2026 taxable assessment $180,900 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $284,900; it is not the 2026 billed-year value.
House report
163 Mifflin St
2 bd · 1 ba · 2 stories · 1,158 sqft · RSA5 · built 1905
Owner-occupancy signal · assessed $281K (2026) · 2027 OPA assessment $285K. On the 100 block of Mifflin St.
BlockReport AI · cited public records
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Property summary
Assessment$280,9002026 OPA assessment · 2027: $284,900
Last sale—No sale value available
Est. tax bill$2,532/year2026 OPA · Homestead-adjusted
Tax delinquencyNo 2022 matchNot proof account is current
Permits5Every fetched City permit
Violations0 openNo historical match in fetched records
“Open” reflects records available then historical records keep their source dates estimates are labeled
Question or correct this record
BlockReport can explain a discrepancy, but it cannot rewrite an official City record. Use the agency that owns the underlying fact:
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.
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 0111716002026 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.”
What stands out
From the public recordPermit on record
Record summaryAddition and/or Alteration permit recorded in 2022.
View supporting records →What to do with this
The record, translated into moves — what a buyer, the owner, and a landlord would each want to check next under Philadelphia's actual rules.
If you’re buying
Built 1905: lead rules apply
Federal law requires a lead-paint disclosure at sale for any pre-1978 home. If it will be rented, Philadelphia also requires a lead-safe or lead-free certificate before a rental license can issue.
Zoned RSA5: one household by right
Single-family rowhouse (the classic Philly row). Converting to a duplex or apartments needs a use variance the zoning board rarely grants — Pennsylvania courts require a physical hardship of the lot itself, and economics alone do not qualify.
The last transfer used nominal consideration
The latest deed records $100 or less and shared-name parties. That is not a usable market-sale price and can reflect a family, estate, gift, correction, or entity transfer. Inspect the deed and order a title search rather than inferring the relationship or chain.
Derived from the fetched property records and linked City guidance as of 2026. Assessment treatment is not a substitute for an exemption approval, live balance, title report, license, occupancy certificate, or inspection. Informational only — not legal, tax, or investment advice.
Assessment and tax history
Every fetched annual City assessment for this house, compared with its block and ZIP. The figures show assessment change, the billed-year tax estimate, dated tax records, and recorded transfers. They do not estimate market appreciation or investment return.
Assessed value
$280,900
2026 billed-year assessment · 2027: $284,900 · built 1905
Price / sq ft
$246
block $246 · in line w/ block
Assessment change
+63%
+5%/yr since 2016 · 2027 +1% vs 2026
Est. tax bill / yr
$2,532
0.9% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Times sold
0
latest deed has shared-name parties
Assessment vs. the block and ZIP · every dated City record marked on the line
- OPA assessment · 2016$175K 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$175K 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$175K 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$205K 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$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 · 2021$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 · 2022$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 · 2023$252K 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$252K 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$281K 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$281K 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$285K 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 · 2021-07-13AlterationsThis 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 · 2022-12-28Addition 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 · 2022-12-23AlterationsThis 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 ↗
Property assessmentBlock median & rangeZIP 19148 medianAssessmentPermit
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.
Every dated record3 events · exact dates, newest first
- PermitAddition and/or Alteration
- PermitAlterations
- PermitAlterations
The paper trail
Permit on recordAddition and/or Alteration permit recorded in 2022.
- 2021 AlterationsPermit
- 2022 Addition and/or AlterationPermitAddition and/or AlterationPermitAlterationsPermitAddition and/or AlterationPermit
Records behind the chart
Browse the source ledger
The chart above is the primary timeline. This drawer preserves every underlying dated row and its filed status for source-level review.
Browse 5 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- PermitAddition and/or Alteration
Permit EP-2022-012880 · Completed
Install new lighting in living room, dining room, kitchen, and bathroom. All wiring to be fished. Replace existing switches and receptacles in living room, dining room, kitchen, and bathroom as per 2017 nec
- PermitAlterations
Permit PP-2022-018429 · Completed
AMENDMENT Replacing water & drain lines for kitchen sink and washer machine. Installation of new washer & kitchen sink Installation of drain and water lines for bathroom sink, toilet and bath tub to include installation of fixtures
- PermitAddition and/or Alteration
Permit RP-2022-013818 · Completed
EZ PERMIT STANDARDS ALTERATIONS- For alterations to an Existing One Family Dwelling as per attached standard. Deviations from this standard will result in permit revocation and require submission of construction plans. Structural alteration or repair is expressly PROHIBITED under this permit. Prohibited structural work includes but not limited to any modification to exterior walls, party wall, floor/roof framing and foundations; including underpinning, excavation and removed of foundation slab. 2nd FLOOR BATHROOM - remove existing GWB from walls and ceiling and install new 1/2" MR GWB & 1st FLOOR KITCHEN - Laminate over walls and ceiling with new 1/2" GWB. Separate permits are required for plumbing and electrical work and the installation of heating/cooling appliances.
- PermitAddition and/or Alteration
Permit EP-2022-005846 · Completed
New Circuit to be installed to each room/area including AFCI protection where required for safety. Front bedroom Middle bedroom Rear bedroom Bathroom 20 amp 2nd floor, hallway and general shared lighting circuit Living room Dining room 20 amp Kitchen 15 amp general lighting and power for range and hood Kitchen 20 amp x 2 (for refrigerator and general power for portable appliance/microwave. Kitchen wiring is normally separate and reserved for installation during full renovation but this minimal amount should be installed now.) Basement general lighting circuit and power for smoke/CO system Basement laundry 20 amp (new line for laundry and removal of old circuit) 1st floor powder room 20 amp (replace existing older wiring) Refeed doorbell system (if functional) Confirm furnace power and reconnect if necessary 15 Amp AFCI Circuit x8 20 Amp AFCI Circuit x6 New wiring for Outlets to be installed to existing locations or new locations as detailed below: Front bedroom x 4 Middle bedroom x 4 Rear bedroom x 3 2nd floor bathroom GFCI ADD Hallway x 3 Living room x 5 Dining room x 3 Kitchen x 2 outlets for range and power for hood Kitchen x 4(outlet on rear wall GFCI, wall outlet next to door rewire GFCI, add GFCI next to refrigerator for microwave(or discuss with owner if another location would better serve the microwave, rewire/refeed refrigerator outlet) NOTE: The wall outlet next to the phone can be capped and relocated to serve the laundry machine or other purpose if more practical. We discussed possibly setting up a table and using it for a kitchen appliance) 1st floor powder room GFCI Rear exterior add GFCI Basement laundry GFCI 15 amp Duplex x19 20 amp Duplex x3 15 amp GFCI x1 20 amp GFCI x5 New Wiring for Light and Switch to be installed to rewire existing location, relocate or Add, including fixture support box and installation of owner provided fixture or reinstallation of existing fixture, as detailed below
- PermitAlterations
Permit PP-2021-012389 · Completed
Replace curb trap, main drain, fai, and back water valve
What this record suggests
The City file documents 5 permits touching kitchen work, bathroom work, electrical work, plumbing. 5 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
Flags: latest deed has shared-name parties — relationship unverified. Informational only — not investment advice or a consumer report (FCRA).
The property, on paper
The city assessor's field record — the physical spec sheet behind the assessed number.
Bedrooms
2
Bathrooms
1
Stories
2
Interior
1,158 sqft
livable area
Lot
915 sqft
Basement
Full, unfinished
city code C
Heat
Forced hot air
city code A
Central air
No
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
Average
city code 4
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
163 Mifflin St sits on the 100 block of Mifflin St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 161 Mifflin St · 165 Mifflin St
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 10, 2026, 9:03 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)