2026 assessment
$474K
OPA value, not a listing price
Multi-family report
1910 Diamond St
9 bd3 ba3 stories2,514 sqftRM1built 1915
Property at a glanceMulti-family
Entity-held
ZIP 19121 area
Brewerytown · Sharswood
1900 block of Diamond St
Assessment and City record timeline
Published City assessments for this building against its block and ZIP. Dated City filings are marked on the same line. Select one to read it. Assessments are tax-roll values, not sale prices or appraisals.
- OPA assessment · 2016$80K 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$100K 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$100K 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$126K 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$131K 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$131K 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$131K 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$186K 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$186K 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$474K 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$474K 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$521K 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 · 2021Deed / sale $450KA 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 · 2021-02-19Interior Non-Load-Bearing Wall Demo.This 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 · 2021-03-17Change of UseThis permit category usually covers the property’s allowed use, dimensions, occupancy, or site configuration. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2021-04-06Addition and/or AlterationThis 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 · 2021-08-16New 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 · 2021-12-01Addition and/or AlterationsThis 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 · 2021-12-25Addition and/or AlterationThis 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 · 2022-01-06AlterationsThis 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 ↗
- Inspection · 2006-07-14CI INSPA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2006-07-14CI INSPA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2006-08-31CI INSPA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2006-08-31CI INSPA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2010-11-10CI INSPA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- License · 2023-06-08OneKey Homes PHL: Rental landlord or residential registration initially issuedA 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 · 2026-07-17Fire 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 (Brewerytown · Sharswood) medianAssessmentDeed / salePermitInspectionLicenseCertification
Scroll horizontally to move through the years. 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 record15 events · exact dates, newest first
- CertificationFire Alarm Certification
- LicenseOneKey Homes PHL: Rental landlord or residential registration initially issued
- PermitAlterations
- PermitAddition and/or Alteration
- PermitAddition and/or Alterations
- PermitNew Construction
- PermitAddition and/or Alteration
- PermitChange of Use
- PermitInterior Non-Load-Bearing Wall Demo.
- Deed / saleDeed / sale $450K
- InspectionCI INSP
- InspectionCI INSP
- InspectionCI INSP
- InspectionCI INSP
- InspectionCI INSP
Flags: active rental license · historical tax ledger through 2016 recorded $1K with a lien entry. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$6,634/year estimated property tax
2026 taxable assessment $473,900 × 1.3998%. This is an estimate, not a bill or account balance. The City maintains payments, credits, interest, and the current amount due.
OPA has published a 2027 assessment of $521,300. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 3211806052026 taxable assessment equals the full assessed value.
Historical delinquency sources Record found
This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.
A separate historical parcel ledger ending in 2016 records $1,491.12 and a lien entry. It is shown as historical context only.
2016$1,491.12 total · $1,287.82 principal · $19.32 interest · $12.88 penalty
For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”
The property, on paper
OPA physical field record.
Bedrooms
9
Bathrooms
3
Stories
3
Interior
2,514 sqft
livable area
Lot
1,692 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
New / rehabbed
city code 2
New / rehabbed
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.
Recorded owner
Who's behind it
Onekeyhoes Phl LLC · corporate / LLC owner
• Owns 3 properties across Philadelphia under this name, assessed at $1.5M combined
• Tax bills mail to 541 Oriole La, Villanova PA, 19085 — outside Philadelphia
• Holds an active rental license for this address
Block context
1900 block of Diamond St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1908 Diamond St · 1912 Diamond St
L&I license dates · data through Jul 23, 2026
Business licenses at this address Latest pull
What L&I has registered at this OPA parcel, newest initial license date first.
No L&I business license is on record at this address in data through Jul 23, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
OneKey Homes PHLActive
Rental · Initial issue date Jun 8, 2023 · Filed expiration Jun 7, 2027
A license is an L&I registration, not proof that a business is open, operating today, or located at this storefront. Dates are license dates. Events are deduped by parcel, business identity, and license type, so a renewal is not shown as another opening. Other permit and filing types remain in the full source ledger.
Open every source row 15 dated rows
- CertificationFire Alarm Certification
Certification BC-2026-020521 · Certified
Expires 2027-07-17
- License issue eventOneKey Homes PHL: Rental landlord or residential registration initially issued
License 925833 · Active
License event. Registration does not prove present operation or storefront occupancy.
- PermitAlterations
Permit PP-2021-021447 · Completed
Alterations: Interior plumbing. All proposed work to be done in accordance with Philadelphia Plumbing Code 2018.
- PermitAddition and/or Alteration
Permit EP-2021-014245 · Completed
Install 300 amp electrical service with 4 meters. Wire throughout a 3 family dwelling ; 150A main for 2nd & 3rd fl tenant w/ 125 MCB panels in units. switches, lights, receptacles, tv's, phones ,emergency lights and 11oV smoke/co alarms .Install complete fire alarm system w/ low frequency sound in all sleeping areas (living rms and bedrooms) tamper switch & flow switch. ALL WORK IS TO BE DONE ACCORDING TO APPROVED DRAWINGS-2017 NEC,2016 NFPA-72,2018 PHILA FIRE CODE.
- PermitAddition and/or Alterations
Permit MP-2021-007560 · Completed
EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES - For the installation of New Ductwork, Registers/Grilles/Diffusers, and Warm-Air Appliances as per attached standards. Deviations from these standards require submission of construction and site plans. EACH HVAC UNIT TO BE SELF-CONTAINED WITHIN EACH DWELLING UNIT. NO PENETRATIONS OF RATED ASSEMBLIES. (Supply and install trunk duct independent in each apartment along the ceiling to outlet assemblies along ceiling in ceiling. Supply and install 60,000 BTU 95% furnace with a 1 (1.5) ton coil and condenser on first floor. Supply and install 60,000 BTU 95% furnace with a 1 (1.5) coil and condenser on the 2nd Floor. Supply and install 60,000 BTU 95% furnace with a 1 (1.5) ton coil and condenser on 3rd floor. The location of the outdoor units is in the breezeway. (There will be 18 registers throughout.)
- PermitNew Construction
Permit FP-2021-002013 · Completed
INSTALL NEW FIRE SUPPRESSION SYSTEM COMPLYING WITH NFPA 13R THROUGHOUT AN EXISTING STRUCTURE TO INCLUDE 2 " MAIN FIRE SERVICE LINE AND 2" DC WILKINS 350XL BACKFLOW PREVENTION ASSEMBLY AS PER APPROVED PLANS. ALL WORK SHALL BE PERFORMED BY A FIRE SUPPRESSION CONTRACTOR LICENSED BY THE CITY OF PHILADELPHIA.
- PermitAddition and/or Alteration
Permit CP-2021-001369 · Completed
FOR CHANGE OF OCCUPANCY TO R-2 AND LEVEL III ALTERATIONS TO INLCUDE STRUCTURAL WORK, STAIRS, NEW PARTITIONS, FIXTURES, FURNISHINGS, FINISHES, AS PER APPROVED PLANS. BUILDING SHALL BE FULLY SPRINKLERED PER NFPA 13R MINIMUM. SEPARATE PERMITS REQUIRED FOR MEP AND FIRE SUPPRESSION WORK.
- PermitChange of Use
Permit ZP-2021-002411 · Completed
Residential - Household Living - Multi-Family
- PermitInterior Non-Load-Bearing Wall Demo.
Permit GM-2021-001128 · Completed
EZ INTERIOR DEMOLITION- For the interior demolition on non-bearing partition wall and ceilings as per attached standard. Deviations from these standards require submission of construction and site plans. Department of Streets is required for any sidewalk and street closures. All means of pedestrian protection required at the site in accordance with the Philadelphia Building Code Chapter 33 shall be in place prior to start of work. *For the interior demolition of non-bearing partition walls and ceiling in accordance with the attached EZ Permit Interior Demolition Standard. Failure to comply with the attached EZ Permit Interior Demolition Standard shall result in revocation of this permit. No exterior work permitted as part of this permit as per PHC.*
- Recorded transfer$450K transfer
2021
- InvestigationCI INSP
Case 71554 · PASSED
The cited inspection visit was marked passed.
- InvestigationCI INSP
Case 71644 · PASSED
The cited inspection visit was marked passed.
- InvestigationCI INSP
Case 71554 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationCI INSP
Case 71554 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationCI INSP
Case 71644 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
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 23, 2026, 4:55 PM 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)