2026 assessment
$4.7M
OPA value, not a listing price
Apartment building report
1100 Ridge Ave
7 stories29,295 sqftCMX3built 2021
Property at a glanceApartments
900 Diamond Street LLC
2027 published assessment
$5.8M
Future roll, not the current tax bill
Location
1100 block of Ridge Ave
ZIP 19123
Neighborhood area
Northern Liberties · Callowhill
Approximate · based on ZIP 19123
Assessment and City record timeline
The line tracks this property’s published City assessment. Markers show deeds, permits, inspections, licenses, violations, certifications, and appeals on their recorded dates. Select one to read the filing.
Assessments are tax-roll values, not sale prices or appraisals. OPA has published a 2027 assessment of $5,763,100. It is not yet the billed-year tax basis.
- OPA assessment · 2021$599K 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$4.7M 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$4.7M 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$4.7M 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$4.7M 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$4.7M 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$5.8M 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 ↗
- Land buy · 2004Land record $150KA land-record event associated with this parcel. Review the recorded instrument to determine whether it reflects a conveyance, parcel change, or another filing.How to read the recorded document ↗
- Permit · 2020-06-30Combined Lot Line Relocation and New Dev…This 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 · 2020-07-14New construction, addition, GFA changeThis 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 · 2021-01-11New 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 · 2021-10-19New 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 · 2021-12-14New 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 · 2022-03-23New 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 · 2022-04-08New Construction or AdditionsThis 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 · 2023-02-15New 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 · 2026-05-29Change 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 ↗
- L&I violation · 2024-01-10WALKWAY NOT PROVIDEDA 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 · 2024-01-10L&I investigationA 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 · 2026-03-16900 Diamond Street LLC: 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 ↗
- License · 2005-01-12CLEAR CHANNEL OUTDOOR (MATT BRADLEY): Outdoor Advertising Sign L&I license filing 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 ↗
- License · 2007-03-31CLEAR CHANNEL OUTDOOR (MATT BRADLEY): Outdoor Advertising Sign L&I license filing marked closedA 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 ↗
Property assessmentAssessmentLand buyL&I violationPermitInspectionLicense
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
- PermitChange of Use
- License900 Diamond Street LLC: Rental landlord or residential registration initially issued
- L&I violationWALKWAY NOT PROVIDED
- InspectionL&I investigation
- PermitNew Construction
- PermitNew Construction or Additions
- PermitNew Construction
- PermitNew Construction
- PermitNew Construction
- PermitNew Construction
- PermitNew construction, addition, GFA change
- PermitCombined Lot Line Relocation and New Dev…
- LicenseCLEAR CHANNEL OUTDOOR (MATT BRADLEY): Outdoor Advertising Sign L&I license filing marked closed
- LicenseCLEAR CHANNEL OUTDOOR (MATT BRADLEY): Outdoor Advertising Sign L&I license filing initially issued
- Land buyLand record $150K
Verify the public record
Property tax
$65,838/year estimated property tax
2026 taxable assessment $4,703,400 × 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 $5,763,100. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 8815194562026 taxable assessment equals the full assessed value.
Historical delinquency sources Record found
$11,902.61 was recorded for this parcel in Philadelphia's June 2022 delinquency snapshot for 2021. That amount may have been paid, reduced, or increased since; it is not a current payoff figure.
$9,644.13 principal$506.32 interest$578.65 penalty$1,173.51 other charges
The snapshot’s 2022 context used $4,703,400 total assessment, $1,124,975 taxable, and $3,578,425 exempt/abated. Those historical fields can differ from today’s OPA exemption status.
For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”
Building report
Apartment building
Apartments, recorded in the City's apartments category. The public record and owner trail follow.
$12K · Jun 2022 delinquency snapshot
What it is
Apartments
Pkg Lot Non Commercial
Owner
900 Diamond Street LLC
$ / sq ft
$197
above the $147 median for 2,826 apartments parcels citywide
Corridor
Callowhill East
city commercial corridor
Licensed units
30
active rental license
Interior area
29,295 sqft
Stories
7
Built
2021
Zoning
CMX3
Recorded owner
Who's behind it
900 Diamond Street LLC · corporate / LLC owner
• Tax bills mail to 1100 Ridge Ave, Philadelphia PA, 19123
• Holds an active rental license for this address
Block context
1100 block of Ridge Ave. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1110 Ridge Ave · 1101-03 Ridge Ave
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.
900 Diamond Street LLCActive
Rental · Initial issue date Mar 16, 2026 · Filed expiration Mar 15, 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
- PermitChange of Use
Permit ZP-2026-005837 · Issued
Visitor Accommodations
- License issue event900 Diamond Street LLC: Rental landlord or residential registration initially issued
License 1002150 · Active
License event. Registration does not prove present operation or storefront occupancy.
- ViolationWALKWAY NOT PROVIDED
Case CF-2024-002650 · Violation VI-2024-002323 · Code B-3306.2 · SVN ISSUED
Resolution: SVN ISSUED
- InvestigationL&I investigation
Case CF-2024-002650
- PermitNew Construction
Permit EP-2021-008864 · Completed
New Construction with 1600 AMP 120/208V Electrical Service. Install wiring and devices for lighting, hvac, cooking, general recepticles, and communications as per 2017 NEC. Install fire alarm as per 2016 NFPA 72.
- PermitNew Construction or Additions
Permit PP-2021-014507 · Completed
New Construction mixed use building with parking in the basement, commercial on the first floor and thirty (30) dwelling units above.
- PermitNew Construction
Permit MP-2022-001122 · Completed
FOR THE INSTALLATION OF A NEW HVAC SYSTEM INCLUDING REGISTERS AND DIFFUSERS WITH ASSOCIATED APPLIANCES AND DUCTWORK AS PER PLANS.
- PermitNew Construction
Permit FP-2021-003373 · Completed
INSTALL NEW FIRE SUPPRESSION SYSTEM COMPLYING WITH NFPA 13 THROUGHOUT AN EXISTING STRUCTURE. INSTALLATION TO INCLUDE 4" MAIN FIRE SERVICE LINE AND 4." DC AMES 2000SS BACKFLOW PREVENTION ASSEMBLY. INSTALLATION ALSO TO INCLUDE THE INSTALLATION OF A STANDPIPE SYSTEM AS PER NFPA 14 AS PER APPROVED PLANS. ALL WORK SHALL BE PERFORMED BY A FIRE SUPPRESSION CONTRACTOR LICENSED BY THE CITY OF PHILADELPHIA
- PermitNew Construction
Permit MP-2021-005233 · Completed
FOR A MECHANICAL INSTALLATION TO AN EXISTING STRUCTURE. WORK TO BE PERFORMED PER APPROVED PLANS.
- PermitNew Construction
Permit CP-2020-006311 · Completed
For the erection of a seven (7) story structure (Type IA construction from basement 2nd floor and IIIA construction for 3rd-7th floor) with a common roof deck at the 6th floor level. For use as 30 dwelling units and a vacant commercial space (U&O and CO required prior to occupancy) with accessory parking. Separate permit required for MEP and fire suppression work.
- PermitNew construction, addition, GFA change
Permit ZP-2020-003320 · Completed
FOR THE ERECTION OF AN ATTACHED BUILDING WITH A ROOF DECK AT SIXTH FLOOR AND TWO ROOF DECKS AT SEVENTH FLOOR (SIZE AND LOCATION AS SHOWN ON PLANS)
- PermitCombined Lot Line Relocation and New Dev…
Permit ZP-2020-001115 · Issued
FOR THE RELOCATION OF LOT LINES TO CREATE ONE LOT (PARCEL A) FROM FOUR (4) EXISTING LOTS (1100-02 RIDGE AVE, 1104 RIDGE AVE, 1106 RIDGE AVE AND 1108 RIDGE AVE) (SIZE AND LOCATION AS SHOWN ON PLANS)
- License terminal eventCLEAR CHANNEL OUTDOOR (MATT BRADLEY): Outdoor Advertising Sign L&I license filing marked closed
License 300021 · Closed
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventCLEAR CHANNEL OUTDOOR (MATT BRADLEY): Outdoor Advertising Sign L&I license filing initially issued
License 300021 · Closed
License event. Registration does not prove present operation or storefront occupancy.
- Land recordLand record
2004
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
- Imagery: Street photo © Google · Aerial © Esri, Maxar
Methodology & freshness
This report was assembled Jul 23, 2026, 7:24 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)