House report
127 Mountain St
2 bd1 ba2 stories720 sqftRSA5built 1920
Owner-occupancy signal
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$203K 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$203K 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$203K 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$248K 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$269K 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$269K 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$269K 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$195K 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$195K 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$218K 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$218K 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$212K 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 · 2009Deed / sale $112KA 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 · 2010-04-22Major 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 ↗
- L&I violation · 2010-03-15PERMB- INSTALL HVAC SYSA 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 · 2010-03-15PERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)Building permit required for interior alteration or repairHow L&I violations and orders work ↗
- L&I violation · 2010-03-15PERME- INST/REPL/REPAIR WIRE (Electrical permit required for wiring installation, replacement, or repair)Electrical permit required for wiring installation, replacement, or repairHow L&I violations and orders work ↗
- L&I violation · 2010-03-15PERMP- ALTER/REPAIR/REPL PLUMBA 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 · 2010-03-15LIC MUST BE AVAIL FOR 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 · 2010-03-15SWO- CONSTR W/O BLDG PERMIT (Stop-work order for construction without a building permit)Stop-work order for construction without a building permitHow L&I violations and orders work ↗
- L&I violation · 2010-03-15PENALTY- NO BLDG PERM INFOA 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 · 2010-03-15BP_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 · 2010-04-28BP_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 ↗
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.
- InspectionBP_BLDG
- PermitMajor alteration
- L&I violationPERMB- INSTALL HVAC SYS
- L&I violationPERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)
- L&I violationPERME- INST/REPL/REPAIR WIRE (Electrical permit required for wiring installation, replacement, or repair)
- L&I violationPERMP- ALTER/REPAIR/REPL PLUMB
- L&I violationLIC MUST BE AVAIL FOR INSP
- L&I violationSWO- CONSTR W/O BLDG PERMIT (Stop-work order for construction without a building permit)
- L&I violationPENALTY- NO BLDG PERM INFO
- InspectionBP_BLDG
- Deed / saleDeed / sale $112K
Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$3,053/year estimated property tax
2026 taxable assessment $218,100 × 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 $211,900. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 0110995002026 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.
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
100 block of Mountain St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 125 Mountain St · 129 Mountain St
L&I license dates · data through Jul 24, 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 24, 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 11 dated rows
- InvestigationBP_BLDG
Case 228693 · PASSED
The cited inspection visit was marked passed.
- PermitMajor alteration
Permit 273470 · COMPLETED
APPLICANT AGREES TO LIMIT THE CONSTRUCTION TO COMPLY WITH EZ PERMIT STANDARD FOR INTERIOR ALTERATIONS, DATED FEB. 2007. DEVIATIONS FROM THIS STANDARD WILL RESULT IN THE REVOCATION OF THIS PERMIT AND IMPOSITION OF FURTHER PENALTIES. SEPARATE PERMITS REQUIRED FOR PLUMBING, ELECTRIC AND HVAC. INSPECTION REQUIRED TO LIFT STOP WORK ORDER
- ViolationPERMB- INSTALL HVAC SYS
Case 228693 · Violation 1617247 · Code A-301.1/46 · COMPEXCP
- ViolationPERMB- ALTER REPAIR INT PART (Building permit required for interior alteration or repair)
Case 228693 · Violation 1617246 · Code A-301.1/4 · COMPEXCP
- ViolationPERME- INST/REPL/REPAIR WIRE (Electrical permit required for wiring installation, replacement, or repair)
Case 228693 · Violation 1617248 · Code A-301.1/51 · COMPEXCP
- ViolationPERMP- ALTER/REPAIR/REPL PLUMB
Case 228693 · Violation 1617249 · Code A-301.1/55 · COMPEXCP
- ViolationLIC MUST BE AVAIL FOR INSP
Case 228693 · Violation 1617250 · Code A-302.8/31 · COMPEXCP
- ViolationSWO- CONSTR W/O BLDG PERMIT (Stop-work order for construction without a building permit)
Case 228693 · Violation 1617251 · Code A-504.1/3 · COMPEXCP
- ViolationPENALTY- NO BLDG PERM INFO
Case 228693 · Violation 1617252 · Code A-901.13/1 · COMPEXCP
- InvestigationBP_BLDG
Case 228693 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- Recorded transfer$112K transfer
2009
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 25, 2026, 8:33 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)
