2026 taxable assessment $66,500 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $167,600; it is not the 2026 billed-year value.
House report
3144 Diamond St
3 stories · 2,577 sqft · RM1 · built 1915
Owner-occupied · assessed $167K (2026) · 2027 OPA assessment $168K. On the 3100 block of Diamond St.
Property summary
Assessment$166,5002026 OPA assessment · 2027: $167,600
Last sale—No sale value available
Est. tax bill$931/year2026 OPA · Homestead-adjusted
Tax delinquency$7KCity snapshot · Jun 2022
Permits2Every fetched City permit
Violations0 open4 historical across 2 cases
“Open” reflects records available then historical records keep their source dates estimates are labeled
BlockReport AI · cited public records
Ask the questions this record raises.
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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 3231214002026 OPA removes $100,000 from the taxable assessment through the owner-occupant exemption.
Historical delinquency sources Record found
$7,026.93 was recorded for this parcel in Philadelphia's June 2022 delinquency snapshot for 1984–2015. That amount may have been paid, reduced, or increased since; it is not a current payoff figure.
$981.38 principal$4,793.55 interest$259.23 penalty$992.77 other charges
The snapshot’s 2022 context used $40,800 total assessment, $40,800 taxable, and $0 exempt/abated. Those historical fields can differ from today’s OPA exemption status.
A separate historical parcel ledger ending in 2016 records $7,749.09 and a lien entry. It is shown as historical context only.
1984$28.22 total · $0.00 principal · $26.24 interest · $0.79 penalty1985$232.21 total · $0.00 principal · $215.59 interest · $6.62 penalty1986$216.87 total · $0.00 principal · $200.56 interest · $6.31 penalty1987$206.17 total · $0.00 principal · $190.03 interest · $6.14 penalty1988$189.71 total · $0.00 principal · $173.93 interest · $5.78 penalty1989$183.53 total · $0.00 principal · $167.79 interest · $5.74 penalty1990$199.95 total · $0.00 principal · $172.55 interest · $6.08 penalty1991$203.78 total · $0.00 principal · $175.85 interest · $6.39 penalty1992$208.58 total · $0.00 principal · $170.38 interest · $6.39 penalty1993$266.14 total · $0.00 principal · $220.72 interest · $8.52 penalty1994$266.66 total · $0.00 principal · $219.07 interest · $8.52 penalty1995$246.87 total · $0.00 principal · $200.06 interest · $7.88 penalty1997$234.52 total · $0.00 principal · $190.49 interest · $7.88 penalty1998$281.00 total · $50.77 principal · $183.62 interest · $7.88 penalty1999$358.41 total · $121.65 principal · $187.95 interest · $8.52 penalty2000$346.80 total · $121.65 principal · $177.00 interest · $8.52 penalty2001$335.19 total · $121.65 principal · $166.05 interest · $8.52 penalty2004$300.37 total · $121.65 principal · $133.20 interest · $8.52 penalty2005$288.78 total · $121.65 principal · $122.26 interest · $8.52 penalty2006$277.17 total · $121.65 principal · $111.31 interest · $8.52 penalty2007$265.56 total · $121.65 principal · $100.36 interest · $8.52 penalty2008$253.95 total · $121.65 principal · $89.41 interest · $8.52 penalty2009$242.35 total · $121.65 principal · $78.46 interest · $8.52 penalty2010$230.74 total · $121.65 principal · $67.51 interest · $8.52 penalty2011$238.72 total · $133.69 principal · $62.16 interest · $9.36 penalty2012$233.86 total · $138.84 principal · $52.06 interest · $9.72 penalty2013$227.78 total · $143.83 principal · $40.99 interest · $10.07 penalty2014$670.47 total · $431.48 principal · $84.14 interest · $30.20 penalty2015$514.73 total · $339.48 principal · $35.65 interest · $23.76 penalty
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 recordImproved
Why it mattersOwner pulled a major alteration permit in 2018.
View supporting records →Records to verify together
Rule-based groupings across this property's dated public records. Each flag shows the records that belong in the same verification step and where the inference stops.
Records to verify together
More than one separately dated public record deserves a current-status check.
Evidence: $7,027 appeared in the City's June 2022 delinquency snapshot · a lien number appears in the historical tax ledger through 2016
Limit: A screening signal, not a foreclosure prediction. Tax entries are historical and must be verified with Philadelphia Revenue.
Assessment/permit mismatch
The assessment jumped 81% in 2025, but no matching permit appears in the property timeline.
Evidence: assessment moved from $91,800 to $166,500 · no permit shown in 2024-2026
Limit: Not proof of unpermitted work; reassessment, corrected data, or a permit under another parcel can also explain it.
Transparent record rules, not a score or forecast. Each flag is a prompt to verify the cited records, not a prediction or allegation.
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 1915: 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.
The last transfer used nominal consideration
The latest deed records $100 or less. 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
$7,749 in the historical tax ledger through 2016
Historical context only, not a current payoff figure; that ledger also contains a lien entry. Verify today's balance and lien status directly with Philadelphia Revenue before relying on it.
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.
The investment read
How this house has moved and where it's pointed: the city's assessed value (not a listing price) over 12 years, charted against its block; appreciation is that history's pace, and the 5-year figure simply extends it. Yield estimates rent-vs-price from area rents. Ask the record to dig into any number.
Assessed value
$166,500
2026 billed-year assessment · 2027: $167,600 · built 1915
Price / sq ft
$65
block $23 · above block
Appreciation
+474%
+19%/yr, city 6.5%
In 5 years (~2031)
~$169K
+19%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax bill / yr
$931
0.56% effective
Jun 2022 tax snapshot
$7K
recorded then · verify current
Gross yield
7.7%
≈$1K/mo rent
Times sold
0
Value vs. the block, over time — sales, permits & L&I events marked on the line
This houseBlock median & rangeL&I violationPermitInspection
Highlight
The paper trail
ImprovedOwner pulled a major alteration permit in 2018.
- 2011 L&I violationL&I
- 2015 L&I violationL&IInspection failed ×2L&I visit
- 2016 Inspection failed ×4L&I visit
- 2017 Appeal city affirmedZoning2 L&I violations incl EXTERIOR STRUCT UNSAFE COND 7L&IInspection failed ×4L&I visitAppeal city affirmedZoning
- 2018 Major alterationPermitL&I: 5 failed, 1 passedL&I visitMajor alterationPermit
City record timeline
Every dated deed, permit, inspection, license, violation, certification, and appeal—together.
The timeline combines the report’s transfer history with every successfully fetched L&I and zoning row. A date or status is the City’s filed record, not a statement that the condition remains current; use the official file for live detail.
- Recorded owner
- Individual owner on record
- L&I district
- NORTH
- OPA account
- 323121400
What this record suggests
The City file documents 2 permits. 2 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
- InvestigationPRECOURT
Case 598663 · PASSED
- InvestigationPRECOURT
Case 598663 · FAILED
- PermitMajor alteration
Permit 908235 · COMPLETED
MAKE SAFE PERMIT - FOR THE RE-CONSTRUCTION OF THE REAR EXTERIOR WALL TO RESOLVE CASE #598663. ABUTTING SIDEWALK MUST BE CLOSED WITH FENCING A MINIMUM OF 6' IN HEIGHT. SEPARATE STREETS DEPARTMENT PERMIT REQUIRED FOR SIDEWALK CLOSURE. A SEPARATE PERMIT IS REQUIRED FOR ANY ADDITIONAL ALTERATIONS THAT ARE NOT SPECIFICALLY ADDRESSED ON CASE #598663. NO INSULATION ON THIS PERMIT AND NO WALL CAVITIES TO BE CLOSED UP ON THIS PERMIT.
- InvestigationCSUINITIAL
Case 598663 · CLOSED
- PermitMajor alteration
Permit 823178 · COMPLETED
MAKE SAFE PERMIT - RE-CONSTRUCT REAR 2 STORY EXTERIOR WALL. CONTACT AREA INSPECTOR PRIOR TO START OF WORK. PROVIDE SUB LIST TO AREA INSPECTOR PRIOR TO START OF WORK. PROTECTION OF ADJOINING PROPERTY REQUIRED.
- AppealRB_LIRB
Appeal 30794 · CLOSED · City affirmed
Related permit 298716 · THE INDICATED WALL IS A COMMON WALL AND HAD ALREADY BEEN REPAIRED.
- ViolationEXTERIOR STRUCT UNSAFE COND 7
Case 598663 · Violation 4845775 · COMPLIED
- ViolationUNSAFE STRUCTURE
Case 598663 · Violation 4845774 · COMPLIED
- InvestigationCSUINITIAL
Case 298716 · FAILED
- AppealRB_LIRB
Appeal 28384 · OPEN · City affirmed
Related permit 298716 · LOOSE BRICKS BORDERLINE WITH 3146 DIAMOND STREET. THE SIDEWALL HAS NEXT TO 3146 DIAMOND STREET. I COULD NOT HAVE ACCESS TO IT BECAUSE MY NEIGHBOR HAS FENCE AND LOCKS TO IT.
- ViolationWALL LOOSE/MISS BRICKS
Case 298716 · Violation 4317425 · CLOSEDCASE
- ViolationWALL PARTIALLY COLLAPSED
Case 298716 · Violation 4317424 · CLOSEDCASE
- LicenseVacant Residential Property / Lot
License 305292 · Inactive
NATIONAL MUSLIM IMPROVEMENT ASSOCIATION · Expires 2007-02-28 · Inactive 2012-12-22
- LicenseRental
License 213323 · Inactive
NATIONAL MUSLIM IMPROVEMENT ASSOCIATION · Expires 2005-02-28 · Inactive 2005-02-04
Free record guide
How Philadelphia’s property system works
These explainers are free because the record only helps if you know what it can—and cannot—prove. Use the linked City guidance for the controlling rule.
Permits and inspections 2 on this property
This property’s file includes BP_ALTER permit records. A permit documents authorized scope and a City process; it is not by itself proof that every described improvement was completed, remains in place, or meets today’s condition expectations.
L&I inspections are scheduled at defined stages; final inspection and required certifications are separate steps in closing out applicable work.
How construction and repair permits work ↗See City inspection stages by permit type ↗Assessments and taxes
The OPA assessment is the City’s value on the tax roll—not an asking price, appraisal, or live account balance. The taxable assessment can differ from the full assessment because the City roll records exemptions or other treatment; the report keeps those fields separate.
Your annual estimate uses the taxable assessment. Payments, credits, interest, and the amount due are maintained separately in Tax Center.
How the Office of Property Assessment works ↗Philadelphia property-tax guidance ↗Violations, cases, and status check current status
An open row is a dated City status, not a diagnosis of current condition or a conclusion about the property. Read the case, notice, and any subsequent inspection together, then verify the live file.
How L&I code enforcement works ↗City violation and order types ↗Flags: $7K recorded in the June 2022 delinquency snapshot — verify current balance · historical tax ledger through 2016 recorded $8K with a lien entry · 2 zoning/board appeals on record. 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.
Stories
3
Interior
2,577 sqft
livable area
Lot
1,508 sqft
Garage
1 space
Exterior condition
Below average
city code 5
Above averageBelow average
Interior condition
Below average
city code 5
Above averageBelow average
Quality grade
C+
assessor's grade
ABCDE
Zoning
RM1
city zoning code
Zoning appeals
2
CLOSED · City affirmed · 2017
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 3144 Diamond St takes, at your price and your rate. Taxes start with an annual estimate from the City’s taxable assessment, not a current bill or balance; rent starts at the area median. Assessed value is not an asking price — set the price slider to the real one.
Mortgage
—
P&I · 30-yr fixed
All-in monthly
—
+ taxes & insurance
Cash to close
—
down + ~4% costs
Cash flow
—
rent − all costs · /mo
Cap rate
—
NOI ÷ price
Cash-on-cash
—
year-1 return on cash in
Estimates for orientation, not advice. Assumes a 30-year fixed loan, $1,400/yr insurance, 1% of price/yr maintenance; taxes use this parcel's taxable assessment, not a live Tax Center balance.
Block context
3144 Diamond St sits on the 3100 block of Diamond St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 3142 Diamond St · 3146 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, 10:19 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)