House report
1820 S 18th St
2 bd2 ba2 stories1,400 sqftCMX2built 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$93K 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$240K 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$240K 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$266K 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$286K 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$286K 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$286K 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$409K 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$409K 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$396K 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$396K 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$323K 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 $93KA 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 · 2016Deed / 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 ↗
- Deed / sale · 2017Deed / sale $295KA 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 · 2021Deed / sale $335KA 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 · 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 · 2016-01-27ElectricalThis 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 · 2016-02-02PlumbingThis 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 · 2016-03-11MechanicalThis 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 · 2020-12-11Addition and/or AlterationThis 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 · 2019-03-13ARCHITECT/ENGINEER SERVICESA 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 · 2019-03-13PERMB- NO NEED BUT MUST COMPLYA 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 · 2019-03-13PENALTY- 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 ↗
- L&I violation · 2019-03-13STOP WORK ORDERA 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 · 2019-03-13PERMB- WORK NOT SAME AS PERMITA 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 · 2019-03-13BP_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 · 2019-10-09BP_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 · 2015-09-01SINGLESOURCE PROPERTY SOLUTIONS (PROPERTY MANAGMENT): Vacant Residential Property / Lot 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 ↗
- License · 2016-02-25SINGLESOURCE PROPERTY SOLUTIONS (PROPERTY MANAGMENT): Vacant Residential Property / Lot landlord or residential registration marked inactiveA 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 ↗
- License · 2013-06-08GENERATION MORTGAGE COMPANY: Vacant Residential Property / Lot 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 ↗
- License · 2016-04-29GENERATION MORTGAGE COMPANY: Vacant Residential Property / Lot landlord or residential registration marked inactiveA 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 ↗
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.
- Deed / saleDeed / sale $335K
- PermitAddition and/or Alteration
- InspectionBP_BLDG
- L&I violationARCHITECT/ENGINEER SERVICES
- L&I violationPERMB- NO NEED BUT MUST COMPLY
- L&I violationPENALTY- NO BLDG PERM INFO
- L&I violationSTOP WORK ORDER
- L&I violationPERMB- WORK NOT SAME AS PERMIT
- InspectionBP_BLDG
- Deed / saleDeed / sale $295K
- LicenseGENERATION MORTGAGE COMPANY: Vacant Residential Property / Lot landlord or residential registration marked inactive
- PermitMechanical
- LicenseSINGLESOURCE PROPERTY SOLUTIONS (PROPERTY MANAGMENT): Vacant Residential Property / Lot landlord or residential registration marked inactive
- PermitPlumbing
- PermitElectrical
- PermitMajor alteration
- Deed / saleDeed / sale $275K
- LicenseSINGLESOURCE PROPERTY SOLUTIONS (PROPERTY MANAGMENT): Vacant Residential Property / Lot landlord or residential registration initially issued
- Deed / saleDeed / sale $93K
- LicenseGENERATION MORTGAGE COMPANY: Vacant Residential Property / Lot landlord or residential registration initially issued
Flags: material assessment exemption; legal basis and term unverified. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$2,260/year estimated property tax
2026 taxable assessment $161,486 × 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 $323,300. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 4812561002026 OPA taxes $161,486 of $395,800 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.
$161,486 taxable basis
$395,800 scenario basis
- Legal basis or program
- Approval or expiration date
- Treatment after a sale
- Current Tax Center balance
Show the assessment math
2026: ($395,800 assessed − $234,314 exempt) × 1.3998% ≈ $2,260/year
Full-assessment scenario: $395,800 × 1.3998% ≈ $5,540/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.
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
1800 block of S 18th St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1818 S 18th St · 1822 S 18th St
L&I license dates · data through Jul 27, 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 27, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
Vacant Residential Property / Lot · Initial issue date Sep 1, 2015 · Terminal license date Feb 25, 2016
Vacant Residential Property / Lot · Initial issue date Jun 8, 2013 · Terminal license date Apr 29, 2016
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 20 dated rows
- Recorded transfer$335K transfer
2021
- PermitAddition and/or Alteration
Permit EP-2020-009769 · Completed
Installation of a 5.2kW (DC) solar system, consisting of (16) Hanwha Q.PEAK DUO G-5 325W MODULES, AND (16) ENPHASE IQ7-60-2-US MIRCOINVERTERS AS PER APPROVED DRAWINGS-2014 NEC.
- InvestigationBP_BLDG
Case 676416 · PASSED
The cited inspection visit was marked passed.
- ViolationARCHITECT/ENGINEER SERVICES
Case 676416 · Violation 4974720 · Code A-304.1/1 · ERROR
- ViolationPERMB- NO NEED BUT MUST COMPLY
Case 676416 · Violation 4974718 · Code A-301.2/1 · ERROR
- ViolationPENALTY- NO BLDG PERM INFO
Case 676416 · Violation 4974722 · Code A-901.13/1 · ERROR
- ViolationSTOP WORK ORDER
Case 676416 · Violation 4974721 · Code A-504.1/1 · ERROR
- ViolationPERMB- WORK NOT SAME AS PERMIT
Case 676416 · Violation 4974719 · Code A-302.10/2 · ERROR
- InvestigationBP_BLDG
Case 676416 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- Recorded transfer$295K transfer
2017
- License terminal eventGENERATION MORTGAGE COMPANY: Vacant Residential Property / Lot landlord or residential registration marked inactive
License 595994 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- PermitMechanical
Permit 675732 · COMPLETED
INSTALL 80,000 92% GAS FURNACE IN BASEMENT WITH AIR AND RELATED DUCT WORK
- License terminal eventSINGLESOURCE PROPERTY SOLUTIONS (PROPERTY MANAGMENT): Vacant Residential Property / Lot landlord or residential registration marked inactive
License 676252 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- PermitPlumbing
Permit 667401 · COMPLETED
ISTALL 3-WATER CLOSETS, 2-BATH TUBS, 3-LAVY SINKS, 1-KITCHEN SINK, 1-WASHER - THE INSTALLATION WILL COMPY WITH THE PHILADEPHIA PLUBMING CODE 2004
- PermitElectrical
Permit 665959 · COMPLETED
COMPLETE RE-WIRE OF PROPERTY: 50- RECEPTACLES, 16- SWITCHES, 5- SMOKE DETECTORS, 30- HI-HATS... IN ACCORDANCE WITH 2008 NEC FOR A ONE FAMILY BUILDING
- PermitMajor alteration
Permit 661384 · COMPLETED
INTERIOR ALTERATIONS TO INCLUDE DRYWALL THROUGHOUT, MOISTURE RESISTANT DRYWALL IN THE BATHROOM AND KITCHEN, NEW WINDOWS AND DOORS IN EXISTING OPENING. APPLICANT AGREES TO LIMIT THE CONSTRUCTION TO COMPLY WITH EZ PERMIT STANDARD FOR INTERIOR ALTERATIONS, DATED JANUARY 2011. DEVIATION FROM THE STANDARD WILL RESULT IN REVOCATION OF THIS PERMIT AND IMPOSITION OF FURTHER PENALTIES. SEPARATE PERMITS REQUIRED FOR PLUMBING, ELECTRICAL AND MECHANICAL WORK
- Recorded transfer$275K transfer
2016
- License issue eventSINGLESOURCE PROPERTY SOLUTIONS (PROPERTY MANAGMENT): Vacant Residential Property / Lot landlord or residential registration initially issued
License 676252 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$93K transfer
2015
- License issue eventGENERATION MORTGAGE COMPANY: Vacant Residential Property / Lot landlord or residential registration initially issued
License 595994 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
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 28, 2026, 10:07 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)
