2026 assessment
$990K
OPA value, not a listing price
House report
429 N 20th St
4 bd3 ba3 stories2,316 sqftRMX3built 1900
Property at a glanceHouse
Owner-occupancy signal
ZIP 19130 area
Fairmount · Spring Garden
400 block of N 20th 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$474K 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$474K 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$474K 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$573K 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$592K 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$592K 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$592K 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$603K 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$603K 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$990K 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$990K 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$969K 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 · 2023Deed / sale $475KA 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 ↗
- Deed / sale · 2024Deed / sale $990KA 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 · 2023-06-26Interior 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 · 2023-06-30New 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 · 2023-09-06Addition 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 · 2023-11-02ExcavationThis 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 · 2023-12-14AlterationsThis 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 · 2024-01-02Addition 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 · 2024-01-11Addition 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 · 2024-01-25AlterationsThis 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 ↗
- L&I violation · 2024-01-16WORK NOT ACCORDING TO PLANSA 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 ↗
- L&I violation · 2024-01-16ARCHITECT/ENGINEER SERVICESA 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 · 2024-01-16L&I investigationA 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 · 2024-02-16L&I investigationA 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 ↗
Property assessmentBlock median & rangeZIP 19130 (Fairmount · Spring Garden) medianAssessmentDeed / saleL&I violationPermitInspection
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 record14 events · exact dates, newest first
- InspectionL&I investigation
- PermitAlterations
- L&I violationWORK NOT ACCORDING TO PLANS
- L&I violationARCHITECT/ENGINEER SERVICES
- InspectionL&I investigation
- PermitAddition and/or Alteration
- PermitAddition and/or Alterations
- Deed / saleDeed / sale $990K
- PermitAlterations
- PermitExcavation
- PermitAddition and/or Alteration
- PermitNew construction, addition, GFA change
- PermitInterior Non-Load-Bearing Wall Demo.
- Deed / saleDeed / sale $475K
Flags: material assessment exemption; legal basis and term unverified. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$8,441/year estimated property tax
2026 taxable assessment $603,000 × 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 $969,100. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 0841392002026 OPA taxes $603,000 of $990,000 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.”
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.
$603,000 taxable basis
Difference to verify+$5,417/year
$990,000 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: ($990,000 assessed − $387,000 exempt) × 1.3998% ≈ $8,441/year
Full-assessment scenario: $990,000 × 1.3998% ≈ $13,858/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.
Where the record looks off
Conflicts in City paperwork. Flags on the data, not the property.
"Built 1900" is usually a placeholder
Philadelphia records use 1900 as a stand-in when the real construction year was never documented. Treat the age as unknown, not as 120+ years.
The property, on paper
OPA physical field record.
Bedrooms
4
Bathrooms
3
Stories
3
Interior
2,316 sqft
livable area
Lot
900 sqft
Basement
Full, finished
city code A
Heat
Forced hot air
city code A
Central air
Yes
Garage
1 space
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
New / rehabbed
city code 2
New / rehabbed
Quality grade
C
assessor's grade
ABCDE
Zoning
RMX3
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
400 block of N 20th St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 427 N 20th St · 425 N 20th 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 14 dated rows
- InvestigationL&I investigation
Case CF-2024-003899 · PASSED
The cited inspection visit was marked passed.
- PermitAlterations
Permit PP-2024-001071 · Completed
REPAIR/REPLACE CT & FAI
- ViolationWORK NOT ACCORDING TO PLANS
Case CF-2024-003899 · Violation VI-2024-003350 · Code A-302.10/2 · COMPLIED
Resolution: COMPLIED - PERMIT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationARCHITECT/ENGINEER SERVICES
Case CF-2024-003899 · Violation VI-2024-003349 · Code A-304.1/1 · COMPLIED
Resolution: COMPLIED - PERMIT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationL&I investigation
Case CF-2024-003899 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitAddition and/or Alteration
Permit EP-2024-000182 · Completed
Rewire single family home with new receptacles and lighting. New 200A electric service.
- PermitAddition and/or Alterations
Permit MP-2023-005560 · Completed
EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES - For the installation of New Ductwork, Registers/Grilles/Diffusers, and Warm-Air Appliances as per attached standards. Deviations from these standards require submission of construction and site plans. 2 heaters and condensers, new ductwork, & 12 registers
- Recorded transfer$990K transfer
2024
- PermitAlterations
Permit PP-2023-016801 · Completed
REPLACE supply lines and drainage pipes for 1 kitchen sink, 1 laundry sink, 1 toilet, 1 vanity & 1 shower. AMEND TO TOTAL 4-WC, 4-LAV, 3-SHOWERS, 1-KS & 1-LS.
- PermitExcavation
Permit SP-2023-000647 · Completed
FOR THE EXCAVATION AND UNDERPINNING OF REAR SECTION OF EXISTING BASEMENT SLAB AS PER APPROVED PLANS. FOR A SINGLE-FAMILY HOUSEHOLD LIVING. **************SEPARATE PERMITS FOR ALL OTHER WORK.***********************
- PermitAddition and/or Alteration
Permit RP-2023-007191 · Completed
Amend permit 2/5/2024- interior layout and structure changes on the second and third floor. There is no increase in area, height, or proposed scope of work .FOR THE INTERIOR RENOVATION AND RECONFIGURATION OF AN EXISTING 3 STORY SINGLE FAMILY DWELLING, WITH EXISTING CELLAR SLAB TO BE DEMOLISHED AND EXCAVATED DEEPER. FOR A PROPOSED WALK OUT ROOF DECK ADDITION OVER EXISTING 2ND FLOOR ROOF SURFACE AND ACCESSED BY THE THIRD FLOOR. AND FOR THE REPLACEMENT OF EXTERIOR WINDOWS AND DOORS.
- PermitNew construction, addition, GFA change
Permit ZP-2023-006366 · Completed
FOR A PROPOSED WALK OUT ROOF DECK ADDITION OVER EXISTING 2ND FLOOR REAR ROOF SURFACE ACCESSED BY THE THIRD FLOOR OF A SINGLE-FAMILY DWELLING, SIZE AND LOCATION AS PER PLAN.
- PermitInterior Non-Load-Bearing Wall Demo.
Permit GM-2023-005725 · Completed
For minor construction work at the subject property in accordance with all applicable provisions of the Philadelphia Code, all references codes and standards, and the attached EZ Standard, where included. Deviation from this standard shall result in permit revocation. A separate permit from the Philadelphia Department of Streets is required for any sidewalk and street closures. All means of pedestrian protection required at the site in accordance with the Philadelphia Building Code Chapter 33 shall be in place prior to start of work.
- Recorded transfer$475K transfer
2023
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, 9:14 AM 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)