2026 assessment
$304K
OPA value, not a listing price
House report
1937 Mountain St
3 bd1 ba2 stories932 sqftRSA5built 1925
Property at a glanceHouse
Owner-occupancy signal
ZIP 19145 area
Girard Estate · South Philadelphia
1900 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$85K 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$85K 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$85K 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$226K 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$243K 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$243K 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$243K 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$321K 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$321K 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$304K 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$304K 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$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 ↗
- Deed / sale · 2015Deed / sale $56KA 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 · 2015Deed / sale $63KA 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 · 2017Deed / sale $220KA 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 · 2022Deed / sale $275KA 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 · 2015-12-01DemolitionThis 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 · 2015-12-28PlumbingThis 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 · 2016-01-04Major 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 · 2016-01-21PlumbingThis 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 · 2016-01-21Major 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 · 2016-01-27ElectricalThis 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 · 2016-03-17MechanicalThis 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 · 2016-02-23PERMB- WK DONE W/O NOTIFY 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 ↗
Property assessmentBlock median & rangeZIP 19145 (Girard Estate · South Philadelphia) medianAssessmentDeed / saleL&I violationPermit
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 record12 events · exact dates, newest first
- Deed / saleDeed / sale $275K
- Deed / saleDeed / sale $220K
- PermitMechanical
- L&I violationPERMB- WK DONE W/O NOTIFY INSP
- PermitElectrical
- PermitPlumbing
- PermitMajor alteration
- PermitMajor alteration
- PermitPlumbing
- PermitDemolition
- Deed / saleDeed / sale $56K
- Deed / saleDeed / sale $63K
Flags: material assessment exemption; legal basis and term unverified · historical tax ledger through 2016 with a lien entry. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$1,573/year estimated property tax
2026 taxable assessment $112,358 × 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 $248,100. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 3630983002026 OPA taxes $112,358 of $304,000 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.
See the assessment math →Historical delinquency sources Record found
This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.
A separate historical parcel ledger ending in 2016 records a balance and a lien entry. It is shown as historical context only.
2009$75.02 total · $0.00 principal · $0.00 interest · $0.00 penalty
For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”
The assessment exemption gap
OPA's 2026 roll shows a partial assessment exemption. The annual difference is measurable; the reason for it and what happens after a sale are not established here.
$112,358 taxable basis
Difference to verify+$2,682/year
$304,000 scenario basis
The assessment roll does not identify
- Legal basis or program
- Approval or expiration date
- Treatment after a sale
- Current Tax Center balance
Show the assessment math
2026: ($304,000 assessed − $191,642 exempt) × 1.3998% ≈ $1,573/year
Full-assessment scenario: $304,000 × 1.3998% ≈ $4,255/year
Do not treat the full-assessment scenario as inevitable or assume the current relief transfers. Obtain the approval history and verify the live Tax Center account before relying on either number.
The property, on paper
OPA physical field record.
Bedrooms
3
Bathrooms
1
Stories
2
Interior
932 sqft
livable area
Lot
658 sqft
Basement
Full, unfinished
city code C
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
Above average
city code 3
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
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
1900 block of Mountain St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1935 Mountain St · 1939 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.
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 12 dated rows
- Recorded transfer$275K transfer
2022
- Recorded transfer$220K transfer
2017
- PermitMechanical
Permit 676769 · COMPLETED
INSTALL OF AIR FLOW,70,000 BTU 92% EFF GAS FURNACE A NEW AIR FLOW WITH 2 1/2 TON OUTDOOR CONDENSING UNIT IN YARD WITH RELATED DUCT WORK
- ViolationPERMB- WK DONE W/O NOTIFY INSP
Case 654946 · Violation 3850424 · Code A-302.11/1 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- PermitElectrical
Permit 664864 · COMPLETED
HOUSE REWIRE, WIRE GENERAL LIGHTING AND RECEPTS,HARDWIRE SMOKE DETECTORS OUTSIDE LIGHTS & GFI'S, EXISTING 100AMP SERVICE CABLE,PANEL,METER SOCKET IN LOOP SHAPE AND TO REMAIN IN PLACE AS PER 2008 NEC (SOUTH DISTRICT)
- PermitPlumbing
Permit 664951 · COMPLETED
INSTALL 1 WATER CLOSET, 1 TUB, 1 LAVY SINK, 1 KITCHEN SINK, 1 LAUNDRY TUR, SUPPLY ALL ROUGH PLUMBING, STACKS, WATTER LINES & CONNECT ROUGH PLUMBING - THE INSTALLATION WILL COMPY WITH THE PHILADEPHIA PLUBMING CODE 2004
- PermitMajor alteration
Permit 663407 · COMPLETED
INTERIOR STRUCTURAL REPAIR PER SUBMITTED PLAN. BASEMENT FOOTING EXCAVATION NOT TO EXCEED BOTTOM OF EXISTING FOUNDATION.
- PermitMajor alteration
Permit 661507 · COMPLETED
FRAME INTERIOR NON-LOAD BEARING WALLS. ADD DRYWALL TO HOUSE AND PAINTING. ADD INSULATION TO HOUSE. INSTALL NEW DOORS AND WINDOWS. INSTALL UPDATED BATHROOM (TILE, TUB, TOILET, SINK BASE, LAUNDRY UNIT). INSTALL CABINETS.EZ PERMIT STANDARD ALTERATIONS- FOR ALTERATIONS TO AN EXISTING ONE FAMILY DWELLING AS PER ATTACHED STANDARD. DEVIATIONS FROM THIS STANDARD WILL RESULT IN PERMIT REVOCATION AND REQUIRE SUBMISSION OF CONSTRUCTION PLANS.
- PermitPlumbing
Permit 660448 · COMPLETED
WATER DIST, CURB TRAP & FAI PA20153560902 "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"
- PermitDemolition
Permit 654946 · COMPLETED
INTERIOR DEMO/ REMOVAL PLASTER AND WOOD LATH FROM WALLS EZ INTERIOR DEMOLITION- 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.
- Recorded transfer$56K transfer
2015
- Recorded transfer$63K transfer
2015
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 26, 2026, 5:01 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)