2026 assessment
$759K
OPA value, not a listing price
Multi-family report
1128 Mount Vernon St
6 bd3 ba3 stories2,610 sqftRSA5built 1915
Property at a glanceApartment building
Owner-occupancy signal
ZIP 19123 area
Northern Liberties · Callowhill
1100 block of Mount Vernon St
Assessment and City record timeline
Published City assessments for this building 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$366K 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$366K 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$366K 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$410K 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$423K 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$423K 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$423K 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$755K 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$755K 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$759K 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$759K 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$689K 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 $366KA 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 · 2008-10-16AlterationThis 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 · 2022-11-16Change of UseThis 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 · 2023-07-25Certificate of Occupancy (CO) (may inclu…This 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 · 2025-11-05Change of UseThis 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 ↗
- License · 2018-08-13LEE T TERESCHUK: 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 · 2004-03-29NICOLAS G TERESCHUK: 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 · 2017-04-29NICOLAS G TERESCHUK: 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 ↗
- Appeal · 2022-12-14ZBA Permit Denial - VarianceA challenge or request reviewed through a City appeals process. Filing an appeal does not show who prevailed; read the decision, conditions, and related permit or violation.How Philadelphia L&I appeals work ↗
- Appeal · 2025-11-26ZBA Permit Denial - VarianceA challenge or request reviewed through a City appeals process. Filing an appeal does not show who prevailed; read the decision, conditions, and related permit or violation.How Philadelphia L&I appeals work ↗
Property assessmentBlock median & rangeZIP 19123 (Northern Liberties · Callowhill) medianAssessmentDeed / saleAppealPermitLicense
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 record10 events · exact dates, newest first
- AppealZBA Permit Denial - Variance
- PermitChange of Use
- PermitCertificate of Occupancy (CO) (may inclu…
- AppealZBA Permit Denial - Variance
- PermitChange of Use
- LicenseLEE T TERESCHUK: Rental landlord or residential registration initially issued
- LicenseNICOLAS G TERESCHUK: Rental landlord or residential registration marked inactive
- Deed / saleDeed / sale $366K
- PermitAlteration
- LicenseNICOLAS G TERESCHUK: Rental landlord or residential registration initially issued
Flags: active rental license · 2 zoning/board appeals on record. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$9,225/year estimated property tax
2026 taxable assessment $659,000 × 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 $688,800. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 1412654002026 OPA removes $100,000 from the taxable assessment through the owner-occupant exemption.
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 property, on paper
OPA physical field record.
Bedrooms
6
Bathrooms
3
Stories
3
Interior
2,610 sqft
livable area
Lot
1,280 sqft
Basement
Full, finished
city code A
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
New / rehabbed
city code 2
New / rehabbed
Interior condition
New / rehabbed
city code 2
New / rehabbed
Quality grade
B-
assessor's grade
ABCDE
Zoning
RSA5
city zoning code
Zoning appeals
2
Completed · Granted with conditions · 2025
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
1100 block of Mount Vernon St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1126 Mount Vernon St · 1130 Mount Vernon St
L&I license dates · data through Jul 23, 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 23, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
LEE T TERESCHUKActive
Rental · Initial issue date Aug 13, 2018 · Filed expiration Aug 12, 2026
NICOLAS G TERESCHUKInactive
Rental · Initial issue date Mar 29, 2004 · Terminal license date Apr 29, 2017
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 10 dated rows
- AppealZBA Permit Denial - Variance
Appeal ZP-2025-005766 · Completed · Granted with conditions
Related permit ZP-2025-005766 · PERMIT FOR THE PROPOSED USE *VISITOR ACCOMMODATIONS* IN AN EXISTING ATTACHED STRUCTURE
- PermitChange of Use
Permit ZP-2025-005766 · Issued
Visitor Accommodations
- PermitCertificate of Occupancy (CO) (may inclu…
Permit AP-2023-005750 · Completed
CO ONLY FOR A VISITOR ACCOMODATIONS AT BI-LEVEL UPPER UNIT IN THE SAME BUILDING AS PER PROVISO WITH SINGLE FAMILY HOUSEHOLD LIVING AT FIRST FLOOR.
- AppealZBA Permit Denial - Variance
Appeal ZP-2022-003860 · Completed · Granted with conditions
Related permit ZP-2022-003860 · PERMIT FOR A VISITOR ACCOMODATIONS AT SECOND FLOOR IN THE SAME BUILDING WITH SINGLE FAMILY HOUSEHOLD LIVING AT FIRST FLOOR. The permit for the above location cannot be issued because the proposal does not comply with the following provisio
- PermitChange of Use
Permit ZP-2022-003860 · Issued
Visitor Accommodations; Residential - Household Living - Single-Family
- License issue eventLEE T TERESCHUK: Rental landlord or residential registration initially issued
License 785999 · Active
License event. Registration does not prove present operation or storefront occupancy.
- License terminal eventNICOLAS G TERESCHUK: Rental landlord or residential registration marked inactive
License 255862 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$366K transfer
2015
- PermitAlteration
Permit 183100 · COMPLETED
SINGLE FAMILY DWELLING - REMOVE EXISTING #90 AND INSTALL NEW SHINGLES.
- License issue eventNICOLAS G TERESCHUK: Rental landlord or residential registration initially issued
License 255862 · 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 23, 2026, 9:36 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)