House report

1844 Mountain St

3 bd3 ba3 stories2,250 sqftRSA5built 2018

Property at a glanceHouse

Owner-occupancy signal

2026 assessment
$569K OPA value, not a listing price
From above · selected parcel outlined; choose a neighboring polygon to open it — imagery © Esri, Maxar

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.

$0$500K$1.0MZIP 19145 (Girard Estate · South Philadelphia) median$546K2010201320162019202220252027
Property assessmentBlock median & rangeZIP 19145 (Girard Estate · South Philadelphia) medianAssessmentDeed / saleL&I violationAppealPermitInspection

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 record46 events · exact dates, newest first
  1. InspectionL&I investigation
  2. InspectionL&I investigation
  3. Deed / saleDeed / sale $440K
  4. InspectionL&I investigation
  5. InspectionL&I investigation
  6. AppealRB_LIRB
  7. InspectionBP_BLDG
  8. L&I violationPERMB- WORK NOT SAME AS PERMIT
  9. L&I violationPERMB- TO COMPLY VIOL
  10. InspectionBP_BLDG
  11. PermitZoning/use
  12. PermitNew Construction
  13. InspectionBP_BLDG
  14. InspectionBP_BLDG
  15. L&I violationCO- WK NOT ENTIRELY DONE NO CO
  16. InspectionBP_BLDG
  17. InspectionPRECOURT (likely: pre-court compliance inspection)
  18. InspectionBP_BLDG
  19. InspectionBP_BLDG
  20. InspectionBP_BLDG
  21. L&I violationPERMB- WORK NOT SAME AS PERMIT
  22. L&I violationPERMB- REV AREA LARG THAN ORIG
  23. L&I violationPERMZ- CONST REMOV CHANGE
  24. L&I violationPERMB- WORK NOT SAME AS PERMIT
  25. L&I violationPERMZ- CONST REMOV CHANGE
  26. L&I violationPERMB- REV AREA LARG THAN ORIG
  27. InspectionBP_BLDG
  28. PermitElectrical
  29. Deed / saleDeed / sale $410K
  30. PermitNew Construction
  31. PermitNew Construction or Additions
  32. PermitPlumbing
  33. PermitSuppression
  34. PermitZoning/use
  35. PermitNew Construction
  36. L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
  37. L&I violationCLIP VIOLATION NOTICE
  38. L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
  39. L&I violationCLIP VIOLATION NOTICE
  40. L&I violationLICENSE-VAC LOT
  41. L&I violationCLIP VIOLATION NOTICE
  42. L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
  43. L&I violationCLIP VIOLATION NOTICE
  44. L&I violationVACANT LOT STANDARD
  45. L&I violationLICENSE - VACANT LOT
  46. L&I violationCLIP VIOLATION NOTICE

Flags: material assessment exemption; legal basis and term unverified · 1 zoning/board appeal on record. Informational only. Not investment advice or a consumer report (FCRA).

Verify the public record

$1,592/year estimated property tax

2026 taxable assessment $113,720 × 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 $546,100. It is not the 2026 billed-year value.

Current City balanceCheck Tax Center

Payments, credits, interest, and the current amount due are maintained by the City.

OPA 363106600
Open Philadelphia Tax Center →Use “View period balance” to inspect each tax year.
Exemption classificationPartial assessment exemption, basis unverified

2026 OPA taxes $113,720 of $568,600 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.

See the assessment math →
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 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.

Using OPA's taxable amount ~$1,592/year

$113,720 taxable basis

Difference to verify+$6,367/year
If the full assessment were taxable ~$7,959/year

$568,600 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: ($568,600 assessed − $454,880 exempt) × 1.3998% ≈ $1,592/year Full-assessment scenario: $568,600 × 1.3998% ≈ $7,959/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
3
Stories
3
Interior
2,250 sqft livable area
Lot
750 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
Zoning
RSA5 city zoning code
Zoning appeals
1 OPEN · City affirmed · 2019

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: 1842 Mountain St  ·  1840 Mountain St

No business or residential license records

No business license or residential registration matched this OPA parcel in the latest City data.

Verify with the City ↗
Open every source row 46 dated rows
  1. InvestigationL&I investigation

    Case 675885 · PASSED

    The cited inspection visit was marked passed.

  2. InvestigationL&I investigation

    Case 675885 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  3. Recorded transfer$440K transfer

    2021

  4. InvestigationL&I investigation

    Case 704925 · PASSED

    The cited inspection visit was marked passed.

  5. InvestigationL&I investigation

    Case 704925 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  6. AppealRB_LIRB

    Appeal 37090 · OPEN · City affirmed

    Related permit 675885 · THE PROPERTY WAS PURCHASED IN NOVEMBER 2018 FROM 1844 MOUNTAIN LLC AND GM HOME INC, WHICH CONSTRUCTED THIS NEW CONSTRUCTION HOME AND OBTAINED A NEW CONSTRUCTION PERMIT (NO. 809649). AT THE TIME THE PROPERTY WAS TRANSFERRED TO APPELLANT BY T

  7. InvestigationBP_BLDG

    Case 704925 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  8. ViolationPERMB- WORK NOT SAME AS PERMIT

    Case 704925 · Violation 211971209 · Code A-302.10/2 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  9. ViolationPERMB- TO COMPLY VIOL

    Case 704925 · Violation 211971207 · Code A-301.6/1 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  10. InvestigationBP_BLDG

    Case 704925 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  11. PermitZoning/use

    Permit 970399 · COMPLETED

    FOR THE ERECTION OF AN ATTACHED STRUCTURE WITH A ROOF DECK ACCESSED BY A ROOF DECK ACCESS STRUCTURE OVER THE THIRD STORY PORTION. SIZE AND LOCATION AS SHOWN PER APPLICATION/PLANS. STRUCTURE FOR USE AS A SINGLE FAMILY HOUSEHOLD LIVING.

  12. PermitNew Construction

    Permit 970400 · Completed

    FOR THE LEGALIZATION OF ERECTION OF AN ADDITION TO THE ORIGINAL 8 FEET SETBACK AT THE 3RD FLOOR FRONT. AND MODIFICATION TO THE FRONT AND REAR STEPS TO THE FIRST FLOOR LEVEL.ALSO AMEND THE THIRD FLOOR LAYOUT AND BRACING DETAILS TO THE NEW CONSTRUCTION. SEE AP#809649 FOR THE NEW CONSTRUCTION OF ATTHACHED STRUCTURE USED AS SINGLE FAMILY HOUSEHOLD LIVING. SEPARATE PERMITS REQUIRED FOR M.E.P.S WORK. **AMENDMENT TO RECONSTRUCT FRONT STAIRS AS PER APPROVED PLANS**

  13. InvestigationBP_BLDG

    Case 675885 · CLOSED

    City marked the record closed; open the case for the closing reason.

  14. InvestigationBP_BLDG

    Case 675885 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  15. ViolationCO- WK NOT ENTIRELY DONE NO CO

    Case 675885 · Violation 211960199 · Code A-701.5/1 · COMPLIED

    Resolution: COMPLIED - PERMIT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.

  16. InvestigationBP_BLDG

    Case 675885 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  17. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 656104 · PASSED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.

  18. InvestigationBP_BLDG

    Case 656104 · CLOSED

    City marked the record closed; open the case for the closing reason.

  19. InvestigationBP_BLDG

    Case 656104 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  20. InvestigationBP_BLDG

    Case 656368 · CLOSED

    City marked the record closed; open the case for the closing reason.

  21. ViolationPERMB- WORK NOT SAME AS PERMIT

    Case 656104 · Violation 4888719 · Code A-302.10/2 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  22. ViolationPERMB- REV AREA LARG THAN ORIG

    Case 656104 · Violation 4888720 · Code A-302.10/7 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  23. ViolationPERMZ- CONST REMOV CHANGE

    Case 656104 · Violation 4888718 · Code A-301.1/64 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  24. ViolationPERMB- WORK NOT SAME AS PERMIT

    Case 675885 · Violation 211960200 · Code A-302.10/2 · COMPLIED

    Resolution: COMPLIED - PERMIT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.

  25. ViolationPERMZ- CONST REMOV CHANGE

    Case 675885 · Violation 211960198 · Code A-301.1/64 · COMPLIED

    Resolution: COMPLIED - PERMIT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.

  26. ViolationPERMB- REV AREA LARG THAN ORIG

    Case 675885 · Violation 211960197 · Code A-302.10/7 · COMPLIED

    Resolution: COMPLIED - PERMIT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.

  27. InvestigationBP_BLDG

    Case 656104 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  28. PermitElectrical

    Permit 846281 · COMPLETED

    COMPLETE 200AMP SERVICE AND WIRING THROUGHOUT PER 2008 NEC (SFD)

  29. Recorded transfer$410K transfer

    2018

  30. PermitNew Construction

    Permit 842167 · Completed

    EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES- For the installation if New Ductwork, Registers/Grilles/Diffusers, and Warm-Air Appliances as per attached standards. Deviations from these standards require submission of construction and site plans. WORK TO BE PERFPRMRD BY PA HIC 121123

  31. PermitNew Construction or Additions

    Permit 840793 · Completed

    RUN NEW DRAIN AND WATER LINES FOR 3 BATHROOM GROUPS, KITCHEN SINK, LAUNDRY TUB AND NEW WATER HEATER.THE INSTALLATION WILL COMPLY WITH THE PHILADEPHIA PLUBMING CODE 2004

  32. PermitPlumbing

    Permit 831233 · COMPLETED

    REPLACE HOUSE TRAP, HOUSE DRAIN, FRESH AIR INLET, AND 1" INCH WATER SERVICE-PA1#20173130952-"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"

  33. PermitSuppression

    Permit 825535 · COMPLETED

    FOR THE INSTALLATION OF AN AUTOMATIC SPRINKLER SYSTEM WITH A 1" COMBINED FIRE & DOMESTIC SERVICE LINE FOR A THREE (3) STORY SINGLE FAMILY DWELLING WITH ROOFTOP STRUCTURE.SYSTEM INSTALLATION IN ACCORDANCE WITH NFPA 13D.

  34. PermitZoning/use

    Permit 809645 · COMPLETED

    FOR THE ERECTION OF AN ATTACHED STRUCTURE WITH A ROOF DECK ACCESSED BY A ROOF DECK ACCESS STRUCTURE OVER THE THIRD STORY PORTION. SIZE AND LOCATION AS SHOWN PER APPLICATION/PLANS. STRUCTURE FOR USE AS A SINGLE FAMILY HOUSEHOLD LIVING.

  35. PermitNew Construction

    Permit 809649 · Completed

    FOR THE ERECTION OF A THREE STORY STRUCTURE WITH A ROOF DECK ACCESSED BY ROOF DECK ACCESS STRUCTURE. STRUCTURE FOR USE AS A SINGLE FAMILY DWELLING. BUILDING IS FULLY SPRINKLERED. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT STRUCTURAL ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS REQUIRED FOR MECHANICAL, ELECTRICAL, PLUMBING AND FIRE SUPPRESSION WORK.A COVERED WALKWAY OR SIDEWALK CLOSURE SHALL BE REQUIRED WITHIN 9 FEET OF THE BUILDING FAÇADE IN ACCORDANCE WITH SECTION 3306 OF THE 2009 IBC. SEPARATE BUILDING AND/OR STREETS DEPARTMENT PERMIT REQUIRED PRIOR TO THE START OF ANY WORK.

  36. ViolationEXT A-VACANT LOT CLEAN/MAINTAI

    Case 496808 · Violation 3673029 · Code PM-302.2/4 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  37. ViolationCLIP VIOLATION NOTICE

    Case 496808 · Violation 3673028 · Code CP-01 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  38. ViolationEXT A-VACANT LOT CLEAN/MAINTAI

    Case 439748 · Violation 3235284 · Code PM-302.2/4 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  39. ViolationCLIP VIOLATION NOTICE

    Case 439748 · Violation 3235283 · Code CP-01 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  40. ViolationLICENSE-VAC LOT

    Case 413744 · Violation 3033135 · Code PM-102.4/1 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  41. ViolationCLIP VIOLATION NOTICE

    Case 413744 · Violation 3033134 · Code CP-01 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  42. ViolationEXT A-VACANT LOT CLEAN/MAINTAI

    Case 407157 · Violation 3006467 · Code PM-302.2/4 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  43. ViolationCLIP VIOLATION NOTICE

    Case 407157 · Violation 3006466 · Code CP-01 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  44. ViolationVACANT LOT STANDARD

    Case 232015 · Violation 1998434 · Code PM-306.0/2 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  45. ViolationLICENSE - VACANT LOT

    Case 232015 · Violation 1998433 · Code CP-102 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  46. ViolationCLIP VIOLATION NOTICE

    Case 232015 · Violation 1998432 · Code CP-01 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

Where this comes from

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)