2026 assessment
$434K
OPA value, not a listing price
House report
1843 Mountain St
3 bd3 ba1,470 sqftRSA5built 2023
Property at a glanceHouse
Entity-held
ZIP 19145 area
Girard Estate · South Philadelphia
1800 block of Mountain St
Assessment and City record timeline
Published City assessments for this house 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$79K 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$79K 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$79K 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$114K 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$123K 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$123K 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$123K 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$158K 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$158K 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$434K 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$434K 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$463K 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 · 2021Land record $125KA 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 ↗
- Deed / sale · 2023Deed / sale $460KA 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 · 2018-06-01PlumbingThis 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 · 2018-06-15DemolitionThis permit category usually covers partial or complete removal 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 · 2018-08-09Zoning/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 · 2018-08-14DemolitionThis permit category usually covers partial or complete removal 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 · 2019-04-10Zoning/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 · 2019-04-10New 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 · 2021-02-05AlterationsThis 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 · 2022-07-08New 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 · 2022-09-06New 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 · 2022-10-19New 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 · 2022-10-30New 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 ↗
- L&I violation · 2023-03-21DEBRIS REMOVE- CONSTRUCTIONA 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 · 2023-03-21L&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 ↗
Property assessmentBlock median & rangeZIP 19145 (Girard Estate · South Philadelphia) medianAssessmentDeed / saleLand buyL&I violationPermitInspection
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
- L&I violationDEBRIS REMOVE- CONSTRUCTION
- InspectionL&I investigation
- Deed / saleDeed / sale $460K
- PermitNew Construction
- PermitNew Construction
- PermitNew Construction
- PermitNew Construction or Additions
- PermitAlterations
- Land buyLand record $125K
- PermitZoning/use
- PermitNew Construction
- PermitDemolition
- PermitZoning/use
- PermitDemolition
- PermitPlumbing
Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$6,068/year estimated property tax
2026 taxable assessment $433,500 × 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 $462,600. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 3630965002026 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.”
The property, on paper
OPA physical field record.
Bedrooms
3
Bathrooms
3
Interior
1,470 sqft
livable area
Lot
665 sqft
Basement
Full, finished
city code A
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
Newer construction
city code 1
Newer construction
Interior condition
Newer construction
city code 1
Newer construction
Quality grade
C-
assessor's grade
ABCDE
Zoning
RSA5
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Recorded owner
Who's behind it
Four Dartmouth Unit Two LLC · corporate / LLC owner
• Tax bills mail to 28 Cross Gates Rd, Madison NJ, 07940 — outside Philadelphia
Block context
1800 block of Mountain St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1841 Mountain St · 1845 Mountain St
L&I licenses checked through Jul 25, 2026
No business or residential license records
No business license or residential registration matched this OPA parcel in the latest City data.
Open every source row 15 dated rows
- ViolationDEBRIS REMOVE- CONSTRUCTION
Case CF-2023-022730 · Violation VI-2023-017148 · Code A-104.1/5 · SVN ISSUED
Resolution: SVN ISSUED
- InvestigationL&I investigation
Case CF-2023-022730
- Recorded transfer$460K transfer
2023
- PermitNew Construction
Permit EP-2022-010936 · Completed
Total wire of SFD Install new switches, outlets, lights, and GFCI’s. Smoke detectors as per NEC 2014 New 200 amp service complete
- PermitNew Construction
Permit FP-2022-002798 · Completed
FOR THE INSTALLATION OF AN AUTOMATIC FIRE SUPPRESSION SYSTEM IN ACCORDANCE WITH NFPA 13D THROUGHOUT THREE STORY BUILDING TO INCLUDE 2-INCH COMBINED LINE. ALL WORK SHALL BE DONE IN ACCORDANCE WITH APPROVED PLANS/HYDRAULIC CALCULATIONS AND SHALL BE PERFORMED BY A FIRE SUPPRESSION CONTRACTOR LICENSED BY THE CITY OF PHILADELPHIA.
- PermitNew Construction
Permit MP-2022-004479 · 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. (DUCTWORK (2) 92% 60,000 BTU GAS FURNACE (2) 2,5 TON AC 13 SEER (2) 2,5 TON COIL).
- PermitNew Construction or Additions
Permit PP-2022-009749 · Completed
One Family Dwelling: 1 Kitchen, 1 Laundry, 1 Shower, 1 Tub, 3 Toilets, 3 vanity, 1 HWH, 2 Hose Bib AS PER PPC 2018 Exterior : New Sewer, Fresh Air Inlets, Curb traps, Back Yard Drain, One 2'' combined water/fire line
- PermitAlterations
Permit PP-2021-000996 · Completed
Seal Lateral PPC 2018
- Land recordLand record
2021
- PermitZoning/use
Permit 864480 · COMPLETED
NEW CONSTRUCTION ON EXISTING FOUNDATION WITH NEW 3RD FLOOR ADDITION TO EXISTING 2 STORY ATTACHED STRUCTURE NEW 3 STORY REAR ADDITION WITH ROOF DECK AND PILOT HOUSE ACCESS STRUCTURE FOR USE AS SINGLE FAMILY HOUSEHOLD LIVING.
- PermitNew Construction
Permit 864485 · Completed
NEW CONSTRUCTION ON EXISTING FOUNDATION WITH NEW 3RD FLOOR ADDITION TO EXISTING 2 STORY ATTACHED STRUCTURE NEW 3 STORY REAR ADDITION WITH ROOF DECK AND PILOT HOUSE ACCESS STRUCTURE. LOWERING OF THE BASEMENT SLAB BUT NO UNDERPINNING ON THIS APPLICATION.
- PermitDemolition
Permit 883144 · EXPIRED
FOR THE COMPLETE DEMOLITION OF AN EXISTING ATTACHED TWO (2) STORY MASONRY STRUCTURE.STRUCTURE TO BE DEMOLISHED BY HAND ONLY. PEDESTRIAN PROTECTION TO BE IN PLACE PRIOR TO START OF WORK AND TO BE MAINTAINED DURING ALL DEMOLITION ACTIVITIES. SEPARATE STREETS DEPARTMENT APPROVAL REQUIRED FOR SIDEWALK CLOSURE.
- PermitZoning/use
Permit 883141 · COMPLETED
FOR THE COMPLETE DEMOLITION OF AN EXISTING ATTACHED TWO (2) STORY MASONRY STRUCTURE
- PermitDemolition
Permit 886202 · COMPLETED
EZ INTERIOR DEMOLITION-REMOVAL OF CEILINGS AND WALLS SINGLE FAMILY DWELLING FOR THE INTERIOR DEMOLITION OF NON LOAD-BEARING PARTITION WALLS AND CEILINGS AS PER ATTACHED STANDARD. DEVIATIONS FROM THIS STANDARD WILL RESULT IN PERMIT REVOCATION AND REQUIRE SUBMISSION OF CONSTRUCTION PLANS.
- PermitPlumbing
Permit 882131 · COMPLETED
SEAL LATERAL 20181521990(SFD)"SELF-CERTIFICATION'S ARE NO LONGER PERMITTED" - "ALL EXCAVATIONS AND PLUMBING TRENCHES IN EXCESS OF 5 FEET IN DEPTH MUST HAVE APPROVED SHORING IN PLACE AT THE TIME OF INSPECTION"
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 27, 2026, 2:24 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)