2026 assessment
$1.4M
OPA value, not a listing price
House report
521 Delancey St
Research this property with Analyst →3 bd3 ba2,625 sqftRSA5built 1800
Property at a glanceHouse
Owner-occupancy signal
ZIP 19106 area
Old City · Society Hill
500 block of Delancey 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$918K 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$918K 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$918K 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$1.1M 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 · 2020$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 · 2021$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 · 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$1.3M 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 · 2024$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 · 2025$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 ↗
- OPA assessment · 2026$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 ↗
- OPA assessment · 2027$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 ↗
- Deed / sale · 2015Deed / 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 ↗
- Permit · 2013-08-29ZoningThis 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 · 2013-08-29Major 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 · 2013-11-07PlumbingThis 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 · 2013-11-12ElectricalThis 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 · 2016-02-17Addition 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 · 2016-04-26Major 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 · 2016-05-10PlumbingThis 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 · 2016-05-17ElectricalThis 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 ↗
Property assessmentBlock median & rangeZIP 19106 (Old City · Society Hill) 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 record9 events · exact dates, newest first
- PermitElectrical
- PermitPlumbing
- PermitMajor alteration
- PermitAddition and/or Alteration
- Deed / saleDeed / sale $1.3M
- PermitElectrical
- PermitPlumbing
- PermitZoning
- PermitMajor alteration
Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$20,217/year estimated property tax
2026 taxable assessment $1,444,300 × 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 $1,484,300. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 0511640202026 taxable assessment equals the full assessed value.
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
3
Bathrooms
3
Interior
2,625 sqft
livable area
Lot
1,860 sqft
Basement
Partial
city code H
Heat
Hot water / radiators
city code B
Central air
Yes
Exterior condition
Above average
city code 3
Above averageBelow average
Interior condition
Above average
city code 3
Above averageBelow average
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
500 block of Delancey St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 519 Delancey St · 523 Delancey 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
- PermitElectrical
Permit 692699 · COMPLETED
RUN 6-20AMP & CIRCUIT TO KITCHEN FOR COUNTER TOP OUTLETS AND SMALL APPLIANCE CIRCUITS, 1-20AMP CIRCUIT FOR BATH FOR GFI,REMOVE 100AMP SUB PANEL AND REPLACE WITH 100AMP 30 SLOT SUB PANEL AS PER 2008 NEC (CC DISTRICT)
- PermitPlumbing
Permit 690941 · COMPLETED
REPLACE 2-SINKS WITH DRAINS AND SUPPLIES IN THE KITCHEN AND REPLACE DRAIN AND SUPPLIES FOR WATER CLOSET,LAV,SHOWER,TUB AND WASHING MACHINE. THE INSTALLATION WILL COMPLY WITH THE PHILADEPHIA PLUBMING CODE 2004
- PermitMajor alteration
Permit 682507 · COMPLETED
REPLACEMENT OF WINDOWS IN MASTER BATH AND ONE NEW WINDOW
- PermitAddition and/or Alteration
Permit 665766 · Expired
INT MOD TO THE KITCHEN/DINING AREAS OF FIRST AND MASTER BATH ON THE THIRD FLOOR. RELOCATE DOOR TO YARD IN THE KITCHEN AT SIDE/REAR OF PROPERTY.
- Recorded transfer$1.3M transfer
2015
- PermitElectrical
Permit 505410 · COMPLETED
INSTALL WINRING FOR A 1ST FLOOR BATHROOM, ADDITION, GFI, EXHAUST, FAN, 3 LIGHTS, 3 SWITCHES, 1-20AMP CKT AS PER 2008 NEC (CC DISTRICT)
- PermitPlumbing
Permit 504750 · COMPLETED
INSTALL DRAIN & WATER LINES FOR NEW SHOWER STALL, TOILET & SINK, INSTALL TOILET, SINK & SHOWER FAUCET & PAN (SFD)
- PermitZoning
Permit 491216 · COMPLETED
FOR THE ERECTION OF A ONE STORY FIRST FLOOR ADDITION SIZE AND LOCATION AS SHOWN ON SUBMITTED PLAN.
- PermitMajor alteration
Permit 487353 · COMPLETED
FOR THE ERECTION OF A ONE STORY FIRST FLOOR ADDITION PER SUBMITTED PLAN. SEPARATE PERMITS REQUIRED FOR ELECTRIC; PLUMBING AND MECHANICAL.
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, 1:57 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)