House report
321 S 17th St
5 bd · 4 ba · 3 stories · 5,127 sqft · RM1 · built 1800
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$1.3M 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$2.3M 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$2.3M 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$1.6M 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$1.6M 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$1.6M 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$1.6M 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$1.5M 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$1.5M 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$2.1M 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$2.1M 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$2.2M 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 · 2016Deed / sale $1.3MA 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 · 2023Deed / sale $2.1MA 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 · 2010-10-15AlterationThis 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 · 2016-02-08DemolitionThis 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 · 2016-03-31ZoningThis 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 · 2016-03-31Major 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 · 2016-04-11MechanicalThis 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 · 2016-04-11PlumbingThis 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 · 2016-04-19ElectricalThis 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 · 2016-06-07ElectricalThis 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 · 2017-04-28PlumbingThis 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 · 2017-05-04ElectricalThis 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 ↗
- L&I violation · 2016-05-16PERMB- 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 · 2016-05-16PERMB- 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 ↗
- License · 2003-03-27EBERHARD VON AUENMULLER: Rental 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 · 2015-04-29EBERHARD VON AUENMULLER: Rental 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 $2.1M
- PermitElectrical
- PermitPlumbing
- PermitElectrical
- L&I violationPERMB- INSTALL HVAC SYS
- L&I violationPERMB- WORK NOT SAME AS PERMIT
- PermitElectrical
- PermitMechanical
- PermitPlumbing
- PermitZoning
- PermitMajor alteration
- PermitDemolition
- Deed / saleDeed / sale $1.3M
- LicenseEBERHARD VON AUENMULLER: Rental landlord or residential registration marked inactive
- PermitAlteration
- LicenseEBERHARD VON AUENMULLER: Rental 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
$15,521/year estimated property tax
2026 taxable assessment $1,108,800 × 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 $2,196,500. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 0811667002026 OPA taxes $1,108,800 of $2,100,000 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.
$1,108,800 taxable basis
$2,100,000 scenario basis
- Legal basis or program
- Approval or expiration date
- Treatment after a sale
- Current Tax Center balance
Show the assessment math
2026: ($2,100,000 assessed − $991,200 exempt) × 1.3998% ≈ $15,521/year
Full-assessment scenario: $2,100,000 × 1.3998% ≈ $29,396/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
300 block of S 17th St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 319 S 17th St · 323 S 17th St
L&I license dates · data through Jul 21, 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 21, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
Rental · Initial issue date Mar 27, 2003 · Terminal license date Apr 29, 2015
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 16 dated rows
- Recorded transfer$2.1M transfer
2023
- PermitElectrical
Permit 780429 · COMPLETED
REWIRE BATHROOM TO INCLUDE RECESSED LIGHTING AND GFCI OUTLETS(FISHING) CONNECTING TO EXISTING 100AMP SERVICES PER 2008 NEC (SFD)
- PermitPlumbing
Permit 779071 · COMPLETED
EZ PLUMBING PERMIT - INSTALL 1 SHOWER 1 TUB 1 DOUBLE VANITY 1 TOILET AS PER THE ATTCHED STANDARD
- PermitElectrical
Permit 697972 · COMPLETED
BY FISHING ONLY 4 RECEPT OUTLETS IN MUD ROOM LIGHT & SWITCHE, OUTLET FOR WASHER & DRYER, 2 EXTERIOR LIGHS AND UPGRAD 200AMP PANLE CONNECT TO EXISTING 200AMP SERVICE AS PER NEC 2008 (CC DISTRICT)
- ViolationPERMB- INSTALL HVAC SYS
Case 683029 · Violation 3938049 · Code A-301.1/46 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationPERMB- WORK NOT SAME AS PERMIT
Case 683029 · Violation 3938050 · Code A-302.10/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- PermitElectrical
Permit 685216 · COMPLETED
SUPPLY POWER FOR HVAC (4) EQUIPMENT PER 2008 NEC (SFD)CC DISTRICT
- PermitMechanical
Permit 683029 · COMPLETED
INSTALL (1) HVAC SYSTEM WITH DUCTWORK. (SFD)
- PermitPlumbing
Permit 683050 · COMPLETED
REPLACE NEW TANKLESS WATER HEATER & 2-LAUNDRY TUBS THE INSTALLATION WILL COMPLY WITH THE PHILADEPHIA PLUBMING CODE 2004
- PermitZoning
Permit 672939 · COMPLETED
TO REDUCE THE USE OF THE ENTIRE STRUCTURE TO A SINGLE FAMILY DWELLING FOR THE REMOVAL BY HAND OF A ONE STORY REAR WOOD ADDITION AND A ONE STORY REAR MASONRY ADDITION; FOR THE REMOVAL BY HAND OF SECOND FLOOR REAR WOOD DECK. SIZE AND LOCATION AS SHOWN ON SUBMITTED PLAN.
- PermitMajor alteration
Permit 672944 · COMPLETED
FOR THE REMOVAL BY HAND OF A ONE STORY REAR WOOD ADDITION AND A ONE STORY REAR MASONRY ADDITION; FOR THE REMOVAL BY HAND OF SECOND FLOOR REAR WOOD DECK; FOR THE REPLACEMENT OF WINDOWS AND DOORS PER HISTORICAL COMMISSION APPROVAL AND SUBMITTED PLANS.
- PermitDemolition
Permit 668540 · COMPLETED
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$1.3M transfer
2016
- License terminal eventEBERHARD VON AUENMULLER: Rental landlord or residential registration marked inactive
License 254070 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- PermitAlteration
Permit 306584 · COMPLETED
REMOVE AND REPLACE (7) WINDOWS ON FRONT SIDE OF BLDG TO BE MONITORED BY THE HISTORICAL COMMISION.
- License issue eventEBERHARD VON AUENMULLER: Rental landlord or residential registration initially issued
License 254070 · 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 22, 2026, 7:24 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)