2026 taxable assessment $470,000 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $542,300; it is not the 2026 billed-year value.
Apartment building report
1731 Diamond St
3 stories · 2,496 sqft · RM1 · built 1915
Apartment building · 3 units · Diamond Property Associat · assessed $470K (2026) · 2027 OPA assessment $542K. On the 1700 block of Diamond St.
BlockReport AI · cited public records
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Property summary
Assessment$470,0002026 OPA assessment · 2027: $542,300
Last sale$399KRecorded 2018
Est. tax bill$6,579/year2026 taxable assessment × 1.3998%
Tax delinquencyNo 2022 matchNot proof account is current
Permits10Every fetched City permit
Violations0 open8 historical across 2 cases
“Open” reflects records available then historical records keep their source dates estimates are labeled
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 8811462852026 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 recordRenovated & sold on
Why it mattersBought for $342K in 2013, major alteration permit in 2008, sold for $399K in 2018 (+196%).
View supporting records →The property record, over time
Every dated deed, permit, inspection, license, violation, certification, and appeal is placed on the City’s annual assessment line. Select a point to read what happened; the line is an assessment history—not a sale-price chart or appraisal. OPA has also published a 2027 assessment of $542,300; it is not yet the billed-year tax basis.
Assessment history · all dated City records marked on the line
- OPA assessment · 2017$387K 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$593K 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$399K 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$406K 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$406K 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$406K 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$406K 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$406K 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$470K 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$470K 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$542K 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 · 2013Deed / sale $342KA 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 · 2018Deed / sale $399KA 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 · 2007-03-12UseThis 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 · 2007-03-15Major 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 · 2008-02-20DemolitionThis permit category usually covers partial or complete removal 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 · 2008-03-27Major 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 · 2008-07-11PlumbingThis 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 · 2008-11-18ElectricalThis 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 · 2008-05-30SuppressionThis permit category usually covers fire-suppression systems or related life-safety 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 · 2007-07-20VACANT BLDG UNSECURED COUNTA 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 · 2007-07-20VACANT PROP STANDARD (likely: vacant-property enforcement standard)A legacy L&I label associated with vacant-property requirements. It may concern licensing, securing, or maintaining a vacant structure; the notice and cited code control, and this row alone does not prove the property is vacant now.Read Philadelphia Code §9-3905 ↗
- L&I violation · 2007-07-20LICENSE-VAC RES BLDG (vacant residential building license required)This usually records a requirement to obtain a Vacant Structure License for an unoccupied residential building. Check later license and compliance rows because it does not establish present vacancy or an unresolved violation.How the City licenses vacant residential property ↗
- L&I violation · 2007-07-20PROSEC- STD INFO (likely: Standard enforcement or prosecution notice)Legacy L&I shorthand; the case notice contains the actual required correction and deadlines.How L&I violations and orders work ↗
- Inspection · 2007-07-20HCEU 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 · 2008-03-28LICENSE-VAC RES BLDG (vacant residential building license required)This usually records a requirement to obtain a Vacant Structure License for an unoccupied residential building. Check later license and compliance rows because it does not establish present vacancy or an unresolved violation.How the City licenses vacant residential property ↗
- L&I violation · 2008-03-28VACANT PROP STANDARD (likely: vacant-property enforcement standard)A legacy L&I label associated with vacant-property requirements. It may concern licensing, securing, or maintaining a vacant structure; the notice and cited code control, and this row alone does not prove the property is vacant now.Read Philadelphia Code §9-3905 ↗
- L&I violation · 2008-03-28PROSEC- STD INFO (likely: Standard enforcement or prosecution notice)Legacy L&I shorthand; the case notice contains the actual required correction and deadlines.How L&I violations and orders work ↗
- L&I violation · 2008-03-28VACANT BLDG UNSECURED COUNTA 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 · 2008-03-28BRU INSPA 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 · 2012-03-01HCEU 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 ↗
- License · 2006-08-08RentalA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- License · 2019-05-15RentalA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- Certification · 2023-12-27Fire Alarm CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
- Certification · 2025-06-11Fire Alarm CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
Property assessmentAssessmentDeed / saleL&I violationPermitInspectionLicenseCertification
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 record24 events · exact dates, newest first
- CertificationFire Alarm Certification
- CertificationFire Alarm Certification
- LicenseRental
- Deed / saleDeed / sale $399K
- Deed / saleDeed / sale $342K
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- PermitElectrical
- PermitPlumbing
- PermitSuppression
- L&I violationLICENSE-VAC RES BLDG (vacant residential building license required)
- L&I violationVACANT PROP STANDARD (likely: vacant-property enforcement standard)
- L&I violationPROSEC- STD INFO (likely: Standard enforcement or prosecution notice)
- L&I violationVACANT BLDG UNSECURED COUNT
- InspectionBRU INSP
- PermitMajor alteration
- PermitDemolition
- L&I violationVACANT BLDG UNSECURED COUNT
- L&I violationVACANT PROP STANDARD (likely: vacant-property enforcement standard)
- L&I violationLICENSE-VAC RES BLDG (vacant residential building license required)
- L&I violationPROSEC- STD INFO (likely: Standard enforcement or prosecution notice)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- PermitMajor alteration
- PermitUse
- LicenseRental
Apartment buildingBuilding report
This is a apartment building, recorded under the city's apartments category. The homeowner tools (rent estimate, homestead playbook) don't apply, so they're hidden. The full record and owner trail are below.
What it is
Apartment building
Apts Dormitory Masonry
Owner
Diamond Property Associat
OPA tax treatment
Assessed $470K
Taxable assessment on the roll
$ / sq ft
$217
above the $151 median for 3,983 apartments parcels citywide
Licensed units
3
active rental license
Assessed value
$470,000
2026 OPA · 2027: $542,300
Interior area
2,496 sqft
Lot size
1,700 sqft
Stories
3
Built
1915
Zoning
RM1
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 28 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- CertificationFire Alarm Certification
Certification BC-2025-029959 · Certified
Expires 2026-06-11
- CertificationFire Alarm Certification
Certification BC-2023-026344 · Certified
Expires 2024-12-27
- LicenseRental
License 812610 · Active
Diamond Property Associates LLC · Expires 2027-05-14
- Recorded transfer$399K transfer
2018
- Recorded transfer$342K transfer
2013
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 121579 · 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.
- PermitElectrical
Permit 171366 · COMPLETED
FIRE CONTROL PANEL, 5 SMOKES, 2 PULL STATIONS, 3 HORN STROBES, 4 SYSTEM HORNS AND 1 DIGITAL COMMUNICATORS AS PER NFPA-72 (NORTH DISTRICT)
- PermitPlumbing
Permit 163949 · COMPLETED
INSTALLING 1" WATER SERVICE
- PermitElectrical
Permit 144770 · COMPLETED
NEW SERVICE 200AMP 3 WITH NEW DISCONNECT TO EACH APARTMENT PANEL, 1 - 16 CIRCUIT PANEL, 12 - 2 RESID WIRING, 12 DUPLEX RECEPTS, 3 GFI RECEPTS, 5 SWITCHES, SINGLE PHASE 5 LIGHTS AS PER 2005 NEC (NORTH DISTRICT)
- PermitSuppression
Permit 153680 · COMPLETED
INSTALL NEW SPRINKLER SYSTEM AS PER PLAN.
- PermitPlumbing
Permit 145939 · COMPLETED
CT
- PermitPlumbing
Permit 143274 · COMPLETED
6 WC, 6 LAVS, 6 SH, 3 KS, 3 HWH, 3 LT
- ViolationLICENSE-VAC RES BLDG (vacant residential building license required)
Case 153656 · Violation 894338 · COMPLIED
This usually records a requirement to obtain a Vacant Structure License for an unoccupied residential building. Check later license and compliance rows because it does not establish present vacancy or an unresolved violation. City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT PROP STANDARD (likely: vacant-property enforcement standard)
Case 153656 · Violation 894339 · COMPLIED
A legacy L&I label associated with vacant-property requirements. It may concern licensing, securing, or maintaining a vacant structure; the notice and cited code control, and this row alone does not prove the property is vacant now. City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationPROSEC- STD INFO (likely: Standard enforcement or prosecution notice)
Case 153656 · Violation 894337 · COMPLIED
Legacy L&I shorthand; the case notice contains the actual required correction and deadlines. City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT BLDG UNSECURED COUNT
Case 153656 · Violation 894340 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBRU INSP
Case 153656 · CLOSED
City marked the record closed; open the case for the closing reason.
- InvestigationBRU INSP
Case 153656 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitMajor alteration
Permit 137677 · COMPLETED
ALTERATIONS TO CREATE 3 DWELLING UNITS.
- PermitDemolition
Permit 133566 · COMPLETED
INTERIOR DEMOLITION OF NON BEARING PARTITIONS
- ViolationVACANT BLDG UNSECURED COUNT
Case 121579 · Violation 634430 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationVACANT PROP STANDARD (likely: vacant-property enforcement standard)
Case 121579 · Violation 634429 · COMPLIED
A legacy L&I label associated with vacant-property requirements. It may concern licensing, securing, or maintaining a vacant structure; the notice and cited code control, and this row alone does not prove the property is vacant now. City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationLICENSE-VAC RES BLDG (vacant residential building license required)
Case 121579 · Violation 634428 · COMPLIED
This usually records a requirement to obtain a Vacant Structure License for an unoccupied residential building. Check later license and compliance rows because it does not establish present vacancy or an unresolved violation. City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationPROSEC- STD INFO (likely: Standard enforcement or prosecution notice)
Case 121579 · Violation 634427 · COMPLIED
Legacy L&I shorthand; the case notice contains the actual required correction and deadlines. 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 121579 · 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.
- PermitMajor alteration
Permit 48128 · EXPIRED
IMPROVEMENTS TO EXISTING APARTMENT BUILDING, INCLUDING THE CONVERSION OF THE FIRST FLOOR TO AN APARTMENT FOR A TOTAL OF 3 APARTMENTS.
- PermitUse
Permit 61522 · COMPLETED
THREE (3) APARTMENTS
- LicenseRental
License 380479 · Inactive
WILLINGTON PROPERTIES LLC · Expires 2014-02-28 · Inactive 2014-03-20
What this record suggests
The City file documents 10 permits touching electrical work, plumbing. 9 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
Who's behind it
Diamond Property Associat · corporate / LLC owner
• Tax bills mail to 5 W 5th Street, Bridgeport PA, 19405 — outside Philadelphia
• Holds an active rental license for this address
Block context
1731 Diamond St sits on the 1700 block of Diamond St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 1729 Diamond St · 1733 Diamond 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, 1:38 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)