Multi-family report
1735 Diamond St
11 bd11 ba3 stories3,717 sqftRM1built 2016
Individual, other or unknown mailing address
Assessment and City record timeline
Published City assessments for this building 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$11K 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$650K 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$650K 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$582K 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$602K 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$602K 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$602K 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$602K 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$602K 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$682K 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$682K 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$500K 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 ↗
- Permit · 2015-06-03Zoning/useThis 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 · 2015-11-18New constructionThis 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 · 2016-01-22MechanicalThis 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 · 2016-02-19AdministrativeThis 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 · 2016-02-19SuppressionThis 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 ↗
- Permit · 2016-03-14PlumbingThis 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 · 2016-05-18ElectricalThis 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 · 2016-05-23PlumbingThis 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 · 2016-10-03AdministrativeThis 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 · 2011-07-06CLIP 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 · 2011-07-06EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2012-09-15CLIP 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 · 2012-09-15EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2013-05-10EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2013-05-10CLIP 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 · 2013-07-22EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2013-07-22CLIP 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 · 2014-06-19EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2014-06-19CLIP 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 · 2015-08-21CLIP 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 · 2015-08-21EXT A-VACANT LOT CLEAN/MAINTAIA 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 · 2016-10-14CO- BLDG OCCUPIED PRE-COA 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 · 2016-10-14PERME- WK DOES NOT CONFORMA 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 · 2016-10-14BP_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 · 2016-01-02DEBRIS REMOVE - CONSTRA 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 · 2016-11-18BP_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 ↗
- License · 2016-10-20LOPSONZSKI 1735 W DIAMOND ST LP: Rental landlord or residential registration initially issuedA 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 · 2024-04-08Fire 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 · 2024-06-28Sprinkler 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 ↗
- Appeal · 2015-10-23Building standards appealA challenge or request reviewed through a City appeals process. Filing an appeal does not show who prevailed; read the decision, conditions, and related permit or violation.How Philadelphia L&I appeals work ↗
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.
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- InspectionBP_BLDG
- LicenseLOPSONZSKI 1735 W DIAMOND ST LP: Rental landlord or residential registration initially issued
- L&I violationCO- BLDG OCCUPIED PRE-CO
- L&I violationPERME- WK DOES NOT CONFORM
- InspectionBP_BLDG
- PermitAdministrative
- PermitPlumbing
- PermitElectrical
- PermitPlumbing
- PermitAdministrative
- PermitSuppression
- PermitMechanical
- L&I violationDEBRIS REMOVE - CONSTR
- PermitNew construction
- AppealBuilding standards appeal
- L&I violationCLIP VIOLATION NOTICE
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- PermitZoning/use
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- L&I violationCLIP VIOLATION NOTICE
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
Flags: material assessment exemption; legal basis and term unverified · active rental license · 1 zoning/board appeal on record. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$4,456/year estimated property tax
2026 taxable assessment $318,300 × 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 $499,800. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 3211842002026 OPA taxes $318,300 of $682,100 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.
See the assessment math →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.”
The assessment exemption gap
OPA's 2026 roll shows a partial assessment exemption. The annual difference is measurable; the reason for it and what happens after a sale are not established here.
$318,300 taxable basis
$682,100 scenario basis
- Legal basis or program
- Approval or expiration date
- Treatment after a sale
- Current Tax Center balance
Show the assessment math
2026: ($682,100 assessed − $363,800 exempt) × 1.3998% ≈ $4,456/year
Full-assessment scenario: $682,100 × 1.3998% ≈ $9,548/year
Do not treat the full-assessment scenario as inevitable or assume the current relief transfers. Obtain the approval history and verify the live Tax Center account before relying on either number.
The property, on paper
OPA physical field record.
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
1700 block of Diamond St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1733 Diamond St · 1737 Diamond St
L&I license dates · data through Jul 25, 2026
Business licenses at this address Latest pull
What L&I has registered at this OPA parcel, newest initial license date first.
No L&I business license is on record at this address in data through Jul 25, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
Rental · Initial issue date Oct 20, 2016 · Filed expiration Oct 19, 2026
A license is an L&I registration, not proof that a business is open, operating today, or located at this storefront. Dates are license dates. Events are deduped by parcel, business identity, and license type, so a renewal is not shown as another opening. Other permit and filing types remain in the full source ledger.
Open every source row 30 dated rows
- CertificationSprinkler Certification
Certification BC-2024-019973 · Certified
Expires 2025-06-28
- CertificationFire Alarm Certification
Certification BC-2024-009629 · Certified
Expires 2025-04-08
- InvestigationBP_BLDG
Case 559642 · PASSED
The cited inspection visit was marked passed.
- License issue eventLOPSONZSKI 1735 W DIAMOND ST LP: Rental landlord or residential registration initially issued
License 717136 · Active
License event. Registration does not prove present operation or storefront occupancy.
- ViolationCO- BLDG OCCUPIED PRE-CO
Case 559642 · Violation 4114098 · Code A-701.1/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationPERME- WK DOES NOT CONFORM
Case 559642 · Violation 4114097 · Code A-302.10/33 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 559642 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitAdministrative
Permit 726444 · COMPLETED
TEMPORARY CERTIFICATE OF OCCUPANCY FOR 90 DAYS
- PermitPlumbing
Permit 694179 · COMPLETED
INSTALL 5" LATERAL,CURB TRAP AND FAI-PA1#20161440411-"SELF-CERTIFICATION'S ARE NO LONGER PERMITTED" - "ALL EXCAVATIONS AND PLUMBING TRENCHES IN EXCESS OF 5 FEET IN DEPTH MUST HAVE APPROVED SHORING IN PLACE AT THE TIME OF INSPECTION"
- PermitElectrical
Permit 669525 · COMPLETED
COMPLETE NEW WIRING, LOW VOLTAGE WIRING RG6 & CAT5E LONGEST RUN 300FT PER 2008 NEC (TRIPLEX) NORTH DISTRICT NEW FIRE ALARM PER NFPA 72
- PermitPlumbing
Permit 665602 · COMPLETED
INTERIOR PLUMBING CONSTRUCTION FOR A NEW (3)STORY (3)FAMILY DWELLING - NOTE: EXTERIOR & 5"SEWER/1-1/2"WATER CONNECTIONS TO THE CITY MAINS REQUIRE SEPARATE PERMIT(S) - THE BACKFLOW PREVENTION CONTAINMENT DEVICE SHOWN ON THE PLANS IS OPTIONAL AND NOT REQUIRED IN THIS OCCUPANCY PER SECTION P-806.2 OF THE PHILADELPHIA PLUMBING CODE 2004 - INSTALLATION PER THE APPROVED PLANS AND THE PHILADELPHIA PLUMBING CODE 2004
- PermitAdministrative
Permit 664824 · COMPLETED
FOR THE AMENDMENT OF PERMIT AP#620607 FOR REVISIONS TO ELEVATIONS OF FOOTING AND FLOOR LEVELS, AND WIDTH OF THE STRUCTURE WITH PLANS AS APPROVED BY PHILADELPHIA HISTORICAL COMMISSION.
- PermitSuppression
Permit 661612 · COMPLETED
INSTALL NEW FIRE SUPPRESSION SYSTEM WITH 2" FIRE SERVICE AND 2" WILKINS 950XLT2 BACKFLOW PREVENTION ASSEMBLY IN ACCORDANCE WITH NFPA 13R THROUGHOUT THE ENTIRE BUILDING. ALL WORK SHALL COMPLY WITH THE APPROVED PLANS. ALL WORK SHALL BE PERFORMED BY A FIRE SUPPRESSION CONTRACTOR LICENSED BY THE CITY OF PHILADELPHIA.
- PermitMechanical
Permit 662507 · COMPLETED
INSTALLATION OF 3 HEAT PUMP SYSTEMS WITH ALL REWUIRED DUCT WORK. ALL DUCT WORK WILL BE SELF CONTAINED IN EACH LIVING SPACE.
- ViolationDEBRIS REMOVE - CONSTR
Case 620607 · Violation 3828975 · Code A-104.1/5 · CLOSEDCASE
City marked the case closed; that does not mean the original condition never existed.
- PermitNew construction
Permit 620607 · COMPLETED
FOR THE ERECTION OF A NEW LIGHT-FRAMED ATTACHED STRUCTURE FOR THREE (3) DWELLING UNITS TO INCLUDE NEW EGRESS WINDOW WELL INSTALLATIONS. HISTORIC COMMISSION-APPROVED SHOP DRAWINGS TO BE REQUIRED FOR FRONT FACADE INSTALLATION. *SEPARATE PERMITS REQUIRED FOR INSTALLATION OF ELECTRICAL, PLUMBING, MECHANICAL, AND FIRE SUPPRESSION SYSTEMS.*
- AppealBuilding standards appeal
Appeal 26053 · CLOSED · APPROVED
Related permit 620607 · ON 9/03/15, THE DEPARTMENT OF LICENSES AND INSPECTIONS ISSUED A NOTICE OF REFUSAL FOR APPLICATION #620607.
- ViolationCLIP VIOLATION NOTICE
Case 498652 · Violation 3685597 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 498652 · Violation 3685598 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- PermitZoning/use
Permit 612523 · COMPLETED
NEW 3 STORY TRIPLEX WITH CELLAR PER ATTACHED DRAWINGS.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 437863 · Violation 3223217 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 437863 · Violation 3223216 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 392816 · Violation 2871287 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 392816 · Violation 2871286 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 380133 · Violation 2790039 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 380133 · Violation 2790038 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 350422 · Violation 2672659 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 350422 · Violation 2672660 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 285666 · Violation 2133549 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 285666 · Violation 2133550 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
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 26, 2026, 7:44 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)
