2026 assessment
$195K
OPA value, not a listing price
House report
3510 Mercer St
2 bd1 ba2 stories1,085 sqftRSA5built 1910
Property at a glanceHouse
Individual, other or unknown mailing address
ZIP 19134 area
Port Richmond · Kensington
3500 block of Mercer St
Assessment and City record timeline
Published City assessments for this house against its block and ZIP. Dated City filings are marked on the same line. Select one to read it. Assessments are tax-roll values, not sale prices or appraisals.
- OPA assessment · 2016$85K 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$85K 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$85K 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$118K 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$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 · 2021$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 · 2022$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 · 2023$183K 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$183K 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$195K 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$195K 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$191K 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 · 2020Deed / sale $165KA 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 · 2010-01-21Major alterationA broad legacy permit work category for a substantial building alteration. It can include changed layouts, partitions, fixtures, finishes, structural work, or occupancy-related work, but only the approved scope and plans say what this permit actually authorized; separate trade permits may be required.What Philadelphia building permits can cover ↗
- Permit · 2010-02-03ElectricalThis 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 ↗
- Permit · 2010-02-19PlumbingThis 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 ↗
- L&I violation · 2007-06-14VACANT BLDG 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 · 2007-06-14CLIP 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 · 2007-06-14RUBBISH/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 · 2007-06-14HIGH 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 · 2007-06-14BARGEBOARD CORNICEA 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 · 2007-06-14HCEU INSP (Housing Code Enforcement Unit inspection)A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended.What Philadelphia inspections check ↗
- L&I violation · 2008-08-08STOP WORK ORDERA 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 · 2008-08-08PERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)Building permit required for interior alteration or repairHow L&I violations and orders work ↗
- Inspection · 2008-08-08BP_BLDGA 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 · 2009-11-10PERMP- INST NEW 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 · 2009-11-10STOP WORK ORDERA 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 · 2009-11-10BP_BLDGA 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 · 2010-02-17PERMB- WK DONE W/O NOTIFY INSPA 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 · 2010-02-17BP_BLDGA 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 ↗
- Inspection · 2003-08-18L_CLIPA 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 ↗
- Inspection · 2003-09-24L_CLIPA 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 ↗
- Inspection · 2007-07-16HCEU INSP (Housing Code Enforcement Unit inspection)A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended.What Philadelphia inspections check ↗
- Inspection · 2008-09-02BP_BLDGA 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 ↗
- Inspection · 2009-12-18BP_BLDGA 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 ↗
- Inspection · 2010-01-29BP_BLDGA 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 ↗
- Inspection · 2010-02-23BP_BLDGA 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 19134 (Port Richmond · Kensington) 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 record25 events · exact dates, newest first
- Deed / saleDeed / sale $165K
- InspectionBP_BLDG
- PermitPlumbing
- L&I violationPERMB- WK DONE W/O NOTIFY INSP
- InspectionBP_BLDG
- PermitElectrical
- InspectionBP_BLDG
- PermitMajor alteration
- InspectionBP_BLDG
- L&I violationPERMP- INST NEW PLUMBING
- L&I violationSTOP WORK ORDER
- InspectionBP_BLDG
- InspectionBP_BLDG
- L&I violationSTOP WORK ORDER
- L&I violationPERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)
- InspectionBP_BLDG
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- L&I violationVACANT BLDG KEEP CLEAN GET LIC
- L&I violationCLIP VIOLATION NOTICE
- L&I violationRUBBISH/GARBAGE EXTERIOR-OWNER
- L&I violationHIGH WEEDS-CUT
- L&I violationBARGEBOARD CORNICE
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionL_CLIP
- InspectionL_CLIP
Flags: historical tax ledger through 2016 recorded $128 with a lien entry · latest deed has shared-name parties; relationship unverified. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$2,734/year estimated property tax
2026 taxable assessment $195,300 × 1.3998%. This is an estimate, not a bill or account balance. The City maintains payments, credits, interest, and the current amount due.
OPA has published a 2027 assessment of $190,700. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 4512742002026 taxable assessment equals the full assessed value.
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 $128.46 and a lien entry. It is shown as historical context only.
2015$105.80 total · $0.00 principal · $0.00 interest · $13.11 penalty2016$22.66 total · $20.85 principal · $0.32 interest · $0.21 penalty
For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”
The property, on paper
OPA physical field record.
Bedrooms
2
Bathrooms
1
Stories
2
Interior
1,085 sqft
livable area
Lot
932 sqft
Basement
Full
city code D
Heat
Hot water / radiators
city code B
Central air
No
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.
Block context
3500 block of Mercer St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 3508 Mercer St · 3512 Mercer St
L&I licenses checked through Jul 23, 2026
No business or residential license records
No business license or residential registration matched this OPA parcel in the latest City data.
Open every source row 25 dated rows
- Recorded transfer$165K transfer
2020
- InvestigationBP_BLDG
Case 220167 · PASSED
The cited inspection visit was marked passed.
- PermitPlumbing
Permit 263067 · COMPLETED
INSTALL NEW 4" MAIN DRAIN, 3" STACK. ALL NEW DRAIN AND WATER LINES FOR 1-1/2 BATHROOM, KITCHEN AND LAUNDRY. ALL FINISH PLUMBING WORK FOR SAME
- ViolationPERMB- WK DONE W/O NOTIFY INSP
Case 258146 · Violation 1593579 · Code A-302.11/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 220167 · PASSED
The cited inspection visit was marked passed.
- PermitElectrical
Permit 260625 · COMPLETED
PRESENT SERVICE OK. INSTALL 20 RECEPTACLES, 15 LIGHT FIXTURES, 18 SWITCHES AS PER 2005 NEC (EAST DIST)
- InvestigationBP_BLDG
Case 220167 · PASSED
The cited inspection visit was marked passed.
- PermitMajor alteration
Permit 258146 · COMPLETED
REPAIR/REPLACE FRAMING AND PARTIAL REAR FOUNDATION ON SAME FOOTPRINT. INTERIOR ALTERATION. NO CHANGE IN REAR ADDITION SIZE.
- InvestigationBP_BLDG
Case 220167 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationPERMP- INST NEW PLUMBING
Case 220167 · Violation 1593593 · Code A-301.1/54 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationSTOP WORK ORDER
Case 220167 · Violation 1593594 · Code A-504.1/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 220167 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationBP_BLDG
Case 173631 · PASSED
The cited inspection visit was marked passed.
- ViolationSTOP WORK ORDER
Case 173631 · Violation 1056196 · Code A-504.1/1 · ERROR
- ViolationPERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)
Case 173631 · Violation 1056195 · Code A-301.1/4 · ERROR
- InvestigationBP_BLDG
Case 173631 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 117008 · PASSED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.
- ViolationVACANT BLDG KEEP CLEAN GET LIC
Case 117008 · Violation 599450 · Code PM-306.0/90 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 117008 · Violation 599446 · 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 117008 · Violation 599447 · Code CP-305 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationHIGH WEEDS-CUT
Case 117008 · Violation 599448 · Code CP-312A · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationBARGEBOARD CORNICE
Case 117008 · Violation 599449 · Code CP-345 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 117008 · FAILED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationL_CLIP
Case 14732 · CLOSED
City marked the record closed; open the case for the closing reason.
- InvestigationL_CLIP
Case 14732 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
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 24, 2026, 12:42 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)