2026 taxable assessment $450,000 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $459,600; it is not the 2026 billed-year value.
Multi-family report
1605 Diamond St
7 bd · 3 ba · 3 stories · 3,024 sqft · RM1 · built 1915
Investor / LLC · assessed $450K (2026) · 2027 OPA assessment $460K · sold 2×. On the 1600 block of Diamond St.
Property summary
Assessment$450,0002026 OPA assessment · 2027: $459,600
Last sale$130KRecorded 2007 · later nominal deed
Est. tax bill$6,299/year2026 taxable assessment × 1.3998%
Tax delinquencyNo 2022 matchNot proof account is current
Permits1Every fetched City permit
Violations2 open14 historical across 7 cases
“Open” reflects records available then historical records keep their source dates estimates are labeled
BlockReport AI · cited public records
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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 3210427002026 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 recordImproved
Why it mattersBought for $10K in 2007. Owner pulled a zoning/use permit in 2020.
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
- Sophisticated Investments
- Tax mailing address
- PO BOX 56092, PHILADELPHIA PA, 19130
- L&I district
- NORTH
- Building ID (BIN)
- —
- OPA account
- 321042700
Permits1Every dated permit
Violation cases714 violation records · 1 open
Investigations3121 failed · 4 passed · 6 closed
Building certifications0No match
Business licenses10 active
Appeals0No match
PermitsPermit number, issued date, work and City status1
Zoning/usePermit 1019748
Feb 27, 2020 COMPLETED Completed Feb 27, 2020
FOR THE DEMOLITION OF ENTIRE BUILDING ON SITE BESIDES EXISTING FACADE, AND FOR THE ERECTION OF AN ATTACHED STRUCTURE. SIZE AND LOCATION AS SHOWN IN APPLICATION / PLAN. FOR USE AS MULTI-FAMILY HOUSEHOLD LIVING (THREE (3) DWELLING UNITS).
Violation cases14 individual violation records; resolved history remains visible7
Case 107785CLOSED
Opened Apr 5, 2007
- ARCHITECT/ENGINEER SERVICESViolation 1288074Apr 4, 2007 COMPLIED
- WALL PARTIALLY COLLAPSEDViolation 1288075Apr 4, 2007 COMPLIED
- VACANT BLDG UNSEC/UNSAFE CSUViolation 1288076Apr 4, 2007 COMPLIED
Case 123402CLOSED
CONSTRUCTION SERVICES · Opened Aug 8, 2007
- PERMP- ALTER/REPAIR/REPL PLUMBViolation 3457828Aug 8, 2007 CLOSEDCASE
- PERMB- ALTER REPAIR INT PARTViolation 3457827Aug 8, 2007 CLOSEDCASE
Case 123405CLOSED
CONSTRUCTION SERVICES · Opened Aug 8, 2007 · completed Apr 10, 2008
- PERMP- INST DOMEST PIPE SYSViolation 853858Aug 8, 2007 COMPLIED
Case 129992CLOSED
CONSTRUCTION SERVICES · Opened Oct 1, 2007
- PERMB- ALTER REP'R EXT PORTIONViolation 3457858Sep 28, 2007 CLOSEDCASE
- HIST DIST-WINDOWS, DOORS ETCViolation 3457859Sep 28, 2007 CLOSEDCASE
Case 171836CLOSED
CONSTRUCTION SERVICES · Opened Jul 29, 2008 · completed Feb 11, 2009
- PERMB- ALTER REP'R EXT PORTIONViolation 1235817May 12, 2008 COMPLIED
- HIST DIST-WINDOWS, DOORS ETCViolation 1235818May 12, 2008 COMPLIED
Case 190072CLOSED
CONSTRUCTION SERVICES · Opened Jan 22, 2009
- HIST DIST-WINDOWS, DOORS ETCViolation 3457855Jan 21, 2009 CLOSEDCASE
- PERMB- ALTER REP'R EXT PORTIONViolation 3457854Jan 21, 2009 CLOSEDCASE
Case CF-2026-044379IN VIOLATION
NOTICE OF VIOLATION · Opened Apr 30, 2026
- PERIODIC TESTING Violation VI-2026-027318May 1, 2026 OPEN
- RENTAL LICENSE MULTI FAMILY (R2)Violation VI-2026-027319May 1, 2026 OPEN
InvestigationsEvery inspector visit, including CLOSED outcomes31
CSUINITIALCase 107785
Apr 5, 2007 FAILED
PP_PLUMBCase 123402
Aug 8, 2007 FAILED
PP_PLUMBCase 123405
Aug 8, 2007 FAILED
PP_PLUMBCase 123405
Sep 11, 2007 FAILED
PP_PLUMBCase 123402
Sep 12, 2007 FAILED
BP_BLDGCase 129992
Sep 28, 2007 FAILED
PP_PLUMBCase 123402
Oct 17, 2007 CLOSED
PP_PLUMBCase 123405
Oct 24, 2007 PASSED
BP_BLDGCase 129992
Nov 2, 2007 FAILED
PP_PLUMBCase 123405
Jan 8, 2008 PASSED
BP_BLDGCase 129992
Jan 30, 2008 FAILED
PP_PLUMBCase 123405
Feb 27, 2008 PASSED
BP_BLDGCase 129992
Mar 5, 2008 CLOSED
PP_PLUMBCase 123405
Apr 9, 2008 PASSED
BP_BLDGCase 171836
May 12, 2008 FAILED
PRECOURTCase 129992
May 20, 2008 FAILED
BP_BLDGCase 171836
Sep 2, 2008 FAILED
BP_BLDGCase 171836
Oct 9, 2008 FAILED
BP_BLDGCase 171836
Nov 14, 2008 CLOSED
BP_BLDGCase 190072
Jan 21, 2009 FAILED
BP_BLDGCase 190072
Jan 28, 2009 FAILED
PRECOURTCase 171836
Feb 5, 2009 FAILED
PRECOURTCase 171836
Feb 11, 2009 CLOSED
BP_BLDGCase 190072
Mar 4, 2009 FAILED
CSUINITIALCase 107785
Apr 1, 2009 CLOSED
BP_BLDGCase 190072
Apr 8, 2009 CLOSED
PRECOURTCase 190072
Jun 3, 2009 FAILED
PRECOURTCase 123402
Jan 28, 2015 FAILED
PRECOURTCase 129992
Jan 28, 2015 FAILED
PRECOURTCase 190072
Jan 28, 2015 FAILED
L&I investigationCase CF-2026-044379
May 1, 2026 FAILED
Building certificationsInspection result and filed expiration date by L&I building ID0
No building certifications matched this parcel in the fetched City dataset.
Business licensesHistorical and active licenses are both retained1
RentalLicense 485865
SOPHISTICATED INVESTMENTS INC
Revenue code 3202 · First issued Oct 20, 2009 Inactive Expiration Feb 28, 2015 Inactive Apr 29, 2015
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.
2 resolve before relying
4 verify
Resolve before relyingZoning approval is not the occupancy fileUse permit #1019748: 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 relying2 open L&I violations14 violation rows are retained in the City ledger.
Why it mattersOpen notices can accrue fees, block permits or license renewal, and move to court or collection. Standard initial notices generally have a 30-day appeal window; unsafe or imminently-dangerous notices have a much shorter window.
Verify nextRead the notice—not only the summary status—and confirm reinspection, fees, and appeal posture with L&I.
Open the controlling City guidance ↗VerifyResidential form does not establish rental useOPA classifies the parcel as multi-family; no active Rental License row matched.
Why it mattersA multi-unit or mixed-use classification does not prove that space is currently rented. If dwelling space is rented, Philadelphia generally requires a current Rental License and related occupancy, tax, violation, and lead compliance.
Verify nextConfirm actual occupancy first; if any unit is rented, verify the license and legal unit count with L&I.
Open the controlling City guidance ↗VerifyFailed inspections are dated events—not the current condition21 failed, 4 passed, and 6 CLOSED investigation outcomes are in the fetched history; the latest dated visit was FAILED on May 1, 2026.
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 ↗VerifyThe latest nominal transfer is not a market sale—or a title opinionThe latest deed in the assembled record moved for nominal consideration.
Why it mattersA $1 or nominal deed can be a valid family, estate, or entity transfer. It does not establish a sale price, clear title, or by itself prove a tangled title.
Verify nextRead the recorded deed and have the title search confirm every grantor, grantee, estate/probate step, lien, and authority to sell.
Open the controlling City guidance ↗VerifyA separate Commercial Trash account may applyOPA classifies the parcel as multi-family. 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 ↗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.
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: 2 open L&I violations · failed L&I inspection activity in 2026
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 71% in 2023, but no matching permit appears in the property timeline.
Evidence: assessment moved from $315,800 to $540,000 · no permit shown in 2022-2024
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
2 open violations: the clock matters
Most L&I appeals must be filed within 30 days; unsafe or imminently dangerous orders can carry a shorter deadline. Unresolved notices can lead to fees, court enforcement, City abatement work, and liens. Read the dated notice and verify its current status with L&I.
If you’re the landlord
If it is rented, verify the Rental License
The fetched license records do not show an active Rental License. Ownership type or a tax mailing address does not prove that tenants occupy the property; if it is rented, verify the current license and legal occupancy in eCLIPSE.
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.
Who's behind it
Sophisticated Investments · corporate / LLC owner
• Owns 4 properties across Philadelphia under this name, assessed at $1.7M combined
• Tax bills mail to Po Box 56092, Philadelphia PA, 19130
The investment read
How this building 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
$450,000
2026 billed-year assessment · 2027: $459,600 · built 1915
Price / sq ft
$152
block $160 · in line w/ block
Appreciation
+66%
+5%/yr, city 6.5%
In 5 years (~2031)
~$461K
+5%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax bill / yr
$6,299
1.37% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Gross yield
—
Times sold
2
Value vs. the block, over time — sales, permits & L&I events marked on the line
This houseBlock median & rangeL&I violationPermit
The paper trail
ImprovedBought for $10K in 2007. Owner pulled a zoning/use permit in 2020.
- 2007 $10KSold$130KSold8 L&I violations incl VACANT BLDG UNSEC/UNSAFE CSUL&I
- 2008 2 L&I violationsL&IL&I: 5 failed, 3 passedL&I visit
- 2009 2 L&I violationsL&IInspection failed ×5L&I visit
- 2015 Inspection failed ×3L&I visit
- 2020 Zoning/usePermit
- 2026 2 L&I violationsL&IInspection failedL&I visit
Flags: 2 open L&I violations. 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.
Bedrooms
7
Bathrooms
3
Stories
3
Interior
3,024 sqft
livable area
Lot
1,800 sqft
Basement
Full
city code D
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
Above average
city code 3
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 1605 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
1605 Diamond St sits on the 1600 block of Diamond St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 1603 Diamond St · 1607 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, 1:39 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)