2026 assessment
$279K
OPA value, not a listing price
House report
1829 Mountain St
3 bd1 ba1,120 sqftRSA5built 1925
Property at a glanceHouse
Individual, other or unknown mailing address
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$132K 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$132K 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$132K 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$237K 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$255K 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$255K 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$255K 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$263K 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$263K 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$279K 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$279K 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$275K 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 · 2007-05-01AlterationThis 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 · 2007-07-17ElectricalThis 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 · 2008-11-05ZoningThis 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 · 2008-11-05AdditionThis 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 · 2009-01-13ElectricalThis 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 · 2009-02-04PlumbingThis 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 · 2009-02-06MechanicalThis 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 · 2009-01-26PERMB- FINAL PRE-CO INSPA 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 · 2007-10-31COMPL CONCEAL- BLDG PERM WORKA 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 · 2009-01-23BP_BLDGA 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 · 2009-02-18BP_BLDGA 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 · 2009-04-14BP_BLDGA 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 · 2009-06-04BP_BLDGA 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 · 2014-02-06JENNIFER NGUYEN (JENNIFER 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 ↗
- Appeal · 2008-08-06Zoning board appealA challenge or request reviewed through a City appeals process. Filing an appeal does not show who prevailed; read the decision, conditions, and related permit or violation.How Philadelphia L&I appeals work ↗
Property assessmentBlock median & rangeZIP 19145 (Girard Estate · South Philadelphia) medianAssessmentL&I violationAppealPermitInspectionLicense
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
- LicenseJENNIFER NGUYEN (JENNIFER LLC): Rental landlord or residential registration initially issued
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- PermitMechanical
- PermitPlumbing
- L&I violationPERMB- FINAL PRE-CO INSP
- InspectionBP_BLDG
- PermitElectrical
- PermitZoning
- PermitAddition
- AppealZoning board appeal
- L&I violationCOMPL CONCEAL- BLDG PERM WORK
- PermitElectrical
- PermitAlteration
Flags: active rental license · 1 zoning/board appeal on record. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$3,910/year estimated property tax
2026 taxable assessment $279,300 × 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 $275,400. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 3630958002026 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
1
Interior
1,120 sqft
livable area
Lot
665 sqft
Basement
Full
city code D
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
Above average
city code 3
Above averageBelow average
Quality grade
C
assessor's grade
ABCDE
Zoning
RSA5
city zoning code
Zoning appeals
1
CLOSED · Granted · 2008
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
1800 block of Mountain St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1827 Mountain St · 1831 Mountain St
L&I license dates · data through Jul 25, 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 25, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
JENNIFER NGUYEN (JENNIFER LLC)Active
Rental · Initial issue date Feb 6, 2014 · Filed expiration Feb 28, 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
- License issue eventJENNIFER NGUYEN (JENNIFER LLC): Rental landlord or residential registration initially issued
License 617255 · Active
License event. Registration does not prove present operation or storefront occupancy.
- InvestigationBP_BLDG
Case 190250 · PASSED
The cited inspection visit was marked passed.
- InvestigationBP_BLDG
Case 190250 · PASSED
The cited inspection visit was marked passed.
- InvestigationBP_BLDG
Case 190250 · PASSED
The cited inspection visit was marked passed.
- PermitMechanical
Permit 199857 · COMPLETED
INSTALLATION OF 3 TON HEAT PUMP AND DUCTWORK
- PermitPlumbing
Permit 199535 · COMPLETED
INSTALLATION OF 2 WATER CLOSETS, 2 LAVYS, 1 TUB AND 1 LAUNDRY
- ViolationPERMB- FINAL PRE-CO INSP
Case 190250 · Violation 1298961 · Code A-402.5/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 190250 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitElectrical
Permit 196426 · COMPLETED
INSTALLATION OF (10)SWITCHES, (20)OUTLETS, (10)LIGHT FIXTURES, 3 GFI'S... IN ACCORDANCE WITH 2005 NEC
- PermitZoning
Permit 78099 · COMPLETED
FOR THE LEGALIZATION OF AN ERECTION OF A TWO STORY REAR AREA ADDITION TO AN EXISTING SINGLE FAMILY DWELLING
- PermitAddition
Permit 77751 · COMPLETED
REPLACEMENT EXISTING KITCHEN AND BEDROOM AS PER APPROVED PLANS
- AppealZoning board appeal
Appeal 5659 · CLOSED · Granted
PERMIT FOR THE LEGALIZATION OF AN ERECTION OF A TWO STORY ADDITION AT GRADE LEVEL SUPPORTED ON A FOUNDATION SYSTEM.
- ViolationCOMPL CONCEAL- BLDG PERM WORK
Case 72916 · Violation 719564 · Code A-402.1/1 · CLOSEDCASE
City marked the case closed; that does not mean the original condition never existed.
- PermitElectrical
Permit 89782 · COMPLETED
INSTALL 200AMP SINGLE PHASE 240VOLT SERVICE (SOUTH DISTRICT)
- PermitAlteration
Permit 72916 · COMPLETED
REPLACE ROOF, REMOVE AND REBUILD REAR WALL USING 8" BLOCK AND STUCCO,REPAIR OR REPLACE 20 JOISTS( APPROX.) INSTALL NEW WINDOWS, INSTALL NEW FLOORING,NEW FRAMING AND SHEETROCK
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)