2026 taxable assessment $528,000 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $506,300; it is not the 2026 billed-year value.
Multi-family report
1824 Diamond St
11 bd · 7 ba · 3 stories · 3,930 sqft · RM1 · built 2011
Absentee individual · assessed $528K (2026) · 2027 OPA assessment $506K · 3 licensed units · sold 3×. On the 1800 block of Diamond St.
Property summary
Assessment$528,0002026 OPA assessment · 2027: $506,300
Last sale$560KRecorded 2018
Est. tax bill$7,391/year2026 taxable assessment × 1.3998%
Tax delinquencyNo 2022 matchNot proof account is current
Permits9Every fetched City permit
Violations0 open1 historical across 1 case
“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 3211793012026 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 $535K in 2015, built new under a 2011 permit, sold for $560K in 2018.
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
- Yun Qi
- Tax mailing address
- 87 LYNFORD RD, RICHBORO PA, 18954
- L&I district
- NORTH
- Building ID (BIN)
- 1002506
- OPA account
- 321179301
Permits9Every dated permit
Violation cases11 violation record · 0 open
Investigations31 failed · 2 passed · 0 closed
Building certifications1Latest result: Certified
Business licenses31 active
Appeals1CLOSED · Granted
PermitsPermit number, issued date, work and City status9
Zoning/usePermit 296969
Mar 4, 2011 COMPLETED Completed Mar 4, 2011
ERECTION OF A 3 STORY STRUCTURE WITH CELLAR FOR USE AS A TRIPLEX
New constructionPermit 329848
Apr 29, 2011 COMPLETED Completed Dec 6, 2011
ERECT A NEW 3 STORY TRIPLEX WITH CELLAR AS PER PLANS.
PlumbingPermit 342026
May 19, 2011 COMPLETED Completed Nov 30, 2011
INSTALL CURB TRAP AND MAIN DRAIN STACK AND DRAIN LINE, SET FIXTURES: 7 WATER CLOSETS, 7 BATHTUBS, 3 KITCHEN SINKS, 7 LAV SINKS, 1 YARD DRAIN AND 1 WATER DISTRIBUTION PIPE
ElectricalPermit 346843
Jul 11, 2011 COMPLETED Completed Jun 6, 2012
ELECTRIC: 300 AMP SERVICE, (3) 100 AMP SUB PANELS, (1) 100 AMP HOUSE PANEL, FIRE ALARM, EMERGENCY EXIT SIGNS, PHONE/CABLE AS PER 2008 NEC/NFPA-72
MechanicalPermit 358553
Aug 26, 2011 COMPLETED Completed Dec 6, 2011
INSTALL (3) AIR-CONDENSERS=(1)2 1/2 TONS,(1) 3TONS,(1) 3 1/2 TONS..(3) GAS FURNACE (1) 90,000 BTU'S,(2)70,000 BTU'S INCLUDING ALL NECESSARY DUCTWORK.TRIPLEX.
AdministrativePermit 361445
Sep 2, 2011 COMPLETED Completed Sep 21, 2011
AMEND AP #361445 TO REVISE ROOF/CEILING ASSEMBLY DETAIL.
SuppressionPermit 357464
Oct 19, 2011 COMPLETED Completed Dec 6, 2011
INSTALLATION OF FIRE SPRINKLER SYSTEM WITH 2" FEED MAIN FOR THREE FAMILY DWELLING.
AdministrativePermit 366413
Oct 24, 2011 COMPLETED Completed Dec 6, 2011
TEMP CERT OF OCCUPANCY
AlterationsPermit PP-2023-013367
Sep 26, 2023 Expired Completed Feb 8, 2025
Install Backflow preventer only.
Violation cases1 individual violation record; resolved history remains visible1
Case 282131CLOSED
CONSTRUCTION SERVICES · Opened Jun 15, 2011 · completed Aug 30, 2011
- DEBRIS REMOVE - CONSTRViolation 2148192Jun 13, 2011 COMPLIED
InvestigationsEvery inspector visit, including CLOSED outcomes3
BP_BLDGCase 282131
Jun 13, 2011 FAILED
BP_BLDGCase 282131
Jul 18, 2011 PASSED
BP_BLDGCase 282131
Aug 22, 2011 PASSED
Building certificationsInspection result and filed expiration date by L&I building ID1
Fire Alarm CertificationCertification BC-2024-016211
Inspected May 1, 2024 Certified Expires May 1, 2025
Business licensesHistorical and active licenses are both retained3
RentalLicense 229080
PHILA CITY OF
Revenue code 3202 · First issued Jul 11, 2002 Inactive Expiration Feb 28, 2003 Inactive Dec 22, 2012
RentalLicense 558509
POWER HOUSE DEVELOPMENT INC
Revenue code 3202 · First issued Mar 21, 2012 Closed Expiration Feb 29, 2020
RentalLicense 768819
YUN QI
Revenue code 3202 · First issued Mar 9, 2018 Active Expiration Mar 8, 2027
AppealsApplication status and decision are separate City fields1
Zoning board appealAppeal 13288
Feb 22, 2011 CLOSED Granted Related permit 296969
PERMIT FOR THE ERECTION OF A THREE(3) STORY ATTACHED STRUCTURE WITH CELLAR (NTE 35') FOR USE AS A THREE FAMILY DWELLING.
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
4 verify
1 favorable dated record
Resolve before relyingZoning approval is not the occupancy fileAppeal #13288: CLOSED · Granted; related permit 296969. Use permit #296969: 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: PP-2023-013367 (Expired). At least one row also carries a completion date, so the City fields conflict.
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 May 1, 2025
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 (87 LYNFORD RD, RICHBORO PA, 18954).
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 ↗VerifyFailed inspections are dated events—not the current condition1 failed, 2 passed, and 0 CLOSED investigation outcomes are in the fetched history; the latest dated visit was PASSED on Aug 22, 2011.
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 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 ↗Favorable dated recordNo open violation; closed history remains relevantThe fetched record shows 0 open and 1 historical violation across 1 case.
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.
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.
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 the landlord
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: 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
$528,000
2026 billed-year assessment · 2027: $506,300 · built 2011
Price / sq ft
$129
block $128 · in line w/ block
Appreciation
+6%
+1%/yr, city 6.5%
In 5 years (~2031)
~$506K
+1%/yr own pace held 5 yrs — extrapolation, not a forecast
Est. tax bill / yr
$7,391
1.46% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Gross yield
—
Times sold
3
licensed rental
Value vs. the block, over time — sales, permits & L&I events marked on the line
This houseBlock median & rangeSalePermit
The paper trail
New constructionBought for $535K in 2015, built new under a 2011 permit, sold for $560K in 2018.
- 2011 New constructionPermitPlumbingPermitL&I violationL&IElectricalPermitL&I: 1 failed, 2 passedL&I visitMechanicalPermitAdministrativePermitSuppressionPermitAdministrativePermit
- 2015 $535KSold
- 2018 $560KSold
- 2023 AlterationsPermit
Flags: active rental license · 1 zoning/board appeal 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.
Bedrooms
11
Bathrooms
7
Stories
3
Interior
3,930 sqft
livable area
Lot
1,679 sqft
Basement
Full
city code D
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
Above average
city code 3
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
Zoning appeals
1
CLOSED · Granted · 2011
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 1824 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 (2018) a 30-year mortgage ran about 4.54% — 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
1824 Diamond St sits on the 1800 block of Diamond St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 1822 Diamond St · 1826 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, 1:41 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)