2026 assessment
$10M
OPA value, not a listing price
Industrial property report
777 Mayfair St
100,820 sqftCMX3built 2005
Property at a glanceIndustrial
Cubesmart LP
2027 published assessment
$11M
Future roll, not the current tax bill
Location
700 block of Mayfair St
ZIP 19124
Neighborhood area
Frankford · Juniata
Approximate · based on ZIP 19124
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 $11,090,200. It is not yet the billed-year tax basis.
- OPA assessment · 2016$4.0M 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$4.0M 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$8.3M 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$8.3M 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$8.4M 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$8.4M 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$8.4M 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$8.8M 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 ↗
- OPA assessment · 2024$8.8M 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 ↗
- OPA assessment · 2025$10M 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$10M 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$11M 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 · 2014Deed / sale $7.3MA 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 · 2018Deed / sale $2.6MA 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 · 2009-04-22Zoning/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 · 2009-11-04Zoning/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 · 2009-11-18Major alterationA broad legacy permit work category for a substantial building alteration. It can include changed layouts, partitions, fixtures, finishes, structural work, or occupancy-related work, but only the approved scope and plans say what this permit actually authorized; separate trade permits may be required.What Philadelphia building permits can cover ↗
- Permit · 2010-02-23ElectricalThis 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 · 2014-09-12Zoning/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 · 2014-10-14SignThis 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 · 2019-04-01AlterationThis 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 · 2019-05-07Major alterationA broad legacy permit work category for a substantial building alteration. It can include changed layouts, partitions, fixtures, finishes, structural work, or occupancy-related work, but only the approved scope and plans say what this permit actually authorized; separate trade permits may be required.What Philadelphia building permits can cover ↗
- Permit · 2019-05-07ElectricalThis 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 ↗
- L&I violation · 2022-05-28RUBBISH & GARBAGEA 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 · 2022-05-28L&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 ↗
- L&I violation · 2022-09-21PERIODIC TESTINGA 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 · 2022-09-21SUPPRESSION SYSTEM TESTING & MAINTENANCEA 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 · 2022-09-21FDC SIGNAGE REQUIREDA 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 · 2022-09-21L&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 ↗
- L&I violation · 2024-04-29SUPPRESSION SYSTEM TESTING & MAINTENANCEA 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 · 2024-04-29MANUAL FIRE ALARM BOX SIGNSA 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 · 2024-04-29PERIODIC TESTINGA 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 · 2022-06-13L&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 ↗
- Inspection · 2022-07-21L&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 ↗
- Inspection · 2022-10-31L&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 ↗
- Inspection · 2023-02-23L&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 ↗
- Inspection · 2023-11-21L&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 ↗
- Inspection · 2024-02-26L&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 ↗
- Inspection · 2024-04-30L&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 ↗
- Inspection · 2024-07-17L&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 · 2009-04-13HOWARD HORST (HORST SIGNS): 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 · 2010-03-31HOWARD HORST (HORST SIGNS): Outdoor Advertising Sign L&I license filing marked inactiveA 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 · 2022-09-09Fire 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 · 2024-03-16Fire 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 · 2024-04-25Sprinkler 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 · 2025-03-03Fire 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 assessmentAssessmentDeed / saleL&I violationPermitInspectionLicenseCertification
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 record34 events · exact dates, newest first
- CertificationFire Alarm Certification
- InspectionL&I investigation
- InspectionL&I investigation
- L&I violationSUPPRESSION SYSTEM TESTING & MAINTENANCE
- L&I violationMANUAL FIRE ALARM BOX SIGNS
- L&I violationPERIODIC TESTING
- CertificationSprinkler Certification
- CertificationFire Alarm Certification
- InspectionL&I investigation
- InspectionL&I investigation
- InspectionL&I investigation
- InspectionL&I investigation
- L&I violationPERIODIC TESTING
- L&I violationSUPPRESSION SYSTEM TESTING & MAINTENANCE
- L&I violationFDC SIGNAGE REQUIRED
- InspectionL&I investigation
- CertificationFire Alarm Certification
- InspectionL&I investigation
- InspectionL&I investigation
- L&I violationRUBBISH & GARBAGE
- InspectionL&I investigation
- PermitMajor alteration
- PermitElectrical
- PermitAlteration
- Deed / saleDeed / sale $2.6M
- PermitSign
- PermitZoning/use
- Deed / saleDeed / sale $7.3M
- LicenseHOWARD HORST (HORST SIGNS): Outdoor Advertising Sign L&I license filing marked inactive
- PermitElectrical
- PermitMajor alteration
- PermitZoning/use
- PermitZoning/use
- LicenseHOWARD HORST (HORST SIGNS): Outdoor Advertising Sign L&I license filing initially issued
Verify the public record
Property tax
$141,128/year estimated property tax
2026 taxable assessment $10,082,000 × 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 $11,090,200. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 8841196002026 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.”
Property report
Industrial property
Industrial, recorded in the City's industrial category. The public record and owner trail follow.
6 open violations
What it is
Industrial
Ind Bldg Mini Whse Mas+O
Owner
Cubesmart LP
$ / sq ft
$110
above the $70 median for 3,574 industrial parcels citywide
Interior area
100,820 sqft
Lot size
35,500 sqft
Built
2005
Zoning
CMX3
Recorded owner
Who's behind it
Cubesmart LP · corporate / LLC owner
• Tax bills mail to Po Box 320099, Alexandria VA, 22320 — outside Philadelphia
Block context
700 block of Mayfair St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 746 Mayfair St · 744 Mayfair St
L&I license dates · data through Jul 27, 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 27, 2026.
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 34 dated rows
- CertificationFire Alarm Certification
Certification BC-2025-030104 · Certified
Expires 2026-03-03
- InvestigationL&I investigation
Case CF-2024-037743 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationL&I investigation
Case CF-2024-037743 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationSUPPRESSION SYSTEM TESTING & MAINTENANCE
Case CF-2024-037743 · Violation VI-2024-030601 · Code F-903.5 · OPEN
- ViolationMANUAL FIRE ALARM BOX SIGNS
Case CF-2024-037743 · Violation VI-2024-030622 · Code F-907.4.2.4 · OPEN
- ViolationPERIODIC TESTING
Case CF-2024-037743 · Violation VI-2024-030600 · Code F-901.6.4 · OPEN
- CertificationSprinkler Certification
Certification BC-2024-011700 · Deficient
- CertificationFire Alarm Certification
Certification BC-2024-011400 · Certified
Expires 2025-03-16
- InvestigationL&I investigation
Case CF-2022-098020 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationL&I investigation
Case CF-2022-098020 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationL&I investigation
Case CF-2022-098020 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationL&I investigation
Case CF-2022-098020 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationPERIODIC TESTING
Case CF-2022-098020 · Violation VI-2022-071857 · Code F-901.6.4 · OPEN
- ViolationSUPPRESSION SYSTEM TESTING & MAINTENANCE
Case CF-2022-098020 · Violation VI-2022-071858 · Code F-903.5 · OPEN
- ViolationFDC SIGNAGE REQUIRED
Case CF-2022-098020 · Violation VI-2022-071859 · Code F-912.5 · OPEN
- InvestigationL&I investigation
Case CF-2022-098020 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- CertificationFire Alarm Certification
Certification BC-2022-012462 · Deficient
- InvestigationL&I investigation
Case CF-2022-050624 · PASSED
The cited inspection visit was marked passed.
- InvestigationL&I investigation
Case CF-2022-050624 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationRUBBISH & GARBAGE
Case CF-2022-050624 · Violation VI-2022-037620 · Code PM15-308.1 · COMPLIED
Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationL&I investigation
Case CF-2022-050624 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitMajor alteration
Permit 956853 · COMPLETED
FOR THE INSTALLATION OF 272 SOLAR MODULES ON AN EXISTING STRUCTURE AS PER PLANS. SEPARATE PERMIT REQUIRED FOR ELECTRIC WORK.
- PermitElectrical
Permit 956859 · COMPLETED
RACKING & ELECTRICAL INSTALLATION PER SOLAR PV SYSTEM STANDARD & PER MANUFACTURERS INSTALLATION INSTRUCTIONS 99.28 KW DC SYSTEM CONSISTING OF (272) JINKO 365 PANELS, (2) 6KW CHINT POWER 3 PHASE INVERTERS ALL PV SYSTEM COMPONENTS LISTED FOR SOLAR PV APPLICATION PER NEW 690.9(B). INSTALLATION WILL COMPLY WITH 2009 IRC, 2009 IBC, & THE NEC 2008.
- PermitAlteration
Permit 962680 · COMPLETED
EZ PERMIT RE-ROOFING- FOR THE INSTALLATION OF NEW ROOF COVERINGS ON EXITING ROOFS AS PER ATTACHED STANDARD. DEVIATIONS FROM THESE STANDARDS REQUIRE SUBMISSION OF CONSTRUCTION AND SITE PLANS.
- Recorded transfer$2.6M transfer
2018
- PermitSign
Permit 561644 · COMPLETED
REMOVE EXISTING SIGN AND INSTALL ONE SET OF ILLUMINATE LETTERS ON RACEWAY ON 5TH FLOOR ELEVATION, CONNECT TO EXISTING ELECTRIC (SEPARATE ELECTRICAL PERMIT REQUIRED) RE-FACE THREE EXISTING SIGNS
- PermitZoning/use
Permit 558323 · COMPLETED
REMOVE EXISTING WALL SIGN AND REPLACE WITH A NEW ILLUMINATED FLATWALL SIGN
- Recorded transfer$7.3M transfer
2014
- License terminal eventHOWARD HORST (HORST SIGNS): Outdoor Advertising Sign L&I license filing marked inactive
License 470623 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- PermitElectrical
Permit 263526 · COMPLETED
INSTALL AND WIRE E-MON D-MON SUB METER, 50KVA STEP DOWN TRANSFORMER, 100A 480V FEEDER, 200A FUSED DISCONNECT, 24 CIRCUIT PANEL AND 40 AMP RADIO CABINET AS PER 2005 NEC.
- PermitMajor alteration
Permit 247619 · COMPLETED
ERECT (1) GPS ANTENNA, (1) EQUIPMENT CABINET AND ERECT (6) ANTENNAS
- PermitZoning/use
Permit 241047 · COMPLETED
ERECT (1) ANTENNA, (6) ANTENNAS AND INSTALL (3) ACCESSORY EQUIPMENT CABINETS
- PermitZoning/use
Permit 210032 · COMPLETED
REMOVE AND REPLACE EXISTING SIGN FACE AND REFACE EXISTING SIGNS.
- License issue eventHOWARD HORST (HORST SIGNS): Outdoor Advertising Sign L&I license filing initially issued
License 470623 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
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 28, 2026, 1:05 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)