan 18, 2024
Vacant Residential Property / LotLicense 0960974
shital patel
Revenue code 3219 · First issued Sep 11, 2024 Inactive Expiration Sep 10, 2025 Inactive Nov 9, 2025
AppealsApplication status and decision are separate City fields0
No appeals matched this parcel in the fetched City dataset.
City of Philadelphia OPA, L&I and Zoning Board records, shown as filed. A CLOSED investigation is an outcome label, not a missing visit; an appeal's application status and decision may differ.
Legal due diligence
What this record proves—and what it does not.
These checks are triggered by this property’s actual City rows. They identify the controlling document to verify; they do not declare a use legal, a building safe, or title clear.
2 resolve before relying
5 verify
1 favorable dated record
Resolve before relyingZoning approval is not the occupancy fileThe record identifies more than one dwelling/use.
Why it mattersPhiladelphia says a zoning approval or Property Sales Certification can identify a use without proving that it was established under the Building Code. A change of use, unit count, exits, or fire rating can require a Building Permit and Certificate of Occupancy.
Verify nextVerify the lawful use, unit count, associated construction permits, and Certificate of Occupancy with L&I.
Open the controlling City guidance ↗Resolve before relyingA dated tax balance needs a current payoff$5,222.45 was recorded in the City’s 2022-06 delinquency snapshot for 2016–2020.
Why it mattersThat is historical evidence, not today’s amount due. A current exemption, payment, credit, or assistance agreement can coexist with an older snapshot row.
Verify nextCheck period balances and request a dated Property Payoff statement for settlement.
Open the controlling City guidance ↗VerifyResidential and business space run on separate compliance tracksOPA classifies this parcel as mixed-use.
Why it mattersThe zoning/use and occupancy file must cover the actual residential and commercial spaces. Dwelling units can require Rental Licenses and lead compliance; the operator can separately need an Activity License and sector license; installed fire systems can require annual certification.
Verify nextMatch every dwelling and business use to the zoning permit, CO, current operator licenses, and life-safety filings.
Open the controlling City guidance ↗VerifyResidential form does not establish rental useOPA classifies the parcel as mixed-use; no active Rental License row matched.
Why it mattersA multi-unit or mixed-use classification does not prove that space is currently rented. If dwelling space is rented, Philadelphia generally requires a current Rental License and related occupancy, tax, violation, and lead compliance.
Verify nextConfirm actual occupancy first; if any unit is rented, verify the license and legal unit count with L&I.
Open the controlling City guidance ↗VerifyFailed inspections are dated events—not the current condition3 failed, 1 passed, and 1 CLOSED investigation outcome are in the fetched history; the latest dated visit was PASSED on Feb 7, 2026.
Why it mattersA PASSED or FAILED value applies to that inspection visit. CLOSED is a separate source status; none of the three alone proves the parent permit or violation case closed—or describes today’s condition.
Verify nextOpen the parent case/permit for each material failure and confirm its later disposition.
Open the controlling City guidance ↗VerifyA historical business license is not current operating authorityFood Preparing and Serving #914751: Expired; Vacant Residential Property / Lot #0960974: Inactive since Nov 9, 2025
Why it mattersA license record proves the licensed activity existed at that time. An inactive or expired license does not establish that the business still operates—or that it may legally reopen under the same use.
Verify nextIf business income matters, verify the current tenant, use registration, and active license in eCLIPSE.
Open the controlling City guidance ↗VerifyA separate Commercial Trash account may applyOPA classifies the parcel as mixed-use. BlockReport does not receive a current Commercial Trash account balance.
Why it mattersPhiladelphia charges qualifying small commercial, mixed-use, and multi-unit properties that use City collection; exemptions and private collection can change applicability. A use category alone does not prove a fee is due.
Verify nextCheck the Commercial Trash account inside the date-effective Property Payoff.
Open the controlling City guidance ↗Favorable dated recordNo open violation; closed history remains relevantThe fetched record shows 0 open and 3 historical violations across 3 cases.
Why it mattersA closed case is materially better than an open one, but it does not by itself prove that every altered use, unit, or concealed condition matches today’s approvals.
Verify nextUse the closed cases to target the inspection and occupancy-file review.
Open the controlling City guidance ↗Closing file: checks no public-record summary can replace5 documents/searches to assign before settlement
Property Sales Certification
The seller must obtain Philadelphia’s certificate showing the base zoning, last use in the zoning record, and open violations. The City warns that it does not prove Building Code occupancy or show zoning overlays.
Next: Obtain the fresh certificate and compare it with the CO, permits, and Atlas overlays.
Official guidance ↗Date-effective City Property Payoff
The Tax Center Property Payoff covers Real Estate Tax, Commercial Trash, and L&I abatement-work invoices. Philadelphia says it does not include business-tax debts or liens, water and sewer charges, or fines for code violations.
Next: Request the City statement effective through settlement; read every period and invoice.
Official guidance ↗Professional title and water-lien searches
OPA ownership, deed summaries, and a zero tax balance are not clear title. Mortgages, judgments, municipal claims, water liens, easements, heirs, and other encumbrances require separate searches.
Next: Use a Pennsylvania lawyer/title company and obtain owner’s title insurance; order the separate water search/payoff.
Official guidance ↗Separate water-lien guidance ↗Seller-specific tax relief is not the buyer’s bill
LOOP and low-income or senior Real Estate Tax freezes depend on the qualifying owner and continued program eligibility; a buyer cannot assume the seller’s capped or frozen bill continues. A separately verified property abatement often remains with the property for its remaining term, but program-specific new-owner filing, use, and tax-compliance conditions still must be confirmed—not inferred from the reduced assessment alone.
Next: Have Revenue or OPA identify every current benefit, model the buyer’s bill without seller-specific relief, and confirm any verified abatement in writing.
Official guidance ↗Separate water-lien guidance ↗Seller disclosure and independent inspections
For a covered Pennsylvania residential transfer, obtain the statutory seller disclosure. It reports the seller’s knowledge; it is not a warranty, title search, code review, or substitute for inspections. Because OPA dates this building before 1978, separately obtain the required federal/City lead disclosures and any test results.
Next: Have the agreement and disclosure reviewed for this transaction’s coverage and exceptions.
Official guidance ↗Informational only—not a legal opinion, title report, code inspection, tax payoff, or substitute for a Pennsylvania lawyer, title company, inspector, or tax professional.
Records to verify together
Rule-based groupings across this property's dated public records. Each flag shows the records that belong in the same verification step and where the inference stops.
Records to verify together
More than one separately dated public record deserves a current-status check.
Evidence: $5,222 appeared in the City's June 2022 delinquency snapshot · failed L&I inspection activity in 2024
Limit: A screening signal, not a foreclosure prediction. Tax entries are historical and must be verified with Philadelphia Revenue.
Assessment/permit mismatch
The assessment jumped 41% in 2027, but no matching permit appears in the property timeline.
Evidence: assessment moved from $253,500 to $358,300 · no permit shown in 2026-2028
Limit: Not proof of unpermitted work; reassessment, corrected data, or a permit under another parcel can also explain it.
Transparent record rules, not a score or forecast. Each flag is a prompt to verify the cited records, not a prediction or allegation.
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 1900: 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.
Multiple units and RSA5 zoning need reconciliation
The assessment or license record describes multiple units while the zoning district is generally single-family. That does not establish whether the use is lawful, nonconforming, abandoned, or incorrectly coded. Verify the registered use and Certificate of Occupancy with L&I before pricing multiple rents.
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.
$98 in the historical tax ledger through 2016
Historical context only, not a current payoff figure. Verify today's balance and lien status directly with Philadelphia Revenue before relying on it.
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.
The investment read
How this building has moved and where it's pointed: the city's assessed value (not a listing price) over 12 years, charted against its block; appreciation is that history's pace, and the 5-year figure simply extends it. Yield estimates rent-vs-price from area rents. Ask the record to dig into any number.
Assessed value
$253,500
2026 billed-year assessment · 2027: $358,300 · built 1900
Price / sq ft
$148
block $247 · below block
Appreciation
-41%
-5%/yr, city 6.5%
In 5 years (~2031)
~$357K
-5%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax bill / yr
$3,548
0.99% effective
Jun 2022 tax snapshot
$5K
recorded then · verify current
Gross yield
5.7%
≈$2K/mo rent
Times sold
3
Value vs. the block, over time — sales, permits & L&I events marked on the line
This houseBlock median & rangeL&I violationPermitInspection
The paper trail
ImprovedBought for $450K in 2006. Owner pulled a wall covering replacement permit in 2024.
- 2006 $450KSold
- 2010 2 L&I violationsL&IAlterationPermitInspection failedL&I visit
- 2011 Inspection failedL&I visit
- 2012 $200KSold$325KSold
- 2024 L&I violationL&IInspection failedL&I visitWall Covering ReplacementPermit
- 2026 Inspection passedL&I visit
Flags: $5K recorded in the June 2022 delinquency snapshot — verify current balance · historical tax ledger through 2016 recorded $98. 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.
Interior
2,421 sqft
livable area
Lot
2,438 sqft
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.
"Built 1900" is usually a placeholder
Philadelphia records use 1900 as a stand-in when the real construction year was never documented. Treat the age as unknown, not as 120+ years.
Run the numbers
What owning 4528 Wilde 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 (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
Cash to close
—
down + ~4% costs
Cash flow
—
rent − all costs · /mo
Cap rate
—
NOI ÷ price
Cash-on-cash
—
year-1 return on cash in
Estimates for orientation, not advice. Assumes a 30-year fixed loan, $1,400/yr insurance, 1% of price/yr maintenance; taxes use this parcel's taxable assessment, not a live Tax Center balance.
Block context
4528 Wilde St sits on the 4500 block of Wilde St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 4528 1/2 Wilde St · 4526 Wilde 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, 7:42 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)