2026 assessment
$1.6M
OPA value, not a listing price
Apartment building report
340 S 21st St
4 stories3,500 sqftCMX1built 1875
Property at a glanceApartments
Individual owner on record
2027 published assessment
$1.4M
Future roll, not the current tax bill
Location
300 block of S 21st St
ZIP 19103
Neighborhood area
Rittenhouse · Logan Square
Approximate · based on ZIP 19103
Assessment and City record timeline
The line tracks this property’s published City assessment. Markers show deeds, permits, inspections, licenses, violations, certifications, and appeals on their recorded dates. Select one to read the filing.
Assessments are tax-roll values, not sale prices or appraisals. OPA has published a 2027 assessment of $1,357,900. It is not yet the billed-year tax basis.
- OPA assessment · 2022$1.2M 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 ↗
- OPA assessment · 2023$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 · 2024$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 · 2025$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 · 2026$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 · 2027$1.4M 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 ↗
- Permit · 2020-09-03Interior Non-Load-Bearing Wall Demo.This 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 · 2020-10-14Change 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 · 2021-03-23Addition 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 ↗
- Permit · 2021-05-10Rough-InThis 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 · 2021-06-25Addition and/or AlterationsThis 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 · 2021-06-25Addition and/or AlterationsThis 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 · 2021-08-26Addition 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 ↗
- Permit · 2021-12-20AlterationsThis 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 ↗
- Appeal · 2020-12-21ZBA 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 assessmentAssessmentAppealPermit
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 record9 events · exact dates, newest first
- PermitAlterations
- PermitAddition and/or Alteration
- PermitAddition and/or Alterations
- PermitAddition and/or Alterations
- PermitRough-In
- PermitAddition and/or Alteration
- AppealZBA Permit Denial - Variance
- PermitChange of Use
- PermitInterior Non-Load-Bearing Wall Demo.
Verify the public record
Property tax
$17,422/year estimated property tax
2026 taxable assessment $1,244,605 × 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 $1,357,900. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 8810009972026 OPA taxes $1,244,605 of $1,607,200 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.”
Building report
Apartment building
Apartments, recorded in the City's apartments category. The public record and owner trail follow.
What it is
Apartments
Off Bld N/Pkg N/Com Mason
Owner
Individual owner on record
Individual name redacted
$ / sq ft
$388
above the $147 median for 2,826 apartments parcels citywide
Interior area
3,500 sqft
Lot size
1,296 sqft
Stories
4
Built
1875
Zoning
CMX1
Block context
300 block of S 21st St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 338 S 21st St · 336 S 21st St
L&I licenses checked through Jul 27, 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 9 dated rows
- PermitAlterations
Permit PP-2021-006318 · Completed
Alterations: Interior/exterior plumbing. All proposed work to be done in accordance with Philadelphia Plumbing Code 2018.
- PermitAddition and/or Alteration
Permit EP-2021-005575 · Completed
Install 600 amp service. Wire 6 Apartments and Common areas to 2017 NEC. Wiring outlets, Switches, Lighting, Smokes. Wiring up Fire Alarm System as per 2016 NFPA 72.
- PermitAddition and/or Alterations
Permit FP-2021-001374 · Completed
FOR THE INSTALLATION OF A TWO (2) INCH FIRE SERVICE LINE WITH A TWO-INCH (2") BACKFLOW PREVENTER, AUTOMATIC FIRE SUPPRESSION SYSTEM AS PER NFPA 13R. ALL WORK SHALL BE DONE IN ACCORDANCE WITH APPROVED PLANS/HYDRAULIC CALCULATIONS.
- PermitAddition and/or Alterations
Permit MP-2021-003529 · Completed
FOR MECHANICAL ALTERATIONS TO EXISTING MULTI-FAMILY STRUCTURE, TO INCLUDE THE INSTALLATION OF THREE (3) AHU'S AND THREE (3) HEAT PUMP SYSTEMS WITH ASSOCIATED REGISTERS/DIFFUSERS AND DUCTWORK, AS PER APPROVED PLANS.
- PermitRough-In
Permit PP-2021-006320 · Completed
EXTERIOR PERMITS ARE REQUIRED Rough-in for 6 apartments - Permit Application PP-2021-006318 Basement - One 3 piece bath, 1 kitchen sink, 1 washer/dryer, 1 floor drain; 1 hot water heater 1st Floor - Two 3 piece baths; 2 kitchen sinks; 2 washer/dryers; 2 hot water heaters 2nd Floor - Two 3 piece baths; 1 kitchen sink; 1 washer/dryer; 1 hot water heater 3rd Floor - Two 3 piece baths; 1 kitchen sinks; 1 washer/dryer; 1 hot water heater 4th Floor - One 3 piece bath; 1 kitchen sink; 1 washer/dryer; 1 hot water heater
- PermitAddition and/or Alteration
Permit CP-2020-006447 · Completed
FOR LEVEL 3 ALTERATIONS TO CREATE SIX DWELLING UNITS IN EXISTING FOUR STORY BUILDING. ALL WORK TO BE DONE IN ACCORDANCE WITH APPROVED PLANS. BUILDING TO BE SPRINKLERED IN ACCORDANCE WITH NFPA 13R. SEPARATE PERMITS REQUIRED FOR ANY MEP/FS WORK.
- AppealZBA Permit Denial - Variance
Appeal 40066 · In Process · Complete
Related permit 1043762 · PERMIT FOR SIX (6) FAMILY DWELLING (MULTI-FAMILY DWELLING) IN AN EXISTING STRUCTURE. AP 1043762
- PermitChange of Use
Permit 1043762 · Completed
Residential - Household Living - Multi-Family
- PermitInterior Non-Load-Bearing Wall Demo.
Permit GM-2020-001656 · Completed
EZ INTERIOR DEMOLITION- For the interior demolition on non-bearing partition wall and ceilings as per attached standard. Deviations from these standards require submission of construction and site plans. separate electrical permit required if proposing to demo electrical
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, 3:52 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)