2026 taxable assessment $310,900 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $302,100; it is not the 2026 billed-year value.
Multi-family report
3127 Diamond St
3 stories · 2,745 sqft · RM1 · built 1915
Absentee individual · assessed $311K (2026) · 2027 OPA assessment $302K · 3 licensed units · sold 2×. On the 3100 block of Diamond St.
BlockReport AI · cited public records
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Property summary
Assessment$310,9002026 OPA assessment · 2027: $302,100
Last sale$19KRecorded 2007
Est. tax bill$4,352/year2026 taxable assessment × 1.3998%
Tax delinquencyNo 2022 matchNot proof account is current
Permits6Every fetched City permit
Violations0 open3 historical across 2 cases
“Open” reflects records available then historical records keep their source dates estimates are labeled
Question or correct this record
BlockReport can explain a discrepancy, but it cannot rewrite an official City record. Use the agency that owns the underlying fact:
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 3231317002026 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 recordNew construction
Why it mattersBought for $19K in 2007, built new under a 2007 permit, sold for $50K in 2007.
View supporting records →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.
If you’re the landlord
Lead certificate is not optional
Built 1915: every rental unit needs a lead-safe or lead-free certificate on file with the City. Without one: fines up to $2,000/day per unit, tenants may withhold rent, courts can order rent refunded — and no eviction will stand.
Licensed rental — keep it that way
Renewal requires city tax clearance and zero open L&I violations on the property. A lapsed license suspends the right to collect rent or evict.
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 building has moved and where it's pointed: every fetched annual City assessment, charted against its block and ZIP; appreciation includes the full-period compound rate and the latest year-over-year change. The 5-year figure simply extends that historical pace. Yield estimates rent-vs-price from area rents. Ask the record to dig into any number.
Assessed value
$310,900
2026 billed-year assessment · 2027: $302,100 · built 1915
Price / sq ft
$110
block $23 · above block
Appreciation
+371%
+15%/yr since 2016 · 2027 -3% vs 2026
In 5 years (~2032)
~$611K
+15%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax bill / yr
$4,352
1.44% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Gross yield
4.3%
≈$1K/mo rent
Times sold
2
licensed rental
Assessment vs. the block and ZIP · every dated City record marked on the line
- OPA assessment · 2016$64K 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$64K 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$64K 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$83K 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$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 · 2021$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 · 2022$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 · 2023$311K 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$311K 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$311K 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$311K 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$302K 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 · 2007Deed / sale $19KA 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 · 2007Deed / sale $50KA 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 · 2007-08-07New 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 · 2007-08-07AlterationThis 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 · 2007-08-07PlumbingThis 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 · 2007-12-03ElectricalThis 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 · 2008-12-02MechanicalThis 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 · 2016-04-12PlumbingThis 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 · 2017-10-10EXTINGUISHERS REQRD (SPECIFY)A 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 · 2017-10-10FIRE ALARM TESTED/CERTIFIEDA 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 · 2017-10-10HCEU 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 · 2008-10-23PERMB- 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 · 2019-01-19HCEU 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 · 2003-11-22RentalA 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 · 2007-10-24RentalA 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 · 2022-03-24Fire 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 · 2025-04-24Fire 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 assessmentBlock median & rangeZIP 19121 medianAssessmentDeed / 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 record17 events · exact dates, newest first
- CertificationFire Alarm Certification
- CertificationFire Alarm Certification
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- L&I violationEXTINGUISHERS REQRD (SPECIFY)
- L&I violationFIRE ALARM TESTED/CERTIFIED
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- PermitPlumbing
- PermitMechanical
- L&I violationPERMB- WK DONE W/O NOTIFY INSP
- PermitElectrical
- LicenseRental
- PermitNew Construction
- PermitAlteration
- PermitPlumbing
- Deed / saleDeed / sale $19K
- Deed / saleDeed / sale $50K
- LicenseRental
The paper trail
New constructionBought for $19K in 2007, built new under a 2007 permit, sold for $50K in 2007.
- 2007 $19KSold$50KSoldNew ConstructionPermitAlterationPermitPlumbingPermitElectricalPermit
- 2008 L&I violationL&IMechanicalPermit
- 2016 PlumbingPermit
- 2017 2 L&I violationsL&IInspection failedL&I visit
- 2019 Inspection passedL&I visit
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 17 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- CertificationFire Alarm Certification
Certification BC-2026-001534 · Certified
Expires 2026-04-24
- CertificationFire Alarm Certification
Certification BC-2023-005039 · Certified
Expires 2023-03-24
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 607767 · 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.
- ViolationEXTINGUISHERS REQRD (SPECIFY)
Case 607767 · Violation 4476706 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationFIRE ALARM TESTED/CERTIFIED
Case 607767 · Violation 4476707 · 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 607767 · 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.
- PermitPlumbing
Permit 683528 · COMPLETED
INSTALL CURB TRAP CAST IRON AND FAI PA20160962753 (SFD)SELF CERTIFICATION'S ARE NO LONGER PERMITTED","ALL EXCAVATIONS AND PLUMBING TRENCHES IN EXCESS OF 5 FT IN DEPTH MUST HAVE APPROVED SHORING IN PLACE AT THE TIME OF INSPECTION"
- PermitMechanical
Permit 190731 · COMPLETED
INSTALL 3 GIBSON HVAC UNITS; 3-FAMILY DWELLING
- ViolationPERMB- WK DONE W/O NOTIFY INSP
Case 94583 · Violation 1172982 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- PermitElectrical
Permit 110044 · COMPLETED
INSTALLATION OF 1 CONTROL PANEL AND 2 MANUAL PULL STATIONS, 5 SMOKE, 1 HORN/STROBE, 4 HORNES AS PER NFPA72(NORTH DIST)
- LicenseRental
License 427052 · Active
DO 2 WIN RE GROUP LLC · Expires 2027-02-28
- PermitNew Construction
Permit 94625 · Expired
RE-LOCATE 12 OUTLETS, 5 SWITCHES. (NORTH DIST) RE-LOCATE 12 OUTLETS, 5 SWITCHES. (NORTH DIST)
- PermitAlteration
Permit 94583 · COMPLETED
GENERAL REHAB OF THREE FAMILY DWELLING:APPLY SHEETROCK TO EXISTING PLASTER, INSTALL NEW CABINETRY,REPLACE SUB-FLOORING,RECOVER ROOF, INSTALL NEW WINDOWS(25-SAME SIZE AND LOCATION), INSTALL INTERIOR DOORS.
- PermitPlumbing
Permit 94674 · COMPLETED
REPLACE STACK, REPLACE 30' DRAIN PIPE IN THE BASEMENT, INSTALL BATH FXTS (3) 3 PIECE (3 WC, 3 LAVS, 3 TUBS) 3 KS, 3 HWH
- Recorded transfer$19K transfer
2007
- Recorded transfer$50K transfer
2007
- LicenseRental
License 261031 · Inactive
POWELL JOSEPH_& MILDRED · Expires 2004-02-29
What this record suggests
The City file documents 6 permits touching bathroom work, electrical work, plumbing, roof work. 5 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
Flags: active rental license. 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
2,745 sqft
livable area
Lot
1,485 sqft
Exterior condition
Above average
city code 3
Above averageBelow average
Interior condition
Average
city code 4
Above averageBelow average
Quality grade
C+
assessor's grade
ABCDE
Zoning
RM1
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 3127 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 3 licensed units × ~85% of the area's median unit rent — the whole building's income, not one unit's. Assessed value is not an asking price — set the price slider to the real one.
When this house last sold (2007) a 30-year mortgage ran about 6.34% — Freddie Mac's average that year.
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, $2,100/yr insurance, 1% of price/yr maintenance; taxes use this parcel's taxable assessment, not a live Tax Center balance.
Block context
3127 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: 3125 Diamond St · 3129 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)