2026 assessment
$826K
OPA value, not a listing price
House report
1817 Addison St
3 stories1,440 sqftRSA5built 1800
Property at a glanceHouse
Individual, other or unknown mailing address
ZIP 19146 area
Graduate Hospital · Point Breeze
1800 block of Addison 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$526K 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$526K 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$526K 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$670K 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$692K 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$692K 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$692K 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$743K 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$743K 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$826K 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$826K 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$856K 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 · 2017Deed / sale $535KA 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 · 2017-06-28DemolitionThis 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 · 2017-10-17PlumbingThis 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 · 2017-10-17MechanicalThis 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 ↗
- Permit · 2017-12-20ElectricalThis 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 · 2017-12-20ZoningThis 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 · 2017-12-20Major 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 · 2019-04-08PlumbingThis 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 ↗
Property assessmentBlock median & rangeZIP 19146 (Graduate Hospital · Point Breeze) medianAssessmentDeed / salePermit
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 record8 events · exact dates, newest first
- PermitPlumbing
- PermitElectrical
- PermitZoning
- PermitMajor alteration
- PermitPlumbing
- PermitMechanical
- PermitDemolition
- Deed / saleDeed / sale $535K
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
$8,699/year estimated property tax
2026 taxable assessment $621,453 × 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 $855,500. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 0811194002026 OPA taxes $621,453 of $826,400 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.
$621,453 taxable basis
Difference to verify+$2,869/year
$826,400 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: ($826,400 assessed − $204,947 exempt) × 1.3998% ≈ $8,699/year
Full-assessment scenario: $826,400 × 1.3998% ≈ $11,568/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.
Stories
3
Interior
1,440 sqft
livable area
Lot
640 sqft
Central air
No
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
New / rehabbed
city code 2
New / rehabbed
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
1800 block of Addison St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1815 Addison St · 1819 Addison St
L&I licenses checked through Jul 24, 2026
No business or residential license records
No business license or residential registration matched this OPA parcel in the latest City data.
Open every source row 8 dated rows
- PermitPlumbing
Permit 964744 · COMPLETED
INSTALL NEW 3/4 WATER SERVICE FROM STREET TO SIDEWALK INSTALL NEW CURB STOP AS SIDEWALK AS PER 2004 PPC
- PermitElectrical
Permit 831220 · COMPLETED
RE WIRE DEVICES SWITCHES, RECEPTS, LIGHTS INSTALL HARD WIRED SMOKE DETECTORS, INSTALL 100AMP SERVICE COMPLETE WITH METER, PANEL AND GROUNDING AS PER 2008 NEC (SOUTH DISTRICT)
- PermitZoning
Permit 833956 · COMPLETED
FOR THE ERECTION OF A REAR YARD DECK OF AN EXISTING ATTACHED STRUCTURE AS PART OF AN EXISTING SINGLE FAMILY DWELLING AND AS APPROVED BY PHILADELPHIA HISTORICAL COMMISSION.(SIZE AND LOCATION AS SHOWN ON THE PLAN)
- PermitMajor alteration
Permit 833960 · COMPLETED
INTERIOR AND EXTERIOR RENOVATION AND ADDITION OF A REAR DECK OF 2ND FLOOR LEVEL OF AN EXISTING ATTACHED STRUCTURE AS APPROVED BY PHILADELPHIA HISTORICAL COMMISSION USED AS A SINGLE FAMILY DWELLING ( DETAILS AS SHOWN ON THE PLAN)
- PermitPlumbing
Permit 824508 · COMPLETED
PLUMBING ALTERATIONS THROUGHOUT AN EXISTING SINGLE FAMILY DWELLING.
- PermitMechanical
Permit 824516 · COMPLETED
EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES- FOR THE INSTALLATION OF NEW DUCTWORK, REGISTERS/GRILLES/DIFFUSERS, AND WARM-AIR APPLIANCES AS PER ATTACHED STANDARDS. DEVIATIONS FROM THESE STANDARDS REQUIRE SUBMISSION OF CONSTRUCTION AND SITE PLANSSUPPLY & INSTALL (2) 45000 BTU 95%FURNACES. FURNISH & INSTALL (2) 2TON 14 SEER AIR CONDITIONING SYSTEMS.
- PermitDemolition
Permit 795858 · COMPLETED
INTERIOR DEMO OF NON LOAD BEARING PARTITIONS ONLY. (SFD)
- Recorded transfer$535K transfer
2017
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 24, 2026, 9:55 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)