2026 assessment
$441K
OPA value, not a listing price
Property report
510 Martin St
3 stories5,412 sqftCMX2.5built 2014
Property at a glanceApartment building
Ridge Holdings LLC
2027 published assessment
$622K
Future roll, not the current tax bill
Location
500 block of Martin St
ZIP 19128
Neighborhood area
Roxborough
Approximate · based on ZIP 19128
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 $621,500. It is not yet the billed-year tax basis.
- OPA assessment · 2016$471K 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$471K 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$399K 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$410K 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$411K 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$411K 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$411K 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$490K 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$490K 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$441K 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$441K 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$622K 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 ↗
- Permit · 2013-11-13Zoning/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 · 2014-03-20New 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 · 2014-05-16PlumbingThis permit category usually covers water, drainage, fixtures, or other plumbing 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 · 2014-06-13MechanicalThis 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 · 2014-07-21ElectricalThis 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 · 2014-09-12SuppressionThis permit category usually covers fire-suppression systems or related life-safety work. 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 · 2019-11-04CLIP VIOLATION NOTICEA 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 · 2019-11-04LICENSE - RENTAL PROPERTYA 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 · 2014-06-07PERM - MUST POSTA 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 · 2014-06-07WORKMANLIKE- BUILDING CODEA 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 · 2014-06-07PERM - MUST POSTA 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 ↗
- License · 2019-12-20Ridge Holdings 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 ↗
- Certification · 2023-02-16Sprinkler 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 · 2024-02-13Sprinkler 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 · 2024-02-16Fire 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 · 2025-01-28Fire 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 · 2026-02-10Fire 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 assessmentAssessmentL&I violationPermitLicenseCertification
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 record17 events · exact dates, newest first
- CertificationFire Alarm Certification
- CertificationFire Alarm Certification
- CertificationFire Alarm Certification
- CertificationSprinkler Certification
- CertificationSprinkler Certification
- LicenseRidge Holdings LLC: Rental landlord or residential registration initially issued
- L&I violationCLIP VIOLATION NOTICE
- L&I violationLICENSE - RENTAL PROPERTY
- PermitSuppression
- PermitElectrical
- PermitMechanical
- L&I violationPERM - MUST POST
- L&I violationWORKMANLIKE- BUILDING CODE
- L&I violationPERM - MUST POST
- PermitPlumbing
- PermitNew construction
- PermitZoning/use
Verify the public record
Property tax
$6,170/year estimated property tax
2026 taxable assessment $440,800 × 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 $621,500. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 8811059002026 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
Commercial property
Apartment building, recorded in the City's multi-family category. The public record and owner trail follow.
What it is
Apartment building
Apts 5-50 Units Masonry
Owner
Ridge Holdings LLC
$ / sq ft
$115
assessed value ÷ interior sqft
Licensed units
6
active rental license
Interior area
5,412 sqft
Lot size
2,171 sqft
Stories
3
Built
2014
Zoning
CMX2.5
Recorded owner
Who's behind it
Ridge Holdings LLC · corporate / LLC owner
• Owns 3 properties across Philadelphia under this name, assessed at $1.9M combined
• Tax bills mail to Po Box 430, Bryn Mawr PA, 19010 — outside Philadelphia
• Holds an active rental license for this address
Block context
500 block of Martin St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 508 Martin St · 512 Martin St
L&I license dates · data through Jul 28, 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 28, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
Ridge Holdings LLCActive
Rental · Initial issue date Dec 20, 2019 · Filed expiration Dec 19, 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 17 dated rows
- CertificationFire Alarm Certification
Certification BC-2026-013957 · Certified
Expires 2027-02-10
- CertificationFire Alarm Certification
Certification BC-2025-007575 · Certified
Expires 2026-01-28
- CertificationFire Alarm Certification
Certification BC-2024-013940 · Certified
Expires 2025-02-16
- CertificationSprinkler Certification
Certification BC-2024-013938 · Certified
Expires 2025-02-13
- CertificationSprinkler Certification
Certification BC-2024-013928 · Certified
Expires 2024-02-16
- License issue eventRidge Holdings LLC: Rental landlord or residential registration initially issued
License 832247 · Active
License event. Registration does not prove present operation or storefront occupancy.
- ViolationCLIP VIOLATION NOTICE
Case 714491 · Violation 5250529 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationLICENSE - RENTAL PROPERTY
Case 714491 · Violation 5250530 · Code CP-101 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- PermitSuppression
Permit 548858 · COMPLETED
FOR THE INSTALLATION OF A FIRE SUPPRESSION SYSTEM IN ACCORDANCE WITH NFPA 2007, STANDARD 13 & 13R, WITH THE INSTALLATION OF A NEW 2" BACKFLOW PREVENTION ASSEMBLY AND A NEW 2" SERVICE LINE.
- PermitElectrical
Permit 544526 · COMPLETED
INSTALL 85 RECEPTS, 45 SWITCHES, 63 LIGHTS, 25 GFI RECEPTS AND INSTALL A 600AMP SERVICE COMPLETE AS PER 2008 NEC (NORTH DISTRICT) INSTALL FIRE ALARM SYSTEM AS PER NFPA72
- PermitMechanical
Permit 542825 · COMPLETED
HVAC < 2000 CFM- INSTALLATION OF (5)-2 TON HVAC AND ASSOCIATED DUCT WORK. SINGLE SPACE HVAC SYSTEMS HVAC / DUCTWORK ENTIRELY WITHIN THE SINGLE SPACE TENANT.NO DUCTWORK PENETRATION OF TENANT SEPARATION ASSEMBLIES ( WALLS, CEILINGS, OR ROOF ) OR COMBINING/SHARING DUCT WORK FOR MULTIPLY UNITS.
- ViolationPERM - MUST POST
Case 523408 · Violation 3208099 · Code A-302.8/30 · CLOSEDCASE
City marked the case closed; that does not mean the original condition never existed.
- ViolationWORKMANLIKE- BUILDING CODE
Case 523408 · Violation 3208098 · Code A-104.1/1 · CLOSEDCASE
City marked the case closed; that does not mean the original condition never existed.
- ViolationPERM - MUST POST
Case 530935 · Violation 3208113 · Code A-302.8/30 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- PermitPlumbing
Permit 530935 · COMPLETED
INSTALL FIXTURES,HOT WATER HEATER AND STACK FOR NEW CONSTRUCTION (MIXED USE)
- PermitNew construction
Permit 523408 · COMPLETED
NEW CONSTRUCTION OF A 4 STORY STRUCTURE @ 508 & 510 MARTIN, ASSOCIATED CIVIL SITE WORK. BUILDING TO BE FULLY SPRINKLERED. NO SPECIAL PRECAUTIONS CITED OR NO UNDERPINNING (NO ADJACENT STRUCTURES). VACANT COMMERCIAL SPACE 1ST FLOOR. ADDITIONAL PERMITS REQ: ELECTRICAL, PLUMBING, HVAC, SPRINKLERS, USE & CO PERMIT FOR VACANT COMMERCIAL, SIGNS. IN CONJUNCTION WITH 510 MARTIN ST.
- PermitZoning/use
Permit 505571 · COMPLETED
FOR THE ERECTION OF A FOUR (4) STORY SEMI-DETACHED BUILDING. SIZE AND LOCATION AS SNOWN ON APPLICATION/PLANS. VACANT COMMERCIAL ON FIRST FLOOR (USE REGISTRATION PERMIT REQUIRED PRIOR TO OCCUPANCY) AND SIX (6) FAMILY DWELLING ABOVE WITH TWO (2) INTERIOR OFF STREET PARKING SPACES ACCESSORY TO THE COMMERCIAL SPACE. NO SIGNS ON THIS APPLICATION.
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 29, 2026, 8:21 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)