2026 assessment
$850K
OPA value, not a listing price
House report
815 S Darien St
3 bd · 2 ba · 3 stories · 2,598 sqft · RSA5 · built 2007
Property at a glanceHouse
Owner-occupancy signal
2027 published assessment
$945K
Future roll, not the current tax bill
Location
800 block of S Darien St
ZIP 19147
Neighborhood area
Queen Village · East Passyunk
Approximate · based on ZIP 19147
Assessment and dated record history
Every fetched annual City assessment for this house, compared with its block and ZIP. The chart preserves property assessment, block median and range, ZIP median, and each dated assessment, deed, L&I, permit, and inspection event.
Assessed value
$850,000
2026 billed-year assessment · 2027: $944,900 · built 2007
Price / sq ft
$364
block $408 · below block
Assessment change
+66%
+5%/yr since 2016 · 2027 +11% vs 2026
Est. tax bill / yr
$10,499
1.24% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Times sold
3
Assessment vs. the block and ZIP · every dated City record marked on the line
- OPA assessment · 2016$571K 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$571K 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$571K 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$749K 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$811K 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$476K 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$476K 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$855K 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$855K 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$850K 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$850K 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$945K 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 · 2011Deed / sale $625KA 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 · 2007-07-17ZoningThis 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 · 2007-07-17New 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 · 2007-12-06PlumbingThis 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 · 2007-12-14PlumbingThis 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 · 2008-04-04SuppressionThis permit category usually covers fire-suppression systems or related life-safety 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 · 2008-07-17MechanicalThis 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 · 2010-05-25ElectricalThis 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 · 2018-04-04Addition 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 · 2018-04-09ElectricalThis 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 · 2009-10-16TEMP FENCE IN PLACE 10 CDA 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 ↗
- Inspection · 2009-10-16BP_BLDGA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- L&I violation · 2010-04-19PERME- INST/REPL/REPAIR WIRE (Electrical permit required for wiring installation, replacement, or repair)Electrical permit required for wiring installation, replacement, or repairHow L&I violations and orders work ↗
- L&I violation · 2010-04-19PENALTY- NO ELEC PERM INFOA 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 ↗
- Inspection · 2006-11-17CI INSPA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2008-08-22CI INSPA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2009-10-09CI INSPA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2010-02-25BP_BLDGA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2010-04-16BP_BLDGA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2010-04-16BP_BLDGA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2010-09-01BP_BLDGA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2011-01-13BP_BLDGA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- License · 2006-12-16807 MILDRED STREET LP: Vacant Residential Property / Lot 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 · 2012-12-22807 MILDRED STREET LP: Vacant Residential Property / Lot 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 ↗
- Certification · 2026-01-05Sprinkler CertificationA filed inspection or certification for a regulated building system or component. Check the result, expiration date, and latest filing before treating it as current.What Philadelphia inspections check ↗
Property assessmentBlock median & rangeZIP 19147 (Queen Village · East Passyunk) medianAssessmentDeed / saleL&I violationPermitInspectionLicenseCertification
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 record25 events · exact dates, newest first
- CertificationSprinkler Certification
- PermitElectrical
- PermitAddition and/or Alteration
- License807 MILDRED STREET LP: Vacant Residential Property / Lot landlord or residential registration marked inactive
- InspectionBP_BLDG
- Deed / saleDeed / sale $625K
- InspectionBP_BLDG
- PermitElectrical
- L&I violationPERME- INST/REPL/REPAIR WIRE (Electrical permit required for wiring installation, replacement, or repair)
- L&I violationPENALTY- NO ELEC PERM INFO
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- L&I violationTEMP FENCE IN PLACE 10 CD
- InspectionBP_BLDG
- InspectionCI INSP
- InspectionCI INSP
- PermitMechanical
- PermitSuppression
- PermitPlumbing
- PermitPlumbing
- PermitZoning
- PermitNew construction
- License807 MILDRED STREET LP: Vacant Residential Property / Lot landlord or residential registration initially issued
- InspectionCI INSP
The short read
New constructionnew construction appears in a 2008 permit, followed by a recorded transfer of $625K in 2011.
A selected summary of the main sequence. The chart above and source ledger below contain every fetched dated row.
Browse 25 dated records
Deeds, permits, inspections, licenses, violations, certifications, and appeals.
Open the source ledger 25 dated rows
- CertificationSprinkler Certification
Certification BC-2026-000888 · Certified
Expires 2027-01-05
- PermitElectrical
Permit 865548 · COMPLETED
REWIRE NEW KITCHEN AND INSTALL 40-RECESSED LIGHTS ONLY ON AN EXISTING 200AMP SERVICE AS PER 2008 NEC (SOUTH DISTRICT)
- PermitAddition and/or Alteration
Permit 864538 · Issued
Interior Alterations throughout, to include drywall and sheetrock, remodel bathroom and kitchen, new windows and doors in existing opening. Applicant agrees to limit the construction to comply with EZ Permit Standard for Interior Alterations, dated January 2011. Deviation from the Standard will result in revocation of this permit and imposition of further penalties. NOTE: CONTRACTOR IS LISTED AS A "SOLE PROPRIETOR" AND HAS NO EMPLOYEES AND/OR WORKERS COMPENSATION INSURANCE - ALL SUBCONTRACTORS REQUIRE SEPARATE LICENSES AND INSURANCE SEPARATE PERMITS REQUIRED FOR PLUMBING, ELECTRICAL AND MECHANICAL WORK. NO OTHER WORK ALLOWED UNDER THIS PERMIT.
- License terminal event807 MILDRED STREET LP: Vacant Residential Property / Lot landlord or residential registration marked inactive
License 394615 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- InvestigationBP_BLDG
Case 218041 · PASSED
The cited inspection visit was marked passed.
- Recorded transfer$625K transfer
2011
- InvestigationBP_BLDG
Case 231902 · PASSED
The cited inspection visit was marked passed.
- PermitElectrical
Permit 277726 · COMPLETED
NEW CONSTRUCTION: INSTALL NEW 200 AMP SERVICE, (60)HIGH-HATS, (60)RECEPTACLES, (8)GFCI RECEPTACLES, (20)SWITCHES, (2)HVAC UNITS, HARD WIRED SMOKE DETECTORS.... IN ACCORDANCE WITH 2008 NEC
- ViolationPERME- INST/REPL/REPAIR WIRE (Electrical permit required for wiring installation, replacement, or repair)
Case 231902 · Violation 1652934 · Code A-301.1/51 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationPENALTY- NO ELEC PERM INFO
Case 231902 · Violation 1652935 · Code A-901.13/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 231902 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationBP_BLDG
Case 218041 · PASSED
The cited inspection visit was marked passed.
- InvestigationBP_BLDG
Case 218041 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationTEMP FENCE IN PLACE 10 CD
Case 218041 · Violation 1653090 · Code PM-302.6/7 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 218041 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationCI INSP
Case 90870 · PASSED
The cited inspection visit was marked passed.
- InvestigationCI INSP
Case 90870 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitMechanical
Permit 165135 · COMPLETED
INSTALL (1) GIBSON WARM AIR FURNANCE 60,000 BTU'S 90% & AIR CONDTIONER. INCLUDING DUCT-WORK,CONDENSER PLACED IN THE YARD.
- PermitSuppression
Permit 129809 · COMPLETED
INSTALL FIRE SPRINKLER SYSTEM
- PermitPlumbing
Permit 121639 · COMPLETED
INTERIOR WORK ONLY, 4 WATER CLOSETS, 5 LAVYS, 3 TUBS, 1 SHOWER, 1 LAUNDRY, 1 KITCHEN SINK, SUMP PUMP AND WATER HEATER
- PermitPlumbing
Permit 120166 · COMPLETED
NEW 3/4" WATER DISTRIBUTION SERVICE FRONT RAIN LEADER CURB TRAP, LATER AND INSTALLATION OF STORMWATER DRAINAGE PIPING TO SITE
- PermitZoning
Permit 84206 · COMPLETED
PARTIAL DEMO OF STRUCTURE FROM 40' TO 36' WIDE
- PermitNew construction
Permit 81360 · COMPLETED
NEW CONSTRUCTION OF FOUR STORY SINGLE FAMILY DWELLING W/ONE INT. PARKING SPACE AND 4TH FLOOR FRONT ROOF DECK AS PER PLANS. SEPARATE PERMITS REQUIRED FOR PLUMBING AND ELECTRICAL.
- License issue event807 MILDRED STREET LP: Vacant Residential Property / Lot landlord or residential registration initially issued
License 394615 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- InvestigationCI INSP
Case 90870 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
What this record suggests
The City file documents 9 permits touching kitchen work, bathroom work, drywall / interior finishing, electrical work. 9 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
Informational only — not investment advice or a consumer report (FCRA).
Preparing this comparison.
Compare nearby property records
The subject property stays pinned above and is excluded from this comparable list. Repeated condominium addresses include their OPA parcel number.
Property details and source records
The visual history and live comparison stay above. Use these focused views for tax, ownership, nearby-block, and supporting City records.
Property tax
The estimate, live balance, and back-tax record are different.
BlockReport can calculate the annual tax from the City’s taxable assessment. Payments, credits, interest, and a current amount due live separately in Philadelphia Tax Center.
2026 taxable assessment $750,000 × 1.3998%. This is an estimate, not a bill or account balance.
OPA also publishes a 2027 assessment of $944,900; it is not the 2026 billed-year value.
A Tax Center balance is net of bills, payments, credits, interest, and adjustments. A credit or an amount due is not automatically “back taxes.”
OPA 0222732552026 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
3
Bathrooms
2
Stories
3
Interior
2,598 sqft
livable area
Lot
966 sqft
Basement
Full
city code D
Heat
0
city code
Central air
Yes
Garage
1 space
Exterior condition
Above average
city code 3
Above averageBelow average
Interior condition
Above average
city code 3
Above averageBelow average
Quality grade
A
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
800 block of S Darien St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 813 S Darien St · 817 S Darien St
L&I license dates · data through Jul 25, 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 25, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
807 MILDRED STREET LPInactive
Vacant Residential Property / Lot · Initial issue date Dec 16, 2006 · Terminal license date Dec 22, 2012
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.
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 25, 2026, 11:42 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)