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.
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
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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 →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
- Diamond Property Associat
- Tax mailing address
- 5 W 5TH STREET, BRIDGEPORT PA, 19405
- L&I district
- NORTH
- Building ID (BIN)
- 1503372
- OPA account
- 881146285
Permits10Every dated permit
Violation cases28 violation records · 0 open
Investigations42 failed · 1 passed · 1 closed
Building certifications2Latest result: Certified
Business licenses21 active
Appeals0No match
PermitsPermit number, issued date, work and City status10
UsePermit 61522
Mar 12, 2007 COMPLETED Completed Mar 12, 2007
THREE (3) APARTMENTS
Major alterationPermit 48128
Mar 15, 2007 EXPIRED
IMPROVEMENTS TO EXISTING APARTMENT BUILDING, INCLUDING THE CONVERSION OF THE FIRST FLOOR TO AN APARTMENT FOR A TOTAL OF 3 APARTMENTS.
DemolitionPermit 133566
Feb 20, 2008 COMPLETED Completed Aug 22, 2008
INTERIOR DEMOLITION OF NON BEARING PARTITIONS
Major alterationPermit 137677
Mar 27, 2008 COMPLETED Completed Aug 19, 2008
ALTERATIONS TO CREATE 3 DWELLING UNITS.
PlumbingPermit 143274
Apr 4, 2008 COMPLETED Completed Oct 20, 2008
6 WC, 6 LAVS, 6 SH, 3 KS, 3 HWH, 3 LT
PlumbingPermit 145939
Apr 16, 2008 COMPLETED Completed Apr 17, 2008
CT
ElectricalPermit 144770
May 30, 2008 COMPLETED Completed Aug 22, 2008
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)
SuppressionPermit 153680
May 30, 2008 COMPLETED Completed Nov 12, 2008
INSTALL NEW SPRINKLER SYSTEM AS PER PLAN.
PlumbingPermit 163949
Jul 11, 2008 COMPLETED Completed Aug 4, 2008
INSTALLING 1" WATER SERVICE
ElectricalPermit 171366
Nov 18, 2008 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)
Violation cases8 individual violation records; resolved history remains visible2
Case 121579CLOSED
STANDARD · Opened Jul 24, 2007 · completed Mar 2, 2012
- VACANT BLDG UNSECURED COUNTViolation 634430Jul 20, 2007 COMPLIED
- VACANT PROP STANDARDViolation 634429Jul 20, 2007 COMPLIED
- LICENSE-VAC RES BLDGViolation 634428Jul 20, 2007 COMPLIED
- PROSEC- STD INFOViolation 634427Jul 20, 2007 COMPLIED
Case 153656CLOSED
STANDARD · Opened Apr 1, 2008 · completed Apr 24, 2008
- LICENSE-VAC RES BLDGViolation 894338Mar 28, 2008 COMPLIED
- VACANT PROP STANDARDViolation 894339Mar 28, 2008 COMPLIED
- PROSEC- STD INFOViolation 894337Mar 28, 2008 COMPLIED
- VACANT BLDG UNSECURED COUNTViolation 894340Mar 28, 2008 COMPLIED
InvestigationsEvery inspector visit, including CLOSED outcomes4
HCEU INSPCase 121579
Jul 20, 2007 FAILED
BRU INSPCase 153656
Mar 28, 2008 CLOSED
BRU INSPCase 153656
Mar 28, 2008 FAILED
HCEU INSPCase 121579
Mar 1, 2012 PASSED
Building certificationsInspection result and filed expiration date by L&I building ID2
Fire Alarm CertificationCertification BC-2023-026344
Inspected Dec 27, 2023 Certified Expires Dec 27, 2024
Fire Alarm CertificationCertification BC-2025-029959
Inspected Jun 11, 2025 Certified Expires Jun 11, 2026
Business licensesHistorical and active licenses are both retained2
RentalLicense 380479
WILLINGTON PROPERTIES LLC
Revenue code 3202 · First issued Aug 8, 2006 Inactive Expiration Feb 28, 2014 Inactive Mar 20, 2014
RentalLicense 812610
Diamond Property Associates LLC
Revenue code 3202 · First issued May 15, 2019 Active Expiration May 14, 2027
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.
3 resolve before relying
5 verify
1 favorable dated record
Resolve before relyingZoning approval is not the occupancy fileUse permit #61522: COMPLETED.
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 permit row needs file-level verification1 permit not marked completed: 48128 (EXPIRED).
Why it mattersIssued work is not the same as approved final work. L&I uses final inspections and required certifications to close construction permits; expired, withdrawn, and completed are different City statuses.
Verify nextOpen the permit file and confirm final inspections, holds, and any resulting occupancy certificate.
Open the controlling City guidance ↗Resolve before relyingA life-safety certification appears expiredFire Alarm Certification: Certified through Jun 11, 2026
Why it mattersFire-protection certifications apply to the named system and inspection period only; they are not a whole-building safety certificate. Philadelphia generally requires annual sprinkler, standpipe, fire-alarm, special-hazard, and emergency-power inspections where those systems exist.
Verify nextRequest the correction/reinspection and current filed certificate.
Open the controlling City guidance ↗VerifyA rental license does not transfer with the deed1 active Rental License record matched.
Why it mattersIf dwelling space is rented, the buyer must obtain a new annual Rental License; the seller’s license is not transferable. New applications require proof of ownership and legal occupancy, tax compliance, no open L&I violations, and lead compliance where applicable.
Verify nextPlan the buyer’s replacement license before settlement.
Open the controlling City guidance ↗VerifyTax mail goes outside Philadelphia; owner residence still needs verificationOPA mails the property tax record outside Philadelphia (5 W 5TH STREET, BRIDGEPORT PA, 19405).
Why it mattersA tax mailing destination does not establish where the owner lives. If a rental owner lives outside Philadelphia, the City requires a managing agent with a Philadelphia mailing address; the owner remains legally responsible.
Verify nextVerify the buyer’s residence and, if the buyer will live outside Philadelphia, identify the Philadelphia managing agent on the new license application.
Open the controlling City guidance ↗VerifyLead compliance is a separate recordOPA records a 1915 build year; BlockReport does not receive the Health Department’s unit-level lead certificate file.
Why it mattersPhiladelphia requires covered pre-March-1978 rentals to be certified lead-safe or lead-free for a new or renewed lease and for a new or renewed Rental License. A certificate is unit-specific; a renovation does not by itself create an exemption.
Verify nextRequest the current lead certificate or City exemption for every dwelling unit.
Open the controlling City guidance ↗VerifyFailed inspections are dated events—not the current condition2 failed, 1 passed, and 1 CLOSED investigation outcome are in the fetched history; the latest dated visit was PASSED on Mar 1, 2012.
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 separate Commercial Trash account may applyOPA classifies the parcel as apartments. 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 8 historical violations across 2 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.
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
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)