2026 taxable assessment $95,500 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $210,600; it is not the 2026 billed-year value.
House report
4554 Mercer St
3 bd · 2 stories · 1,222 sqft · RSA5 · built 1920
Owner-occupancy signal · assessed $196K (2026) · 2027 OPA assessment $211K · sold 2×. On the 4500 block of Mercer St.
BlockReport AI · cited public records
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Property summary
Assessment$195,5002026 OPA assessment · 2027: $210,600
Last sale$35KRecorded 2003 · later nominal deed
Est. tax bill$1,337/year2026 OPA · Homestead-adjusted
Tax delinquencyNo 2022 matchNot proof account is current
Permits1Every fetched City permit
Violations4 open12 historical across 4 cases
“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 4532120002026 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$74K transfer recorded in 2003. Addition and/or Alteration permit recorded in 2023.
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 1920: 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.
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
4 open violations: the clock matters
Most L&I appeals must be filed within 30 days; unsafe or imminently dangerous orders can carry a shorter deadline. Unresolved notices can lead to fees, court enforcement, City abatement work, and liens. Read the dated notice and verify its current status with L&I.
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
$195,500
2026 billed-year assessment · 2027: $210,600 · built 1920
Price / sq ft
$172
block $172 · in line w/ block
Assessment change
+66%
+5%/yr since 2016 · 2027 +8% vs 2026
Est. tax bill / yr
$1,337
0.68% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Times sold
2
latest deed has shared-name parties
Assessment vs. the block and ZIP · every dated City record marked on the line
- OPA assessment · 2016$127K 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$127K 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$127K 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$140K 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$151K 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$151K 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$151K 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$200K 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$200K 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$196K 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$196K 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$211K 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 · 2003Deed / sale $74KA 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 ↗
- Deed / sale · 2003Deed / sale $35KA 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 · 2023-07-25Addition 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 ↗
- L&I violation · 2018-08-22HIGH WEEDS-CUTA 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 · 2018-08-22CLIP 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 ↗
- L&I violation · 2018-08-22RUBBISH/GARBAGE EXTERIOR-OWNERA 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 · 2018-08-22ANIMAL DROPPINGSA 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 · 2023-06-13VACANT STRUCTURE LICENSEA 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 · 2023-06-13L&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 ↗
- L&I violation · 2023-04-27VACANT STRUCTURE & LANDA 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 · 2023-04-27EXTERIOR AREA SANITATIONA 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 · 2025-02-22HVAC SYSTEMA 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 · 2025-02-22DUCTWORKA 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 · 2025-02-22ALTER EXISTING PLUMBINGA 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 · 2025-02-22ALTER ELECTRICAL WIRINGA 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 · 2025-10-11L&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 19137 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 record16 events · exact dates, newest first
- InspectionL&I investigation
- L&I violationHVAC SYSTEM
- L&I violationDUCTWORK
- L&I violationALTER EXISTING PLUMBING
- L&I violationALTER ELECTRICAL WIRING
- PermitAddition and/or Alteration
- L&I violationVACANT STRUCTURE LICENSE
- InspectionL&I investigation
- L&I violationVACANT STRUCTURE & LAND
- L&I violationEXTERIOR AREA SANITATION
- L&I violationHIGH WEEDS-CUT
- L&I violationCLIP VIOLATION NOTICE
- L&I violationRUBBISH/GARBAGE EXTERIOR-OWNER
- L&I violationANIMAL DROPPINGS
- Deed / saleDeed / sale $74K
- Deed / saleDeed / sale $35K
The paper trail
Permit on record$74K transfer recorded in 2003. Addition and/or Alteration permit recorded in 2023.
- 2003 $74KTransfer$35KTransfer
- 2018 4 L&I violationsL&I
- 2023 4 L&I violationsL&IAddition and/or AlterationPermitL&I: 2 failed, 1 passedL&I visit
- 2025 4 L&I violationsL&IInspection failed ×4L&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 19 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- InvestigationL&I investigation
Case CF-2025-011511 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationHVAC SYSTEM
Case CF-2025-011511 · Violation VI-2025-008998 · Code A-301.1/46 · OPEN
- ViolationDUCTWORK
Case CF-2025-011511 · Violation VI-2025-008999 · Code A-301.1/43 · OPEN
- ViolationALTER EXISTING PLUMBING
Case CF-2025-011511 · Violation VI-2025-009000 · Code A-301.1/55 · OPEN
- ViolationALTER ELECTRICAL WIRING
Case CF-2025-011511 · Violation VI-2025-009001 · Code A-301.1/51 · OPEN
- PermitAddition and/or Alteration
Permit RP-2023-006475 · Expired
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. 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, underpinning and excavations (i.e., digging in basement). Any work/alterations to the basement/cellar are expressly prohibited unless documented as an existing habitable space with heights and means of egress per conditions of the EZ standard. separate permits required for mechanical, electric and plumbing, etc. *No basement alterations of any kind were proposed or approved for this permit* *No structural alterations of any kind were proposed or approved for this permit* Replace exterior siding, 2nd floor window IN EXISTING OPENING, replace drywall 2nd bedroom, living room.
- ViolationVACANT STRUCTURE LICENSE
Case CF-2023-055863 · Violation VI-2023-041937 · Code 9-3905 · SVN ISSUED
Resolution: SVN ISSUED
- InvestigationL&I investigation
Case CF-2023-036394 · PASSED
The cited inspection visit was marked passed.
- InvestigationL&I investigation
Case CF-2023-055863 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationVACANT STRUCTURE LICENSE
Case CF-2023-036394 · Violation VI-2023-027685 · Code 9-3905 · SVN ISSUED
Resolution: SVN ISSUED
- ViolationVACANT STRUCTURE & LAND
Case CF-2023-036394 · Violation VI-2023-027686 · Code PM15-301 · COMPLIED
Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXTERIOR AREA SANITATION
Case CF-2023-036394 · Violation VI-2023-027687 · Code PM15-302.1 · COMPLIED
Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationL&I investigation
Case CF-2023-036394 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationHIGH WEEDS-CUT
Case 650974 · Violation 4785623 · Code CP-312A · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 650974 · Violation 4785620 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationRUBBISH/GARBAGE EXTERIOR-OWNER
Case 650974 · Violation 4785621 · Code CP-305 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationANIMAL DROPPINGS
Case 650974 · Violation 4785622 · Code CP-311 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- Recorded transfer$74K transfer
2003
- Recorded transfer$35K transfer
2003
What this record suggests
The City file documents 1 permit touching drywall / interior finishing, electrical work, plumbing, roof work. Status needs checking in the official file; that documents the filing, not the present quality of the work.
Flags: 4 open L&I violations · 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.
Bedrooms
3
Stories
2
Interior
1,222 sqft
livable area
Lot
1,213 sqft
Basement
Full
city code D
Heat
Hot water / radiators
city code B
Central air
No
Exterior condition
Above average
city code 3
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.
Block context
4554 Mercer St sits on the 4500 block of Mercer St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 4552 Mercer St · 4556 Mercer 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, 10:50 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)