2026 assessment
$1.5M
OPA value, not a listing price
House report
518 S 21st St
4 bd4 ba2,432 sqftRSA5built 2020
Property at a glanceHouse
Owner-occupancy signal
ZIP 19146 area
Graduate Hospital · Point Breeze
500 block of S 21st 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$597K 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$597K 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$597K 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$841K 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$869K 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$869K 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$869K 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$223K 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$223K 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$223K 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$1.5M 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 · 2027$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 ↗
- Teardown · 2024DemolishedThis 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 ↗
- Deed / sale · 2025Deed / sale $1.5MA 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 · 2013-11-05PlumbingThis 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 · 2022-08-10New construction, addition, GFA changeThis 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 · 2022-08-24AlterationsThis 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 · 2022-09-12Full DemolitionThis 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 · 2022-09-22Minor DemolitionThis 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 · 2023-01-12New ConstructionThis 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 · 2023-03-08New ConstructionThis 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 · 2023-03-15New Construction or AdditionsThis 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 · 2023-05-19New ConstructionThis 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 · 2023-06-08New ConstructionThis 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 · 2022-08-16ZBA 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 19146 (Graduate Hospital · Point Breeze) medianAssessmentDeed / saleTeardownAppealPermit
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 record13 events · exact dates, newest first
- Deed / saleDeed / sale $1.5M
- TeardownDemolished
- PermitNew Construction
- PermitNew Construction
- PermitNew Construction or Additions
- PermitNew Construction
- PermitNew Construction
- PermitMinor Demolition
- PermitFull Demolition
- PermitAlterations
- AppealZBA Permit Denial - Variance
- PermitNew construction, addition, GFA change
- PermitPlumbing
Flags: material assessment exemption; legal basis and term unverified · $235 recorded in the June 2022 delinquency snapshot; verify current balance · 1 zoning/board appeal on record. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$5,179/year estimated property tax
2026 taxable assessment $370,000 × 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 $1,576,600. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 3030938002026 OPA taxes $370,000 of $1,500,000 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.
See the assessment math →Historical delinquency sources Record found
$234.97 was recorded for this parcel in Philadelphia's June 2022 delinquency snapshot for 2021. That amount may have been paid, reduced, or increased since; it is not a current payoff figure.
$564.53 principal-$490.72 interest$33.87 penalty$127.29 other charges
The snapshot’s 2022 context used $869,200 total assessment, $354,600 taxable, and $514,600 exempt/abated. Those historical fields can differ from today’s OPA exemption status.
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.
$370,000 taxable basis
Difference to verify+$15,818/year
$1,500,000 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: ($1,500,000 assessed − $1,130,000 exempt) × 1.3998% ≈ $5,179/year
Full-assessment scenario: $1,500,000 × 1.3998% ≈ $20,997/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.
Bedrooms
4
Bathrooms
4
Interior
2,432 sqft
livable area
Lot
810 sqft
Basement
Full, finished
city code A
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
Newer construction
city code 1
Newer construction
Interior condition
Newer construction
city code 1
Newer construction
Zoning
RSA5
city zoning code
Zoning appeals
1
Completed · Granted · 2022
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
500 block of S 21st St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 516 S 21st St · 514 S 21st St
L&I licenses checked through Jul 28, 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 12 dated rows
- Recorded transfer$1.5M transfer
2025
- PermitNew Construction
Permit EP-2023-005363 · Completed
Wire House according to the plan and the electrical code, Wire all outlets switches GFCI'S, lights and Bathroom exhaust fans Run 200 amp service to house in accordance with the electrical code,
- PermitNew Construction
Permit MP-2022-006142 · Completed
Mechanical / Fuel Gas Permit for combo RP-2022-010392
- PermitNew Construction or Additions
Permit PP-2023-002007 · Completed
INSTALL MD, CT, FAI & 1.5" WDP & 21 FIXTURES TO INCLUDE ..vents, drains, water lines, 5 toilets, 5 lavs, 5 tubs/showers, 1 kitchen sink, 1 hot water heater, 1 hose bib, 1 ejector pump, 1 sump pump, 1 backflow preventer,
- PermitNew Construction
Permit FP-2023-000249 · Completed
FOR THE INSTALLATION OF A NFPA 13R FIRE SUPPRESSION SYSTEM SERVICED BY A TWO INCH FIRE SERVICE LINE WITH A BACKFLOW PREVENTER ASSEMBLY FOR A SINGLE FAMILY DWELLING. ALL WORK TO BE DONE PER APPROVED PLANS. FIRE SUPPRESSION SYSTEM TO BE INSTALLED IN ACCORDANCE WITH NFPA 13R STANDARDS.
- PermitNew Construction
Permit RP-2022-010392 · Completed
ERECTION OF AN ATTACHED STRUCTURE FOR USE AS SINGLE FAMILY HOUSEHOLD LIVING. SHEETING AND SHORING AS PRESCRIBED IN GEO TECH REPORT. SEPARATE PERMITS REQUIRED FOR SPRINKLER (13R) WORK. (UNDERPINNNING IS NOT PART OF THIS PERMIT). ENERGY CODE COMPLIANCE IN ACCORDANCE WITH 2018 IECC. PRIOR TO ISSUANCE OF C.O SUBMITTAL OF AIR BARRIER CHECKLIST AND ENVELOPE TESTING CERTIFICATE IS REQUIRED. BOTH TO BE COMPLETED BY AN APPROVED PARTY.
- PermitMinor Demolition
Permit DP-2022-001275 · Completed
FOR THE COMPLETE DEMOLITION OF THE EXISTING THREE (3) STORY ATTACHED MASONRY STRUCTURE. DEMOLITION TO BE DONE BY HAND AND WITH HAND TOOLS ONLY. ALL PERMITTED DEMOLITION ACTIVITY TO BE IN ACCORDANCE WITH APPROVED SITE SAFETY DEMOLITION PLAN & SUCH PLAN TO BE MAINTAINED ON SITE AT ALL TIMES IN ACCORDANCE WITH PHILADELPHIA ADMINISTRATIVE CODE. ANY DEVIATION WILL REQUIRE AN AMENDED BUILDING PERMIT. PEDESTRIAN PROTECTION TO BE IN PLACE PRIOR TO START OF WORK AND TO BE MAINTAINED DURING ALL DEMOLITION ACTIVITIES. A COVERED WALKWAY OR SIDEWALK CLOSURE SHALL BE REQUIRED WITHIN EIGHT (8) FEET OF BUILDING FACADES IN ACCORDANCE WITH SECTION 3306 OF THE IBC. SEPARATE STREETS DEPARTMENT APPROVAL REQUIRED FOR RIGHT-OF-WAY ENCROACHMENT OR CLOSURE. IF SITE CONDITIONS VARY, CONTACT DESIGN PROFESSIONAL PRIOR TO THE START OF ANY WORK.
- PermitFull Demolition
Permit ZP-2022-010223 · Completed
. FOR THE COMPLETE DEMOLITION OF ALL EXISTING STRUCTURES ON LOT
- PermitAlterations
Permit PP-2022-012381 · Expired
SEAL LATERAL
- AppealZBA Permit Denial - Variance
Appeal ZP-2022-001084 · Completed · Granted
Related permit ZP-2022-001084 · PERMIT FOR full demolition of existing structure on the lot and for the erection of an attached structure with roof deck to use as single family household living with one accessory off-street surface parking space (size and location s shown
- PermitNew construction, addition, GFA change
Permit ZP-2022-001084 · Issued
complete demolition of existing structure on the lot and for the erection of an attached structure with roof deck to use as single family household living with one accessory off street parking space (size and location as shown on the plan).
- PermitPlumbing
Permit 504455 · COMPLETED
REPAIR OR REPLACE HOUSE TRAP PA20133091389
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 29, 2026, 8:02 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)